It would also be helpful to know what revision levels your server is at. Do
you have any 6.5 service packs applied? Any of the TSA or TCP updates? What
settings are you using when you load tsafs (look in sys:\etc\sms\tsa.cfg), and
are you using "ResourceUtilization" or any other performance setttings in your
dsm.opt? You might also want to check your server's tcp settings to make sure
that TCP Delayed Ackknowlegement is off.
As has been mentioned already, it's also very possible that there is something
wrong in the nic/switch setup. There is no "always right" answer as to how
they should be configged. Some nic/switch combos work best with both
hardcoded, some with both on auto, and some with one hardcoded/one on auto. I
would also make sure you're running the newest version of the nic driver.
Troy Frank
Network Services
University of Wisconsin Medical Foundation
608.829.5384
>>> cameron_ambrose AT ENTERPRISESERVICES.COM DOT AU 10/11/2005 6:30:04 AM >>>
Guys,
Thanks for the info, I'll double check the network settings. Though I
have changed the COMMtimeout value from 180secs to 1800 secs as suggested
by Richard Simms, which has stopped the session restart error messages and
infact the backup seems to be error free.
As for the speed, I'm still leaning towards a tsm netware client/
Netware OS issue. I say this because last night I performed a test backup
on a 10gig volume (50% full) that hadn't had any changes and it still took
10 hours to scan only 80000 odd files. The Client itself hovered around
87-89% utilisation. When this server was netware 6.0 it used to flatline on
100% when performing a backup with the same slow performance. We thought
once we'd upgraded to 6.5 with the additional memory required with 6.5,
that performance would improve. Unfortunately it hasn't yet. Has anyone
experienced this before?
Regards Cameron
Richard van
Denzel
<RvanDenzel@SLTN. To
NL> ADSM-L AT VM.MARIST DOT EDU
Sent by: "ADSM: cc
Dist Stor
Manager" Subject
<[email protected] Re: Slow backup performance
.EDU>
07/10/2005 07:25
PM
Please respond to
"ADSM: Dist Stor
Manager"
<[email protected]
.EDU>
Oops, I don't know if there is an iperf for Netware.
Do other clients have the same problems from the network the NW server
is on? Also you did not specify what kind of network is between server
and client(s) (100Mb/1000Mb)?
Met vriendelijke groet, With kind regards,
Richard van Denzel.
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Leigh Reed
Sent: vrijdag 7 oktober 2005 10:37
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Slow backup performance
If you have already checked this and it is very obvious to you, please
don't be offended, but it has been a very common occurrence throughout
the life of network backups.
Have you checked that your NIC is hard coded to 100MB Full Duplex and
your switch is also the same. You could also check if your switch is
showing any CRC errors. Lastly, try an FTP from client server to TSM
server to establish if the network is performing outside of TSM.
Again, if I'm teaching you to suck hen produce, apologies.
Leigh
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Cameron Ambrose
Sent: 07 October 2005 07:42
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L]
Hello,
We're currently experiencing backup failures/extreme slowness on a
Netware 6.5 SP2 server
TSM Client 5.3.0
TSM Server 5.2.0
TSA's up to date as recommended by Client Doco
Client Logs
10/05/2005 14:43:19 ANS1809W Session is lost; initializing
session reopen procedure.
10/05/2005 14:43:19 ANS1809W Session is lost; initializing
session reopen procedure.
10/05/2005 14:44:15 sessRecvVerb: Error -50 from call to
'readRtn'.
10/05/2005 14:44:15 ANS1999E Incremental processing of
'SYS:'
stopped.
10/05/2005 14:48:24 ANS1999E Incremental processing of
'INF:'
stopped.
10/05/2005 14:48:25 ANS1017E Session rejected: TCP/IP
connection failure
Server Logs
10/05/05 14:39:53 ANR0481W Session 2177 for node
SERVERNAME (NetWare)
terminated - client did not respond within
180 seconds.
10/05/05 14:41:10 ANR0406I Session 2178 started for
node
SERVERNAME
(NetWare) (Tcp/Ip xxx.xxx.xxx.xxx(19578)).
Currently we have had a backup running for 24 hours and all that
has been transfered is 4.19 gig and 255,000 files scanned. Has anyone
else experienced similar issue's
Any help on this would be appreciated
Regards Cameron
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