We help IT Professionals succeed at work.

Can I rebuild raid array with Dell EMC OpenManage Server Administrator on non dell certified drives without shutting down the server?

Dana D
Dana D asked
on
227 Views
Last Modified: 2019-03-26
I have a dell PowerEdge R610 physical server (W/Perc H700 Raid Controller) that is setup as an esxi 6.0 host. The 3 internal disks are setup in raid 0 for some reason and i want to know if i could swap the prefailed drive with a new one (which i already know will kill the raid 0 array configuration) will i be able to rebuild the raid array to be raid 1 with Dell EMC OpenManage Server Administrator (OMSA) without shutting down server? The hard drives are not dell certified disks.
Comment
Watch Question

andyalderretired saggar maker
CERTIFIED EXPERT
Distinguished Expert 2019

Commented:
If it is booted from SD card then yes you can still run OMSA and reconfigure the array however you want. If it is booted from the array then it may crash although VMware is very tolerant of that as it runs the hypervisor from RAM.

If you are going from 3 disk RAID 0 to 2 disk RAID 1 you don't even need to physically remove the dodgy disk.
Philip ElderTechnical Architect - HA/Compute/Storage
CERTIFIED EXPERT

Commented:
You could add a new disk and migrate the current RAID 0 array to a RAID 5 array to give some protection for the data.

The catch with RAID 5 parity will be the on-board cache setup. So long as it's non-volatile enable the Write-Back setting to gain a substantial amount of I/O performance. Without it, things would crawl.

Oh, and make sure the backups are good and bare metal/hypervisor restore tested just-in-case. ;)
Tom CieslikIT Engineer
CERTIFIED EXPERT
Distinguished Expert 2017

Commented:
You can't rebuild Raid 0 to Raid 1.
If you still have access to Raid 0  volume,and you have free slots for hot swap disks, put few new and create new Raid 1, then copy over data from Raid 0 to Raid 1.

You don;t have to shut down server
Dana DIT Consultant
CERTIFIED EXPERT

Author

Commented:
Well im assuming that once i pull the prefailing disk it will crash the raid 0 array (losing all date - which is fine as there is no production data on it and its also been backed up) - is this correct? If so then dont i need to destroy the raid 0 first before enter the new disk and then build the raid 1 with my 3 working disks?
andyalderretired saggar maker
CERTIFIED EXPERT
Distinguished Expert 2019

Commented:
You still need to delete that array to remove the metadata from the other disks and from the controller. Just because that array crashes does not mean it is deleted from the disks or the controller, in fact if you powered off and reinserted the disk you would see the data again when you powered on.

You cannot have RAID 1 with 3 disks, so either RAID 1 plus hot spare or RAID 5 as I don't think that controller supports RAID 1E.
Tom CieslikIT Engineer
CERTIFIED EXPERT
Distinguished Expert 2017

Commented:
Yes,, if you want just replace disk and create new raid,,, just simply delete raid using Dell Open Manage Server Administrator, then replace drives and create new Raid 1 + Spare or Raid 5,,,

Server restart is not required.
andyalderretired saggar maker
CERTIFIED EXPERT
Distinguished Expert 2019

Commented:
Only if the server is booted from something else such as SD card, if it was booted from this array then you will wipe out the hypervisor.
Dana DIT Consultant
CERTIFIED EXPERT

Author

Commented:
I ended up just retiring this server because we had another monster server to handle the load. Thank You All for your help!
IT Consultant
CERTIFIED EXPERT
Commented:
This one is on us!
(Get your first solution completely free - no credit card required)
UNLOCK SOLUTION
Tom CieslikIT Engineer
CERTIFIED EXPERT
Distinguished Expert 2017

Commented:
Dana D, can you please explain your choice for solution ?

Gain unlimited access to on-demand training courses with an Experts Exchange subscription.

Get Access
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Empower Your Career
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE

Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Unlock the solution to this question.
Join our community and discover your potential

Experts Exchange is the only place where you can interact directly with leading experts in the technology field. Become a member today and access the collective knowledge of thousands of technology experts.

*This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

OR

Please enter a first name

Please enter a last name

8+ characters (letters, numbers, and a symbol)

By clicking, you agree to the Terms of Use and Privacy Policy.