Hi peppix,
you are using incremental backup for an offline database backup. I wonder,
how you deal with 5 tape drives. Normally, backup incremental is using one
session per mountpoint. set max. number of mountpoints in node definition
for parallelism.
The throughput reported is ok for single session backup via LAN, It is
slow for a large file backup via LANfree for a completely fibre channel
based RAID system, but acceptable for SATA storage.
Have a look at your storage environment and node definitions with respect
to the directory layout of the database environment.
regards
Ulli
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - -
Ullrich Mänz
System-Integration
FRITZ & MACZIOL Software und Computervertrieb GmbH
Ludwig Str. 180D, 63067 Offenbach, Germany
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Von: peppix <tsm-forum AT BACKUPCENTRAL DOT COM>
An: ADSM-L AT VM.MARIST DOT EDU
Datum: 23.11.2010 00:25
Betreff: [ADSM-L] LanFree very low performance
Gesendet von: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
Hi all,
I'm trying to backup an oracle db (5TB) by lanfree, but the transfer speed
is 70 mb/s (over 5 drives)!! The db is offiline so I use the incremental
backup.
The client configuration (v.5.5.2.2):
SErvername XXXXXXXXX
COMMMethod TCPip
TCPPort 1500
TCPServeraddress XXXXXXX
DISKBUFFSIZE 1023
TCPWindowsize 1024
TCPBUffsize 512
passwordaccess generate
nodename XXXXXXX
RESOURCEUTILIZATION 10
TCPNOdelay YES
TXNByteLimit 2097152
LargeCommBuffer NO
CommRestartDuration 5
CommRestartInterval 15
schedmode prompted
managedservices schedule webclient
ERRORlogname /usr/tivoli/tsm/client/ba/bin/dsmerror.log
ERRORlogrete 7 D
SCHEDlogname /usr/tivoli/tsm/client/ba/bin/dsmsched.log
schedlogrete 7 D
inclexcl /usr/tivoli/tsm/client/ba/bin/inclexcl.lst
enablelanfree yes
LANFREECommmethod TCPIP
LANFREETCPPort 1500
Server configuration (v.5.5.4.0):
COMMmethod TCPIP
TCPPort 1500
TCPWindowsize 1024
TCPBufsize 32
TCPNODELAY YES
COMMmethod HTTP
HTTPPort 1580
COMMmethod SHaredmem
SHMPort 1510
IDLETimeout 2880
LANGuage en_US
DATEformat 2
TIMEformat 1
NUMberformat 5
EXPInterval 0
MIRRORREAD LOG NORMAL
MIRRORREAD DB NORMAL
MIRRORWRITE LOG PARALLEL
MIRRORWRITE DB SEQUENTIAL
VOLUMEHistory /tsmdblog/config/volhistory.txt
VOLUMEHistory /usr/tivoli/tsm/server/bin/volhistory.txt
DEVCONFig /tsmdblog/config/devconfig.txt
DEVCONFig /usr/tivoli/tsm/server/bin/devconfig.txt
BUFPoolsize 32768
LOGPoolsize 4096
TXNGroupmax 256
MOVEBatchsize 1000
MOVESizethresh 1024
tcpnodelay YES
DNSLOOKUP NO
COMMTIMEOUT 14400
MAXSESSIONS 80
SANDISCOVERY ON
Considerations:
- 12 drives installed in the library
- SAN and TSM work good (with the same tsm server in the same SAN I backup
a lot of SAP by TDP at 300MB/s)
- all server backupped by incremental have the same problem (same
configuration but different san switch and different hba).
Can you help me please?
thanks,
best regards
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