asked on

lun removal

hi guys

whats the best way to remove a LUN from my vmware environment ?

i tried to unpresent it , i then did a rescan and the logs went crazy with apd's etc and the LUN showed in active

whats the best way to do it?

coolsport00

I assume data is off of it? Where is the LUN created?...local storage or SAN? Typically, you can rt-click on it in your SAN Mgmt software/GUI and "destroy" it (delete it). If it's on your host or in vCenter, just rt-click on it and select 'Delete'. It will then be removed from your VMware infrastructure. ***BE WARNED: ALL DATA IS DELETED OFF THE DATASTORE, SO MAKE SURE ALL VMs/DATA IS MOVED TO A NEW LOCATION***

~coolsport00

ASKER CERTIFIED SOLUTION

Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

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mikeleahy

ASKER

does the LUN have to be empty before i remove it from esx ?

coolsport00

I think you'll only get warned about data being erased, but should still be able to remove it.

Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

No, not at all!

mikeleahy

ASKER

according to web you should mask the lun on esx etc, is that needed ?

Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

LUNs are normally masked on the SAN.

Zoned, Selective Presentation, Initiator Groups are all words which are used.

It prevents other Servers attaching to the storage and overwriting.

mikeleahy

ASKER

yeah i know but if i search the web - a vmware kb says you should mask it on the esx - reclaim paths etc.

Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)

See this kb if you want to mask on ESX

http://kb.vmware.com/kb/1009449

It depends on your storage infrastructure.

coolsport00

I have never done, nor needed to mask on my FC SAN/ESX host. All you need to do is what has been posted by @hanccocka and I.

mikeleahy

ASKER

it keeps saying that the LUN is in use - there is no vm on it . i moved it to antoher datastore

SOLUTION

coolsport00

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mikeleahy

ASKER

bingo - we have a winner

removed the link to the ISO and it removed fine

coolsport00

GREAT! :)