Del:

We have been using these settings as our defaults.  Is our TCPWINDOWSIZE
too large?

RESOURCEUTILIZATION 2  (we increase this up to 10 for some WAN backups)
TXNBYTELIMIT 2097152
TCPNODELAY YES
TCPBUFFSIZE 512
TCPWINDOWSIZE 2048
LARGECOMMBUFFERS YES

Also we never use compression because our storage folks believe it will
foul up the de-duplication that happens on our Data Domains??

On Mon, Mar 20, 2017 at 9:11 PM, Del Hoobler <hoobler AT us.ibm DOT com> wrote:

> Hi Ben,
>
> Here are some items to get you started:
>
>
> Backup-Archive client with limited, high latency network (WAN backups):
> ===============================
> TCPWINDOWSIZE           512
> RESOURCEUTILIZATION     4
> COMPRESSION             Yes
> DEDUPLICATION           Yes
> ENABLEDEDUPCACHE        Yes
>
> Tip:  Do not use the client deduplication caching for applications that
> use the IBM Spectrum Protect API.  Refer to section 1.2.3.2.1 for
> additional details.
>
>
> Backup/Archive client or Client API with limited network (Gigabit LAN
> backups):
> ===============================
> TCPWINDOWSIZE           512
> RESOURCEUTILIZATION     10
> COMPRESSION             Yes
> DEDUPLICATION           Yes
> ENABLEDEDUPCACHE        No
>
>
> Backup/Archive client or Client API with high speed network (10 Gigabit +
> LAN backups)
> ===============================
> TCPWINDOWSIZE           512
> RESOURCEUTILIZATION     10
> COMPRESSION             No
> DEDUPLICATION           No
> ENABLEDEDUPCACHE        No
>
>
> Tip:  For optimal data reduction, avoid the following client option
> combination:
>
> COMPRESSION     Yes
> DEDUPLICATION   No
>
>
>
>
> Del
>
> ----------------------------------------------------
>
> "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 03/15/2017
> 02:39:04 PM:
>
> > From: "Alford, Ben" <balford AT UTK DOT EDU>
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Date: 03/15/2017 02:39 PM
> > Subject: Best Practices/Best Performance SP/TSM B/A Client Settings ?
> > Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
> >
> > I've looked at the IBM Blueprint documents but may have missed what
> > I was looking for - the Best Practices for Best Performance for TSM
> > B/A client settings.    As we move from 6.4 to 7.x or 8.x clients
> > before the 6.4 EOL, we are looking to test with the current client
> > settings optimized for things like TCPBUFFSIZE, TCPWINDOWSIZE,
> > TXNBYTLIMIT, etc., etc.
> > Thanks!
> >
> > Ben Alford
> > IT Manager, Office of Information Technology
> > Systems: Shared Services
> >
> > The University of Tennessee
> >
>