Re: Performance again!!!
hello, no it couldn't, because we calculated it excluding the mounting time when the data started to be transfered and written to the tape Thx Sandra --- Fletcher, Leland D. [EMAIL PROTECTED] wrote: A comment about performance being 9 minutes to tape and 75 seconds to disk. Is it possible that most of the 9 minutes was tape mount and positioning time? Please respond to ADSM: Dist Stor Manager [EMAIL PROTECTED] Sent by:ADSM: Dist Stor Manager [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc: Subject:Performance again!!! Hello everybody, It seems like TSM performance problems will neer end!!! Here is the new problem: The customer is running TSM 4.2.1.0 on a Windows 2000 server machine . An IBM rack case 82XX which contains a Quantum DLT8000 tape drive is connected to the server. The driver version for the Quantum DLT drive is 1.5 and is installed on the W2K machine. We tried a backup of 350MB on the local server with the Windows 2000 Backup utility and it took us approximately 75 seconds . Next , we tried the same Backup from TSM using its Device Driver and it took us about 9 minutes . We tried switching TSM to use the Native device driver but still we got the same performance result . So we upgraded to 4.2.2 ; In the Device Manager for TSM,we can see that TSMSCSI.exe is upgraded to 4.2.2.25 and the ADSMSCSI.sys is 4.2.2.3 . The server has a version of 4.2.2.25 . Still , we obtained poor backup performance . We suspected that maybe it was a database bottleneck ( eventhough it is still empty) ; so we tried the same Backup using TSM but the destination was on the HardDisk. The performance was good and the backup finished within 75seconds . So, we can eliminate the database problem. Also, we noticed with version 4.2.2.0 that it is crashing frequently . It was exiting abnormally . On the site of tivoli, the latest version of TSM server is 4.2.2 . We do not have the 5.1 release . does anyone have a suggestion? thx a lot Sandra __ Do You Yahoo!? LAUNCH - Your Yahoo! Music Experience http://launch.yahoo.com http://launch.yahoo.com/ Lee Fletcher Network Project Integrator Ameren Callaway Plant 573-676-4106 [EMAIL PROTECTED] __ Do You Yahoo!? LAUNCH - Your Yahoo! Music Experience http://launch.yahoo.com
Re: Tuning TSM
Hello Ignacio,
I had performance problems with TSM too. (I still have
in another installation too :p) ... After fixing the
networks problems (to 100/full duplex) performance
was still poor.
I don't know what version you are using but in my case
I had to change the TCPWINDOWSIZE in the client
options file to 63 (default is 32) , and now I'm
backing up 11 GB in 1 hour which is pretty good ...
Hope it helps
Sandra
--- Ignacio Vidal [EMAIL PROTECTED] wrote:
Lindsey:
I've been walking around once and again about
networking configuration,
then with disk i/o performance, then with how is
configurated on disk
the storage pool (if it was in raid 5, or in raid 1
or in raid 10...).
Those servers are connected through gigabit ethernet
channels, and they
are offering from 50 to 75 MBytes/sec. I believe
that throughput is very
low, but Tivoli's people (here) insisted in other
factors (disk i/o,
configuration of raids, etc)
I'll try your reccomendation, I have not all
neccesary values from our
switches now.
Thanks
Ignacio
-Mensaje original-
De: lt [mailto:[EMAIL PROTECTED]]
Enviado el: Miircoles, 15 de Mayo de 2002 19:42
Para: [EMAIL PROTECTED]
Asunto: Re: Tuning TSM
Hi,
Be sure to set ALL parameters for the nic cards
correctly
to match the
ports on the switches.
Ensure that ALL 'no options' are set correctly
for your
environment.
Example:
AIX 433_ML_08:
100MB ethernet nic cards have the xmit/recieve
buffer pools
maxed out
100MB ethernet nic cards have the speed/duplex
set to match
switch ports
'no options' are set via an /etc/rc.{filename}
called via
/etc/inittab via:
rctunenet:2:wait:/etc/rc.tunenet /dev/console
21 #Tune
Network Parms
example:
/etc/rc.tunenet
if [ -f /usr/sbin/no ]
then
thewall=$(/usr/sbin/no -o thewall | awk '{
print $3 }')
if [ $thewall -lt 4096 ]
then
/usr/sbin/no -d thewall
else
print thewall is set to $thewall - left as is
fi
/usr/sbin/no -d thewall
/usr/sbin/no -d sb_max
/usr/sbin/no -o tcp_sendspace=$thewall
/usr/sbin/no -o tcp_recvspace=$thewall
/usr/sbin/no -o udp_sendspace=64000
/usr/sbin/no -o udp_recvspace=64000
/usr/sbin/no -o net_malloc_police=32768
/usr/sbin/no -o tcp_mssdflt=1452
/usr/sbin/no -o ipqmaxlen=150
/usr/sbin/no -o rfc1323=1
fi
print Network parameters tuned...
