Hi Dave,
maybe that helps you also:
http://www.redbooks.ibm.com/redbooks/pdfs/sg246363.pdf
Performance and Tuning Guide DS4000 Family
Then Chapter 5, tuning with typical application
5.4 IBM Tivoli Storage Manager....
Timo
Dave Canan schrieb:
For a database LUN, I would choose a segment size as small as you
can go. I believe the smallest that is allowed is 8K. The database usually
has random read and writes of a 4KB page.
For the cache read ahead, you can actually turn this off by
setting it to a value of 0. Hopefully, if the database has good cache hit
percentages, then most of the data base pages will be satisfied from the
bufpool, and not be required to be read from the DS4100 disk.
At 11:02 AM 11/2/2006 -0700, you wrote:
Hi
Server 5.3.3.3 on Windows 2003
My TSM db currently resides on a DS4100 (FASTT600) on 146GB drives
configured in RAID1. What is the best configuration for segment size and
cache read ahead for the database LUN?
Thanks!
Guillaume Gilbert
Storage Architect
Storage Group, Sun Microsystems
[EMAIL PROTECTED]
514.866.8876 Office
514.290.6526 Cell
Dave Canan
TSM Performance
IBM Advanced Technical Support
[EMAIL PROTECTED]
