ZFS resizing



Ask about System customization & performance, Workload management, I/O device configuration etc.

ZFS resizing

Postby jaggz » Mon Mar 18, 2013 9:12 pm

Hello,

i am just trying to understanding the methods adopted for resizing a ZFS dataset. The way I am thinking is about creating a new ZFS with larger allocation and do a repro from a old ZFS. Then Update the BPXPRMxxx if required and with an IPL.

Could someone shed light on the above.

Jaggz
User avatar
jaggz
 
Posts: 356
Joined: Fri Jul 23, 2010 8:51 pm
Has thanked: 8 times
Been thanked: 5 times

Re: ZFS resizing

Postby Robert Sample » Mon Mar 18, 2013 10:33 pm

I have successfully used OMVS command zfsadm grow for resizing zFS file systems. The advantage is there's no need to copy anything, but the disadvantage is that the aggregate will be placed in Quiesce status while the grow command is underway. However, this is usually not a very long period of time and hence there is not usually a major impact. Also, there is no need to update BPXPRMxx since the aggregate name doesn't change.
Robert Sample
Global moderator
 
Posts: 3720
Joined: Sat Dec 19, 2009 8:32 pm
Location: Dubuque, Iowa, USA
Has thanked: 1 time
Been thanked: 279 times


Return to System programming