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тАО06-19-2009 09:44 AM
тАО06-19-2009 09:44 AM
adding higher capacity HDD on existing array
please help.
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тАО06-19-2009 10:06 AM
тАО06-19-2009 10:06 AM
Re: adding higher capacity HDD on existing array
Please check the basic knowledge about RAID levels
http://en.wikipedia.org/wiki/RAID#Standard_levels
AND
If You add higher capacity drives to array, it will use only the amount of space that the smaller drives have.
You can find me from Twitter @JKytsi
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тАО06-19-2009 10:33 AM
тАО06-19-2009 10:33 AM
Re: adding higher capacity HDD on existing array
http://forums11.itrc.hp.com/service/forums/questionanswer.do?admit=109447626+1245433664586+28353475&threadId=606999
I have an similar problem, the controller models are different though.
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тАО06-19-2009 11:24 AM
тАО06-19-2009 11:24 AM
Re: adding higher capacity HDD on existing array
1. You replace the 73GB disks with higher capacity ones. You will see the space increase in the array after all disks in the group are replaced.
2a. Increase the size of existing LUNs (dynamic LUN expansion)
2b. Create new LUNs.
3a. After you increase the LUN size, you have to change the size of the corresponding volume within the OS. (You did not say if it is windows or Linux)
3b. Create and use the volumes for the new LUNs
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тАО06-19-2009 12:46 PM
тАО06-19-2009 12:46 PM
Re: adding higher capacity HDD on existing array
my second thoughts towards the drive expansion is:
1. build a new array say (B)with new disk. mirror the drives.
2.in disk management i rename the new detected drive,say (x)
3.copy the contents of my old drive to the new drive (x)using robocopy.
4.rename my new drive (x) with the old drive letter and assign an name (y) for my old drive.
5.Delete the array (A)
Note: array A does not contain the OS,
------------------------------------------
Hope I am making my point clear - will my second option work?
kindly give in your views, i have to get this implemented on production environment.
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тАО06-19-2009 02:23 PM
тАО06-19-2009 02:23 PM
Re: adding higher capacity HDD on existing array
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тАО06-20-2009 06:16 AM
тАО06-20-2009 06:16 AM
Re: adding higher capacity HDD on existing array
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тАО06-22-2009 03:32 AM
тАО06-22-2009 03:32 AM
Re: adding higher capacity HDD on existing array
If you have unused space in the raid group, you can allocate the space any time. When you replace existing smaller drives with higher capacity ones, you don't see the space increase until you have replaced ALL drives in the group.