- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - HP-UX
- >
- ServiceGuard signature in LVM physical volumes
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
тАО02-17-2004 08:09 PM
тАО02-17-2004 08:09 PM
I know MC/ServiceGuard signs LVM physical volumes of managed volume groups (vgchange -c y). But is this signature the same in every MC/SG cluster (like a flag) or is a generated code (i.e, different values in different clusters) ?
I found some doc (I searched it again but I didn't found) that discussed this value is a 4-byte value starting at 0x12090 position in physical volume. I have three different MC/SG clusters but all they have the same value (0x100).
Thanx in advance
P.D: This value is 0x00 where physical volume is not managed by a cluster.
Solved! Go to Solution.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО02-17-2004 08:21 PM
тАО02-17-2004 08:21 PM
Re: ServiceGuard signature in LVM physical volumes
We overwrite this with the vgchange -c y on the new cluster.
HTH,
Peter
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО02-17-2004 08:35 PM
тАО02-17-2004 08:35 PM
Re: ServiceGuard signature in LVM physical volumes
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО02-17-2004 09:12 PM
тАО02-17-2004 09:12 PM
Re: ServiceGuard signature in LVM physical volumes
Does anybody know that location ?
But I'm confused because the value contained in that location in non-cluster physical volumes (for instance, belonging vg00) is 0x0000 as expected.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО02-18-2004 12:10 AM
тАО02-18-2004 12:10 AM
SolutionExample:
echo "0d8332?U" | adb /dev/dsk/c4t0d0
208C: 1047653933
This translates to the cluster creation time:
# echo "0d8332?Y" | adb /dev/dsk/c4t0d0
208C: 2003 Mar 14 15:58:53
Best regards...
Dietmar.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО02-18-2004 07:14 PM
тАО02-18-2004 07:14 PM
Re: ServiceGuard signature in LVM physical volumes
Effectively the ClusterID is not the same. If you have a array replication (like srdf) between 2 arrays, and each array belong to 2 diffirent cluster, you'll have 2 differents ClusterID, and the disk can only be used by 1 cluster.
You can see the CLusterId with :
/usr/contrib/bin/lvm11 -a -d /dev/rdsk/cXtYdZ
--> "Cluster that can use this vg : 1003525071" for exemple.
francois