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.

Similar Messages

High level user and Low level user

Hi to all gurus,
How SAP diffrentiates between high level user and low level users?? I mean if the licences are for 25 high level user and 50 lowevel users, than how SAP will categorize the high level and low level user licenses?? Is there anyway where BASIS person has to specify??
Thanks and Regards,

Ask your SAP Account Manager, he will be happy to explain it for you.
Regards
Juan

Live A/V Broadcast How to support both High & Low bandwidth users ?

Hello there
I have been working on a requirement where I need to
broadcast live audio and video feeds
to Flash Media Server from where it gets broadcasted to our
customers. We have two types of
customers: High bandwidth and Low bandwidth.
Now could anyone please tell me what kind of scripting is
required at the server end so that
the Media server broadcasts to these two level of user groups
at same time. How do we control
the live feeds received at the Media server ? How do I
control the amount of bandwidth that at server
side based on the received feed so that I can broadcast to my
users based on their capacity ?
I tried running two separate flash application pulling the
feeds from SAME camera but that didn't
work as changing the settings (like Camera.setMode..) on one
program affects the settings on other
program(as both programs are connected to same camera/mic). I
do not want to buy two separate
cameras/mic to support both high/low bandwidth users. I would
need to do it programatically.
Could anyone please let me know your thoughts, it would be
very helpful to me and others.
Many thanks,
-Sakthik

Thanks Charles for your reply. I didn't know that FMS doesn't
support this feature. So you mean to say that there aren't any
other ways to control live feeds at server side ?
I would try your suggestion on setting the bandwidth and FPS
at client side but I am not sure how effective will it be because
the Server is going to push a high bandwidh data to a 56 Kbps
pipeline. There will be lot of data loss due to this narrow
pipeline. Do you think that applying setBandwidth and setFPS on
this narrowed data is going to be effective ? I dont think so, what
do you say ?
How exactly does this setBandwidth and setFPS works ? When
will it modify the data ? Will it modify the data after or before
receiving it at the client end ?
Please share your thoughts on this.
Many thanks,
-Sakthik

Your experience wanted: SE30: low number of calls, high nettime

Hi,
this question is to find out more examples based on your experience:
During performance analysis with SE30 i came across the following in 2 cases:
All options on the statements tab where set (internal tables, ...).
The Hitlist showed a significant time consumer FM with
- a low number of executions (e.g. 1)
- a high gross time (e.g. 5.5 seconds)
- a high net time (e.g. 5.4 seconds)
A closer look (debugger, sourcecode) revealed this was due to:
- implicit sort of a big internal table (sorted_table = unsorted_stanard_table)
or in the second case:
- call transformation (itab to xml with some ST programm)
I would like to know if you are aware of more such examples of significant time consumers
not showing up in the SE30 hitlist.
Kind regards,
Hermann

Hi Anette,
thanks for that hint. Indeed i haven't done that. However, neither the implicit sort, nor the call transformation shows up their times are included in Net of F2 and F1. This is how SE30 Hitlist looks looks like without any filters: (top lines only...)
No.      Gross =        Net Gross (%) Net (%) Call                                              Program Name     Type Display filter group
1 1.257.991    1.257.526      94,8    94,7 Perform F2                                        Z_GAHM_ITAB_TEST
1    34.060 =    34.060       2,6     2,6 DB-Op. Fetch T100 #                               Z_GAHM_ITAB_TEST DB               DB
1    21.190 =    21.190       1,6     1,6 DB-Op. Open T100 #                                Z_GAHM_ITAB_TEST DB               DB
1     9.281        9.192       0,7     0,7 Perform F1                                        Z_GAHM_ITAB_TEST
1 1.327.538        2.402     100,0     0,2 Submit Report Z_GAHM_ITAB_TEST                    SAPMS38T
1 1.324.396          332      99,8     0,0 Program Z_GAHM_ITAB_TEST
7       320 =       320       0,0     0,0 Storage Get Bytes= 100000                         Z_GAHM_ITAB_TEST                           M
3       136 =       136       0,0     0,0 Storage Free                                      Z_GAHM_ITAB_TEST                           M
1 1.322.927           85      99,7     0,0 Dynpro Entry                                      SAPMSSY0              S
4       772           63       0,1     0,0 PBO Dynpro SAPMSSY0                               SAPMSSY0         Sys. S
1        50 =        50       0,0     0,0 Load CUA Objects SAPMSSY0 1000                    SAPMSSY0         Sys. S                 Dy
1        50 =        50       0,0     0,0 Storage Get Bytes= 100000                         Z_GAHM_ITAB_TEST                           M
1        82           49       0,0     0,0 Perform INIT_1_PROG                               RSDBRUNT              S
This is the QnD (quick and dirty) test program:
REPORT Z_GAHM_ITAB_TEST.
data it like STANDARD TABLE OF t100.
select * from t100 into table it up to 10000 rows.
perform f1.
perform f2.
form f1.
    data it2 like Sorted TABLE OF t100 with non-unique key msgnr.
    it2 = it.
    endform.
      form f2.
data: s type string.
call TRANSFORMATION id
SOURCE root = it
RESULT XML s.
    endform.
So either I'm doing something wrong or these times are just not measured and displayed. If these are noe measured / shown, I wonder if there are more such examples... .
Kind regards,
Hermann
QnD programm corrected (RESULT XML s instead of RESULT XML = s)
Edited by: Hermann Gahm on Apr 3, 2009 11:42 AM

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

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.

