Link to home
Start Free TrialLog in
Avatar of Paul Walsh
Paul Walsh

asked on

VM Datastore spanning multiple Extents

Hi,

Our VM datastores use extents. One particular datastore uses two different extents to create the volume. Is it possible for the two extents to live on volumes  on separate SANS? If this is possible what happens if one of the SANS or the volume where the extent lives, is offline?

Cheers
Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Flag of United Kingdom of Great Britain and Northern Ireland image

Yes it is

Not recommended

Your datastore gets corrupted and goes offline

If you do this good accurate documentation is required to MAP datastore because we’ve had many EE VMware Admins or Storage Managers that have deleted LUNs that thought unused were an extent on another datastore

RESULT = CATASTROPHIC LOSS OF ALL VMS

you have been warned!!!
Avatar of Paul Walsh
Paul Walsh

ASKER

Cheers, when you mention corruption, if the VMs are powered off and the datastore goes offline, when both Sans / volumes are back live will the datastore then be back online and the VMs can be powered on safely or is the datastore lost?

Secondly if I move the running vms to another datastore, can I then delete the problem datastore and recreate on the same volume on the san without the Unneeded expansion onto the other extent? Hope that makes sense.

Cheers.
Paul
ASKER CERTIFIED SOLUTION
Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Flag of United Kingdom of Great Britain and Northern Ireland image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial