RAID 5 degrades after restart

Since I configured our Xserve (3x500 GB + Hardware Raid Card) it ran perfectly stable and without any problems.
The only problem is each time I install new software and restart the RAID 5 is degraded and one of three 500 GB modules has to be rebuilt which takes a long time and decreases performance. Is this normal behaviour or might this be a hardware failure?
I'm not really sure what to do next. Suggestions welcome!
Xserve G5 2.3 DP Mac OS X (10.4.7) Hardware RAID Level 5

rgb-digital:
I am pretty sure that will do it.
The problem with non-authorized drives in the ADM's is that they are not supported by Apple. That doesn't only mean that they won't support you from a technical standpoint if you have issues, but the other software and hardware as designed will not "support" the drives.
I am not sure technically why it is working the way it is for you, but if you cannot eliminate one particular drive, sled, or slot in the XServe then I would say that this is definitely the problem.
Luck-
-DaddyPaycheck

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[Solved] RAID 5 degraded after 3.13 upgrade

Hi there,
after upgrading my home server to the latest kernel 3.13 I've found out, that my RAID 5 got degraded. One of the drives has been kicked out, but I don't know why. The drive seems okay, I've also done a SMART short test, completed without any errors. The only suspicious looking error message, when upgrading to Linux 3.13 was:
ERROR: Module 'hci_vhci' has devname (vhci) but lacks major and minor information. Ignoring.
This is mdstat output:
[tolga@Ragnarok ~]$ cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4]
md127 : active raid5 sda1[0] sdc1[3] sdb1[1]
5860145664 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/3] [UUU_]
unused devices: <none>
smartctl:
[tolga@Ragnarok ~]$ sudo smartctl -a /dev/sdd
smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.13.4-1-ARCH] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Western Digital Red (AF)
Device Model: WDC WD20EFRX-68AX9N0
Serial Number: [removed]
LU WWN Device Id: 5 0014ee 2b2cd537a
Firmware Version: 80.00A80
User Capacity: 2,000,398,934,016 bytes [2.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: ACS-2 (minor revision not indicated)
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Fri Feb 21 22:26:30 2014 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (26580) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 268) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x70bd) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 164 163 021 Pre-fail Always - 6766
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 273
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 098 098 000 Old_age Always - 1954
10 Spin_Retry_Count 0x0032 100 100 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 100 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 273
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 6
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 266
194 Temperature_Celsius 0x0022 115 104 000 Old_age Always - 35
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0
SMART Error Log Version: 1
ATA Error Count: 306 (device log contains only the most recent five errors)
CR = Command Register [HEX]
FR = Features Register [HEX]
SC = Sector Count Register [HEX]
SN = Sector Number Register [HEX]
CL = Cylinder Low Register [HEX]
CH = Cylinder High Register [HEX]
DH = Device/Head Register [HEX]
DC = Device Command Register [HEX]
ER = Error register [HEX]
ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.
Error 306 occurred at disk power-on lifetime: 1706 hours (71 days + 2 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
04 61 02 00 00 00 a0 Device Fault; Error: ABRT
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
