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тАО01-10-2006 10:30 AM
тАО01-10-2006 10:30 AM
Solved! Go to Solution.
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тАО01-10-2006 12:26 PM
тАО01-10-2006 12:26 PM
Re: Raid 5 3 x 72GB Upgrade
Power Down Box
Pull one drive restart accept failed HDD and enable Automatic Recovery Slide new Drive in let it Rebuild and do same with second drive,... power off ...
After from ACU use unused space for your needs and from disk manager rest ..
Please have good backup
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тАО01-10-2006 12:54 PM
тАО01-10-2006 12:54 PM
Re: Raid 5 3 x 72GB Upgrade
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тАО01-10-2006 01:08 PM
тАО01-10-2006 01:08 PM
SolutionI have done many "in-place" upgrades without having to power anything down.
Just make sure you have a backup just in case :) And if you keep the Array Rebuild Priority on a Low setting it shouldn't really affect the performance of the OS, just takes a little longer for the rebuild to finish if the server has OS activity to the drives.
Pull out the first drive and replace it with the larger drive. Open the Array config utility to get an idea of the % completed...(Logical drive - More information link- scroll down ..if I remember correctly).
Once that has completed (and it can drag on for quite a while)...repeat with the next drive.
The end result will be that your original Logical drive(s) will remain the same size but you will have a lot of "unused" disk space. At this point you can do a couple of different things:
1. Create a new Logical drive or drives.
2. Extend an existing logical drive (Win2k I think needs SP3 or higher for this).
3. Or a combination of the above.
If you extend an existing logical drive:
Once completed Windows Disk Manager will show unallocated space adjacent to the existing Win2K partition that corresponds to the Logical drive that was extended. So if you want that Win2k partition to take advantage of the new free space you have to use something like ServerMagic or HP's Virtual Replicator with Online Volume Growth or MAYBE Microsoft Diskpart (but that might be a Win 2003 thing).
Good luck
Ed Cox
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тАО01-10-2006 01:33 PM
тАО01-10-2006 01:33 PM
Re: Raid 5 3 x 72GB Upgrade
Thanks very much for your extensive help. I have had a lot of success with Paragon Partition Pro with resizing partitions on Raid 5 arrays so I'll go with that once the rebuild has finished. As you say, the most important detail is to have a full reliable backup.
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тАО01-10-2006 01:44 PM
тАО01-10-2006 01:44 PM
Re: Raid 5 3 x 72GB Upgrade
I have done many "in-place" upgrades without having to power anything down ....
Peter along this is more easy, than powering down, DO NOT ACCEPT THAT RULE; AS A RULE OF THUMB, I saw how people crying when data lost more often when they do one the fly, just incase if something goes wrong you have more chances to get corruption on the RIS table mismatch├в ┬ж. Take your chase open any array controller user guide and read trough how to upgrade space
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тАО01-10-2006 03:46 PM
тАО01-10-2006 03:46 PM
Re: Raid 5 3 x 72GB Upgrade
That is a safe rule to follow. I have worked with and taught countless service techs and ASE's for Compaq since 1991 on SystemPro servers, IDA and IDA-2 controllers, IDA expansion boxes and then all controllers with the Proliant servers since 1993. So there have been numerous situations in which server storage systems were upgraded in this fashion.
With the combination of RAID and the SMART family of controllers it's very safe to do the in place upgrade as I listed above. It would not even be a good business practice to have to constantly bring production servers up and down just to swap out a hard drive. Kind of defeats the purpose of Hot Swap.
It follows the same principle as having a drive fail and an online spare kick in...or swapping out a failed drive for a new drive.
While HP always errs on the side of caution, check out page 2 of this HP document.
ftp://ftp.compaq.com/pub/products/servers/proliantstorage/drives-enclosures/hp_hard_drive_replacement.pdf
So if you have SIM or access to the System Management Homepage you can scope out the overall drive health (pre-failure type info) prior to doing a swap out. The array controllers also indicate "Imminent Drive Failure" during POST and the Amber LED on a drive will now flash on and off in the event a pre-failure condition exists.
Cheers,
Ed
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тАО01-25-2006 05:52 PM
тАО01-25-2006 05:52 PM
Re: Raid 5 3 x 72GB Upgrade
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тАО01-27-2006 02:21 AM
тАО01-27-2006 02:21 AM
Re: Raid 5 3 x 72GB Upgrade
Once the upgrade completed, did you see additional free space in the Array Config utility? If so...you now have the option to "Extend" your existing logical drives so that the new free space can be seen by your OS.
Make sure you have a current backup before doing this extension.
I'm assuming your OS is on Logical Drive 1. You can highlight that in the ACU and there will be an Extend Logical drive option on the right. Once you have chosen that you can dictate how much of the free space you want to allocate to LD 1. After choosing some or all of the free space, the extension process works somewhat similarly to the expansion process...(and it takes awhile too). You can check your progress by clicking on LD 1 and there is a More Information link to the right. Under there at the bottom will be a percentage complete status bar.
After this process completes, check and see if you can get back under the Disk Manager applet.
Ed
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тАО01-29-2006 07:44 AM
тАО01-29-2006 07:44 AM
Re: Raid 5 3 x 72GB Upgrade
Thanks for your help. The expansion process began at 46 percent and after 60 hours is now at 49 percent. This is to expand from 136GB to 261GB. Do you think it's normal to be this slow? In the event log there is a repeated entry for disk performance indicators not being available since the process started.