By allowing AIX_ML_08 to figure out the best
settings for
thewall/sb_max, no -d thewall/sb_max, I do not
have to go
thru the issue
of calculating it anymore!!!
Having gone thru the above scenario, my 100MB
ethernet cloud
performs
at, a minimum, 10MB/sec. A lot of the network
traffic is logged at:
11MB/sec.
We are now implementing a GIG ethernet network
and I am
looking forward
to working with it as well.
HTH.
Mr. Lindsey Thomson
BLDG:042/2F-065 IMA: 0422F065
11400 Burnet Rd., Austin, TX 78758
off) 512) 823 6522 / (TL) 793 6522
I never waste memory on things that can easily be
stored
and retrieved from elsewhere.- Albert
Einstein
Blessed is the nation whose God is the Lord -
Psalm 33:12
Time is a great teacher, but unfortunately it
kills all
its pupils- Hector Berloiz
On Wed, 15 May 2002, Ignacio Vidal wrote:
Hi:
I'm managing a pretty small TSM installation
with 4 RS/6K
machines (2
6M1 and 2 6H1) running AIX 4.3.3 (ML9).
TSM software consists of the server (running in
a 6M1 - 7Gb
RAM), and
the clients running in the same machine and on
the others.
I4ve got the following situation:
- the total of data backed up is about 200Gb's,
- 4 servers are connected using gigabit ethernet
links (and
have 6Gb RAM
and 7Gb RAM each model 6H1 and 6M1 respectively)
- TSM uses a storage pool of 240Gb on FastT500
disks (those are
connected by FC channels)
- TSM uses a 3581 library (LTO) with 1 drive,
The fact is (for the same set of information):
When I do an archive backup operation with TSM,
the time
elapsed rounds
5 hours (TSM writes right to the tape).
When I do an incremental backup operation, TSM
uses about
6:30hs for it
(TSM writes to storage pool).
I'm looking for a rational approach to solve
this
problem: isn't it
more fast writing to storage pool (disk) that to
tape?
Anyone had the same performance problem?
Is it really a performance problem?
I would like some commentaries about this, I can
provide
some info about
the configuration of TSM and the AIX servers.
Regards
Ignacio
__
Do You Yahoo!?
LAUNCH - Your Yahoo! Music Experience
http://launch.yahoo.com
Re: Performance again!!!
Hello, we didn't try that one ... Is there any reason for the migration from disk to tape to be faster than backup from disk to tape? thx Sandra --- Zlatko Krastev [EMAIL PROTECTED] wrote: How long does the migration to tape take after backup to disk? Zlatko Krastev IT Consultant Please respond to ADSM: Dist Stor Manager [EMAIL PROTECTED] Sent by:ADSM: Dist Stor Manager [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc: Subject:Performance again!!! Hello everybody, It seems like TSM performance problems will neer end!!! Here is the new problem: The customer is running TSM 4.2.1.0 on a Windows 2000 server machine . An IBM rack case 82XX which contains a Quantum DLT8000 tape drive is connected to the server. The driver version for the Quantum DLT drive is 1.5 and is installed on the W2K machine. We tried a backup of 350MB on the local server with the Windows 2000 Backup utility and it took us approximately 75 seconds . Next , we tried the same Backup from TSM using its Device Driver and it took us about 9 minutes . We tried switching TSM to use the Native device driver but still we got the same performance result . So we upgraded to 4.2.2 ; In the Device Manager for TSM,we can see that TSMSCSI.exe is upgraded to 4.2.2.25 and the ADSMSCSI.sys is 4.2.2.3 . The server has a version of 4.2.2.25 . Still , we obtained poor backup performance . We suspected that maybe it was a database bottleneck ( eventhough it is still empty) ; so we tried the same Backup using TSM but the destination was on the HardDisk. The performance was good and the backup finished within 75seconds . So, we can eliminate the database problem. Also, we noticed with version 4.2.2.0 that it is crashing frequently . It was exiting abnormally . On the site of tivoli, the latest version of TSM server is 4.2.2 . We do not have the 5.1 release . does anyone have a suggestion? thx a lot Sandra __ Do You Yahoo!? LAUNCH - Your Yahoo! Music Experience http://launch.yahoo.com __ Do You Yahoo!? LAUNCH - Your Yahoo! Music Experience http://launch.yahoo.com
TSM server on a NAS device
Hello again, I've read somewhere that it's possible to install TSM server on a NAS system but only to perform local backups ... I can't find this again!!! All the papers I'm finding put the TSM server on another machine... Does anyone know if NAS support a server to be installed on it? thx a lot Sandra __ Do You Yahoo!? LAUNCH - Your Yahoo! Music Experience http://launch.yahoo.com
NAS backup
Hi all, I'm getting back again with a performance problem !! TSMServer 4.2.1 WIN2k TSM client 4.2.1 WIN2k- NAS system I want to perform a backup of the NAS on a DLT8000 tape. I am having performance problems ... I tried a backup of a sample of 300M. Using windows backup utility it takes 1 min to complete and by using TSM it takes 9 min!!! This backup has been performed locally Also , I tried using first the driver of the DLT8000 tape as detected by TSM but still I was getting a poor backup performance so I configured TSM to use the native device driver . Same result . Can you offer any advice? oh and I have another question. I read that TSM server can be installed on the NAS only to backup locally the NAS. Is that correct? and can I have the tape linked to the NAS and the server on another box? hope you can help me on this regards, Sandra __ Do You Yahoo!? LAUNCH - Your Yahoo! Music Experience http://launch.yahoo.com
Using stgpool without physical connection
Hi all, is it possible to use a tape drive even if it's not physically connected to the server?? thx you Sandra __ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com
Strange tape behaviour !!!
