Check process generating high disk I/O read

Hi Gurus,
In Solaris 8, which command can I use to check the process that is generating high disk IO read ?
Mav

I do not know which file is generating high disk IO read.
Is there a command to check which process is generating more Disk IO read ?
I'm using iostat to check Disk IO read every 15 minutes and output to a log file. But I'm unable to determine
which process is causing high Disk IO read at times.

Similar Messages

Command to find the top unix processes doing high disk read and writes

I would like to know 'the unix command to find the top unix processes doing high disk reads or/and writes
If any one knows the solution please help me?
-Swamy

From the oracle side you can obtain OS process id for sessions having some waits for user I/O
select p.spid, s.sid, s.sql_id
from v$session s, v$process p
where s.paddr=p.addr
and s.sid in
select sid from v$session_wait
where wait_class='User I/O'
);and to see sessions that are currently waiting on user I/O use
select p.spid, s.sid, s.sql_id
from v$session s, v$process p
where s.paddr=p.addr
and s.sid in
select sid from v$session_wait
where wait_class='User I/O'
and wait_time=0
);HTH, Peter

XML Query Have High Disk Reads.

Question regarding XML data. When I query the following sql statement, the performance is fast. In addition, the explain plan shows that this query is efficient and utliizing all the indexes. However, when I query the v$sql table, I see that this query has very high physical read. Any idea as to why this query has a high physical read?
SELECT lpcs.TEXT_LOAN_PCH_CONT_CNTNT_XML.extract('/').getClobVal() as TEXT_CNTNT_XML
FROM REFTDBR1.LOAN_PCH_CONT_CNTNT_SET lpcs
WHERE lpcs.ID_LOAN_PCH_CONT = '9c24ede6-2bf0-4a9c-8345-fa986ec7516c'
AND lpcs.ind_deltn = 'N'
AND lpcs.ind_curr = 'Y'
DISK_READS
73488233

We're on Oracle 11Rg1 RAC with ASM architecture on Liinux platform. Below is the explain plan
SQL> explain plan for SELECT lpcs.TEXT_LOAN_PCH_CONT_CNTNT_XML.extract('/').getClobVal() as TEXT_CNTNT_XML
FROM REFTDBR1.LOAN_PCH_CONT_CNTNT_SET lpcs
WHERE lpcs.ID_LOAN_PCH_CONT = :1
AND lpcs.ind_deltn = 'N'
AND lpcs.ind_curr = 'Y' ;
Explained.
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 3814252188
Id Operation Name Rows Bytes Cost (%CPU) Time
0 SELECT STATEMENT 1 128 5 (0) 00:00:01
1 TABLE ACCESS BY INDEX ROWID LOAN_PCH_CONT_CNTNT_SET 1 128 5 (0) 00:00:01
* 2 INDEX RANGE SCAN LOAN_PCH_CONT_CNTNT_SET_X2 1 3 (0) 00:00:01
Predicate Information (identified by operation id):
PLAN_TABLE_OUTPUT
2 - access("LPCS"."ID_LOAN_PCH_CONT"=:1 AND "LPCS"."IND_CURR"='Y' AND "LPCS"."IND_DELTN"='N')
14 rows selected
This query was executed 1623 times so I guess that could explain the high disk reads? Does this mean that this query is not being stored in the buffer cache since the disk reads are high?
DISK_READS 73488233
FETCHES 1623
EXECUTIONS 1623

I'm running Lion on a Late 2008 MacBook Air. With no other applications running, I can no longer Check for Software Updates. It gets abut half way through the checking process and then freezes. The MBA passes Disk Utility. Thoughts?

I'm running Lion on a Late 2008 MacBook Air.
With no other applications running, I can no longer Check for Software Updates. It gets about half way through the checking process and then freezes.
The MBA passes Disk Utility. Thoughts?
Thanks
Jim Taylor

How long do you leave it?
Mine can sometimes sit for quite a while (maybe 10 minutes??) before it finally finishes.
You could look at the relevant logs via Console (Utilities folder) to see if Software Update is complaining about anything.
charlie

High Disk I/O Problem

Hello all
why every server have a capture Process have this problem "High Disk I/O" ???
in all configurations , transactions load (high or low) , number of connections (high or low)
i try to keep server without any transactions or any connections for 6 day and i still have this Problem
it seems a serious problem without fixing
release 10.2.0.1

