topic Re: Have RAID 0 array. Want RAID 1 array. in Disk Enclosures

Have RAID 0 array. Want RAID 1 array.

Christopher Mosses — Tue, 22 Jun 2010 01:57:07 GMT

I have a ProLiant ML350 server with a Smart Array E200i.

SAS Array B contains:
Logical Drive 2 (279.4 GB, RAID 0)

Additionally I have added a matching HDD that is recognized in ACU as:
300 GB 2-Port SAS Unassigned Drive at Port 1I : Box 1 : Bay 4

What are the steps to combine the existing Logical Drive 2 with the Unassigned Drive to make Logical Drive 2 a RAID 1?

Re: Have RAID 0 array. Want RAID 1 array.

Clarete Riana — Tue, 22 Jun 2010 04:05:46 GMT

Hi Christopher,

You have to first expand the logical drive 2 to span across the HDD that you have added. Once this is complete you can migrate the RAID 0 volume to RAID 1.
i.e
step 1: expand logical drive 2
step 2: Migrate logical drive 2 from RAID 0 to RAID 1.

You can look for the exact commands to do this in the tool you use to manage and configure the array.

Re: Have RAID 0 array. Want RAID 1 array.

Víctor Cespón — Tue, 22 Jun 2010 10:31:00 GMT

The Smart Array E200 needs BBWC upgrade to be able to perform Online RAID Level Migration.

Re: Have RAID 0 array. Want RAID 1 array.

Christopher Mosses — Mon, 28 Jun 2010 04:08:35 GMT

Clarete Riana was correct. The two steps worked. Although they took a long time to complete (each step taking about 15 hours) I was able to upgrade from RAID 0 to RAID 1 without any server downtime.

It was not necessary to upgrade the controller with a battery for this to work.

Thank you!

Re: Have RAID 0 array. Want RAID 1 array.

Christopher Mosses — Mon, 28 Jun 2010 04:09:19 GMT

Problem solved.