Regarding directio and quickio, is there a way with ZFS to skip the
system buffer cache? I've seen big benefits for using directio when
the data files have been segregated from the log files.
Having the system compete with the DB for read-ahead results in
double work.
On May 10, 2006, at 7:42 PM, Mike Gerdts wrote:
On 5/10/06, Boyd Adamson <[EMAIL PROTECTED]> wrote:
What we need is some clear blueprints/best practices docs on this, I
think.
Most definitely. Key things that people I work with (including me...)
would like to see are...
- Some success stories of people running large databases (working set
much larger than RAM) on ZFS
- Configuration/tuning best practices
- Description of why I don't need directio, quickio, or ODM.
- Performance comparisons of ZFS vs. SVM/UFS, VxVM/VxFS/ODM, and ASM
using standard benchmarks for OLTP and DSS workloads
- Same as above but with real workloads.
- How the ZFS feature set improves the lives of system
administrators, DBA's, storage, and backup admins.
For general purpse file systems (especially zones and root) I am very
eager to put zfs to work. It has great potential to simplify things
like live upgrade and answering the question "what changed?" I don't
yet have eagerness to propose that I get a cross-functional team
together to perform purely exploratory database load tests on zfs.
Mike
--
Mike Gerdts
http://mgerdts.blogspot.com/
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Gregory Shaw, IT Architect
Phone: (303) 673-8273 Fax: (303) 673-8273
ITCTO Group, Sun Microsystems Inc.
1 StorageTek Drive ULVL4-382 [EMAIL PROTECTED] (work)
Louisville, CO 80028-4382 [EMAIL PROTECTED] (home)
"When Microsoft writes an application for Linux, I've Won." - Linus
Torvalds
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