hi rijesh
SEGMENT_NAME Size in MB SUM(BLOCKS)
LOGMNR_RESTART_CKPT$ .5 64
in Oracle Enterprise manager wait event is :
Wait event "Streams capture: waiting for archive log" in wait class "Other" was consuming significant database time.
i traced session that cause this wait event and generate tkprof file but i think there is nothing useful :
{color:#0000ff}TKPROF: Release 10.2.0.1.0 - Production on Mon Nov 17 16:08:35 2008
Copyright (c) 1982, 2005, Oracle. All rights reserved.
{color}
{color:#0000ff}Trace file: C:\oracle\admin\test\bdump\test_p000_3740.trc
Sort options: prsdsk exedsk fchdsk
count = number of times OCI procedure was executed
cpu = cpu time in seconds executing
elapsed = elapsed time in seconds executing
disk = number of physical reads of buffers from disk
query = number of buffers gotten for consistent read
current = number of buffers gotten in current mode (usually for update)
rows = number of rows processed by the fetch or execute call
Trace file: C:\oracle\admin\test\bdump\test_p000_3740.trc
Trace file compatibility: 10.01.00
Sort options: prsdsk exedsk fchdsk
1 session in tracefile.
0 user SQL statements in trace file.
0 internal SQL statements in trace file.
0 SQL statements in trace file.
0 unique SQL statements in trace file.
10268 lines in trace file.
0 elapsed seconds in trace file.
{color}
i tried to open trace file "test_p000_3740.trc" and i found this :
{color:#0000ff}Dump file c:\oracle\admin\test\bdump\test_p000_3740.trc
Mon Nov 17 14:52:21 2008
ORACLE V10.2.0.1.0 - Production vsnsta=0
vsnsql=14 vsnxtr=3
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, Oracle Label Security, OLAP and Data Mining options
Windows Server 2003 Version V5.2 Service Pack 1
CPU : 4 - type 586, 1 Physical Cores
Process Affinity : 0x00000000
Memory (Avail/Total): Ph:2789M/4094M, Ph+PgF:4519M/5972M, VA:1627M/2047M
Instance name: test
{color}
{color:#0000ff}Redo thread mounted by this instance: 1
Oracle process number: 29
{color}
{color:#0000ff}Windows thread id: 3740, image: ORACLE.EXE (P000)
*** 2008-11-17 14:52:21.652
*** SERVICE NAME:(SYS$USERS) 2008-11-17 14:52:21.652
*** SESSION ID:(144.2) 2008-11-17 14:52:21.652
WAIT #0: nam='control file sequential read' ela= 234 file#=0 block#=1 blocks=1 obj#=-1 tim=3793171610
WAIT #0: nam='control file sequential read' ela= 294 file#=1 block#=1 blocks=1 obj#=-1 tim=3793186744
WAIT #0: nam='control file sequential read' ela= 208 file#=2 block#=1 blocks=1 obj#=-1 tim=3793187894
WAIT #0: nam='control file sequential read' ela= 182 file#=0 block#=16 blocks=1 obj#=-1 tim=3793188866
WAIT #0: nam='control file sequential read' ela= 233 file#=0 block#=18 blocks=1 obj#=-1 tim=3793189902
WAIT #0: nam='log file sequential read' ela= 12608 log#=0 block#=43745 blocks=8192 obj#=-1 tim=3793255308
WAIT #0: nam='log file sequential read' ela= 68218 log#=0 block#=43745 blocks=8192 obj#=-1 tim=3793363640
WAIT #0: nam='log file sequential read' ela= 100 log#=0 block#=1 blocks=1 obj#=-1 tim=3793518549
WAIT #0: nam='log file sequential read' ela= 89 log#=0 block#=1 blocks=1 obj#=-1 tim=3793541091
WAIT #0: nam='control file sequential read' ela= 14717 file#=0 block#=1 blocks=1 obj#=-1 tim=3793556425
WAIT #0: nam='control file sequential read' ela= 6630 file#=1 block#=1 blocks=1 obj#=-1 tim=3793563619
WAIT #0: nam='control file sequential read' ela= 9355 file#=2 block#=1 blocks=1 obj#=-1 tim=3793573635
WAIT #0: nam='control file sequential read' ela= 11426 file#=0 block#=16 blocks=1 obj#=-1 tim=3793585608
WAIT #0: nam='control file sequential read' ela= 201 file#=0 block#=18 blocks=1 obj#=-1 tim=3793586348
WAIT #0: nam='control file sequential read' ela= 190 file#=0 block#=1 blocks=1 obj#=-1 tim=3793587134
WAIT #0: nam='control file sequential read' ela= 186 file#=1 block#=1 blocks=1 obj#=-1 tim=3793587842
WAIT #0: nam='control file sequential read' ela= 185 file#=2 block#=1 blocks=1 obj#=-1 tim=3793588548
WAIT #0: nam='control file sequential read' ela= 187 file#=0 block#=16 blocks=1 obj#=-1 tim=3793589241
WAIT #0: nam='control file sequential read' ela= 185 file#=0 block#=18 blocks=1 obj#=-1 tim=3793589944
WAIT #0: nam='log file sequential read' ela= 72452 log#=0 block#=43745 blocks=8192 obj#=-1 tim=3793663620
WAIT #0: nam='log file sequential read' ela= 106739 log#=0 block#=43745 blocks=8192 obj#=-1 tim=3793771943
WAIT #0: nam='log file sequential read' ela= 95 log#=0 block#=1 blocks=1 obj#=-1 tim=3793908609
WAIT #0: nam='log file sequential read' ela= 111 log#=0 block#=1 blocks=1 obj#=-1 tim=3793925054
WAIT #0: nam='control file sequential read' ela= 22382 file#=0 block#=1 blocks=1 obj#=-1 tim=3793948070
WAIT #0: nam='control file sequential read' ela= 6591 file#=1 block#=1 blocks=1 obj#=-1 tim=3793955243
WAIT #0: nam='control file sequential read' ela= 9478 file#=2 block#=1 blocks=1 obj#=-1 tim=3793965270
WAIT #0: nam='control file sequential read' ela= 11449 file#=0 block#=16 blocks=1 obj#=-1 tim=3793977257
WAIT #0: nam='control file sequential read' ela= 203 file#=0 block#=18 blocks=1 obj#=-1 tim=3793977980
{color}
any suggestions my friend
Best regards
Edited by: wassim haddad on Nov 17, 2008 5:47 AM

Kernal Task Usage High - Disk Tab not CPU?

Greetings support community. My mac is running awfully slow. Often the fan gets loud - spinning beach balls - and apps stop responding all the time.
I'm look for some suggestion as I travel outside the US for work regularly and CANNOT risk loosing this MAC just yet. I have yet to attempt to reformat/repair but I know that is the next right step before I commit to buying a new device.
Below is a scan from EtreCheck. Can anyone help me decipher this?
I'm resisting panicing - I know this should be fixable I just need some guidance on where to start. Also see screen shot of activity monitor under disk tab - kernel tasks are using up 2 gbs! That has to be insanely wrong right?
Problem description:
slow mac - kernel task usage large
EtreCheck version: 2.0.2 (86)
Report generated October 12, 2014 at 6:57:01 PM EDT
Hardware Information: ℹ️
MacBook Pro (13-inch, Early 2011) (Verified)
MacBook Pro - model: MacBookPro8,1
1 2.7 GHz Intel Core i7 CPU: 2-core
4 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
Intel HD Graphics 3000 - VRAM: 384 MB
Color LCD 1280 x 800
System Software: ℹ️
OS X 10.9.4 (13E28) - Uptime: 2 days 8:50:24
Disk Information: ℹ️
TOSHIBA MK5065GSXF disk0 : (500.11 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / [Startup]: 499.25 GB (188.00 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
MATSHITADVD-R   UJ-8A8
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/System/Library/Extensions
[loaded] com.rim.driver.BlackBerryUSBDriverInt (0.0.74) Support
[not loaded] com.rim.driver.BlackBerryUSBDriverVSP (0.0.74) Support
[not loaded] com.wdc.driver.1394_64HP (1.0.0 - SDK 10.6) Support
[not loaded] com.wdc.driver.USB_64HP (1.0.0 - SDK 10.6) Support
[loaded] tw.com.mct.MCT_Trigger2 (2011.07.21 - SDK 10.8) Support
Launch Agents: ℹ️
[not loaded] com.adobe.AAM.Updater-1.0.plist Support
[running] com.epson.epw.agent.plist Support
[loaded] com.google.keystone.agent.plist Support
[loaded] com.oracle.java.Java-Updater.plist Support
[running] com.rim.BBAlbumArtCacher.plist Support
[running] com.rim.BBLaunchAgent.plist Support
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist Support
[invalid?] com.adobe.SwitchBoard.plist Support
[loaded] com.google.keystone.daemon.plist Support
[loaded] com.microsoft.office.licensing.helper.plist Support
[loaded] com.oracle.java.Helper-Tool.plist Support
[loaded] com.oracle.java.JavaUpdateHelper.plist Support
[running] com.rim.BBDaemon.plist Support
[running] com.wdc.SmartwareDriveService.plist Support
[running] com.wdc.WDSmartWareService.plist Support
User Launch Agents: ℹ️
[loaded] com.adobe.AAM.Updater-1.0.plist Support
[loaded] com.adobe.ARM.[...].plist Support
[loaded] com.facebook.videochat.[redacted].plist Support
[running] com.spotify.webhelper.plist Support
User Login Items: ℹ️
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
AdobeResourceSynchronizer Application (/Applications/Adobe Reader.app/Contents/Support/AdobeResourceSynchronizer.app)
Android File Transfer Agent Application (/Users/[redacted]/Library/Application Support/Google/Android File Transfer/Android File Transfer Agent.app)
Dropbox Application (/Applications/Dropbox.app)
AdobeResourceSynchronizer Application (/Applications/Adobe Acrobat XI Pro/Adobe Acrobat Pro.app/Contents/Support/AdobeResourceSynchronizer.app)
BlackBerry Device Manager ApplicationHidden (/Library/Application Support/BlackBerry/BlackBerry Device Manager.app)
WDQuickView Application (/Library/Application Support/WDSmartWare/WDQuickView.app)
Internet Plug-ins: ℹ️
o1dbrowserplugin: Version: 5.4.2.18903 Support
Default Browser: Version: 537 - SDK 10.9
AdobeAAMDetect: Version: AdobeAAMDetect 1.0.0.0 - SDK 10.6 Support
FlashPlayer-10.6: Version: 15.0.0.152 - SDK 10.6 Support
AdobePDFViewerNPAPI: Version: 11.0.07 - SDK 10.6 Support
Silverlight: Version: 5.1.20913.0 - SDK 10.6 Support
Flash Player: Version: 15.0.0.152 - SDK 10.6 Support
QuickTime Plugin: Version: 7.7.3
googletalkbrowserplugin: Version: 5.4.2.18903 Support
SharePointBrowserPlugin: Version: 14.4.4 - SDK 10.6 Support
AdobePDFViewer: Version: 11.0.07 - SDK 10.6 Support
JavaAppletPlugin: Version: Java 7 Update 51 Check version
User Internet Plug-ins: ℹ️
Google Earth Web Plug-in: Version: 7.1 Support
3rd Party Preference Panes: ℹ️
Flash Player Support
Java Support
Perian Support
Time Machine: ℹ️
Skip System Files: NO
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 499.25 GB Disk used: 311.24 GB
Destinations:
Ash [Local]
Total size: 499.27 GB
Total number of backups: 4
Oldest backup: 2013-07-14 01:57:15 +0000
Last backup: 2013-11-29 03:13:50 +0000
Size of backup disk: Too small
Backup size 499.27 GB < (Disk used 311.24 GB X 3)
Top Processes by CPU: ℹ️
      15% WindowServer
      2% com.apple.WebKit.Networking
      2% Safari
      1% hidd
      1% BBLaunchAgent
Top Processes by Memory: ℹ️
324 MB com.apple.WebKit.WebContent
245 MB Finder
159 MB com.apple.IconServicesAgent
103 MB mds_stores
86 MB Dropbox
Virtual Memory Information: ℹ️
50 MB Free RAM
1.52 GB Active RAM
1.51 GB Inactive RAM
1.18 GB Wired RAM
2.52 GB Page-ins
13 MB Page-outs

