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тАО06-24-2010 06:56 AM
тАО06-24-2010 06:56 AM
RAID 5 Capacity Expansion
i need to increase the capacity of our fileserver, raid5 with bigger harddrives.
the systempartition is an raid 1 with 150gb drives.
is there a possibility to "change" the drives online?
the datapartition is now configured as raid 5 with 3x150gb sas driver, i want to change them to 3x300gb drives.
is it possible to do this with hp array config. utility?
many thanks!
thomas
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тАО06-25-2010 01:53 AM
тАО06-25-2010 01:53 AM
Re: RAID 5 Capacity Expansion
You'll end with a RAID that has 600 GB usable, 300 used by the existing LUN. Then you have to expand the LUN to use the 600 GB.
And finally, expand the filesystem using operating system tools.
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тАО06-25-2010 01:59 AM
тАО06-25-2010 01:59 AM
Re: RAID 5 Capacity Expansion
excelent news!
i will use server 2008 tools to expand the capacity.
many thanks!
thomas
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тАО06-25-2010 03:54 AM
тАО06-25-2010 03:54 AM
Re: RAID 5 Capacity Expansion
just have on mind you need raid controller with baterry backuped cache to online expand hw raids....
Jan
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тАО06-25-2010 10:19 AM
тАО06-25-2010 10:19 AM
Re: RAID 5 Capacity Expansion
i'm not sure, having battery backed up controller...i will find out.
in the case i havn't, how is it possible to expand? backup and restore? or ist there an other solution?
many thanks
thomas
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тАО06-25-2010 12:06 PM
тАО06-25-2010 12:06 PM
Re: RAID 5 Capacity Expansion
I you not have battery cache, you can use solution provided by vcespon, but at the end not expand the array, but create a new logical volume. This allows you have another 300GB disk under windows.
You can live with if if you do not need whole 600GB in one windows disk.
Jan