topic Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring in Operating System - Linux

Adding 2nd hard drive to DL360 for RAID 1 mirroring

ccmooretx — Mon, 18 Jun 2007 14:35:54 GMT

Hi,

I need to add a 2nd hard drive to a DL360 to be used as a mirrored hard drive in a RAID 1 array. The DL360 currently has only 1 hard drive and is running RHEL 3.

Can this mirrored configuration be added without having to re-install the OS and applications?

Can someone post the steps to do this or post a link to some documentation about this?

Thanks,
Casey

Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring

Rob Leadbeater — Mon, 18 Jun 2007 14:43:04 GMT

Hi Casey,

Can you confirm which generation DL360 you're using...

Assuming that your drives are attached to a SmartArray controller, then yes you should be able to do what you want. For example, a DL360 G3 has a 5i SmartArray Controller built in.

The Quickspecs for that controller here:

http://h18000.www1.hp.com/products/quickspecs/11063_div/11063_div.HTML

state that it can do "Online RAID Level Migration (between any RAID level)"

Hope this helps,

Regards,

Rob

Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring

ccmooretx — Mon, 18 Jun 2007 15:02:39 GMT

Thanks. It is a G4. So then is it safe to assume that this machince has the 5i SmartArray controller? Is there an easy way to verify this? I will look at the link you posted.

Thanks,
Casey

Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring

Rob Leadbeater — Mon, 18 Jun 2007 15:43:06 GMT

Hi,

The G4 has a SmartArray 6i controller as standard, so its very likely that it is this that the drive is connected to.

http://h18004.www1.hp.com/products/quickspecs/11937_div/11937_div.html

The 6i controller has the same RAID level migration features as the 5i.

http://h18000.www1.hp.com/products/quickspecs/12030_div/12030_div.HTML

Cheers,

Rob

Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring

ccmooretx — Fri, 22 Jun 2007 00:31:14 GMT

I just wanted to post a follow up to say that I was able to add the 2nd drive and migrate it to RAID 1+0. I used the ACU CLI for linux and it was really straight forward.

Thanks again Rob!

Regards,
Casey

Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring

Sac_3 — Mon, 09 Jul 2007 15:03:50 GMT

Hi ccmooretx ,

Good that u were able to add the 2nd disk successfully. Can u pls giv me the steps to

1.) Add the 2nd disk using hpacu cli command line?
2.) Start the data sync process from 1st disk to 2nd disk?

Any other commands that u used..

Thanks,
SaC

Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring

skt_skt — Tue, 10 Jul 2007 15:46:13 GMT

it is always good to keep an update of how did we finished it. We are all trying to help each others.Your tips are going to help others.

Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring

ccmooretx — Wed, 11 Jul 2007 00:14:57 GMT

Hi SaC,

I have the commands saved to a text file on another computer that I currently do not have access to since I'm on vacation. I'll post the the text file when I get back home this Saturday, July 14.

From what I remember I ran two commands from the CLI. The first was the command to add the 2nd drive to the array. This took quite a while ~ 4 hours or so, not exactly sure. Once the drive was added to the array I ran the command to change RAID configuration.

Sorry, I'm drawing a blank on the exact commands but will post the details this weekend.

Casey

Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring

Sac_3 — Wed, 11 Jul 2007 14:28:10 GMT

Thanks for responding. Pls do not forget to post the commands. I am waiting for that.

Regards,
SaC.

Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring

ccmooretx — Mon, 16 Jul 2007 13:44:23 GMT

Hi,

Attached is text file that shows all of the commands I entered as well as the CLI screen output. I've also added comments.

I hope this helps.

Casey

Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring

Sac_3 — Mon, 16 Jul 2007 14:21:48 GMT

Thx for a detailed steps. I learnt something new out of this.

Once again THX A BUNCH........... ÂºÂ¿Âº

Regards
SaC

Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring

skt_skt — Mon, 16 Jul 2007 20:27:38 GMT

so you have adjust with raid 1+0 .You were looking for RAID 1.

Re: Adding 2nd hard drive to DL360 for RAID 1 mirroring

ccmooretx — Tue, 17 Jul 2007 11:39:28 GMT

As I understand it since there are only two drives (both in Array A) then it really is RAID 1 and not RAID 1+0. So, the drives are mirrored. I would need to add two more drives to have the nested striping across the mirrored drives.

Casey