So I ran the Disk Repair in safe mode & out of.
Both were very clean. See below.
I'm not sure where to go from here. It was running pretty nicely in safe mode - I didn't try to open a photoshop though which will usually slow up my machine.
But I did open my firefox when I went back out of safe mode and my whole thing froze up immediately as the first operation and required a force quit. UGH
I closed it down - restarted - tried with safari - I can browse (weird though that my airport is dimmed out but I still have full connection to my wifi)
My kernal_task tho seems to be way more in check since I verified disk - but I'm getting some spinning beach balls still and firefox not responded.
I dont have a....
Library/StartupItems or
System/Library/StartupItems
nor do i have a STARTUPitems folder in my private/var/run
I do have....
Library/LaunchDaemons: should i delete all these? or some?
com.adobefpsaud.plist     I dont store my adobe files in the cloud - is that what this is trying to prompt? should i delete?
com.adobe.switchboard.plist     ditto?
com.google.keystone.daenib.plist    huh?
com.microsoft.office.licensing.helper.plist    whats this from office? why is that opening on start? should i delete?
com.oracle.java.helper-tool.plist     ??
com.oracle.java.javaupdatehelper.plist    ??
com.wdc.SmartwareDriveService.plist    this is my backup - but I don't run that everyday.
com.wdc.wDSmartwareServiice.plist     ditto
In my System/Library/LaunchDaemons i have MANY com.apple......prompts - I'm assuming these are not meant to be deleted?
But outside of that there are a few extras (listed below) - should I delete these?
com.danga.memcached.plist
com.vix.cron.plist
exec.plist
finger.plist
ftp.plist
login.plist
ntalk.plist
org.apache.httpd.plist
org.cups.cups-Ipd.plist
org.cups.cupsd.plist
org.net-snmp.snmpd.plist
org.openldap.slapd.plist
org.postfix.master.plist
shell.plist
ssh.plist
telnet.plist
tftp.plist
WHAT ARE THESE?
I think the only things in my other row in my system preferences are
-Java
-Perian
-Flash Player
any more suggestions? thank you so much for your assistance!

20gb iPod, error 1418, "disk cannot be read from or written to", and others

I am having a series of serious issues with my 4th gen 20gb. I have tried restoring it several times, syncing if and when it restores, then restoring it again when it tells me "disk cannot be read from or written to". Sometimes when I try restoring it i get the "unknown error 1418" message, so I disconnect the iPod and try again; sometimes it restores, sometimes it doesn't. I have also tried plain resetting it (select+menu) and that either gives me the dead smiley ipod or a folder with an exclamation point.
What can I do to salvage my beloved iPod?
Thanks for any and all help.

