Decommissioning a RHEV Storage Domain
I'm in the early stages of unpicking exported FC LUN's (virtual volumes) from a RHEV 3.5 environment. The target is to eventually remove the SAN unit providing the volumes.
Whats the best method to do this once the RHEV storage domain has been removed/destroyed.
I'm my experience, unexporting a device at the SAN layer seems to cause a panic at the RHEV layer as the host detects down paths, even if the device is not part of a domain anymore. Unpicking the multipath device from every hypervisor could also be troublesome as this is an arduous task manually, and a very dangerous task to script... and would have to be done within a short space of time as an "accidental" scsi-rescan would put them all back...
We have upto 12 hosts in each RHEV datacentre and hypervisors run RHEL 6.7 (not RHEV-H)
Wondering what approach others have taken to do this?
Responses
Hi James, as i am understand - rescan scsi always bring your devices back and you need remove this device from your RHEV infrastructure and this device does not used as FC RHEV storage domains? If so you need put each hypervisor to maintenance mode and remove SAN presentation from this host only then activate one and make this action on each hypervisor. Suppose it will be help.
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