Hi all, first I have to thank all those who replied to my previous qustions ... Very strange tape behaviour I need to report. I perform a backup directly on tape. What is sometimes happening is that TSM decides the tape is full and marks it as unavailable!!! And the tape is just at 15% of its capacity!! Did anyone had this kind of problem? thx you, Sandra __ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com
TSM Reporting tool
Hi all, do you know if there's any reporting tool integrated with TSM? The customer doesn't want to install TDS ... thx you Sandra __ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com
Recovering from a disaster ....
Hello everybody, I have one more question ... is it possible to recover from a disaster just by having the TSM database backup and our data backup on tapes? I've been reading about the Disaster Recovery Manager and if I got it right, I would need to have copy storage pools to recover from disaster? thx for helping ... Sandra __ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com
Re: Recovering from a disaster ....
Thx a lot Dwight. That's exactly what I needed to know :) --- Cook, Dwight E [EMAIL PROTECTED] wrote: OK, I've been working with TSM (ADSM) for about 6 years now and you can call me cheap but I never (personally) though DRM was worth the money. We do operate in a unique environment here so I shouldn't say that DRM has no place in the market, it is just that I was doing DRM before DRM came out and once it did I couldn't justify the cost just to replace all that I had done over the years. We don't really run with copy storage pools... our TSM servers are located offsite to the production boxes that they backup so backups are effectively offsite as soon as they are created. We also deal with so much data across our 10 TSM servers on a daily basis that we would have to make them 20 if we were to copy all the data on a daily basis, and that just isn't going to happen. Now what sort of disaster am I protecting against ? Total loss of environment due to hardware failure. Not really counting fire, flood, water, etc... If my actual server goes dead, AS LONG AS I HAVE MY ATL, well at least the tapes, I'm OK. So to answer your question, almost yes. You need your db backup (from tape, disk, somewhere), you need definitions of your data base log files (I always allocate them the same size as they were), the device configuration file is nice (just about necessary). With that info you can get back your environment as long as you have your tapes. Dwight E. Cook Software Application Engineer III Science Applications International Corporation 509 S. Boston Ave. Suit 220 Tulsa, Oklahoma 74103-4606 Office (918) 732-7109 -Original Message- From: Sandra Ghaoui [mailto:[EMAIL PROTECTED]] Sent: Tuesday, April 30, 2002 5:43 AM To: [EMAIL PROTECTED] Subject: Recovering from a disaster Hello everybody, I have one more question ... is it possible to recover from a disaster just by having the TSM database backup and our data backup on tapes? I've been reading about the Disaster Recovery Manager and if I got it right, I would need to have copy storage pools to recover from disaster? thx for helping ... Sandra __ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com __ Do You Yahoo!? Yahoo! Health - your guide to health and wellness http://health.yahoo.com
TDP performance!!!!!
Hi everybody, I'm having BIG performance problems using TDP for Lotus Domino... I am backing up the mail databases using TDP for Lotus Domino. My configuration is the following: -TSM Server 4.2.1 on a AIX 4.3.3 -TSM client 4.2.1 and TDP for Lotus Domino 1.1 on the mail server that is a WIN2000 The company wants to perform a full backup of the mail database directly on a tape every day. The total size is of 8GB approximately. First time I did the back up, it took 1 hour to complete. But since then, I'm getting a throughput rate as low as 50 Kb/sec !!! which means that it would need 48 hours at least to complete the backup. I verified both the AIX and WIN servers speed connections and both are of 100 Mb/sec. I then tried a backup on the tape using the AIX 'tar' command and got a very good rate. Finally, I restarted the AIX but I'm still getting this very low rate ... Can you offer me any advice? Thx a lot Sandra __ Do You Yahoo!? Yahoo! Games - play chess, backgammon, pool and more http://games.yahoo.com/
