topic Re: 12h disk drives in Disk Enclosures

12h disk drives

Eric Firkey — Wed, 06 Jun 2007 07:13:10 GMT

I have several 12h arrays. my question is can I take one disk from one 12h and plug it into another 12h without having any major issues. it would the exact same part number that i will be swapping out.

Re: 12h disk drives

Torsten. — Wed, 06 Jun 2007 07:22:33 GMT

I think so. The array must be online. It will inform you, that the disk was in use before and it cannot include autmatically.
now you have to include it manually.

Re: 12h disk drives

Eric Firkey — Wed, 06 Jun 2007 09:00:08 GMT

what if I format it first? do I still need to include it manually. It so how do i include it manually.

Re: 12h disk drives

Torsten. — Wed, 06 Jun 2007 09:11:18 GMT

You cannot format a single disk in this array (only the all drives in the array at once).

But you can include a drive either using the front panel or the arraymgr commands.

Re: 12h disk drives

Eric Firkey — Wed, 06 Jun 2007 09:30:05 GMT

even if I were to preformat the drive with SCSI Toolbox?

Re: 12h disk drives

Mike Shilladay — Wed, 06 Jun 2007 10:07:00 GMT

Hi Eric,

If the 12H is set to Auto Include, you will have very little to do. The formatting of the disk is not applicable, as the array will (if set) include it. You then create additional LUN's to utilise the space, or leave it unallocated for improved performance, or allocate as an active hot spare.

To include a disk into the array if the Auto Include is not set. To set auto include to on:

arraymgr -i on

To manually include the new disk

arraycfg -D -a

Once the disk is included, you can use the extra capacity as you wish. Although if you wish to make an existing LUN bigger you are strongly advised to backup your data and re-create the LUN and then reload your data.

You may find that the array will carry out a load balancing operation to take account of the additional disk.

If you do not have the manual for the Model 12H, it is located here:

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00269878/c00269878.pdf

Hope that helps,

Mike.