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1 mirrored disk to serve as fallback on DL360 G4

Julius Razon
Occasional Visitor

1 mirrored disk to serve as fallback on DL360 G4

Hi,

I have DL360 G4 using Smart Array controller & running Windows Server 2003.

I'm thinking to do the following before doing a major software upgrade:

1) shutdown the server
2) unplug 1 mirrored disk
3) startup the server

* unplugged disk - will serve as my fallbak if ever software upgrade is not successful

* afterwards, plug it back if upgrade is successful.

Any of you have tried this method?

Comments are very much welcome.

Thanks in advance.
7 REPLIES
Oleg Koroz
Honored Contributor

Re: 1 mirrored disk to serve as fallback on DL360 G4

It's a common practice if you don't have other choose for backup
Julius Razon
Occasional Visitor

Re: 1 mirrored disk to serve as fallback on DL360 G4

Can this be applied to Linux operating system also?
Ruslan
Respected Contributor

Re: 1 mirrored disk to serve as fallback on DL360 G4

Yes, it's possible as SA create hardware mirror...
RaMpaNTe
Trusted Contributor

Re: 1 mirrored disk to serve as fallback on DL360 G4

It it possible but not trustable though...

Anyway make sure you have a backup... nobody knows what could hapen... BTW we at HP don't support that kind of TS so please take all the previous actions.


RaMpaNTe
You heve a question... I have an aswer!!!
Steven Clementi
Honored Contributor

Re: 1 mirrored disk to serve as fallback on DL360 G4

It really depends on the application(s) running on the server. It is absolutely doable and it works, but for some apps and services (like AD) you do NOT want to reboot with the pulled drive if the system has been "under the knife" for too long.

Agreed to the not supported comment, but have done it in the past in a pinch.


Another thing you can do is place the pulled drive into a "test" server, boot it up and run your updates there. If they work there, it is likely that they will work in the real world.


Steven
Steven Clementi
HP Master ASE, Storage and Clustering
MCSE (NT 4.0, W2K, W2K3)
VCP (ESX2, Vi3, vSphere4, vSphere5)
RHCE
NPP3 (Nutanix Platform Professional)
Julius Razon
Occasional Visitor

Re: 1 mirrored disk to serve as fallback on DL360 G4

BTW, how does the synchronization works? disk-to-disk or file-to-file
Oleg Koroz
Honored Contributor

Re: 1 mirrored disk to serve as fallback on DL360 G4

For the question Supported or not supported

What would be difference between Replace and Upgrade HDD for HW itself?
See attachment


That mind Supported

What is really not supported is pulling drive out while it active

HP Smart Array 6i Controller User Guide
Part Number 347914-001