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How to remove reservation keys on VCS disks

Created: 20 Feb 2013 | 5 comments

Dear All,

I would like to remove reservation keys on VCS disks because I want to reclaim those disks. I have tried vxfenadm with different options but no lucky

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Sumit M Sharma's picture


Could you please go over the following article and let us know if you still has any issues removing the reservations on VCS disks.



jdangelo_symc's picture

You will want to focus on the vxfenclearpre utilitly listed in the Article referenced by Sumit.

Thokozani Mabaso's picture

Hello, it is trying to delete the keys on the Fencing Disk Group. The following disks are used for I/O fencing disk group.

hitachi_vsp0_04fa auto:cdsdisk    -            (fenc_dg)    online thinrclm
hitachi_vsp0_04fb auto:cdsdisk    -            (fenc_dg)    online thinrclm
hitachi_vsp0_04f9 auto:cdsdisk    -            (fenc_dg)    online thinrclm

I want to reclaim the disk below. Need to know how to remove the reservation key before reclaiming the LUN's from the storage level.

hitachi_vsp0_04b7 auto:cdsdisk    -            -            online thinrclm
Gaurav Sangamnerkar's picture

Simple point here, you are trying to clear the keys from coordinator disks,

A simple answer to that, if you shutdown fencing ofcourse after shutting down VCS completely ... once the fencing is down & module is unloaded, it should automatically clear the keys from fencing disks..

# hastop -all

# /etc/init.d/vxfen stop

# modunnload -i <mod_id_for_vxfen>    (check module ID with modinfo command)

post above steps, keys should be cleaned.

If it were data disks, I would go with procedure mentioned by Jubin ..


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