Hi Del! Because of your mail down below I implemented TCPWINDOWSIZE 512 on the (LINUX) clients on our new TSM server with a directory containerpool, but the client logs are now filled with the following messages:
ANS5246W TCPWINDOWSIZE 512 is specified, but exceeds the maximum value allowed by the operating system. TCPWINDOWSIZE 244 will be used instead. What is you recommendation, from a performance perspective, in this situation? Thanks again for your help! Kind regards, Eric van Loon Air France/KLM Storage Engineering -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[email protected]] On Behalf Of Del Hoobler Sent: dinsdag 21 maart 2017 2:11 To: [email protected] Subject: Re: Best Practices/Best Performance SP/TSM B/A Client Settings ? 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" <[email protected]> wrote on 03/15/2017 02:39:04 PM: > From: "Alford, Ben" <[email protected]> > To: [email protected] > Date: 03/15/2017 02:39 PM > Subject: Best Practices/Best Performance SP/TSM B/A Client Settings ? > Sent by: "ADSM: Dist Stor Manager" <[email protected]> > > 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 > ******************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ********************************************************