ef 10 02 00 00 00 a0 08 22:17:38.065 SET FEATURES [Enable SATA feature]
ec 00 00 00 00 00 a0 08 22:17:38.065 IDENTIFY DEVICE
ef 03 46 00 00 00 a0 08 22:17:38.064 SET FEATURES [Set transfer mode]
ef 10 02 00 00 00 a0 08 22:17:38.064 SET FEATURES [Enable SATA feature]
ec 00 00 00 00 00 a0 08 22:17:38.064 IDENTIFY DEVICE
Error 305 occurred at disk power-on lifetime: 1706 hours (71 days + 2 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
04 61 46 00 00 00 a0 Device Fault; Error: ABRT
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
ef 03 46 00 00 00 a0 08 22:17:38.064 SET FEATURES [Set transfer mode]
ef 10 02 00 00 00 a0 08 22:17:38.064 SET FEATURES [Enable SATA feature]
ec 00 00 00 00 00 a0 08 22:17:38.064 IDENTIFY DEVICE
ef 10 02 00 00 00 a0 08 22:17:38.063 SET FEATURES [Enable SATA feature]
Error 304 occurred at disk power-on lifetime: 1706 hours (71 days + 2 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
04 61 02 00 00 00 a0 Device Fault; Error: ABRT
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
ef 10 02 00 00 00 a0 08 22:17:38.064 SET FEATURES [Enable SATA feature]
ec 00 00 00 00 00 a0 08 22:17:38.064 IDENTIFY DEVICE
ef 10 02 00 00 00 a0 08 22:17:38.063 SET FEATURES [Enable SATA feature]
ec 00 00 00 00 00 a0 08 22:17:38.063 IDENTIFY DEVICE
Error 303 occurred at disk power-on lifetime: 1706 hours (71 days + 2 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
04 61 02 00 00 00 a0 Device Fault; Error: ABRT
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
ef 10 02 00 00 00 a0 08 22:17:38.063 SET FEATURES [Enable SATA feature]
ec 00 00 00 00 00 a0 08 22:17:38.063 IDENTIFY DEVICE
ef 03 46 00 00 00 a0 08 22:17:38.063 SET FEATURES [Set transfer mode]
ef 10 02 00 00 00 a0 08 22:17:38.063 SET FEATURES [Enable SATA feature]
ec 00 00 00 00 00 a0 08 22:17:38.062 IDENTIFY DEVICE
Error 302 occurred at disk power-on lifetime: 1706 hours (71 days + 2 hours)
When the command that caused the error occurred, the device was active or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
04 61 46 00 00 00 a0 Device Fault; Error: ABRT
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
ef 03 46 00 00 00 a0 08 22:17:38.063 SET FEATURES [Set transfer mode]
ef 10 02 00 00 00 a0 08 22:17:38.063 SET FEATURES [Enable SATA feature]
ec 00 00 00 00 00 a0 08 22:17:38.062 IDENTIFY DEVICE
ef 10 02 00 00 00 a0 08 22:17:38.062 SET FEATURES [Enable SATA feature]
SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 1954 -
# 2 Short offline Completed without error 00% 0 -
# 3 Conveyance offline Completed without error 00% 0 -
SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
This is my mdadm configuration:
[tolga@Ragnarok ~]$ cat /etc/mdadm.conf
ARRAY /dev/md/Asura metadata=1.2 UUID=34bab60a:4d640b50:6228c429:0679bb34 name=Ragnarok:Asura
I've checked all partition tables, everything seems ok. "Error 30[x] occurred at disk power-on lifetime: 1706 hours (71 days + 2 hours)" seems to be a one-time event, which happened on 1706 hours (I don't know why; no power loss or something similar). Other than those smartctl errors, everything seems fine. I've also inspected the drive; no suspicious noises or anything else, works like the other 3 drives. Am I safe to simply re-add the drive using "sudo mdadm --manage --re-add /dev/md127 /dev/sdd1" and let it re-sync or should I flag it as failed and then re-add it to the RAID?
I am using 4x 2TB Western Digital Red drives in a RAID 5, which are about 1 year old and they ran perfectly fine until now. The server is currently shut down until this problem is fixed. I currently got a partial backup of my data (most important ones) and will make a full backup, before attempting a repair. At the moment, I'm still able to access all my data, so nothing's wrong there.
So, what do you guys think, what should I do?
Last edited by tolga9009 (2014-09-13 12:48:13)

