***
Dave O'Brien
NIH Contractor
From: IBM Mainframe Discussion List [ibm-m...@bama.ua.edu] On Behalf Of L D
Owen [ldowen2...@yahoo.com]
Sent: Tuesday, March 10, 2009 3:58 PM
To: IBM-MAIN@bama.ua.edu
Subject: Re: DFHSM Issue - Critical
I agree with don't
I agree with don't cancel as many bad things can and do happen.
When you hold RECYCLE, it will finish the tape it is currently recycling, and
if
I'm not wrong, it will finish the entire volume chain (if the volume was part
of
a chain). Try HOLD RECYCLE EOD instead as it will hold at the end
Storage Management
Remedy Queue: tis-hs-mstg
(602) 977-5154
-Original Message-
From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On
Behalf Of Jacky Bright
Sent: Wednesday, March 04, 2009 7:47 AM
To: IBM-MAIN@bama.ua.edu
Subject: Re: DFHSM Issue - Critical
But when DFHSM
Hello,
Since last 2-3 days observing very strange behaviour of DFHSM. In the
midnight DFHSM is not responding to any migration and recall request. Its
started task DFHSM is not taking any CPU.
But it was responding to all DFHSM QUERY commands. Tried cancelling ACTIVE
REQUESTS using CANCEL USER
First,
The CDS, OCDS, Journal backups will quiesce DFHSM during that time. Go back
through SYSLOG and see when they start and stop. It just might be normal
processing and you just need to wait until the backups of the CDS etal
complete.
How long do your backups take? Are you waiting long
But when DFHSM is hanging then even for 2 hours intermittently in response
to QUERY ACTIVE command gets status CDS Backup in progress. When DFHSM is
cancelled and restarted then backup completes in few minutes. Can CDS Backup
run concurrently with other DFHSM operations ?
Jacky
On 3/4/09,
BTDTGTTS,
This is what has been colloquially known as a 'fatal embrace' and is not
just limited to DFHSM.
In my experience this has been caused by multiple HSM functions running
in parallel with w/DFHSM CDS backup.
The CDS backup enqueues exclusively and seperately on all three CDS's
and the
List [ibm-m...@bama.ua.edu] On Behalf Of
Staller, Allan [allan.stal...@kbm1.com]
Sent: Wednesday, March 04, 2009 10:04 AM
To: IBM-MAIN@bama.ua.edu
Subject: Re: DFHSM Issue - Critical
BTDTGTTS,
This is what has been colloquially known as a 'fatal embrace' and is not
just limited to DFHSM.
In my
I have modified my schedule to do the same. The CDS backups rarely (with
the exception of SSM) occur during concurrent migration and backup.
BTW, I have also had this situation occur when a recycle was processing
concurrent w/CDS backup.
In my most recent case, a multi-vol recycle was running
Discussion List [ibm-m...@bama.ua.edu] On Behalf Of
Staller, Allan [allan.stal...@kbm1.com]
Sent: Wednesday, March 04, 2009 11:24 AM
To: IBM-MAIN@bama.ua.edu
Subject: Re: DFHSM Issue - Critical
I have modified my schedule to do the same. The CDS backups rarely (with
the exception of SSM) occur during
...@bama.ua.edu] On Behalf Of
Staller, Allan [allan.stal...@kbm1.com]
Sent: Wednesday, March 04, 2009 10:04 AM
To: IBM-MAIN@bama.ua.edu
Subject: Re: DFHSM Issue - Critical
BTDTGTTS,
This is what has been colloquially known as a 'fatal embrace' and is not
just limited to DFHSM.
In my experience
Agreed. However the OP is the one that cancelled DFHSM.
snip
If it is a recycle impacting CDS Backups, the recycle can simply be
held. Recycle will then end pre-maturely and CDS Backup will proceed.
There should not be any need to cancel DFHSM in this instance.
/snip
NIH Contractor
From: IBM Mainframe Discussion List [ibm-m...@bama.ua.edu] On Behalf Of Jacky
Bright [jacky.bri...@gmail.com]
Sent: Wednesday, March 04, 2009 11:38 AM
To: IBM-MAIN@bama.ua.edu
Subject: Re: DFHSM Issue - Critical
Yes. Backing up directly to VTS
Of
Staller, Allan [allan.stal...@kbm1.com]
Sent: Wednesday, March 04, 2009 11:46 AM
To: IBM-MAIN@bama.ua.edu
Subject: Re: DFHSM Issue - Critical
Agreed. However the OP is the one that cancelled DFHSM.
snip
If it is a recycle impacting CDS Backups, the recycle can simply be
held. Recycle
) [C]
Sent: Wednesday, March 04, 2009 8:31 AM
To: IBM-MAIN@bama.ua.edu
Subject: Re: DFHSM Issue - Critical
If it is a recycle impacting CDS Backups, the recycle can simply be
held.
Recycle will then end pre-maturely and CDS Backup will proceed.
There should not be any need to cancel DFHSM
Questions:
1. how long does it take for the virtual tape to be recalled from the
stacked volume? or is that a native tape drive attached to the ATL of the VTS ?
2. i assume you're running HSM in a Sysplex: what are the values of CDSQ/CDSR?
- ravi.
On Wed, 4 Mar 2009 16:38:52 +, Jacky
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