If a sad iPod icon or an exclamation point and folder icon appears on your iPod’s screen, or with sounds of clicking or HD whirring, it is usually the sign of a hard drive problem and you have the power to do something about it now. Your silver bullet of resolving your iPod issue – is to restore your iPod to factory settings.
http://docs.info.apple.com/article.html?artnum=60983
If you're having trouble, try these steps at different levels one at a time until the issue is resolved. These steps will often whip your iPod back into shape.
Make sure you do all the following “TRYs”
A. Try to wait 30 minutes while iPod is charging.
B. Try another FireWire or USB through Dock Connector cable.
C. Try another FireWire or USB port on your computer .
D. Try to disconnect all devices from your computer's FireWire and USB ports.
E. Try to download and install the latest version of iPod software and iTunes
http://www.apple.com/itunes/download/
For old and other versions of iPod updater for window you can get here
http://www.ipodwizard.net/showthread.php?t=7369
F. Try these five steps (known as the five Rs) and it would conquer most iPod issues.
http://www.apple.com/support/ipod/five_rs/
G. Try to put the iPod into Disk Mode if it fails to appear on the desktop
http://docs.info.apple.com/article.html?artnum=93651
If none of these steps address the issue, you may need to go to Intermediate level listed below in logical order. Check from the top of the lists to see if that is what keeping iPod from appearing on your computer in order for doing the Restore.
Intermediate Level
A. Try to connect your iPod with another computer with the iPod updater pre-installed.
B. Still can’t see your iPod, put it in Disk Mode and connect with a computer, instead of doing a Restore on iPod Updater. Go and format the iPod instead.
For Mac computer
1. Open the disk utility, hope your iPod appears there (left hand side), highlight it
2. Go to Tab “Partition”, click either “Delete” or “Partition”, if fails, skip this step and go to 3
3. Go to Tab “Erase” , choose Volume Format as “MAC OS Extended (Journaled), and click Erase, again if fails, skip it and go to 4
4. Same as step 3, but open the “Security Options....” and choose “Zero Out Data” before click Erase. It will take 1 to 2 hours to complete.
5. Eject your iPod and do a Reset
6. Open the iTunes 7 and click “Restore”
For Window computer
Go to folder “My Computer”
Hope you can see your iPod there and right click on the iPod
Choose “Format”. Ensure the settings are at “Default” and that “Quick Format” is not checked
Now select “Format”
Eject your iPod and do a Reset
Open the iTunes 7 and click “Restore”
In case you do not manage to do a “Format” on a window computer, try to use some 3rd party disk utility software, e.g.“HP USB Disk Storage Format Tool”.
http://discussions.apple.com/thread.jspa?threadID=501330&tstart=0
C. Windows users having trouble with their iPods should locate a Mac user. In many cases when an iPod won't show up on a PC that it will show up on the Mac. Then it can be restored. When the PC user returns to his computer the iPod will be recognized by the PC, reformatted for the PC, and usable again. By the way, it works in reverse too. A Mac user often can get his iPod back by connecting it to a PC and restoring it.
Tips
a. It does not matter whether the format is completed or not, the key is to erase (or partly) the corrupted firmware files on the Hard Drive of the iPod. After that, when the iPod re-connected with a computer, it will be recognized as an fresh external hard drive, it will show up on the iTunes 7.
b. It is not a difficult issue for a Mac user to find a window base computer, for a PC user, if they can’t find any Mac user, they can go to a nearest Apple Shop for a favor.
c. You may need to switch around the PC and Mac, try to do several attempts between “Format” and “Restore”
http://discussions.apple.com/thread.jspa?messageID=2364921&#2364921
Advance Level
A. Diagnostic mode solution
If you have tried trouble shooting your iPod to no avail after all the steps above, chances are your iPod has a hardware problem. The iPod's built-in Diagnostic Mode is a quick and easy way to determine if you have a "bad" iPod.
You need to restart your iPod before putting it into Diagnostic Mode. Check that your hold switch is off by sliding the switch away from the headphone jack. Toggle it on and off to be safe.
Press and hold the following combination of buttons simultaneously for approximately 10 seconds to reset the iPod.
iPod 1G to 3G: "Menu" and "Play/Pause"
iPod 4G+ (includes Photo, Nano, Video, and Mini): "Menu" and "Select"
The Apple logo will appear and you should feel the hard drive spinning up. Press and hold the following sequence of buttons:
iPod 1G to 3G: "REW", "FFW" and "Select"
iPod 4G+ (includes Photo, Nano, Video, and Mini): "Back" and "Select"
You will hear an audible chirp sound (3G models and higher) and the Apple logo should appear backwards. You are now in Diagnostic Mode. Navigate the list of tests using "REW" and "FFW". The scroll wheel will not function while in diagnostic mode. For further details on Diagnostic mode can be found at http://www.methodshop.com/mp3/ipodsupport/diagnosticmode/
Try to do the 5in1, HDD R/W and HDD scan tests. Some successful cases have been reported after the running the few tests under the Diagnostic mode. In case it does not work in your case, and the scan tests reports show some errors then it proves your iPod has a hardware problem and it needs a repairing service.
B. Format your iPod with a start disk
I have not tried this solution myself, I heard that there were few successful cases that the users managed to get their iPod (you must put your iPod in disk mode before connecting with a computer) mounted by the computer, which was booted by a system startup disk. For Mac, you can use the Disk Utility (on the Tiger OS system disk), for PC user, you can use the window OS system disk. Try to find a way to reformat your iPod, again it does not matter which format (FAT32, NTFS or HFS+) you choose, the key is to erase the corrupted system files on the iPod. Then eject your iPod and do a Reset to switch out from Disk Mode. Reboot your computer at the normal way, connect your iPod back with it, open the iPod updater, and hopefully your iPod will appear there for the Restore.
If none of these steps address the issue, your iPod may need to be repaired.
Consider setting up a mail-in repair for your iPod http://depot.info.apple.com/ipod/
Or visit your local Apple Retail Store http://www.apple.com/retail/
In case your iPod is no longer covered by the warranty and you want to find a second repairing company, you can try iPodResQ or ifixit at your own risk
http://www.ipodresq.com/index.php
http://www.ifixit.com/
Just in case that you are at the following situation
Your iPod warranty is expired
You don’t want to pay any service charges
You are prepared to buy a new one
You can’t accept the re-sell value of your broken iPod
Rather than leave your iPod as paper-weight or throw it away.
You can try the following, but again, only do it as your last resort and at your own risk.
Warning !!!! – It may or may not manage to solve your problem, and with a risk that you may further damage your iPod, which end up as an expensive paper weight or you need to pay more higher repairing cost. Therefore, please re-consider again whether you want to try the next level
Last Resort Level
1. . Disconnecting the Hard Drive and battery inside the iPod – Warning !! Your iPod warranty will be waived once you open the iPod.
In Hong Kong there are some electronic shops offering an iPod service for Sad iPod, the first thing they do is to open up the iPod’s case and disconnecting the battery and the Hard Drive from the main board of the iPod. Wait for 5-10 minutes and reconnecting them back. The reason behind which I can think of is to do a fully reset of a processor of the iPod. In case you want do it itself and you believe that you are good on fixing the electronics devices and have experience to deal with small bits of electronic parts, then you can read the following of how to open the iPod case for battery and HDD replacement (with Quicktimes)
http://eshop.macsales.com/tech_center/index.cfm?page=Video/directory.html
2.Press the reset button on the Hard Drive inside the iPod – Suggestion from Kill8joy
http://discussions.apple.com/thread.jspa?messageID=2438774#2438774
Have I tried these myself? No, I am afraid to do it myself as I am squeamish about tinkering inside electronic devices, I have few experiences that either I broke the parts (which are normally tiny or fragile) or failed to put the parts back to the main case. Therefore, I agree with suggestion to have it fixed by a Pro.
2. Do a search on Google and some topics on this discussion forum about “Sad iPod”
Exclamation point and folder and nothing else
http://discussions.apple.com/thread.jspa?messageID=3597173#3597173
Exclamation point and folder and nothing else
http://discussions.apple.com/thread.jspa?messageID=2831962#2831962
What should I do with my iPod? Send it or keep it?
http://discussions.apple.com/thread.jspa?threadID=469080&tstart=0
Strange error on iPod (probably death)
http://discussions.apple.com/thread.jspa?threadID=435160&start=0&tstart=0
Sad Face on iPod for no apparent reason
http://discussions.apple.com/thread.jspa?threadID=336342&start=0&tstart=0
Meeting the Sad iPod icon
http://askpang.typepad.com/relevanthistory/2004/11/meeting_thesad.html#comment-10519524
Sad faced iPod, but my computer won’t recognize it?
http://discussions.apple.com/thread.jspa?messageID=2236095#2236095
iPod Photo: unhappy icon + warranty question
http://discussions.apple.com/thread.jspa?messageID=2233746#2233746
4th Gen iPod Users - are we all having the same problem?
http://discussions.apple.com/message.jspa?messageID=2235623#2235623
Low Battery, and clicking sounds
http://discussions.apple.com/thread.jspa?messageID=2237714#2237714
Sad faced iPod, but my computer won’t recognize it
http://discussions.apple.com/thread.jspa?messageID=2242018#2242018
Sad iPod solution
http://discussions.apple.com/thread.jspa?threadID=412033&tstart=0
Re: try to restore ipod and it says "can't mount ipod"
http://discussions.apple.com/thread.jspa?threadID=443659&tstart=30
iPod making clicking noise and is frozen
http://discussions.apple.com/thread.jspa?messageID=2420150#2420150
Cant put it into disk mode
http://discussions.apple.com/thread.jspa?messageID=3786084#3786084
I think my iPod just died its final death
http://discussions.apple.com/thread.jspa?messageID=3813051
Apple logo & monochrome battery stay
http://discussions.apple.com/thread.jspa?messageID=3827167#3827167
My iPod ism’t resetting and isn’t being read by my computer
http://discussions.apple.com/thread.jspa?messageID=4489387#4489387
I am not suggesting that you should follow as well, but just read them as your reference. You are the person to make the call.
Finally, I read a fair comments from dwb, regarding of slapping the back of the iPod multiple times
Quote “This has been discussed numerous times as a 'fix'. It does work, at least for a while. In fact I remember using the same basic trick to revive Seagate and Quantam drives back in the mid to late 1980's. Why these tiny hard drives go bad I don't know - could be the actuator gets stuck in place or misaligned. Could be the platter gets stuck or the motor gets stuck. 'Stiction' was a problem for drives back in the 80's. Unfortunately the fix can cause damage to the platter so we temporarily fix one problem by creating another. But I know of two instances where a little slap onto the table revived the iPods and they are still worked a year or more later.”UnQuote