Thank you brian for the fast reply. I've backed up all my important data and tried the command. It's not working ...
[tolga@Ragnarok ~]$ sudo mdadm --manage --re-add /dev/md127 /dev/sdd1
mdadm: --re-add for /dev/sdd1 to /dev/md127 is not possible
[tolga@Ragnarok ~]$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 1.8T 0 disk
ââsda1 8:1 0 1.8T 0 part
ââmd127 9:127 0 5.5T 0 raid5 /media/Asura
sdb 8:16 0 1.8T 0 disk
ââsdb1 8:17 0 1.8T 0 part
ââmd127 9:127 0 5.5T 0 raid5 /media/Asura
sdc 8:32 0 1.8T 0 disk
ââsdc1 8:33 0 1.8T 0 part
ââmd127 9:127 0 5.5T 0 raid5 /media/Asura
sdd 8:48 0 1.8T 0 disk
ââsdd1 8:49 0 1.8T 0 part
sde 8:64 0 59.6G 0 disk
ââsde1 8:65 0 512M 0 part /boot/efi
ââsde2 8:66 0 4G 0 part [SWAP]
ââsde3 8:67 0 54.6G 0 part /
ââsde4 8:68 0 512M 0 part /boot
Out of curiosity, I've compared "mdadm -E" of the corrupted and a healthy drive. Here's the output:
[tolga@Ragnarok ~]$ diff -u sdc sdd
--- sdc 2014-02-21 23:28:51.051674496 +0100
+++ sdd 2014-02-21 23:28:55.911816816 +0100
@@ -1,4 +1,4 @@
-/dev/sdc1:
+/dev/sdd1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
@@ -14,15 +14,15 @@
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=1167 sectors
- State : clean
- Device UUID : 4ce2ba99:645b1cc6:60c23336:c4428e2f
+ State : active
+ Device UUID : 4aeef598:64ff6631:826f445e:dbf77ab5
- Update Time : Fri Feb 21 23:18:20 2014
- Checksum : a6c42392 - correct
- Events : 16736
+ Update Time : Sun Jan 12 06:40:56 2014
+ Checksum : bf106b2a - correct
+ Events : 7295
Layout : left-symmetric
Chunk Size : 512K
- Device Role : Active device 2
- Array State : AAA. ('A' == active, '.' == missing, 'R' == replacing)
+ Device Role : Active device 3
+ Array State : AAAA ('A' == active, '.' == missing, 'R' == replacing)
So, I guess my only way to fix this is remove the faulty drive from the RAID, zero out the superblock and then re-add it as a new drive. Or is there any other way to fix this?
//Edit: I've used "mdadm --detail /dev/md127" and found out, that the faulty drive wasn't even listed anymore. So instead of using "re-add", I simply added it as a new drive and it's resyncing now. In about 220mins, I'll know more ! Is there a way to check for corruption after syncing the drives?
//Edit: ^ this worked. My drive probably didn't got kicked after the 3.13 upgrade, but I've simply noticed it then. The drive seems to be kicked after ~1700 hours for some unknown reason - I've now disconnected and reconnected all drives to opt out any wiring issues. Since the drive was out of sync, simply re-adding it didn't work. I had to manually add it to the array again and this caused a resync, which took around 3,5 hours. I think that's okay for a 4x 2TB RAID 5 array. Everything is working fine again, no data corruption, nothing. I'll mark it as solved.
Last edited by tolga9009 (2014-09-13 12:59:22)

After updating to 10.10.3, now my Macbook Pro will not stay logged in. I log in after restarting, and it will stay logged in for 3-5 seconds then immediately log off and go back to the login screen. Any help?

After updating to 10.10.3, now my Macbook Pro 15" (mid-2014) will not stay logged in. I log in after restarting, and it will stay logged in for 3-5 seconds then immediately log off and go back to the login screen. Any help?
By the way, I also updated my Macbook Pro 17" (mid-2009) and it seems to be running fine, though I haven't tried to restart it and log in. I'm afraid I won't be able to get this one to work either if I do.

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

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Basic troubleshooting is reset, restart, restore. Has any of this been tried?

RAID rebuilds whenever I restart

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iMac G5 Mac OS X (10.4.4)

Hello
I had the same problem with my LaCie 250's...I ended up getting SoftRAID and have had no problems since. I wonder how robust the built-in Apple RAID functionality actually is... The biggest single advantage of SoftRAID (aside from it's reliability) is the ability to rebuild the RAID set in the background, allowing you to continue working.
I also think the LaCie drives are a bit sensitive when powering off. I wrote a short AppleScript, which I can't now recall, because I saved it as run only ;-(
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Hope this helps
Paul
PS. Eagerly awaiting Intel version of SoftRAID now my new iMac is on it's way...

