[gpfsug-discuss] TSM 6.x + Space Management + GPFS 3.4.xx (all linux) ... try again

[Jez Tucker]

Yup.

We're running svr 6.2.2-30 and BA/HSM 6.2.4-1, GPFS 3.4.0-10 on RH Ent 5.4 x64
At the moment, we're running migration policies 'auto-manually' via a script which checks if it needs to be run as the THRESHOLDs are not working.
We've noticed the behaviour/stability of thresholds change each release from 3.4.0-8 onwards.  3.4.0-5 worked, but we jumped to .8 as we were told DMAPI for Windows was available [but undocumented],  alas not.

I had a previous PMR with support who told me to set:
enableLowSpaceEvents=no
-z=yes on our filesystem(s)

Our tsm server has the correct callback setup:

[root at tsm01 ~]# mmlscallback
DISKSPACE
        command       = /usr/lpp/mmfs/bin/mmstartpolicy
        event         = lowDiskSpace,noDiskSpace
        node          = tsm01.rushesfx.co.uk
        parms         = %eventName %fsName

N.B. I set the node just to be tsm01 as other nodes do not have HSM installed, hence if the callback occurred on those nodes, they'd run mmstartpolicy which would run dsmmigrate which is not installed on those nodes.

tsm01 is currently setup as a manager-gateway node (very good for archiving up Isilons over NFS...)
mmlscluster
<snip>
  3   tsm01.rushesfx.co.uk        10.100.106.50    tsm01.rushesfx.co.uk        manager-gateway

>From my testing:

I can fill a test file system and receive the noDiskSpace callback, but not the lowDiskSpace.
This is probably related to the enableLowSpaceEvents=no, but support told me to disable that...

FYI. Follow PMRs #31788,999,866 and 67619,999,866

Jez

From: gpfsug-discuss-bounces at gpfsug.org [mailto:gpfsug-discuss-bounces at gpfsug.org] On Behalf Of Scott Fadden
Sent: 21 March 2012 18:00
To: gpfsug main discussion list
Cc: gpfsug main discussion list; gpfsug-discuss-bounces at gpfsug.org
Subject: Re: [gpfsug-discuss] TSM 6.x + Space Management + GPFS 3.4.xx (all linux) ... try again


What do you want to achieve? Threshold based migration?

Scott Fadden
GPFS Technical Marketing
Desk: (503) 578-5630
Cell: (503) 880-5833
sfadden at us.ibm.com<mailto:sfadden at us.ibm.com>
http://www.ibm.com/systems/gpfs

From:

Jez Tucker <Jez.Tucker at rushes.co.uk<mailto:Jez.Tucker at rushes.co.uk>>

To:

gpfsug main discussion list <gpfsug-discuss at gpfsug.org<mailto:gpfsug-discuss at gpfsug.org>>

Date:

03/21/2012 09:50 AM

Subject:

[gpfsug-discuss] TSM 6.x + Space Management + GPFS 3.4.xx (all        linux) ... try again

Sent by:

gpfsug-discuss-bounces at gpfsug.org<mailto:gpfsug-discuss-bounces at gpfsug.org>


________________________________



Is anyone using this configuration?

If so, can you confirm your settings of:

enableLowSpaceEvents
mmlscallback (re: lowSpace/noDiskSpace)
mmlscluster | grep <tsm node name>

It seems support and the developers cannot decide how this should be setup (!!)

Ta
---
Jez Tucker
Senior Sysadmin
Rushes

GPFSUG Chairman (chair at gpfsug.org<mailto:chair at gpfsug.org>)


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