[SOLVED] High disk activity after kernel boot

Hi,
after kernel loading (just before getty starts) i notice extremely high disk activity for ~20 seconds for no reason. I think that it is something related to systemd and mount services.
When i set rootfs to read-only in syslinux kernel parameters then the system starts normally without delay. So, i think that something is constantly writing to (or checking?) my hard disk right after boot sequence.
I'm using kernel 3.7.9-1-ARCH.
$ systemd --version
systemd 197
+PAM -LIBWRAP -AUDIT -SELINUX -IMA -SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ
$ systemd-analyze
Startup finished in 3121ms (kernel) + 6238ms (userspace) = 9360ms
$ systemd-analyze blame
1289ms NetworkManager.service
1173ms colord.service
812ms systemd-logind.service
722ms systemd-binfmt.service
660ms systemd-udevd.service
639ms systemd-sysctl.service
314ms tmp.mount
305ms systemd-remount-fs.service
300ms upower.service
219ms systemd-tmpfiles-setup.service
168ms polkit.service
160ms dev-sda2.swap
156ms systemd-vconsole-setup.service
129ms wpa_supplicant.service
125ms dev-mqueue.mount
121ms dev-hugepages.mount
108ms systemd-udev-trigger.service
101ms verynice.service
59ms systemd-user-sessions.service
48ms boot.mount
47ms hpfall.service
46ms home.mount
43ms cpupower.service
27ms sys-kernel-config.mount
4ms proc-sys-fs-binfmt_misc.mount
Syslinux kernel parameters (either ro or rw has the same result)
APPEND root=/dev/sda3 rw nomodeset vga=current clocksource=acpi_pm libahci.ignore_sss=1
Tried also with fsck hook and removing sda3 from fstab
APPEND root=/dev/sda3 rw nomodeset vga=current clocksource=acpi_pm libahci.ignore_sss=1 rootflags=noatime,barrier=0
my fstab:
# UUID=925aba97-6805-442b-bb51-3ea6c16a5a86
/dev/sda3 / ext4 rw,noatime,barrier=0 0 0
# UUID=dd60df02-7992-43c1-a0e0-79441e23268e
/dev/sda1 /boot ext4 rw,noatime 0 0
# UUID=d2621666-f2c5-4f36-8da3-c0f21a23246c
/dev/sda4 /home ext4 rw,noatime 0 0
# UUID=3d70bc7d-5b0c-4adc-ba84-f32c9d132bcc
/dev/sda2 none swap defaults 0 0
Thanks for your time.
Last edited by anelehto (2013-02-23 14:27:41)

It was a problem with preload and its configuration.. I removed it and everything went back to normal!

High disk utilization every 24 hours

Hi all,
While troubleshooting an user's complain about slow access to his mailbox on a Windows 2012/Exchange 2013 environment, I came across this interesting behavior:
Disk utilization on the server will increase from 100KBps to 3000KBps (on average) and stay high for a good 10 hours or so. Then disk activity will go down for exactly 24 hours from the time it was up and increase again for another cycle.
Basically, no matter how long it takes to go down, it will increase again 24 hours later. Looking at Perfmon and Resource Manager all I could see during both periods is that store.worker.exe is always on top, and READ has higher values. The issue does not
appear to be related to business hours / backup window / client access to exchange, as it occurs at different times of the day and changes everyday.
I believe it has something to do with an internal maintenance/reporting/monitoring feature of Exchange 2013, as it happens on 3 Exchange environments we manage, completely apart from each other.
Microsoft Exchange Health Manager service has already been disabled as well as scheduled tasks under Microsoft/Windows/PLA and they all proved not to make a difference.
Any ideas out there?
Diego de Azevedo IT Analyst - MCSE, MCITP

Good Call. I just spent the last few hours going over 550,000 events.
I reviewed the application log for a 24 hour period and here is what I noticed:
During the high disk queue period there are lots of entries for MsExchangeMailboxAssistants. For each of the 15 mailbox databases.
These only run during the High Disk Queues window.
TopN Words
Store DS Maintenance
Sharing Policy
SharePoint Signal Store
Search Index Repair Time Based
People-centric triage
People Relevance
Managed Folder Mailbox
Mailbox Processor
Mailbox Association Replication
Calendar Repair
People Relevance Feeder
Orphaned Mailbox Purge
Here are the examples of the log entries for Event ID 9017
Service MSExchangeMailboxAssistants. TopN Words Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. Store DS Maintenance Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. Sharing Policy Assistant. for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. SharePoint Signal Store Assistant for database *** is entering a work cycle. There are *** mailboxes on this
database.
Service MSExchangeMailboxAssistants. Search Index Repair Time Based Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. People-centric triage for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. People Relevance Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. Managed Folder Mailbox Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. Mailbox Processor Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. Mailbox Association Replication Assistant for database *** is entering a work cycle. There are *** mailboxes
on this database.
Service MSExchangeMailboxAssistants. Calendar Repair Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
There are 3039 of these messages as well:
The people relevance feeder for mailbox *** picked 16 sent items to process. Number of sent items successfully processed 16 and number of sent items failed to be processed 0. Total time taken to process this
mailbox 4539.8548.
It appears the purge of orphaned mailboxes happens only at this time as well .
These run throughout the day and not just 24 hours after the last restart/switchover.
Calendar Sync
Junk Email Options
Probe Time Based
Store Maintenance
Examples of the Event ID 9017
Service MSExchangeMailboxAssistants. Calendar Sync Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. Junk Email Options Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. Probe Time Based Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. Store Maintenance Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
So how do I get the first group of maintenance tasks to run throughout the day, or at different times, or at least not all at the same time for all 15 databases?
Thanks!!
Well, its all workload based, so I don't think you can readily adjust that.
I'm more inclined to look at the specs of the mailbox servers. Are they up to the task and have they been vetted with the Mailbox Calculator?
Twitter!: Please Note: My Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

