I would be suspicious of having the db on XIV. Do you have any FC or SAS Disk you could try putting the DB on? I know XIV has lots of CPU & cache, but underneath it all is still SATA. I've heard Marketing types rave about how fast XIV is, even with SATA, because I/O can be spread across many spindles, but I'm not entirely convinced it's as good as 15k FC or SAS.
..Paul On Oct 8, 2010, at 12:27 PM, "Andrew Carlson" <naclos...@gmail.com> wrote: > Hi all > > I am running TSM 6.2.1.1 on AIX V615 in a LPAR on a P770. The LPAR > has 6 shared CPU's, 12 virtual CPU;s, and 64GB of memory. There are 2 > VIO servers with 4 fiber channel connections to XIV storage for the DB > and LOG, and 2 10Gbit Ethernet in each VIO in an Etherchannel > configuration. The storage pool is on Data Domain DD880's, 2 per AIX, > 1 per instance. > > I am seeing consistenly poor performance from this setup. I have > tested network from VIO to cloud, and LPAR to VIO, which seems fine. > I tested LPAR to Data Domain, and things seem fine. But, when backups > are running (and I only have a few nodes there yet, this is a new > setup), TSM doesn't seem to want to go over 20 to 30MB/s throughput. > I tried backing up the TSM server over lo, and that was a little > better at 50MB/s, but not screaming. I tried using chunk of SAN as a > disk pool ahead of the Data Domain, no change. I am at my whit's end. > > If anyone has any ideas, please let me know. Thanks. > > -- > Andy Carlson > --------------------------------------------------------------------------- > Gamecube:$150,PSO:$50,Broadband Adapter: $35, Hunters License: $8.95/month, > The feeling of seeing the red box with the item you want in it:Priceless.