App-V 5.0 SP2 RDS Client with hotfix 2 breaks frequently on Windows 2012R2 with User Profile Disks enabled

Hi All,
I am at my wit's end trying to troubleshoot this, so any help would be greatly appreciated.
We are having serious stability issues with App-V 5.0 SP2 RDS in our environment with User Profile Disks enabled.
We have applied the latest hotfix but the issues persist.
The main problems are:
1. Periodically the client seems to become corrupted and all applications stop working for all users. All applications including the official Microsoft Office 2013 ones - not just our packages.
The symptoms are the same as if I change the App-V Client Service account to run under a user account instead of SYSTEM, so it suggests a file access issue. The log files also hint at this, and one of there errors is similar to this:
The virtual application 'C:\Users\rds.user9\AppData\Local\Microsoft\AppV\Client\Integration\A3EF9C01-C0E9-4AC5-B21F-DB9B1D2F700C\Root\Mindjet\MindManager 14\MindManager.exe' could not be started because the
App-V Subsystem 'Virtual Filesystem' could not be initialized. {error: 0x6740090A-0x20003}
Once this problem occurs the only way I have found to fix it is to either completely remove and reinstall the client, or (perhaps this is the big clue) rename the registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AppV\MAV\Configuration\Volumes , unpublish
an application, then republish said application.
I don't even think it matters which application gets published. The point seems to be that this 'Volumes' key gets rewritten.
I am highly suspicious that our issues are caused by User Profile disks in our RDS environment, as when I disable them on our staging collection all of these issues seem to disappear.
I have made sure all of the servers have permissions on the share (folder and share permissions). It doesn't seem to make a difference.
2. Some application fail completely with User Profile Disks enabled. If we switch the setting from "Store all settings and data on the user profile disk" to "Store Only the following folders" there seems to be some improvement,
in that at least one application that fails on the other setting starts to work.
3. We have already set that NTFS 8 dot 3 reg fix some time ago.
SOS!
We have gone live this week (not my call) and this is having disasterous consequences. :(
Thanks in advance,
John

Hi,
Thanks for your response.
I did try this a while ago without success, although it may be worth revisiting with SP2 applied.
I have left this client now.
I left them a Powershell script that deletes HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AppV\MAV\Configuration\Volumes
and triggers an Unpublish/Publish of an application we have deployed to all of the servers.
This seems to work, but a fix would be better than a workaround.
Not really my problem now though - I did my best.
Thanks,
John

[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!

KDE 4.7: very slow and high disk usage

Since upgrade to KDE 4.7 on my i686 laptop, my system behaves weirdly. I noticed a slow down caused by a very high disk usage: when the HDD spins the cpu usage reported by the CPU monitor plasmoid is very high (~ 50%), while top reports a very small CPU load. Another strange symptom is that, when I try to close the session, the system freezes for about 15 seconds before the logout/shutdown/restart dialog window appears, again with HDD spinning furiously. If I exit the dialog window and then try to close session again it works smoothly, so I think some caching is at work at second try.
This is very painful since it slows down my workflow. Since now I tried to:
- disable nepomuk, strigi and all that using the nepomukcontroller plasmoid
- disable compositing
- delete .kde folder
- uninstall and reinstall all kde packages
without any benefit. On the same laptop I have dual boot with a 64 bit arch installation, which does not have the same problem, nor has it my 64 bit desktop pc.
Does anyone have similar issues? I don't understand what is it that makes the HDD spin so much, nor how to eventually track it down (are there som HDD usage profiling utilities?). Moreover, why top and CPU usage plasmoid report so different CPU usage stats?
I'm very confused, so any help will be greatly appreciated.

