Hi First off, there are several things that affect the performance except for just the optfile, software versions and your operating system: * What speed are you having making the backup over the LAN? * How fast are the disks on your Domino server, are they able to transfer data at the speeds your tape drives are writing? * How large are the files on your Domino server (average) ? * What's the version of the IBMtape driver on your Domino host? The version on your TSM server (which controls the library) really doesnt affect read/write performance since it only controls the robotics. Have you verified that the backup is actually being done across the SAN and not the LAN? 700GB in 30 hours is 23MB/s, which more looks like a slower than average LAN backup over gigabit ethernet. If your Domino server cant deliver data to the tapes drives with enough speed, you'll end up with a shoeshine effect, which will seriously reduce performance. Since you're using IBMtape, I'm assuming you're using some sort of LTO drives. If you for example have a LTO3 drive, it will write data @ 80MB/s natively. If your host only delivers data at 40MB/s, you will have a drive that is spending more time rewinding than actually writing the data.
Some more information about your environment (hardware on both client & server incl tape technology, your TDP configuration file) would be helpful in determining the error. Best Regards Daniel Sparrman Exist i Stockholm AB Växel: 08-754 98 00 Fax: 08-754 97 30 [email protected] http://www.existgruppen.se Posthusgatan 1 761 30 NORRTÄLJE -----"ADSM: Dist Stor Manager" <[email protected]> skrev: ----- Till: [email protected] Från: Sandeep Jain <[email protected]> Sänt av: "ADSM: Dist Stor Manager" <[email protected]> Datum: 05/18/2011 06:54 Ärende: tdp for domino LAN free backup poor performance HI friends i am experiencing very very poor backup performance while taking backup of domino server. It is having around 700GB of data and LAN FREE backup on 2 tapes completing in 30 hours. OS WIN2k3 64_bit Ent Ed. Lotus. 8.5.2 TDP for mail 5.5.3 Storage agent 5.5 Version of ibmtape device driver on the Domino windows host that controls tape drives---6.2.1.5 i have also tried performance tunning parameters but no luck. DOMTXNGROUPMAX= 64 DOMTXNBYTELIMIT =2097152 dsm.opt *======================================================================* * * * IBM Tivoli Storage Manager for Mail * * Data Protection for Lotus Domino * * * * Sample Options File * * * *======================================================================* COMMMethod TCPip TCPPort 1500 TCPServeraddress 10.3.3.34 TCPWindowsize 63 TCPBuffSize 32 TXNBYTELIMIT 2097152 　 NODename domino_PDCHM_tdp PASSWORDAccess Generate 　 SCHEDMODE Polling *SCHEDLOGRetention 14 *SCHEDMODE Prompted *TCPCLIENTADDRESS yy.yy.yy.yy *TCPCLIENTPORT 1502 enablelanfree yes *lanfreecommmethod tcpip *lanfreetcpport 1500 　 COMPRESSIon NO COMPRESSAlways NO 　 　 * Exclude all databases named "db1.nsf" regardless of where they appear *EXCLUDE db1.nsf * Exclude all databases that match "help5_*" in the "help" subdirectory *EXCLUDE help\help5_* * Include all databases in the "mail6" directory *INCLUDE mail6\...\* * Assign all databases that match "*.nsf" in the "mail" subdirectory * to the "MAILDB" management class *INCLUDE mail\*.nsf* MAILDB * Exclude all databases in the "mail6" subdirectory from compression *EXCLUDE.COMPRESSION mail6\...\* * Encrypt all databases in the "mail5" directory *INCLUDE.ENCRYPT mail5\...\* * The Default include/exclude list follows: * * Note: You can back up the log.nsf database but you can only restore * it to an alternate name. * EXCLUDE log.nsf EXCLUDE mail.box * Include all transaction logs INCLUDE S*.TXN TCPNODELAY YES Regards Sandeep jain -- I am using the free version of SPAMfighter. We are a community of 7 million users fighting spam. SPAMfighter has removed 18254 of my spam emails to date. Get the free SPAMfighter here: http://www.spamfighter.com/len The Professional version does not have this message Disclaimer: This e-mail is intended for the sole use of the recipient(s) and may contain confidential or privileged information. If you are not the intended recipient and receive this message in error, any dissemination, use, review, distribution, printing or copying of this message is strictly prohibited, and you are requested to notify the sender and destroy all copies of the original message. Thank you
