We run TSM 4.2.1.15 on AIX 4.3.3. 450 clients registered, 370+ clients back up every 24 hours. Nightly load varies from 120GB to 180GB, 90% small files, up to 1million a day. The server is an RS6000 F50 with 2 processors, 1 GB of ram. Data base is 90% of 33GB.
Expiration runs about 2 hours per day, 4-5 hours weekends. Ours is an OLD machine; just about ANY RS6000 newer than the F50 should handle your load nicely, in my opinion (and I'm sure you'll get many others!). TSM backups are NOT CPU intensive; more processors would not improve our throughput. We really need another 1 GB of RAM on this machine, but it's due for mothballing soon. You will want to configure for fast disk throughput and use high-performance tape. You will be delighted at how fast an RS6000 pushes I/O; as an old mainframer, I would not have believed it until I saw the way this RS6000 performs. That said, the issues are all the same as on OS/390 - I/O, I/O, it's all about I/O. You will want to configure your RS6000 so that you can spread the I/O over multiple buses, multiple disks. One big RAID set is NOT a good idea, esp. if your backups are small files. I have a combination of SSA disk (over 2 adapters) and internal SCSI disk (also spread over 2 adapters) with physical mirroring instead of RAID, to get more speed. There have also been many posts on the list about good results striping the I/O. And don't forget the RAM, AIX will use it all to good advantage. Wanda Prather Johns Hopkins University Applied Physics Lab -----Original Message----- From: Brian L. Nick [mailto:[EMAIL PROTECTED]] Sent: Friday, January 31, 2003 10:49 AM To: [EMAIL PROTECTED] Subject: TSM on AIX. Hello everyone, I was wondering if you would be willing to share some information with me. We are looking at the possibility of moving our TSM server running on OS/390 2.10 to AIX. We have a TSM server 4.2.1.9 backing up 200 clients and nightly and about 220GB of data, data base is 37.5GB at 50% utilization. What I am looking for is real numbers for AIX. RS/6000 model AIX version TSM version # of clients amount of data DB size. There have been all kinds of different recommendations as to how this box should be configured from using SP nodes to a P-690 so I am looking for some real world working TSM environment numbers. Any information can be sent to me directly at the e-mail address listed below. Thanks, Brian Brian L. Nick Systems Technician - Storage Solutions The Phoenix Companies Inc. 100 Bright Meadow Blvd Enfield CT. 06082-1900 E-MAIL: [EMAIL PROTECTED] PHONE: (860)403-2281
