ADSM-L

Re: [ADSM-L] Scalability problems with expiration?

2017-10-11 09:05:57
Subject: Re: [ADSM-L] Scalability problems with expiration?
From: Hans Christian Riksheim <bullhcr AT GMAIL DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 11 Oct 2017 15:01:53 +0200
Thanks Zoltan. Time for an upgrade then.

Hans Chr.

On Wed, Oct 11, 2017 at 2:46 PM, Zoltan Forray <zforray AT vcu DOT edu> wrote:

> We hit the problem at 6.3.6 per this document
> <http://www-01.ibm.com/support/docview.wss?uid=swg1IT17642> which says:
>
> *After upgrading the server to 6.3.6.000 (or higher)  and 7.1.3 (or higher)
> expiration might "hang" on a node while expiring backup data only.
>  Expiration is not actually hung it is still processing but very slowly due
> to a non-optimized*
> *SQL/Select.   A change to this SQL/Select occurred between 6.3.5.0 and
> 6.3.6.0.   This code change was implemented in servers 6.3.6.0+ and 7.1.3.0
> to 7.1.7.   There have been no reported problems at 7.1.3 or above.*
>
> On Wed, Oct 11, 2017 at 8:35 AM, Hans Christian Riksheim <
> bullhcr AT gmail DOT com>
> wrote:
>
> > I have noticed that expiration suddenly takes a lot more time. The first
> > million objects are expired/deleted very quickly but it slows down to an
> > almost hang with the last 10%.
> >
> > The DB has reached 2 TB and server is 7.1.3.100. Any performance
> > enhancements in later levels?
> >
> > Hans Chr.
> >
>
>
>
> --
> *Zoltan Forray*
> Spectrum Protect (p.k.a. TSM) Software & Hardware Administrator
> Xymon Monitor Administrator
> VMware Administrator
> Virginia Commonwealth University
> UCC/Office of Technology Services
> www.ucc.vcu.edu
> zforray AT vcu DOT edu - 804-828-4807
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