Depending on your disk pool media, it is almost always faster to send a DB backup to tape because of the size and single-threadedness of most DB backups. All our MS-SQL and DB2 backups are in a class that forces direct to tape and they tend to be 400-800% faster than diskpool would be for the same backup. Environment: LAN based clients. Some Gigabit, some 100Mbps. all attached to Cisco 6513 switch. Gigabit SX network on the ADSM server ADSM server- H50 4proc, 3GB ram disk pool - 100GB of SSA raid5 on 6215 without fastwrite cache tape - LTO1 (2 per bus) on 6205 adapter in an ADIC scalar 1000 library.
-----Original Message----- From: Jeff Rogers [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 19, 2003 7:01 AM To: [EMAIL PROTECTED] Subject: Re: Slow DB2 backups and IBM says I'm too old for support Keep in mind, this system has been working flawlessly for at least two years, which is why we don't touch it. We have enough headaches, we don't need to create our own. :-) At the time we noticed this problem we were doing tests before putting this machine into production, a backup test is standard procedure. The system was idle except for this backup, this was during the day, so no other backups were going on at the same time, hence, the TSM server was also idle. Our quick reality check was to kick off a backup from a known working server, and watch the traffic. Pretty much nailing this down to the client machine, or a TSM version incompatibility issue. Backups were going to a disk storage pool, not tape. One of my original questions. What are the current supported versions of TSM, and which of those supported versions is known as the stable one, backing up TDP Domino, Oracle, DB2 (via API) and standard filesystem backups. This upgrade has been put off because I've been told it is a double hit, OS and TSM at the same time. Not fun, but at least the maintenance window is during the day. Versions: TSM Server: 4.2.1.7 Server OS: AIX: 433-10 (32-bit) Client OS: AIX 510-03 (32-bit) TSM API: 4.2.3.0 <- I seem to recall we had to go above 4.2.1.7 to get it to work at all. It appears I need to get some PTF's for AIX 5 that are known to fix network problems, so I'll start there -JeffR This transmittal may contain confidential information intended solely for the addressee. If you are not the intended recipient, you are hereby notified that you have received this transmittal in error; any review, dissemination, distribution or copying of this transmittal is strictly prohibited. If you have received this communication in error, please notify us immediately by reply or by telephone (collect at 907-564-1000) and ask to speak with the message sender. In addition, please immediately delete this message and all attachments. Thank you. ACS20/11/2003