Also RAID 5 missing after reboot; RA Utilities non effective

I am having a nearly identical problem as listed in the "RAID 5 missing after reboot; RA Utilities non effective" thread, with one or two small differences.
We shut down our Xserve RAID normally on friday, started it back up on Monday to find that one of the arrays was no longer there. RAID 1 is still working perfectly, but RAID 2 now has all the drives listed as spare. Tried all the tools in RAID Admin, but nothing has worked. At the advice of Apple tech support i updated the firmware to 1.5, swapped out controllers and cables, and tried using the Recognize RAID command in utilities. Nothing has worked. Apple recomended bring the drives to Drive Savers to get the data recovered. Does anyone have any other ideas?
Oh, also this raid was reporting a failed drive on friday before it was shut off, when powered back on the drive now claims to be fine.

Guess I got lucky.... After a reboot of the Xserve RAID, RAID #2 mounted again. Did my backups, shut it back down, and updated firmware to 1.5 with no problems. All seems good now.
Still wondering what happened.
It appears that drive #8 failed, and after the rebuild with new replacement drive, it seems as though the controller needed to be restarted too. The odd thing is, before the restart, #2 was acting like it had three new drives and no array configured at all. After the reboot, there is the RAID 5 array, no rebuild or anything - ready to go.
So here is my question:
How often does everyone reboot their Xserve RAID? should it be done periodically? Every 3 months? Every month?
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I've repaired permissions a few times (there were a lot), and restarted but nothing has fixed it yet.
I had been logged out of iCloud, but once I logged back in, my Mail came back (just my me.com account-- still missing my Gmail, will need to reset I guess), along with Calendar and Contacts-- those are ok.
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Suggestions?
Thanks for your help!

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Safe Mode - Mavericks
Safe Mode - About
Try running this program when in your old account and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor. Please use copy and paste as screen shots can be hard to read.
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Any one faced problems with E90 Phone getting hanged after restart.... It hangs up at the boot cycle..... You have to hard format using * + Call + 3 + Power on button to reformat it.
But after reformating it after i restore my data, after restart it again hangs...
Any one aware of any firmware or software that can help me solve this issue.

It is the orginal Snow Leopard install disk that came with the machine.
Techtool indicates that the dvd drive is working correctly.
Techtool shows Disks 3 and 4 are working correctly.
Disk utility and disk warrior show 3 & 4 are working correctly.
Disk utility and disk warrior say that the raid setup needs to be rebuilt.
In order to rebuild the raid and lots of other reasons using the install disk is necessary.

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I just had to download and re-install iTunes on my Powerbook G4 due to a hard drive crash. I am currently in 10.4.5. I downloaded iTunes from Apple's sight and started the install. Everything went fine and the computer did its mandatory restart. After restarting there is no evidence of iTunes anywhere on my hard drive. So I try to reinstall it from the installer and all the items are ghosted out saying skip. When I try to proceed it says there is nothing to install. I tried verifying/repairing Disk Permissions with Disk Utility and nothiung showed up. Any help would be greatly appreciated. Thanks.

When I try to proceed it says there is
nothing to install. I tried verifying/repairing
Disk Permissions with Disk Utility and nothiung
showed up. Any help would be greatly appreciated.
Thanks.
I believe I have the answer -- at least it worked for me. With a huge assist from Apple Tech Support, I finally came up with with the following...
Go to Finder > Hard Drive > Library > Receipts. There you will find four files starting with iTunes. Remove all four to the Trash. Empty it. Restart your computer. And then the Install program on the virtual drive will work and you'll get iTunes 6.0.4.
Hope that helps.
Regards,
Richard Mackenzie
www.MackenzieProductions.com
Power Book G4 - 17 inch Mac OS X (10.4.5)