Although I'm not having any of the issues as Snack, I have found KDE 4.7.0 to be a very horrible release. In fact, I'm sick and tired of the KDE release notes bragging about killing thousands of bugs each release, when in actuality the first few revisions of each stable release are horrible. When I first upgraded, I ran into at least four really nasty bugs. Although I've worked around some of them, it left a really sour taste in my mouth. Here is what I've experienced:
1.) With a new user or fresh install, there is no wallpaper by default, even if I install kde-wallpapers before I log in, it makes no difference.
2.) Sometimes kwin will crash during log out.
3.) Worse yet, if I exit a full screen game, it will more than likely crash Kwin. This is a problem on my laptop (which has intel video) and not my desktop (which has nvidia video). If I don't remember to disable desktop effects before opening a game, I may run into a problem.
4.) Although my performance is good, it's not great. I would think a laptop with a Core i5 processor and 8GB of RAM would run faster than it is.
I have tested XFCE for a bit, and I do like it alot. However, with XFCE I am unable to browse Samba shares, and that is a huge problem. In addition, I find KDE's applications to be much better than what ships with XFCE, but I question whether they're worth the performance hit. I really love Kate, Gwenview, Digikam, and Amarok. I know you can install those in XFCE, but they feel out of place and then my desktop pretty much becomes a mutt. Not only that, but KDE is full featured, whereas XFCE is not. It's like I have to choose between a stable desktop or a desktop with full of bugs.
I hope that KDE 4.7.1 fixes everything, but historically it's usually the 4.x.2 release that really does the trick.

How to pass the low value and high values for select options.

Hi,
       In selection screen I want to display the first date, last date of this month as a default value in low and high fields. Please exaplain me how.
Thanks and Regards,
Surya

hI,
     Very thanks ,
        I did it what u said now. but those contents does not displaying on the screen.
In this order I write the code. Please explain me
SELECT-OPTIONS s_date FOR likp-wadat_ist.
DATA BEGIN TYPE wadat_ist.
DATA LAST TYPE wadat_ist.
initialization.
s_date-low = BEGIN.
s_date-high = LAST.
at selection-screen output.
CALL FUNCTION 'HRWPC_BL_DATES_MONTH_INTERVAL'
EXPORTING
    datum                = SY-DATUM
    month_pst            = '0'
    month_ftr            =   '0'
IMPORTING
   BEGDA                = BEGIN
   ENDDA                =   LAST
EXCEPTIONS
INVALID_VALUES       = 1
OTHERS               = 2
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.

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

How to change the low quality to high quality in iPhone 5c?

Hi everyone, I need help about this uploading a video on Facebook. Here's the story, I uploaded a video last friday (april25,2014) and I have to choose what quality the video should be, and I chose the low quality (for low space *new on iphone*) but, i think I was wrong on choosing the low quality over high quality. I watched the video from my Camera Roll and it's on high quality, but on facebook it was a low quality video. Now, does anyone could help me to change it to high quality from low quality? Sorry for this stupidity question..

hI,
     Very thanks ,
        I did it what u said now. but those contents does not displaying on the screen.
In this order I write the code. Please explain me
SELECT-OPTIONS s_date FOR likp-wadat_ist.
DATA BEGIN TYPE wadat_ist.
DATA LAST TYPE wadat_ist.
initialization.
s_date-low = BEGIN.
s_date-high = LAST.
at selection-screen output.
CALL FUNCTION 'HRWPC_BL_DATES_MONTH_INTERVAL'
EXPORTING
    datum                = SY-DATUM
    month_pst            = '0'
    month_ftr            =   '0'
IMPORTING
   BEGDA                = BEGIN
   ENDDA                =   LAST
EXCEPTIONS
INVALID_VALUES       = 1
OTHERS               = 2
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.

Minimum number of voting disks?

Hi,
Is there is a minimum number of voting disks?
does that depend on the RAC nodes?
If I have 4 nodes what is the optimal voting disks?
Thanks

user9202785 wrote:
Hi,
Is there is a minimum number of voting disks?
does that depend on the RAC nodes?
If I have 4 nodes what is the optimal voting disks?
ThanksOracle recommends 3 voting disk. but you can install clusterware with one voting disk by selecting external redudancy during clusterware installation.
the number of voting disks is not depend on the number of RAC nodes. you can have upto maximum 32 voting disks for 2nodes to 100 RAC nodes.
The Oracle Clusterware is comprised primarily of two components: the voting disk and the OCR (Oracle Cluster Registry). The voting disk is nothing but a file that contains and manages information of all the node memberships and the OCR is a file that manages the cluster and RAC configuration.
refer : how to add/remove/repace voting disk in the below link:
http://oracleinstance.blogspot.com/2009/12/how-to-addremovereplacemove-oracle.html.
if voting disk fails: refer
http://oracleinstance.blogspot.com/2009/12/how-to-addremovereplacemove-oracle.html.
also refer Oracle® Database 2 Day + Real Application Clusters Guide 10g Release 2 (10.2)
read the below ,hope this will help you.
1) Why do we have to create odd number of voting disk?
As far as voting disks are concerned, a node must be able to access strictly more than half of the voting disks at any time. So if you want to be able to tolerate a failure of n voting disks, you must have at least 2n+1 configured. (n=1 means 3 voting disks). You can configure up to 32 voting disks, providing protection against 15 simultaneous disk failures.
Oracle recommends that customers use 3 or more voting disks in Oracle RAC 10g Release 2. Note: For best availability, the 3 voting files should be physically separate disks. It is recommended to use an odd number as 4 disks will not be any more highly available than 3 disks, 1/2 of 3 is 1.5...rounded to 2, 1/2 of 4 is 2, once we lose 2 disks, our cluster will fail with both 4 voting disks or 3 voting disks.
2) Does the cluster actually check for the vote count before node eviction? If yes, could you expain this process briefly?
Yes. If you lose half or more of all of your voting disks, then nodes get evicted from the cluster, or nodes kick themselves out of the cluster.
3) What's the logic behind the documentaion note that says that "each node should be able to see more than half of the voting disks at any time"?
The answer to first question itself will provide answer to this question too.answered by: Boochi
refer: Question on voting disk
Question on voting disk

