- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - HP-UX
- >
- Re: Same disk no across all the servers
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
тАО09-21-2011 12:11 AM
тАО09-21-2011 12:11 AM
Same disk no across all the servers
Dear HP-UX Lovers,
I am installing 4 vPars and will present Storage LUNs to all these four servers. Bit the disk name (for the same LUN) is varying server to server.
Eg: The same lun in one server is disk122 and in others disk324, disk134, disk226.
The database team wants same disk name across all the four nodes.
Pls suggest what should be done to keep the disk name same across tyhe servers.
Regards...
Kuntal
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО09-21-2011 02:16 AM
тАО09-21-2011 02:16 AM
Re: Same disk no across all the servers
>> The database team wants same disk name across all the four nodes
Is this for Oracle ASM?
If so then I would identify the major /minor numbers for each disk on each system and then use mknod to create specific disks for Oracle ASM's use in a different directory. Then you can make it consistent. e.g. let's say on one system the disk was disk31 - I would do the following:
# ll /dev/rdisk/disk31
crw-r----- 1 bin sys 13 0x00000f May 11 13:42 /dev/rdisk/disk31
So the major/minor numbers are 13 and 0x00000f - I can now use the mknod command to create something specific for asm:
# mkdir /dev/asm
# chown oracle:dba /dev/asm
# mknod /dev/asm/asmdisk1 c 13 0x00000f
# chown oracle:dba /dev/asm/asmdisk1
You can repeat this on the other vPars and give the ASM disk a consistent name
Now tell your DBAs to set their ASM instance parameter ASM_DISKSTRING to '/dev/asm/asmdisk*'
I am an HPE Employee
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО09-21-2011 02:45 AM
тАО09-21-2011 02:45 AM
Re: Same disk no across all the servers
Dear Mr Duncan,
Thanks a lot for a clear reply.
We will be usning SYBASE, but I believe the concept will be same.
Just one quarry based on the follwing example shown by you:
**********************************************************************************************
# ll /dev/rdisk/disk31
crw-r----- 1 bin sys 13 0x00000f May 11 13:42 /dev/rdisk/disk31
So the major/minor numbers are 13 and 0x00000f - I can now use the mknod command to create something specific for asm:
# mkdir /dev/asm
# chown oracle:dba /dev/asm
# mknod /dev/asm/asmdisk1 c 13 0x00000f
# chown oracle:dba /dev/asm/asmdisk1
**********************************************************************************************
My understadning:
Here the same device (/dev/rdisk/disk31) is recognised by two dsf namely /dev/rdisk/disk31 and /dev/asm/asmdisk1.
So even if accidentally /dev/rdisk/disk31 is deleted till the system will recognise the disk by /dev/asm/asmdisk1.
Quarry:
Is my understanding is right?
Thanking you in anticipation of your reply.
Best Regards...
Kuntal
- Tags:
- Sybase
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО09-21-2011 05:19 AM
тАО09-21-2011 05:19 AM
Re: Same disk no across all the servers
Yes, your understanding is correct - obviously I think a different naming convention and ownership would be appropriate...
I am an HPE Employee