ADSM-L

Re: backup to disk stg vs tape stg.

2015-10-04 17:13:40
Subject: Re: backup to disk stg vs tape stg.
From: Sotonyi Attila [mailto:sotonyi AT MAVINFORMATIKA DOT HU]
To: ADSM-L AT VM.MARIST DOT EDU
Hi,

There're additional parameters which you should try first:

In your client dsm.sys file set these parameters with their values:

Tcpbuffsize
Tcpwindowsize
Tcpnodelay
Largecommbuffers
Txnbytelimit

If it's not help, then you have to check the AIX network parameters
and pools and buffers. If you need additional help, just write.

=DCdv,
 S=F3tonyi Attila
 Certified TSM administrator
 M=C1V Informatika Kft.



------------------------------------------------------------
> Hi All,
> Hi All,

> I am running TSM 4.1 on aix server and DLT scallar 1000 library.
> I have a critical client that I would like to backup directly to the
> tape stgpool.
> The performance in that method are 8M/S network and 70K/S aggregated
> transfer rate.
> I would like to improve that performance to be at list 3M/S =
aggregated.
> I tried to work with the following performance parameters.

> SELFTUNETXNSIZE
> SELFTUNEBUFPOOLSIZE

> but with no success.

> I tried to backup the same client to a disk storage pool and the
> aggregated ware something like 4M/S.
> it's look like a performance problem but I don't know what parameter =
to
> change.


> Thanks in advance.
> Ofer Ccc.
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