fsadm resize fails with errno 16

[Rebecca Hounschell]

I am trying to reduce a logical volume from 22gb to 8gb using fsadm. The server is an HP9000,N class with 11.0 OS. I have online JFS
( B3929BA B.11.00 HP OnLineJFS (Advanced VxFS) but it is failing with the following error msg:
mbhpu08::rbhounsc[124] > sudo fsadm -b 8000M /u03
fsadm: /etc/default/fs is used for determining the file system type
fsadm: /dev/vg05/rlvol1 is currently 29696000 sectors - size will be reduced
fsadm: attempt to resize /dev/vg05/rlvol1 failed with errno 16
Can someone please tell me what my problem could be? I have looked in the knowledgebase but find only "extending" failing on 10.20.

Thank you,
Rebecc

[Tom Geudens]

Hi Rebecca,
I haven't looked at the actual error yet, but did you do a defrag of the filesystem first ? Options -E -e -D -d of the fsadm command.

Regards,
Tom

[T G Manikandan]

errno 16 is

#define EBUSY 16 /* Mount device busy

The volume you are trying to reduce might be still used by some processes.

check using fuser to find whether the volume is still used.

THanks

[Sanjay_6]

Hi Rebecca,

Instead of trying to reduce the size of the lv, take a backup of the filesystem, unmount and remove the lv and recreate the lv with the desired size, do a newfs, mount it and then restore the data.

Hope this helps.

regds

[Pete Randall · Accepted solution]

Sanjay,

What's the point of having Online JFS if you're going to do it the old fashioned way, anyway?

Pete

[T G Manikandan]

Try umounting the file system.
do a fsck on the file system
Again try using fsadm.

Thanks

[Rebecca Hounschell]

Yes, I did the fsadm -d /u03 first. I failed to state in the original message that this is on an autoraid. Would the raid have anything to do with my problem?

Rebecca

[Dietmar Konermann]

Hi, Rebecca!

Maybe you are hitting the VxFS design limitation described in KBRC00006692.

In this case you need to the job the old fashioned way.

The shrinking algorithms were changed by Veritas for VxFS 3.3, so installing this on your 11.00 system and upgrading to lfs ayout 4 would be a long-term solution.

Regards...
Dietmar.

[Sanjay_6]

Hi Rebecca,

Try this link,

http://support1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000062908240

Hope this helps.

Regds

[S.K. Chan]

This has nothing to do with the autoraid. I have never used OnlineJFS to reduce a FS simply because I've experience a few failure. It works well if you want to increase the FS on-the-fly but not so for FS reduction. So sometimes the old fashion way works best (in your case).

[Uday_S_Ankolekar]

Hello Rebecca,

This error is because the file system you want to increase is busy with some process. Is it possible for you to unmount the file system and mount it back then try fsadm??

-USA..