Performance issue High disk I/O

Hi All,
we have Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production running on REd Hat EE 4
We are having some high disk I/O issues after doing some schema changes last week.
I checked some wait events but found pmon timer and smon timer at the top all the time. but not getting any clue of reason behind it.
If anyone has faced such issue then please advice as what could be reason of it.
SELECT a.SID, a.event, a.wait_time, a.seconds_in_wait, a.state
FROM v$session_wait a, v$session b
WHERE a.SID = b.SID AND event <> 'SQL*Net message from client'
ORDER BY seconds_in_wait DESC
SID     EVENT     WAIT_TIME     SECONDS_IN_WAIT     STATE
1     pmon timer     0     4090     WAITING
8     smon timer     0     1209     WAITING
9     rdbms ipc message     0     799     WAITING
regards
vinay

To add some more information to this
The disk activity before doing schema changes used to be somewhere around 30-45% but now it has suddenly went to 70-80%.
The schema changes includes addition of some complex views, tables and indexes.
but i haven't seen any considarable chnages in size of newly added objects they are all together less than 1.5 gb and our total database size is 700GB.
i took snapshot for over period of time i found top event as direct path write
Top 5 Wait Events
~~~~~~~~~~~~~~~~~ Wait % Total
Event Waits Time (cs) Wt Time
direct path write 1,444,566 495,020 38.06
direct path read 677,912 139,936 10.76
PX Deq: Execution Msg 1,252 129,432 9.95
db file scattered read 1,235,215 117,431 9.03
db file sequential read 912,288 98,714 7.59
Top 5 Wait Events
~~~~~~~~~~~~~~~~~ Wait % Total
Event Waits Time (cs) Wt Time
direct path write 3,923,608 1,218,268 33.98
db file scattered read 1,770,687 533,507 14.88
direct path read 3,676,295 468,525 13.07
db file sequential read 1,911,892 331,635 9.25
SQL*Net more data to client 7,126,163 188,606 5.26
there is considerable slow response has been reported on application but but still usable.
Regards
Vinay

Low number users, high disk IO, 11g 106 Win32

I can see for a high number of users in a critical high availability environment,
all the things Oracle does for maintenance, monitoring, etc. is vital.
But for an intranet office with 5 users and less than 4 gigs of data, using the database in the daytime only, and a couple backup jobs running at night, is there a way to reduce the frequency of oracle disk IO events for monitoring, etc. The hard drives are just running themselves to death.
Oracle CPU use is low after fixing a known problem with Windows 11g 106 and one maintenance job problem noted on this forum previously related to sysman.mgmt_job where job_name = 'PROVISIONING DAEMON'.
It is possible part of the high disk IO is Windows 2008 adding many behind the scenes monitoring tasks compared to Windows 2003.
Any ideas to reduce disk thrashing in low user environment would be welcome.
Thanks

