topic Re: DL360 G3 - RAID migration from RAID0 to RAID1 in Disk Enclosures

DL360 G3 - RAID migration from RAID0 to RAID1

TLC06 — Wed, 11 May 2005 20:25:34 GMT

Initially my server (Win2003) runing on 1 HDD (RAID0). I adding a new HDD and configured both disks in 1 array. After that plan to migrate to RAID1 (Mirriored). I already expand the array and now the new disk is show unused disk in Array A (ACU).
When I try to do RAID migration, I only see RAID0 & RAID1+0. There is no RAID1.
Questions:
1. IS RAID1 = RAID1+0? (I thought RAID1+0 needs 4 HDD)
2. What is the impact if I proceed to migrate it to RAID1+0 and I only have 2 disks.
3. I also notice, under the disk management there, shows missing 2nd disk (The disk confirued as Dynamic). Is it because Windows detected the used disk in the array?

Re: DL360 G3 - RAID migration from RAID0 to RAID1

Stephen Kebbell — Thu, 12 May 2005 03:19:16 GMT

Hi,

RAID1+0 on 2 disks is the same as RAID 1.
There should be no impact if you migrate to that.
Don't know why Windows displays the missing 2nd disk.

Regards,
Stephen

Re: DL360 G3 - RAID migration from RAID0 to RAID1

TLC06 — Thu, 12 May 2005 08:55:57 GMT

Stephen,

Attached is the screen capture on missing disk. Any clue what is that?

Thanks.

Re: DL360 G3 - RAID migration from RAID0 to RAID1

Stephen Kebbell — Thu, 12 May 2005 09:41:39 GMT

Hi,

no idea, sorry. I never use Dynamic Disks. Did you try to create a software mirror before?
What happens if you rescan your disks?`

Regards,
Stephen

Re: DL360 G3 - RAID migration from RAID0 to RAID1

Colin_29 — Fri, 13 May 2005 02:23:55 GMT

If you first added the drive as RAID0 widows would have seen it. Now you have migrated it to RAID1, it cannot. Don't forget that the RAID is hardware based and is hidden from the OS, it just sees logical drives.

This being the case, then you can just right click and delete. See the following link for more information on removing a missing dynamic disk: http://www.microsoft.com/technet/prodtechnol/windowsserver2003/library/ServerHelp/68cf56c9-9489-41a2-a393-7e986de36870.mspx

Colin