- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - HP-UX
- >
- Re: The best Oracle database structure
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
тАО06-19-2002 09:32 AM
тАО06-19-2002 09:32 AM
The best Oracle database structure
what is the advantage of having the control files and redologs on a shared storage vs the root filesystem... ?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-19-2002 09:11 PM
тАО06-19-2002 09:11 PM
Re: The best Oracle database structure
After this, the application software (oracle dbms) should be installed on to another disk.
Finally the database objects should be allocated to the remaining available disks. There are thoughts that allocating objects to specific disks is better than SAME, but you must know your application to go the former. The SAME paper is available on Oracle's website at http://otn.oracle.com/deploy/availability/pdf/oow2000_same.pdf
The storage does not need to be shared unless you are wanting to run RAC in which case the data files must also be on LV's as opposed to File Systems
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-20-2002 04:18 AM
тАО06-20-2002 04:18 AM
Re: The best Oracle database structure
In any database, keep indexes on different disks than the tables they refer to, separate the redo and archive logs on different disks.
As for control files, put them on different disks in case of hardware failure.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-20-2002 04:45 AM
тАО06-20-2002 04:45 AM
Re: The best Oracle database structure
Oracle reccommend a SAME structure (well HP say so...I'll dig out link). Put simply spread your database load over as many disks as possible. By way of an example
Disks typically have a service time of 5ms (or up to 200 IO/s), this is about 1.5MB/s, not too high for most apps. Consequentially an individual disk will bottle neck fairly quickley on IO. However, if you have the data striped across 10 disks you can deal with 2000 IO/s (15 MB/s). If you use "smart" disks with cache, or use cooked chunks (which should utilise buffercache) you can get even better performance from your disks (say 2-3 ms).
Personally, I think redologs & rollback segments should be on their own disks & the data & indexes use the SAME structure. Re-dologs & rollback segments do large sequential writes and so could get service times of 1-2 ms (4MB) which should be enough for xaction logging... The rolls royce solution is to use solid state disks for these..... But the SAME paper advises against this & I've not been able to convience anyone else that it is a great idea...Bottom line SAME works well and is easy(er) to manage, the paper explains & gives some advice on how to architect a solution.
SAME paper http://forums.itrc.hp.com/cm/components/FileAttachment/0,,0x4a8a8cc5e03fd6118fff0090279cd0f9,00.pdf
Tim
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-24-2002 06:50 AM
тАО06-24-2002 06:50 AM
Re: The best Oracle database structure
The vg00 volume is on an internal 4GB disk.
We have volume groups for /u01, /u02, /u03 for the Oracle software and datafiles.
Since we are using an AutoRAID I assume we are OK as far as mirroring and striping are concerned.
I'm new to the HP hardware so I'm working with a setup that was done by a DBA that has left our company.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-24-2002 07:05 AM
тАО06-24-2002 07:05 AM
Re: The best Oracle database structure
For 8i See Appendix A of this doc:
http://otn.oracle.com/docs/products/oracle8i/pdf/hp-ux_adminguide_817.pdf
For 9i see this doc:
http://technet.oracle.com/docs/products/oracle9i/doc_library/901_doc/A90347-02/html/appf_ofa.htm#632541
HTH
Duncan
I am an HPE Employee
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-24-2002 07:49 AM
тАО06-24-2002 07:49 AM
Re: The best Oracle database structure
The AutoRAID sounds OK. The SAME paper would reccomend that you use extent striping across the mirrored AutoRAID in RAID 1 (i.e RAID 1+0).
I hope your root disk is mirrored & not just on one 4GB disk.
As you have an AutoRAID it would be difficult for you to assign a single LUN to redologs & rolback segments etc, so don't bother just stripe it along with your data.
Tim