| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
 |
 | |||
| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
|
| |||
Home -> Community -> Mailing Lists -> Oracle-L -> RE: Advice needed on move to Sun 15K (losing spindles)
Jay - I share your concerns. Can you elaborate more on how heavily loaded
the system is? Is it somewhat I/O bound? Basically you're saying that it
would have a single RAID0 set? If you divided the disks differently to
create 2 or 4 RAID sets, would there be enough room for your application?
I've run Oracle systems with a single RAID set, but not with a significant
load.
Dennis Williams
DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com
-----Original Message-----
Sent: Wednesday, October 09, 2002 1:54 PM
To: Multiple recipients of list ORACLE-L
Our CIO has suggested that we get a Sun 15K to house all of our databases. This has some advantages (communication between the various boxes would be much faster) but I have some performance concerns.
Specifically, our main OLTP database would go down from 18 spindles to 8 spindles. Mirroring will take away 4 of those leaving 4 spindles. The vendor (Sun) was recommending striping across all 4 spindles. He said we don't need to worry about i/o issues because there will be a large cache.
I'm skeptical and argued for cutting them in half (striping 2 and 2). We could then at least seperate the redo logs from the datafiles (probably putting them with the oracle executables and some other files).
The Sun rep kept talking up how much more powerful the CPUs were and I kept saying, "but we're not CPU bound, we don't need any more CPU".
If anyone can either
I'd really appreciate it.
Thanks,
Jay Miller
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Miller, Jay
INET: JayMiller_at_TDWaterhouse.com
Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services ---------------------------------------------------------------------To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services ---------------------------------------------------------------------To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Wed Oct 09 2002 - 14:24:18 CDT
 |
 |