HP-UX active-active rac environment cluster

HP Serviceguard for RAC

Note -

For active-active rac environment, disks must be shared. this can be done with serviceguard for rac, with oracle asm, or with cfs cluster. for creating cfs packages, cluster environment must be created

You need an application that supports active-active. You can not do this with Oracle Server, it will corrupt the data. You can with Oracle RAC

vgchange -a e becomes vgchange -a s
Activate the shared storage in shared mode so both nodes can read and write to it.

For Active/Active HP-UX MCSG Cluster Node Configuration that is fully depends on the customer requriment.

As you know the Active/Active Cluster is used for Applicatio Environment.

And in the Oracle Databse Environment you can use with Oracle RAC(Real Application Cluster.

Active/Active Cluster used maxium in the Core Banking Environment.

At the time Active/Active Cluster Installation those VG u requried to be Active in second cluster node.

Use the following commands to setup VG on another cluster node.

# vgexport -s -p -m /tmp/vgtu1.map /dev/vgtu1

Copy the map file to second cluster node.

# rcp /tmp/vgtu1.map tcidb02:/tmp/vgtu1.map

Import the VG using the map on second cluster node.

# vgimport -s -m /tmp/vgtu1.map /dev/vgtu1

Then after done every thing the VG active in the shared mode for which active/active cluster.

Activate the shared VG in the shared mode then the both node can read write.

Use to active the VG in the pkg cntl file in place of vgchange -a e vgname to vgchange -a s vgname

# vgchange -a e vgname

# vgchange -a s vgname

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