Process Explorer utility points to various oracle
processes,
oracle.exe, emagent, nmupm, etc.Take a look at the Windows event log and the listener.log file. Do you see repeating patterns such as the following, with an extremely short delay between each event?
From the Windows Event Viewer - Application Log:
Error Faulting application nmefwmi.exe, version 0.0.0.0, time stamp 0x46e8bfeb, faulting module RPCRT4.dll, version 6.0.6000.16525, time stamp 0x469c344c, exception code 0xc0000005, fault offset 0x00078edf, process id 0x139c, application start time 0x01c858a1d991a940.
Error Faulting application nmefwmi.exe, version 0.0.0.0, time stamp 0x46e8bfeb, faulting module RPCRT4.dll, version 6.0.6000.16525, time stamp 0x469c344c, exception code 0xc0000005, fault offset 0x00079b50, process id 0x44c, application start time 0x01c863adc2f27220.
Error Faulting application nmefwmi.exe, version 0.0.0.0, time stamp 0x46e8bfeb, faulting module RPCRT4.dll, version 6.0.6000.16525, time stamp 0x469c344c, exception code 0xc0000005, fault offset 0x00079b50, process id 0x1324, application start time 0x01c863adec6a2350.
From the Listener.log:
08-AUG-2008 19:31:50 * service_update * MYDB * 0
08-AUG-2008 19:32:02 * service_update * MYDB * 0
08-AUG-2008 19:32:05 * service_update * MYDB * 0
08-AUG-2008 19:32:08 * service_update * MYDB * 0
08-AUG-2008 19:32:11 * service_update * MYDB * 0
08-AUG-2008 19:32:15 * service_update * MYDB * 0
08-AUG-2008 19:32:36 * (CONNECT_DATA=(SID=MYDB)(CID=(PROGRAM=D:\Oracle\Product\product\11.1.0\db_1\bin\emagent.exe)(HOST=MYSERVER)(USER=SYSTEM))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50027)) * establish * MYDB * 0
08-AUG-2008 19:32:36 * (CONNECT_DATA=(SID=MYDB)(CID=(PROGRAM=D:\Oracle\Product\product\11.1.0\db_1\bin\emagent.exe)(HOST=MYSERVER)(USER=SYSTEM))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50028)) * establish * MYDB * 0
08-AUG-2008 19:32:56 * (CONNECT_DATA=(SID=MYDB)(CID=(PROGRAM=D:\Oracle\Product\product\11.1.0\db_1\bin\emagent.exe)(HOST=MYSERVER)(USER=SYSTEM))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50030)) * establish * MYDB * 0
08-AUG-2008 19:32:56 * (CONNECT_DATA=(SID=MYDB)(CID=(PROGRAM=D:\Oracle\Product\product\11.1.0\db_1\bin\emagent.exe)(HOST=MYSERVER)(USER=SYSTEM))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50029)) * establish * MYDB * 0
08-AUG-2008 19:32:56 * service_update * MYDB * 0
08-AUG-2008 19:33:00 * service_update * MYDB * 0
08-AUG-2008 19:33:03 * service_update * MYDB * 0
08-AUG-2008 19:33:06 * service_update * MYDB * 0
08-AUG-2008 19:33:09 * service_update * MYDB * 0
08-AUG-2008 19:33:12 * service_update * MYDB * 0
08-AUG-2008 19:33:15 * service_update * MYDB * 0
08-AUG-2008 19:33:42 * service_update * MYDB * 0
08-AUG-2008 19:33:51 * service_update * MYDB * 0
08-AUG-2008 19:33:54 * service_update * MYDB * 0
08-AUG-2008 19:33:57 * ping * 0
08-AUG-2008 19:33:58 * (CONNECT_DATA=(SID=MYDB)(CID=(PROGRAM=D:\Oracle\Product\product\11.1.0\db_1\perl\5.8.3\bin\MSWin32-x86-multi-thread\perl.exe)(HOST=MYSERVER)(USER=SYSTEM))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50034)) * establish * MYDB * 0
08-AUG-2008 19:33:58 * (CONNECT_DATA=(SID=MYDB)(CID=(PROGRAM=D:\Oracle\Product\product\11.1.0\db_1\perl\5.8.3\bin\MSWin32-x86-multi-thread\perl.exe)(HOST=MYSERVER)(USER=SYSTEM))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50035)) * establish * MYDB * 0
08-AUG-2008 19:33:58 * (CONNECT_DATA=(SID=MYDB)(CID=(PROGRAM=D:\Oracle\Product\product\11.1.0\db_1\perl\5.8.3\bin\MSWin32-x86-multi-thread\perl.exe)(HOST=MYSERVER)(USER=SYSTEM))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50036)) * establish * MYDB * 0
08-AUG-2008 19:33:58 * (CONNECT_DATA=(SID=MYDB)(CID=(PROGRAM=D:\Oracle\Product\product\11.1.0\db_1\perl\5.8.3\bin\MSWin32-x86-multi-thread\perl.exe)(HOST=MYSERVER)(USER=SYSTEM))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50038)) * establish * MYDB * 0
08-AUG-2008 19:33:59 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=)(USER=SYSTEM))(COMMAND=status)(ARGUMENTS=64)(SERVICE=(ADDRESS=(PROTOCOL=TCP)(HOST=bin)(PORT=1521)))(VERSION=185599488)) * status * 0
08-AUG-2008 19:34:00 * (CONNECT_DATA=(SID=MYDB)(CID=(PROGRAM=D:\Oracle\Product\product\11.1.0\db_1\perl\5.8.3\bin\MSWin32-x86-multi-thread\perl.exe)(HOST=MYSERVER)(USER=SYSTEM))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50041)) * establish * MYDB * 0
08-AUG-2008 19:34:01 * (CONNECT_DATA=(SID=MYDB)(CID=(PROGRAM=D:\Oracle\Product\product\11.1.0\db_1\perl\5.8.3\bin\MSWin32-x86-multi-thread\perl.exe)(HOST=MYSERVER)(USER=SYSTEM))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50042)) * establish * MYDB * 0
08-AUG-2008 19:34:09 * service_update * MYDB * 0
08-AUG-2008 19:34:12 * service_update * MYDB * 0
08-AUG-2008 19:34:18 * service_update * MYDB * 0
08-AUG-2008 19:34:21 * service_update * MYDB * 0
08-AUG-2008 19:34:27 * service_update * MYDB * 0
08-AUG-2008 19:34:42 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))(SERVICE_NAME=MYDB)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50049)) * establish * MYDB * 0
08-AUG-2008 19:34:45 * service_update * MYDB * 0
08-AUG-2008 19:34:56 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))(SERVICE_NAME=MYDB)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50052)) * establish * MYDB * 0
08-AUG-2008 19:34:56 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))(SERVICE_NAME=MYDB)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50053)) * establish * MYDB * 0
08-AUG-2008 19:34:56 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))(SERVICE_NAME=MYDB)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50054)) * establish * MYDB * 0
08-AUG-2008 19:34:57 * service_update * MYDB * 0
08-AUG-2008 19:34:57 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))(SERVICE_NAME=MYDB)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50055)) * establish * MYDB * 0
08-AUG-2008 19:34:57 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))(SERVICE_NAME=MYDB)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50056)) * establish * MYDB * 0
08-AUG-2008 19:34:58 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))(SERVICE_NAME=MYDB)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50057)) * establish * MYDB * 0
08-AUG-2008 19:35:00 * service_update * MYDB * 0
08-AUG-2008 19:35:00 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))(SERVICE_NAME=MYDB)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50059)) * establish * MYDB * 0
08-AUG-2008 19:35:03 * service_update * MYDB * 0
08-AUG-2008 19:35:15 * service_update * MYDB * 0
08-AUG-2008 19:36:54 * service_update * MYDB * 0
08-AUG-2008 19:36:55 * ping * 0
08-AUG-2008 19:36:55 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=)(USER=SYSTEM))(COMMAND=status)(ARGUMENTS=64)(SERVICE=(ADDRESS=(PROTOCOL=TCP)(HOST=bin)(PORT=1521)))(VERSION=185599488)) * status * 0
08-AUG-2008 19:37:02 * (CONNECT_DATA=(SID=MYDB)(CID=(PROGRAM=D:\Oracle\Product\product\11.1.0\db_1\perl\5.8.3\bin\MSWin32-x86-multi-thread\perl.exe)(HOST=MYSERVER)(USER=SYSTEM))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.185.10.51)(PORT=50080)) * establish * MYDB * 0
08-AUG-2008 19:37:15 * service_update * MYDB * 0
08-AUG-2008 19:38:30 * service_update * MYDB * 0
...If you do see patterns like the above, temporarily stop the OracleDBConsole service for the database instance to see if the disk activity slows considerably.
Charles Hooper
IT Manager/Oracle DBA
K&M Machine-Fabricating, Inc.

Slowed speed, freezes, high disk usage

After I have been on the computer for about 10-15 minutes, it starts to freeze and slow down. I get a high disk usage message from Norton saying that Windows Explorer Exe. is causing this. I also keep getting the same 5 updates even after I have installed them. I have a Compaq Presario SR5602FH Desktop PC Using windows home basic. Also the Hp updater does not open anymore.

Norton is pretty good but you still could have viruses. I don't think you do and I believe it is your hard drive going bad. I would try to run check disk and if your laptop has the utility partition, test your memory and hard drive.
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2nd iPod in a row saying "Disk cannot be read from or written to." Help!

