- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - HP-UX
- >
- Re: Placing Oracle Files, OFA or ....
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО02-27-2002 08:17 PM
тАО02-27-2002 08:17 PM
Placing Oracle Files, OFA or ....
Your input is required, for placing oracle files.
- We have four volumne group, so four mount points.
(/u01 /u02 /u03 /u04)
- os is in diff volume group.
- I have planed for 3 contrl files & two log members
Please ...
Thanks & Regards
Syed
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО02-27-2002 08:51 PM
тАО02-27-2002 08:51 PM
Re: Placing Oracle Files, OFA or ....
We split data file across the volue groups (usually mirrored sets of disks). We determine this at random initially and tune as necessary based on disk I/O.
Scott.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО02-27-2002 10:24 PM
тАО02-27-2002 10:24 PM
Re: Placing Oracle Files, OFA or ....
Your plan is ok so far.
My two cent to this :
separate the index tablespace files from the database tablespace files.
And try to put the offline redo logs somewhere else ( continously zipping and backing them up twice a day ).
Rgds
Alexander M. Ermes
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО02-27-2002 10:44 PM
тАО02-27-2002 10:44 PM
Re: Placing Oracle Files, OFA or ....
Try to spread the Oracle index and data filesystems over as many controllers and as many spindles (disks).
If possible, stripe your data filesystems across spindles to increase I/O throughput for random-accessed data. Remember that for performance reasons, the Oracle block size must be a multiple of the OS stripe size. The optimal (depends on your data) is usually has Oracle block size equals filesystem block size (eg. 8 KB)
For control files and archive logs, they are sequentially accessed, thus striping is never encouraged. Also, if you are already mirroring the control files at the oracle level, there is no need to mirror them at the OS level. As far as possible, try to have your control files use different spindles and controllers.
Hope this helps. Regards.
Steven Sim Kok Leong
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО02-28-2002 12:23 AM
тАО02-28-2002 12:23 AM
Re: Placing Oracle Files, OFA or ....
4 units is not that much ....
3 controlfiles is OK
2 members for online logs is a good choice
no datafile on a volume/disk where the offline redologs are located (loss of data may occour if this disk goes down).
No problem to put datafile and online-redologs (if several members) together, beside performance and a bit recovery overhead.
Hope this helps
Volker
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО03-01-2002 06:14 PM
тАО03-01-2002 06:14 PM
Re: Placing Oracle Files, OFA or ....
Would love to help you.
Today Oracle is advocating SAME strategy.
SAME means "Stripe and Mirror Everything", most of us old school (I'm not that old) do not advocate this.
Actually some of us make a pretty good living of reversing SAME and providing a customer a nice boost in performance.
Here goes a strategy that will work for you:
Lets say you have 12 disks, we won't consider mirroring here:
Mount points would follow the "OFA on Steroids" strategy:
/u01 - Oracle install - single disk or chunk of vg00
/dba/u02 - Oracle odd redo primary - single disk
/dba/u03 - Oracle even redo primary - single disk
/dba/u04 - Oracle odd redo mirror - single disk
/dba/u05 - Oracle even redo mirror - single disk
/dba/u06 - Oracle SYSTEM, TEMP, TOOLS - single disk or 2-4 disk stripe
/dba/u07 - Oracle RBS - single disk or 2-4 disk stripe
/dba/u30 to u69 - Oracle datafiles - 2-4 disk stripes, 128kb-1M stripe width
/dba/u2*
/dba/u70-u100 - Oracle indexes - 2-4 disk stripes, 128kb-1M stripe width
This is something. If you only have 4 disks, then SAME them.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО03-02-2002 05:08 AM
тАО03-02-2002 05:08 AM
Re: Placing Oracle Files, OFA or ....
Dennis' input is perfect.. remember to add a disk for archiving redologs.
I do also prefer the OLD school of OFA.
and after introducing the Localy managed tablespaces, placement of the system tablespace has become less important in terms of performance...
Andreas