It is a lightly loaded XIV, and the disk system does not seem under pressure, unless I force it with dd or something in testing, but I will check it out.
Any other ideas out there? On Fri, Oct 8, 2010 at 11:37 AM, Paul Zarnowski <p...@cornell.edu> wrote: > 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. > -- 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.
