Learn how to a build a cloud-first strategyRegister Now

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 505
  • Last Modified:

Convert Software to Hardware RAID

Our HP hardware RAID controller died in an ML350-G3.  I managed to hook up a SATA drive and restore the OS to the system - worked fine.  As there was going to be a delay in getting a replacement controller, I inserted a 2nd SATA drive, set them up as dynamic drives and then created a software mirror - this has been working fine for a number of weeks

I now have the replacement RAID controller & have set up a fresh mirrored blank array on two SAS discs.  Any ideas what will happen when I clone (Norton Ghost) the SATA software raid OS onto the SAS array?  Will Windows (SBS2003) have a hissy-fit because there are no dynamic drives?  I also have the option to use Symantec System recovery but I suspect it too will try to bring over the dynamic drives.

Any pointers before I try this?

Thanks, Ian
0
blueskycomputing
Asked:
blueskycomputing
2 Solutions
 
Krzysztof PytkoActive Directory EngineerCommented:
I'm not sure if it would work. I would suggest to create ASR diskette and full server backup. Then restore it from ASR diskette. I think it's more secure. But remember also about FULL SERVER backup :)

Create ASR diskette
http://www.windowsitpro.com/article/windows-xp2/how-can-i-create-an-automated-system-recovery-asr-backup-.aspx

Restore ASR backup
http://www.ehow.com/how_5183410_restore-asr-backup.html
0
 
DavidCommented:
Yes.  Don't waste your time.
0
 
FDiskWizardCommented:
Ugly stuff. You could call HP if it has a service contract. Just tell tech support what you did and if they have any recommendations... It can't hurt. They are well versed in SCSI controllers and what they are capable of.
What's on this server? Could you possibly just shut it down, build the new array from scratch, and migrate data from the stand alone disc?
0
Nothing ever in the clear!

This technical paper will help you implement VMware’s VM encryption as well as implement Veeam encryption which together will achieve the nothing ever in the clear goal. If a bad guy steals VMs, backups or traffic they get nothing.

 
andyalderSaggar makers bottom knockerCommented:
You can break the mirror and convert back to basic, MS say you can't convert from dynamic to basic and then give instructions on how to do exactly that here - http://support.microsoft.com/kb/913964

Be sure you've got a good backup first of course although you'll have a probably good copy of the data on the disk you've got from splitting the mirror.
0
 
Casey HermanCommented:
Interesting bit there. Your clone would be seamless if that trick works. I would get a good backup, go with andyalder's method to fracture and revert to basic.

Just my .02
0
 
blueskycomputingAuthor Commented:
Thanks everyone for swift replies.  

Andyalder: http://support.microsoft.com/kb/913964 says that "This process works only if you have not used any one of the new features of dynamic disks. These features include extending a partition or using software redundant array of independent disks (RAID). " so I'm wary of trying it, although I probably will once I've tested my restore points!

I've just tested Norton Ghost and it won't see my new array, so that's out.  Am now testing Symantec System Recovery, as I have nothing to lose other than time.  If it fails I can revert back to my software RAID and startover again.
0
 
andyalderSaggar makers bottom knockerCommented:
It's referring to RAID5 in that article plus mount points and dynamic extension ; mirroring doesn't really use advanced features of dynamic disks, especially after the mirror is broken.

ASR ought to work OK too, so will normal backup/restore.
0
 
blueskycomputingAuthor Commented:
Have just restored using Symantec System Recovery to the new SAS array - took around 20 minutes and the server has rebooted fine with no meddling.  In disc management, it's now showing as a basic discs - no mention of dynamic discs - strange but I'm obvioulsy glad it's worked in this way.

Thanks for the tips - I'm going to have a play around with making & breaking software RAID arrays now on a test server to see what happens.
0
 
blueskycomputingAuthor Commented:
Will report back once I've broken & repaired a software mirrored RAID as per andyalder's advice
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now