Adding 2nd drive to existing array

[Mark Chimes]

Hi All,

I have an ML350 G5 with an E200i controller.
2x SAS and 2x SATA drives installed. The SATA drives are mirrored and one of the SAS drives is set in its own array with logical drive as RAID 0. I boot from this SAS drive.

I have two questions.

1.How do I add my 2nd SAS drive into the existing SAS array.

2. How do I convert this cofiguration from RAID 0 to RAID 1+0, without losing the O/S on the existing SAS drive?

Can this be done?

[Gary Antonio Benavides]

Once you add the new hard drive all you have to do is to expand and extend the logical drive. Once the logical drive is expanded and extended, there is going to be the option Migrate Logical Drive.

[Gary Antonio Benavides]

Even though if you want to Have a RAID 1+0 you need an even number of hard drives.

[Mark Chimes]

Hi gary,

hewre's the wierd part.
HP delivered this server with a SINGLE physical drive set as a logical drive and configured as RAID 0.
I thought RAID 0 insisted on a minimum of 2 drives, hence my confusion.

It turns out that once a drive has been placed in a RAID array of a particular type, in this case RAID 0, you cannot change the RAID type to something else without losing the data on the drive.

Thanks for your help

[Gary Antonio Benavides]

If you lose a Drive in a RAID 0, the array is broken and the information lost, since RAID 0 is not fault tolerant. You can do the expansion and extension without loosing the Data. Even though a backup is alwas recommended. Check the following user Guide on page 16. Expand Array
http://bizsupport.austin.hp.com/bc/docs/support/SupportManual/c00729544/c00729544.pdf