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ITunes RADIO is not working. "iTunes could not connect to the iTunes Store. Make sure your internet connection is active and try again." Try as I may, as many as ten attempts, trying to connect after restart, after shutdown, nothing works. Just so - iTu

iTunes RADIO is not working.
“iTunes could not connect to the iTunes Store. Make sure your internet connection is active and try again.” Try as I may, as many as ten attempts, trying to connect after restart, after shutdown, nothing works. Just so …
iTunes STORE not “connectable” with my otherwise perfectly-working internet connection, viable, up and running for all other uses.
Simply put, firstly, I can't connect to the internet when I click on Radio. People are quite suspicious that this is Apple incompetence or your company's famous arrogance for this commonly-suffered problem that you won't or “can’t” fix.
Read the many web comments and you won’t be pleased with yourselves: the suspicion is that if you ruin internet radio on iTunes, Apple will somehow make more money on music downloads, etc. Bull.
Also, thirdly, my old playlist of 20 or so internet radio stations in the Ambient category STILL PLAYS !
Then fourth, I installed the latest available version of QuickTime Player 7.app Version 7.6.6 but it didn’t solve the problem either. I had QuickTime Player.app Version 10.2, but substituted what Apple website said was the latest, LOWER NUMBERED QuickTime Player version of 7.6.6
Fifth, I can't connect to iTunes store no matter what I do or what user group's advice I try. So I can’t buy or download anything from iTunes. Bad for business.
Sixth, I updated to the latest version of iTunes but this weird problem remains. All suggested Apple fixes or user group fixes are useless. Where is Apple’s famous technical competency, vaunted customer support?, and user-friendly product reputation? Get it back, please.
Solve this problem of yours ASAP for us, your numerous disgruntled, dissatisfied customers of iTunes. You can do better, should, and really –in all fairness- must.
===============================================================
NOTE: no password for iTunes exists in my Keychain. Is this a problem?
Apple ACCOUNT ID, and iTunes ID password, works but not to access iTunes with my healthy internet connection.
Apple store id It works via direct internet connetion but not through iTunes. Very strange.
===============================================================
FYI, Hardware Overview:
Model Name:                       MacBook Pro
Model Identifier:                 MacBookPro8,2
Processor Name:               Intel Core i7
Processor Speed:               2 GHz
Number of Processors:    1
Total Number of Cores:    4
L2 Cache (per Core):         256 KB
L3 Cache:                            6 MB
Memory:                              16 GB
Boot ROM Version:            MBP81.0047.B27
SMC Version (system):      1.69f4
Serial Number (system):   C0*******F8V
Sudden Motion Sensor:
State:   Disabled
Intel 6 Series Chipset:
Vendor: Intel
Product:            6 Series Chipset
Link Speed:       6 Gigabit
Negotiated Link Speed:           6 Gigabit
Description:      AHCI Version 1.30 Supported
M4-CT512M4SSD2:
Capacity:           512.11 GB (512,110,190,592 bytes)
Model: M4-CT512M4SSD2
Revision:           040H
Serial Number: 0000000012330912E75A
Native Command Queuing:    Yes
Queue Depth:   32
Removable Media:        No
Detachable Drive:        No
BSD Name:         disk0
Medium Type:      Solid State
TRIM Support:     Yes
Partition Map Type:     GPT (GUID Partition Table)
S.M.A.R.T. status:         Verified
Volumes:
disk0s1:
Capacity:           209.7 MB (209,715,200 bytes)
BSD Name:         disk0s1
Content:            EFI
disk0s2:
Capacity:           511.25 GB (511,250,432,000 bytes)
BSD Name:         disk0s2
Content:            Apple_CoreStorage
Recovery HD:
Capacity:           650 MB (650,002,432 bytes)
BSD Name:         disk0s3
Content:            Apple_Boot
Volume UUID:   600737FB-7A29-3BAE-859E-CBFE2E90C39A
<Edited by Host>

This my sound too simple, but I just kept clikning on the arrow next to the selected music and it finally "Kicked" in.
I live in Europe ,So Be persistent and don't give up ! Aug. 2013

Performance degradation after setting filesystemio_option=setall from none.

Hi All,
We have facing performance degradation after setting filesystemio_option=setall from none on my two servers as mentioned below.
Red Hat Enterprise Linux AS release 4 (Nahant Update 7) 2.6.9 55.ELhugemem (32-bit)
Red Hat Enterprise Linux Server release 5.2 (Tikanga) 2.6.18 92.1.10.el5 (64-bit)
We are seeing lots of Disk I/O happening. We expected "*filesystemio_option=setall* " will improve performance but it is degrading. We getting slowness complains.
Please let me know do we need to set somethign else along with this ...like any otimizer parameter( e.g. optimizer_index_cost_adj, optimizer_index_caching).
Please help.

