What else do you have on the SAN Data Gateway? Does the client connect to a switch that the SAN Data Gateway does or what? There has been a lot of discussion on this subject over the past weeks. It has always been the configuration of the SAN Data Gateway.
-----Original Message----- From: Karsten Huettmann [mailto:[EMAIL PROTECTED]] Sent: Monday, March 18, 2002 1:35 AM To: [EMAIL PROTECTED] Subject: Pooooor TDP for Exchange Performance via SAN Hi everybody! I'm sitting here looking at my customers environment and wonder how TDP for Exchange is sooooo slow via SAN. We have a complete Win2000 environment with all the newest patches installed (Server 4.2.1.12, StorageAgent 4.2.1.12, API 4.2.1.30, TDP Exch. 2.2) We share two drives of a 3584 library via SAN data gateway (newest firmware). The backup via LAN (!) is nearly as fast as it could be (up to 12 MB/s without compression). But the backup via SAN ist very slow. It starts slow (at 1200 KB/s) and slows down to 800 KB/s. Does anyone have recommendations tuning the dsm.opt-file or tdpexc.cfg-file... my dsm.opt-file: tcpwindowsize 63 tcpbuffsize 32 txnb 25600 my tdpexc.cfg-file: buffers 4 buffersize 2048 ... or any other ideas? (Are there any rules-of-thumb how to tune this options?) Thanx in advance, Karsten Huettmann, c.a.r.u.s. IT AG, Germany ----- Mit freundlichen Grüssen / with regards Karsten Hüttmann ---------------------------------------------------------- Karsten Hüttmann c.a.r.u.s. Information Technology AG Advanced System Center Bornbarch 9, 22848 Norderstedt, Germany E-Mail: [EMAIL PROTECTED] Firma: +49.40.51435.3231 Mobil: +49.171.7634388 Fax: +49.40.51435.1111
