High Availability for Oracle ASM using HP Serviceguard Solutions, September 2010
Table Of Contents
- High Availability for Oracle ASM using HP Serviceguard Solutions
- Introduction
- Terms and definitions
- ASM background
- HP Serviceguard support for ASM on HP-UX 11i v2
- HP Serviceguard support for ASM on HP-UX 11i v3 and later
- Framework for ASM support with Serviceguard
- Installing, configuring, and troubleshooting
- Related documentation
- Appendix
- Call to action
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Figure 3: HP Serviceguard ASM environment
The diagram below shows the scenario when DB1 fails on node 2.
Figure 4: ASM environment when DB1 fails on node 2
Oracle D Bs in ASM Diskgroup
Node 1 Node 2
Get DB File Extent Maps
AS M instance
Disk groups not
mounted on start up
Get DB File Extent Maps
Read/Write DB FilesRead/Write DB Files
Read/write Disk group h eaders
Rebalance Disk group data
Read/write Disk group headers
Rebalance Disk group data
AS M instance
Disk groups not
mounted on start up
DB1
Disk groups mounted
on startup
DB0
Disk groups mounted
on startup
Oracle DBs in ASM Diskgroup
Node 1 Node 2
Get DB File Extent Maps
ASM instance
Disk groups not
mounted on startup
Read/Write DB Files
Read/write Disk group headers
Rebalance Disk group data
ASM instance
Disk groups not
mounted on startup
DB0
Disk groups mounted
on startup
DB1
Disk groups mounted
on startup