A couple questions 1) How is this 5TB laid out, 1,2,3,4 or more file systems?
2) How many streams do you see when the backup is running? (Resource utilization / mutli streaming is by File System for flat file backups. 3) Are the tape drives on dedicated HBA's? 4) Are you sure that the Data is going over the fibre? If not configured properly TSM will automatically direct the backups over the LAN (sounds right for 70MBS) Charles -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of David McClelland Sent: Tuesday, November 23, 2010 8:14 AM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] Antwort: [ADSM-L] LanFree very low performance Peppix, It may be helpful if you are able to send to the list the output of a backup session summary report from the client for a backup operation which exhibited this poor performance. Rgds, ______________ David Mc, London, UK -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Ullrich Mänz Sent: 23 November 2010 14:09 To: ADSM-L@VM.MARIST.EDU Subject: [ADSM-L] Antwort: [ADSM-L] LanFree very low performance 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 Mobil: +49 170 7678434 Fax: +49 69 38013500 10 Web: http://www.fum.de Amtsgericht Ulm, Handelsregister-Nummer: HRB 1936 Geschäftsführer: Heribert Fritz, Oliver Schallhorn, Frank Haines Inhaber: Imtech N.V., Gouda, Niederlande Referenzen finden Sie auf unserer Website, Rubrik 'News'. Von: peppix <tsm-fo...@backupcentral.com> An: ADSM-L@VM.MARIST.EDU Datum: 23.11.2010 00:25 Betreff: [ADSM-L] LanFree very low performance Gesendet von: "ADSM: Dist Stor Manager" <ADSM-L@VM.MARIST.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 +---------------------------------------------------------------------- |This was sent by barberi.giuse...@gmail.com via Backup Central. |Forward SPAM to ab...@backupcentral.com. +---------------------------------------------------------------------- This e-mail, including attachments, may include confidential and/or proprietary information, and may be used only by the person or entity to which it is addressed. If the reader of this e-mail is not the intended recipient or his or her authorized agent, the reader is hereby notified that any dissemination, distribution or copying of this e-mail is prohibited. If you have received this e-mail in error, please notify the sender by replying to this message and delete this e-mail immediately.