Hi Suraj,
<speculation>
You switched filesystemio_options to setall from none, so, the most likely reason for performance degradation after switching to setall is the implementation of directio. Direct I/O will skip the filesystem buffer cache, and and allow Oracle to read directly from disk to the database buffer cache. However, on a system where direct I/O is not implemented, which is what you had until you recently messed with that parameter, it's likely that you had an undersized database buffer cache, but that was ok, because many (most) of the physical I/Os your database was doing, were actually being serviced by the O/S filesystem buffer cache. But, you introduced direct I/O, and wiped out the ability of the O/S to service any physical I/Os from filesystem buffer cache. This means that every cache miss on the database buffer cache, turns into a real, physical, spin-the-disk, move-the-drive-head, physical I/O. And, you are suffering the performance consequences.
</speculation>
Ok, end of speculation. Now, assuming that what I've outlined above is actually going on, what to do? Why is direct I/O lower performing than buffered, non-direct I/O? Shouldn't it's performance be superior?
Well, when you have an established system that's using buffered I/O, and you switch to direct I/O, you almost always will have to increase the size of the database buffer cache. The problem is that you took a huge chunk of memory away from the the O/S, that it was using to buffer your I/Os and avoid physical I/O. So, now, you need to make up for it, by increasing the size of the database buffer cache. You can do this, without buying more memory for the box, because the O/S is no longer going to need to use so much memory for filesystem buffers.
So, what to do? Is it worth switching? Well, on balance, it makes sense to use direct I/O, and give Oracle a larger database buffer cache, for the simple fact that (particularly on a server that's dedicated to being an Oracle database server), Oracle has far more sophisticated caching algorithms, and a better understanding of the various types of data being cached, and so should be able to make more efficient use of the memory, than the (relatively) brain dead caching algorithms of the kernel and filesystem mechanisms.
But, once again, it all comes down to this:
What problem are you trying to solve? Did you have any I/O related issues? Do you have any compelling reason to implement direct I/O? Rule #1 is "if it ain't broke, don't fix it." Did you just violate rule #1? :-)
Finally, since you're on Linux, you can use the 'free' command to see how much memory is on the box, how much is free, and how much is dedicated to filesystem cache buffers. This response is already pretty long, so, I'm not going to get into details, however, if you're not familiar with the command, the results could be misleading. Read the man page, and try to be clear about understanding it before you make any assumptions about the output.
Hope that helps,
-Mark