My setup is as following:
MacBook Pro 2.16 Ghz Intel Core Duo
Mac OS X 10.5.2
Lacie 250GB External Hard Drive attached via Firewire
iPod Classic 160GB Black
iTunes 7.6.2 - Library has about 16,000 songs
Using the above setup, my 5th Generation iPod, my iPhone, and my iPod Nano all work just fine. My newly purchased iPod Classic however, refuses to work. Here is the story so far...
I have all of my music on my external hard drive. On the external, there is a folder entitled "iTunes." Inside of that, there are 2 folders. One entitled "Album Artwork" and on entitled "iTunes Music." The music folder contains all of the actual AAC and Mp3 files that makeup my iTunes Library. The actual library data itself, the files entitled "iTunes Library" and "iTunes Library.xml" are on my computer HD, in User>Music>iTunes. Now, I dont know why the library file is on the computer when all the music is on the external, but maybe thats just the way that works.
Anyway, I plugged in the new iPod Classic, it started to sync, and about 15 minutes in, I got a pop up box that said "iPod Sync failed. Disk cannot be read from or written to." So I did a few things to try to make it work. I reinstalled iTunes, I restored the iPod a few times. I set it to only sync music and not TV shows or Movies or Podcasts or Photos. I tried to sync it again. Nothing worked. So, thinking I had a bad iPod, I brought it to the store and swapped it out for a new one. Not a "new" one, but one from the back, so it was refurbished. I tried that. It still didn't work. So I called Apple tech support.
Tech support had me set my iPod for Manual use, and then alphabetically import songs by artists. In other words, bring over all the "A" artists, followed by the "B" artists and so on...So I did that, I got to importing a few songs by Cyndi Lauper, and it got to one song, called "Shine" and the error message came up. So I figured, there it was, the corrupted file. So I deleted it from my computer, and proceeded to go on importing manually, just in case. Well I continued for a while, and at the end of the day, there were about 100 songs that would not copy over. These were songs that worked just fine when you played them through iTunes, and worked just fine on all my other iPods.
So I manually transferred over all the songs that worked, which was about a 100 less than my full library. Along the way, instead of deleting the corrupted songs, I unchecked them. After I did the full manual transfer, I set up the iPod to an automatic sync, only syncing over songs that are checked, thinking the unchecked ones, the corrupted ones, would not even try to be transferred over and it work fine.
I was wrong. With the sync, this time it stopped on a song that was not corrupted the first time around. Not knowing what to do, I ejected my iPod, and it wouldn't eject. It said "iPod appears to be corrupt, please click restore." So I did that, thinking this would finally fix it, since the computer realized the iPod was messed up. I was wrong again. It didn't do anything, it just made it so I could eject my iPod.
So I'm now on my 2nd iPod classic. I've done what Tech Support has told me to do. Now I need help. Badly.

I had similar problems, it was a nightmare and on a 3 month ipod too!. I use a Powerbook G4 at home and a G5 at work - both were returning the same problems. so I sent it off to apple, they quickly sent it back saying there was nothing wrong with and it didn't need to be repaired. I tried it again and the same problems occurred "disc cannot be written to or read from." I could copy 20 songs onto it at the very most. A couple of guys at my work suggested updating it on a PC, then adding tunes via my mac as normal - guess what!? it works a treat!?. How ridiculous is that!? an Apple product works best on a PC. these generations of ipods are obviously designed to work best on Intel based Macs. What is wrong Apple? are you abandoning the G-generation!? still, atleast my ipod works for now - it will prove a problem when I have to update the iPod's software since I don't own a PC or an intel-based Mac.

ITunes Library File Cannot be Saved. The Disk Cannot be Read From . . .

I use a MacBook Pro with a healthy battery. My iTunes songs are on a USB drive. The Database and XML files are on my MacBook. Power went out in my house and the USB drive shut off. The MacBook stayed up and running. Power came back, powered on the USB drive, open iTunes, and bang: This sorry error: iTunes Library File Cannot be Saved. The Disk Cannot be Read From or Written to.
The disks are healthy, did an fsck and ran disk verify/repair. No problems. Restart iTunes, same error. Obviously a corrupted Databse file. This wouldn't be a big deal if only the XML info would be useful and actually restore critical info such as play count and dates which is essential for the Not-So-Smart Playlist dependencies to work.
This is the third time I've been burned with corrupted iTunes "Database" files. I use "Database" in quotes because a true Database wouldn't crap out like this. It would be recoverable. It would understand a simple SQL "Where" statement. It would have a maintenance script and some means for recoverable backup beyond the lame process of copying the XML file. Or it would at least read in the info the XML file.
I am becoming disillusioned with iTunes and I'm beginning to yearn for my old Linux box running GTKPod which never failed me....

OK, here's an update - After doing the restore as mentioned having everything seemingly work, I erroniously downloaded the iTunes 7.4 & 7.4.1 updates. Now, about 80% of library is non-responsive, ie: shows up in iTunes, but clicking to play does nothing at all. the other 20% of my library plays, but it's not the song it is supposed to be playing. For example, clicking on a song from say, ABBA prodes a wonderful Gorillaz track :-/ (The same Gorillaz track which will not play if I select it...)
I reiterate: WE NEED A MEANS TO BACKUP OUR LIBRARIES RELIABLY!!!!!!!!!!

IPod partially syncs & I get "Disk cannot be read from or written to"mssg.

Here's my initial problem:I think I Blew It. Tried to move iTunes from OS (C:) to DATA (D:). First I now realize that I should have come here first. But I didn't. I basically copied all of my iTune files into DATA (D:) and deleted them from OS (C:). Now when I open iTunes nothing is there. I left a couple of folders that wouldn't transfer from (C:) to (D:). One is a temp file 2, another is iTunes Music Library XML. doc. My iTunes music folder is empty and my iTunes library folder is pretty much empty too. The folders in DATA (D:) still have my 30 GB of music. So I wonder if I can undo this fiasco?
Here's where I am at today:Well I somehow got my library back. But I think I now have a couple copies of it on different drives. I configured the iTunes settings to feed off D drive but my problem now is I can't sync my ipod completely. I get the infamous "Disk cannot be read from or written to" when syncing iPod" message. I've tried restoring the ipod, creating a sync folder,checking and getting windows updates, and enabling the disc. I'm totally lost here.Please help all wise ones....

Let me add the advice Polydorus gave me to get back library: http://discussions.apple.com/thread.jspa?threadID=1327455&tstart=0 You haven't give enough information to tell exactly what the problem is.
Did you copy the iTunes folder to the d: drive, this folder contains the library databases and the iTunes Music folder.
If you did that, you can try starting iTunes with the shift key held down, when asked to choose a library, navigate to the iTunes folder on the external drive and choose iTunes Library.itl.
This only works if you copied the iTunes folder and you had a default arrangement with all your music files in the iTunes Muisc folder in the iTunes folder.
If you didn't do that and you don't mind losing your counts, ratings and playlists you can do the following:
I am going to assume that you still have your iTunes folder on the c:drive. Close iTunes and drag iTunes Library.itl and iTunes Music library.xml out of the iTunes folder to the desktop.
Then open iTunes and an empty library is created, first go to Editit>>Preferences>>Advance>>Gneral and check that the location of the iTunes Music folder is correctly set, then add the iTunes Music folder to iTunes with File>>Add folder to library. If you have music in other folders, you add those too.
Note that these two possibilities do not cover all eventualities, you will need to explain exactly what you did for further advice. POST NOTE: I basically drug the libray to the desktop and opened iTunes with the shift key held down, when asked to choose a library, I did and it came back.

Check process generating high disk I/O read

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