On Tue, Feb 21, 2017 at 10:19 AM, Gianluca Cecchi <gianluca.cec...@gmail.com > wrote:
> Hello, > currently I have a cluster of 3 hosts where each one has FC SAN > connectivity to 4 LUNs: 3 are already configured as storage domains (1TB, > 2TB, 4TB), one is free, not allocated. > See here for screenshot: > https://drive.google.com/file/d/0BwoPbcrMv8mvRVZZMTlNcTQ5MGs/ > view?usp=sharing > > At the moment the command "multipath -l" run on hosts shows all the 4 LUNs. > > Now I want to do 2 things at storage array level: > > - remove the 2TB storage domain LUN > - remove the 20Gb LUN not yet allocated > > What is the correct workflow, supposing I have already emptied the 2TB > from VM disks ad such? > Select 2Tb SD, then Datacenter subtab, then "maintenance", detach" and at > the end "remove"? > Yes, these should be your first steps. > I think I continue to see 4 LUNs at this point, correct? > Yes. > Now I proceed with removal of lun at storage array level? > > Should I select an SD line and then "Scan disks" to see refresh the SAN > and see in multipath only 2 of them at the end? > Or any manual command at host level before removal from array? > After removing the storage domains you should be able to remove the luns. I am not extremely familiar with the multipath and low-level scsi commands but I would try the scan disks button and if the luns are not gone from your host you can manually remove them. I think that involves removing the device from multipath (multipath -d) and deleting it from the scsi subsystem. Thanks in advance > Hope this helped you.
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