Re: Opinion on disk layout for db, log & storagepools

2010-09-27 Thread Skylar Thompson
Do you know what your workload is going to be? For database sizing, you need to know how many files total you will retain. For storage pool sizing, you need to know your average and peak daily backup rates in bytes. For recovery log sizing, you need to know how many files you will backup in a singl

Re: Opinion on disk layout for db, log & storagepools

2010-09-27 Thread Paul Zarnowski
You didn't say whether this was for a v5 or a v6 server. It makes a difference. On the v6 side, I think that IBM has recently been refining their recommendations. ..Paul At 11:20 AM 9/27/2010, Moyer, Joni M wrote: >Hi Everyone, > >I am in the process of acquiring new disk which means that I w

Re: Opinion on disk layout for db, log & storagepools

2010-09-27 Thread Richard Sims
I would principally follow IBM's recommendations as put forth in the TSM Performance Tuning Guide. You seem to be running AIX, where putting volumes into a file system is the inferior approach to raw logical volumes (which I use, and have found satisfying). Richard Sims

Opinion on disk layout for db, log & storagepools

2010-09-27 Thread Moyer, Joni M
Hi Everyone, I am in the process of acquiring new disk which means that I will be able to layout the storage for the database, log and storage pools in a more efficient manner. I was told by IBM that a filesystem should contain no more than 2-3 volumes and there should be a 1 to 1 ratio of phy