- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - Linux
- >
- Re: Another RAW ??
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
тАО05-08-2009 10:49 AM
тАО05-08-2009 10:49 AM
can I fdisk a disk and partition part of the disk for RAW and the remainder for LVM ??
Or is the scsi_id needed for setting up raw only for the entire disk ?? or a seperate scsi_id for each partition ??
Solved! Go to Solution.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО05-08-2009 10:57 AM
тАО05-08-2009 10:57 AM
Re: Another RAW ??
it should be a entire disk.
mikap
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО05-10-2009 09:56 PM
тАО05-10-2009 09:56 PM
Re: Another RAW ??
You can provide either raw slice as the whole disk or as raw partition.
If you're using LVM then create a raw logical partition and bind the volume to the raw devices using `raw` command.
check the URL: http://www.dba-oracle.com/real_application_clusters_rac_grid/raw_devices_linux.html
http://kbase.redhat.com/faq/docs/DOC-10164
Thanks,
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО05-11-2009 04:59 AM
тАО05-11-2009 04:59 AM
SolutionWhen using a raw device, Oracle assumes it is the only one accessing that physical disk hardware, and tries to optimize its disk caching and access pattern accordingly. If other partitions/LVs are sharing the physical disk with Oracle raw data area, any access to those partitions/LVs will throw off Oracle's optimizations and your database performance may be reduced.
But if you are trying to implement a low-traffic Oracle setup (maybe a test system?) and you have a requirement to use the disk space as efficiently as possible, go ahead.
What tools are the DBAs using to configure their raw disks? With some tools, it might be easier to identify the disk with scsi_ids instead of device names. But that would be a limitation of that particular tool.
MK
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО05-11-2009 05:06 AM
тАО05-11-2009 05:06 AM