Gareth_Pointon
asked on
Perc 6i RAID 5 Disk Failiour
Ho Folks,
Just for peace of mind please.
I have a Dell Server with a PERC 6i RAID Card running RAID5 build
There are 4 used drives and one is a potential failure.
I have now added an additional drive in to the system and also assigned it to be the dedicated H/S for this Virtual Drive.
I can see it OK in Open Manager and its with in the Virtual Drive as H/S.
Do I need to leave this drive for a period of time before I use it.
If not then do I just take the failing drive offline and that will directly use the dedicated H/S automatically?
Thanks
Just for peace of mind please.
I have a Dell Server with a PERC 6i RAID Card running RAID5 build
There are 4 used drives and one is a potential failure.
I have now added an additional drive in to the system and also assigned it to be the dedicated H/S for this Virtual Drive.
I can see it OK in Open Manager and its with in the Virtual Drive as H/S.
Do I need to leave this drive for a period of time before I use it.
If not then do I just take the failing drive offline and that will directly use the dedicated H/S automatically?
Thanks
ASKER
Hi,
If I take the disk out with been supported via a H/S will it not take the RAID down?
Thanks
If I take the disk out with been supported via a H/S will it not take the RAID down?
Thanks
use dell openmange to tell the controller to use the drive or reboot and ctrl R to do the same in raid bios.
ASKER
To use the H/S drive ?
I have told it to use the spare drive a a dedicated H/S drive but all I have then it the ability to then take the faulty drive offline. I then get a warning saying this could loose data.
Thanks
I have told it to use the spare drive a a dedicated H/S drive but all I have then it the ability to then take the faulty drive offline. I then get a warning saying this could loose data.
Thanks
ASKER CERTIFIED SOLUTION
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I'm not sure that I completely understand your last two comments.
In RAID 5 if one disk fails the raid array is still alive. If two disks are failed, then you loose your data.
When you replace the failed disk, the raid array will start rebuilding and until is not rebuild completely your data is vulnerable.
If you have Hot Spare drive, then RAID array will be rebuild automatically, without waiting for you to put in new drive. The rest you have in my first post.
BUT I guess here is a little bit of confusion about H/S. It can mean Hot Spare and Hot Swap.
Hot swap means that you can pull out drive while the server is running...
Perc 6i supports that.
After some more reading, regarding the current situation I would say that "Replacing member" procedure would be the best one.
For procedure look at the end of this article for "Replacing an Online Physical Disk":
http://stuff.mit.edu/afs/athena/dept/cron/documentation/dell-server-admin/en/Perc6i_6e/chapterh.htm#wp1078519
In RAID 5 if one disk fails the raid array is still alive. If two disks are failed, then you loose your data.
When you replace the failed disk, the raid array will start rebuilding and until is not rebuild completely your data is vulnerable.
If you have Hot Spare drive, then RAID array will be rebuild automatically, without waiting for you to put in new drive. The rest you have in my first post.
BUT I guess here is a little bit of confusion about H/S. It can mean Hot Spare and Hot Swap.
Hot swap means that you can pull out drive while the server is running...
Perc 6i supports that.
After some more reading, regarding the current situation I would say that "Replacing member" procedure would be the best one.
For procedure look at the end of this article for "Replacing an Online Physical Disk":
http://stuff.mit.edu/afs/athena/dept/cron/documentation/dell-server-admin/en/Perc6i_6e/chapterh.htm#wp1078519
ASKER
OK H/S = Hot Spare..
Thanks
Thanks
its simple
pull dead drive
insert new drive
done.
pull dead drive
insert new drive
done.
Best method: Use the OpenManage software to force offline the pred fail drive ... now that you have a hot-spare, as soon as you do, it will begin to rebuild.
Look at page 37:
http://ftp.dell.com/Manuals/all-products/esuprt_ser_stor_net/esuprt_dell_adapters/poweredge-rc-6i_User%27s%20Guide_en-us.pdf
At similar occasions, if the disk has predicted failure, I do not configure hot spare, but I just replace the failing drive and the raid array automatically rebuilds.