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Change raid configuration on BL460 G7 running ESXi 5.0

Posted on 2013-12-04
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Last Modified: 2013-12-04
I need to increase the amount of disks in an MDS600 connected to a BL460c G7 blade server.  As part of the disk increase I will be moving the VMs to another storage area so that I can add the additional disks and change the raid configuration from raid 5 to raid 10.  The disks will then be put into the same zone using the onboard administrator.

The blade server is running ESXi 5.0.

I have downloaded the HP offline bundle and vSphere CLI but wanted to know if there was a simpler way to do this.

If anyone has any experience with this it would be appreciated.
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Question by:JAM-Tech
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by:andyalder
ID: 39695754
It's easier to do the array configuration using the Array Configuration Utility under the SmartStart CD, however you still have to present the extra disks to the controller first by configuring the MDs600. Since you are moving the data to another server it's not worth using array expansion and RAID level migration, just delete the old array and create a new one.
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by:JAM-Tech
ID: 39695778
Hi andyalder,

Thanks for getting back so quickly.

I'm moving the vms off only as a precaution as this is the first time that i've done this.

My preference would be to keep the data on their now so I don't have to reinstall ESXi on the server and just add the extra disks and change from raid 5 to raid 10.  Would this be possible?

Also where would I be able to get the smartstart CD, we don't have one in the office.

Thanks,
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andyalder earned 500 total points
ID: 39695883
Yes, you can add the extra disks and migrate  the RAID level although that takes a long time since it has to shuffle a lot of data around. You need a battery on the mezzanine RAID controller to use RAID level migration and array expansion although most have them fitted.

It's a two step process, first you add the disks to the array and it shuffles the data about so there's a load of free space at the end, then you change the RAID level and it shuffles it about again, It will be quicker using the CD than doing it online but you won't be able to use the server while it's booted from CD of course although you can reboot to the OS/VMware while the expansion is taking place if you need to.

CD download is here
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Author Comment

by:JAM-Tech
ID: 39695893
I'll give it a go, thanks for the response
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Author Closing Comment

by:JAM-Tech
ID: 39695894
Concise and quick, brilliant.
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