Pooooor TDP for Exchange Performance via SAN
2015-10-04 17:10:42
Hi everybody!=20
I'm sitting here looking at my customers environment and =
wonder=20
how TDP for Exchange=20
is sooooo slow via SAN.=20
We have a complete Win2000 environment with all the newest=20
patches installed=20
(Server 4.2.1.12, StorageAgent 4.2.1.12, API 4.2.1.30, TDP =
Exch.=20
2.2)=20
We share two drives of a 3584 library via SAN data gateway=20
(newest firmware).=20
The backup via LAN (!) is nearly as fast as it could be (up to =
12=20
MB/s without compression).=20
But the backup via SAN ist very slow.=20
It starts slow (at 1200 KB/s) and slows down to 800 KB/s.=20
Does anyone have recommendations tuning the dsm.opt-file or=20
tdpexc.cfg-file...=20
my dsm.opt-file:=20
tcpwindowsize 63=20
tcpbuffsize 32=20
txnb 25600=20
my tdpexc.cfg-file:=20
buffers 4=20
buffersize 2048=20
... or any other ideas?=20
(Are there any rules-of-thumb how to tune this options?)=20
Thanx in advance,=20
Karsten Huettmann, c.a.r.u.s. IT AG, Germany
-----
Mit freundlichen Gr=FCssen / with regards
Mit freundlichen Gr=FCssen / with regards
Karsten H=FCttmann
----------------------------------------------------------
Karsten H=FCttmann
Karsten H=FCttmann
c.a.r.u.s. Information Technology AG
Advanced System Center
Bornbarch 9, 22848 Norderstedt, Germany
E-Mail: karsten.huettmann AT carus DOT de
Firma: +49.40.51435.3231
Mobil: +49.171.7634388
Fax: +49.40.51435.1111
|
|
|