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del780 raid 1 problem when i unplug one of the hardisks
Hi
i have delr780 server with 2 hardsisks each one "1 tera" as raid 1
i have configured form bios to use "raid only " on sata devices
i could do the raid 1 and install the os above the raid 1
but i have 2 problems :
1- sometimes i feel slow with the system and im sure its not software issue
2- now assume i have drives A & B as 1st hardisk and 2nd hardisk
now if A & B plugged ==>system works and sometimes i have slow
if i unplug hardisk A , the system works okay
if i unplug hardisk B , the system dont work and i see "fail" on the raid status
if i recover disk A & B , it works
the question is being asked here .
why if i remove one hardisk B of the raid devices the system get down ??
shoudnt it be as raid 1 and if i remove one of the hardisks , the other should be redy and up the system ???
any help ?
cheers
Hi thank you ,
i have server 2012 r2 64 bits
yes i have opened del website and installed manintenence check software and run on my PC
it says that all devices including Raid & hardisks are fine without any error.
now agian here is images with what i mean .
when i remove disk B and keep disk A
http://www13.0zz0.com/2015/04/12/09/648105938.jpg
now when i plug disk B only
http://www13.0zz0.com/2015/04/12/09/803742397.jpg
here when i plug both hardisks
http://www13.0zz0.com/2015/04/12/09/395713948.jpg
have a look and tell me
cheers
theflash1932
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Posted April 12th, 2015 08:00
Disk A had failed. Disk B is your good disk. Allow the rebuild to finish so that they both contain valid data. Swapping disks willy nilly is just asking for trouble.
Hany Al-Assar
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Posted May 21st, 2015 03:00
Dear Sir,
I was wondering how did you figured/decided that disk A is failing!
Is there a way or a tool to test individual Disks in a certain RAID?
Thanks for your time...theflash1932
11 Legend
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Posted May 21st, 2015 07:00
Your disks are SATA, and they are 1TB ... it will take a while.
You can test disks using Dell's Online (from Windows) or 32-bit Diagnostics (bootable).
Hany Al-Assar
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Posted May 21st, 2015 11:00
Dear THEFLASH1932
Thanks for all the efforts. Is there any 3rd party software I can use?
theflash1932
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16255 Posts
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Posted May 21st, 2015 21:00
There is no trustworthy third-party software for running diagnostics on drives. You need to use the manufacturers' utilities. If it is a Seagate drive, use Seagate testing tools; if it is a WD drive, use WD testing tools. IF the drive is Dell-cobranded (meaning it is a Dell-certified/validated enterprise-class drive), then you should use Dell's diagnostics. The drive firmware between all the above-mentioned scenarios may affect the reliability of the results, so use the appropriate utilities.
DR.....
If you can get into Windows, you can use the following for the raid management....
new driver..
downloadcenter.intel.com/.../Intel-Rapid-Storage-Technology-Intel-RST-
Hi thanks ,
but agian ,
can you tell me explanation , why sometimes the raid go into "Rebuidl" or "verify" when i do reboot ??
could this be a raid contoroller issue ?
could this be a hdd issue ?
can u help ?
so far i didn't find a solution to this problem
cheers
DELL-Chris H
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Posted April 8th, 2015 07:00
Dr X.,
I am not sure of the system you are referencing, could you clarify the model you are working with?
It sounds like drive A is failed, or failing. Do you happen to have OpenManage installed on the server, if so what does the status show for that drive? You can also see the status via the raid controller, and then changing to the Physical Disks page. Also, is that drive flashing amber and green on the lights?
Let me know.
DELL-Chris H
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Dell Technologies | Enterprise Support Services
#IWork4Dell
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