Windows Server 2012 R2 RDS + User profile Disks + App-V = Explorer.exe crashing all of the time

I have built a new RDS farm on Windows Server 2012 R2 with two Session Hosts and a combined Connect Broker/Web Access server. I had the farm up and running with User Profile Disks and all seemed OK. However, as soon as I installed the App-V 5.0 SP2 RDS
client on the session hosts, the explorer.exe process started crashing for any user logging in via the Web Access site. The process crashes and restarts every five to ten seconds. It's the same for administrators. If they log in via Web Access explorer.exe
crashes, but if they RDP directly to one of the session hosts explorer.exe is fine. If I reboot the session hosts, then the first user to log in via Web Access has a stable desktop session (and appears to have a new profile as well). However, if that user
logs out and back in again, explorer.exe starts crashing again. The only applications I have packaged at the moment are Office 2013 and Firefox.
I tried disabling User Profile Disks, but this caused a whole bunch of other problems and I eventually lost the ability to log in at all via Web Access (errors about the user profile service). As this is a small pre-production environment I completed scrapped
all of the servers and rebuilt from scratch. Again, everything appeared fine until I installed the App-V client, then explorer.exe started crashing repeatedly for all users.
Has anyone come across this issue before? I have tried installing the App-V 5.0 SP2 Hotfix Package 2, but this didn't help. I have read in a few forums that App-V doesn't work very well with User Profile Desks, but I have not heard of this particular issue.
Similarly, SP2 seems to have a lot of problems, so I am going to try removing App-V RDp Client SP2 and installing SP1. I ahev also deleted User Profile Disks for the test users to recreate their profiles, but this didn't help either.
Any other suggestions welcome!

I forgot to include the application event log entry for explorer.exe crashing:
Faulting application name: explorer.exe, version: 6.3.9600.17039, time stamp: 0x53156588
Faulting module name: KERNELBASE.dll, version: 6.3.9600.17055, time stamp: 0x532954fb
Exception code: 0xc06d007e
Fault offset: 0x0000000000005bf8
Faulting process id: 0xae8
Faulting application start time: 0x01cfab3a273787fd
Faulting application path: C:\Windows\explorer.exe
Faulting module path: C:\Windows\system32\KERNELBASE.dll
Report Id: 69210d77-172d-11e4-80c6-0050560102d1
Faulting package full name:

High disk usage/high memory usage.

i keep getting high memory usage and high disk usage in ps cs6.
its slow when i open a file. how can i solve this problem.
thank you.
philip.

Not to put too fine a point on it, but more than what? More RAM is almost always better, but you haven't answered most of the questions posed here. The answer might be different if you have 2 GB of RAM or 32 GB of RAM already. A 9 megapixel document could get rather large with a lot of layers, but again you've neglected to give any hard info about its size.
Regarding your video card, that's a bit of a judgment call you need to make. For Photoshop CS6 I currently advise people to try to get a video card that gets a score of 1000 or better on this benchmark: http://www.videocardbenchmark.net/high_end_gpus.html
Video card speed will matter when you're editing those 3D components and video card VRAM will also matter, but possibly even more importantly your GeForce 320 is a bit old, and nVidia may just not be doing their best driver work for it any more.
Everything in general will run more smoothly with a powerful modern video card. I like to recommend a VisionTek ATI Radeon HD 7750 - or if the computer power supply and your budget allow, the even more powerful 7850. VisionTek does a very good job with their hardware, IMO, and it comes with a lifetime guarantee.
Keep in mind that if you switch from nVidia to ATI or vice versa, you should carefully sweep your system to ensure all files from the old card are removed, then visit the web site of the new card's maker and download/install their latest display driver release.
Best of luck.
-Noel

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

Similar Messages

Maybe you are looking for