Site does not load after some minutes of creation or after restart the server

Hello,
I have been asked to create a test enviroment identical to the production enviroment. So, what I did was:
Backed up the production web application's content database: Prod_WSS_ContentDB
Created new test servers (domain controller, sql server and sharepoint 2013 server) in a new, completely isolated, network environment, without any connection with the production environment (specifically Azure)
Created a new web application in test environment with a new content database.
Dismounted the new content database with powershell: Dismount-spcontentdatabase Test_WSS_Content
Copy the Prod_WSS_ContentDB database to the test sql server and restored it with Management Studio.
Mount the Prod_WSS_ContentDB databe to the web application with powershell:
Mount-spcontentdatabse Prod_WSS_ContentDB -WebApplication http://testsp/
Then, when I type http://testsp in the browser it redirects me to http://testsp/SitePages/Home.aspx
and the site loads exactly as the production environment.
But, after some minutes, or if I restart the Sharepoint Server, when I navigate to
http://sitesp I am redirected to http://testsp/SitePages/Home.aspx
as expected, but the site does not load, the browser just show a complety blank page.
The Central Administration site loads normally.
Trying to fix it I found that if I dismount the content database Prod_WSS_ContentDB, then mount the test database Test_WSS_Content,
then navigate to the site, dismount Test_WSS_Content and finally mount again Prod_WSS_ContentDB, the site loads normally, no blank page, but after some minutes or if I restart the same happens again.
For the error event I receice in event viewer it seems that the problem is related to database. I have not found a solution for this error... How can I solve this?
The error is:
Log Name: Application
Source: Microsoft-SharePoint Products-SharePoint Foundation
Date: 6/27/2014 2:44:22 PM
Event ID: 5586
Task Category: Database
Level: Error
Keywords:
User: UCETEST\spaccount
Computer: TESTSP01.ucetest.edu.do
Description:
Unknown SQL Exception -2146893055 occurred. Additional error information from SQL Server is included below.
A connection was successfully established with the server, but then an error occurred during the pre-login handshake. (provider: SSL Provider, error: 0 - The handle specified is invalid)
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-SharePoint Products-SharePoint Foundation" Guid="{6FB7E0CD-52E7-47DD-997A-241563931FC2}" />
<EventID>5586</EventID>
<Version>15</Version>
<Level>2</Level>
<Task>3</Task>
<Opcode>0</Opcode>
<Keywords>0x4000000000000000</Keywords>
<TimeCreated SystemTime="2014-06-27T14:44:22.743159500Z" />
<EventRecordID>4742</EventRecordID>
<Correlation />
<Execution ProcessID="1688" ThreadID="1692" />
<Channel>Application</Channel>
<Computer>TESTSP01.ucetest.edu.do</Computer>
<Security UserID="S-1-5-21-2552298216-324766354-3392103171-1108" />
</System>
<EventData>
<Data Name="int0">-2146893055</Data>
<Data Name="string1">A connection was successfully established with the server, but then an error occurred during the pre-login handshake. (provider: SSL Provider, error: 0 - The handle specified is invalid)</Data>
</EventData>
</Event>
Melvintt
MCTS, Windows Server 2008 R2: Network Infrastructure
MCTS, Windows Server 2008 R2: Active Directory, Configuring

Hi,
According to your post, my understanding is that Site does not load after some minutes of creation or after restart the server.
Please make sure you create a test environment for existing production site correctly.
Here are some great articles for your reference:
Moving content between SharePoint environments
Copy SharePoint production data to a test environment
Build a SharePoint 2010 Test/Development Farm
Best Regards,
Linda Li
Linda Li
TechNet Community Support
Hello Linda Li,
I follwed that steps to create my test enviroment... and I have recreated it some times using that same steps, but the problem persits. After some minutes or after I restart the SharePoint server the site does not load.
Melvintt
MCTS, Windows Server 2008 R2: Network Infrastructure
MCTS, Windows Server 2008 R2: Active Directory, Configuring

Is there a way that I can get Automator to start a server for me after restart of Mac

Hello!
I have a serverprogram from an external company that doesnt start after a restart of the mac that I run that server on. It starts the program but it doesnt start up the server of the program. All settings are right and I have consulted others with same config. After a restart the server turns up in the statusbar but as turned off. So I can go to the statusbar, click on the symbol and choose "start server".
As I cant get the server to start up automaticly I was wondering if I can get the automator to start it up for me after a restart of the mac?
Ifso how?
/ Mikke
Macmini i5 Mavericks

I found out how to make a flow and how to make a program of that. BUT it wont execute after restart. Anyone?

IMac - Display doesn´t work after restart

My iMac 21 Display doesn´t work after restart. If I turn it off and 1 hour later I want use it again the iMac shows the white screen with the mac logo and then the display goes off. I connected an external display to check if the iMac was ON and with the external display I can login and do everything but the iMac Display doesn´t work .
If I turn it off and wait 3 or 4 hours and then turn it back on the display works OK.
This is very strange behavior I have spent hours and hours trying to fine the solution or a similar issue but nothing so I am looking help here at apple.com
BTW When I bougth the iMac 21 there were some spots over the display so the display was replaced by the provider. The warranty has expired by now.

To tell you the truth, I don't know if they have to repalce the LCD panel or what they do for a bad backlight. In this reality of block or assembly replacement it probably involves repalcing the panel and not the backlight component. Don't know what it would cost. You'd have to ask that of a service center.

RAID 5 degrades after restart

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