Sun Cluster Geographic Edition Data Replication Guide for Hitachi TrueCopy and Universal Replicator

ProcedureHow to Replicate the Veritas Volume Manager Configuration Information From the Primary Cluster

Before You Begin

If you are using storage-based replication, do not configure a replicated volume as a quorum device. The Sun Cluster Geographic Edition software does not support Hitachi TrueCopy or Universal Replicator S-VOL and Command Device as a Sun Cluster quorum device. See Using Storage-Based Data Replication Within a Cluster in Sun Cluster System Administration Guide for Solaris OS for more information.

  1. Start replication for the devgroup1 device group.


    phys-paris-1# paircreate -g devgroup1 -vl -f async
    
    phys-paris-1# pairdisplay -g devgroup1
    Group PairVol(L/R) (Port#,TID,LU),Seq#,LDEV#,P/S,Status,Fence,Seq#,P-LDEV# M 
    devgroup1 pair1(L) (CL1-A , 0, 1) 54321   1..P-VOL COPY ASYNC ,12345 609   -
    devgroup1 pair1(R) (CL1-C , 0, 20)12345 609..S-VOL COPY ASYNC ,-----   1   -
    devgroup1 pair2(L) (CL1-A , 0, 2) 54321   2..P-VOL COPY ASYNC ,12345 610   -
    devgroup1 pair2(R) (CL1-C , 0, 21)12345 610..S-VOL COPY ASYNC ,-----   2   -
  2. Wait for the state of the pair to become PAIR on the secondary cluster.


    phys-newyork-1# pairdisplay -g devgroup1
    Group PairVol(L/R) (Port#,TID,LU),Seq#,LDEV#,P/S,Status,Fence,Seq#,P-LDEV# M
    devgroup1 pair1(L) (CL1-C , 0, 20)12345 609..S-VOL PAIR ASYNC,-----, 1     - 
    devgroup1 pair1(R) (CL1-A , 0, 1) 54321   1..P-VOL PAIR ASYNC,12345, 609   - 
    devgroup1 pair2(L) (CL1-C , 0, 21)12345 610..S-VOL PAIR ASYNC,-----, 2     - 
    devgroup1 pair2(R) (CL1-A , 0, 2)54321    2..P-VOL PAIR ASYNC,12345, 610   -
  3. Split the pair by using the pairsplit command and confirm that the secondary volumes on cluster-newyork are writable by using the -rw option.


    phys-newyork-1# pairsplit -g devgroup1 -rw 
    phys-newyork-1# pairdisplay -g devgroup1
    Group PairVol(L/R) (Port#,TID,LU),Seq#,LDEV#,P/S,Status,Fence,Seq#,P-LDEV# M 
    devgroup1 pair1(L) (CL1-C , 0, 20)12345 609..S-VOL SSUS ASYNC, -----  1    - 
    devgroup1 pair1(R) (CL1-A , 0, 1) 54321   1..P-VOL PSUS ASYNC,12345  609   W 
    devgroup1 pair2(L) (CL1-C , 0,21) 12345 610..S-VOL SSUS ASYNC,-----   2    - 
    devgroup1 pair2(R) (CL1-A , 0, 2) 54321   2..P-VOL PSUS ASYNC,12345  610   W
  4. Import the Veritas Volume Manager disk group, oradg1.


    phys-newyork-1# vxdg -C import oradg1
    
  5. Verify that the Veritas Volume Manager disk group was successfully imported.


    phys-newyork-1# vxdg list
    
  6. Enable the Veritas Volume Manager volume.


    phys-newyork-1# /usr/sbin/vxrecover -g oradg1 -s -b
    
  7. Verify that the Veritas Volume Manager volumes are recognized and enabled.


    phys-newyork-1# vxprint
    
  8. Register the Veritas Volume Manager disk group, oradg1, in Sun Cluster.


    phys-newyork-1# cldevicegroup create -t vxvm -n phys-newyork-1,phys-newyork-2 oradg1
    
  9. Synchronize the volume manager information with the Sun Cluster device group and verify the output.


    phys-newyork-1# cldevicegroup sync oradg1
    phys-newyork-1# cldevicegroup status
    
  10. Add an entry to the /etc/vfstab file on phys-newyork-1.


    phys-newyork-1# /dev/vx/dsk/oradg1/vol1 /dev/vx/rdsk/oradg1/vol1 \
    /mounts/sample ufs 2 no logging
    
  11. Create a mount directory on phys-newyork-1.


    phys-newyork-1# mkdir -p /mounts/sample
    
  12. Create an application resource group, apprg1, by using the clresourcegroup command.


    phys-newyork-1# clresourcegroup create apprg1
    
  13. Create the HAStoragePlus resource in apprg1.


    phys-newyork-1# clresource create -g apprg1 -t SUNW.HAStoragePlus \
    -p FilesystemMountPoints=/mounts/sample -p Affinityon=TRUE \
    -p GlobalDevicePaths=oradg1 rs-hasp
    

    This HAStoragePlus resource is required for Sun Cluster Geographic Edition systems, because the software relies on the resource to bring the device groups and file systems online when the protection group starts on the primary cluster.

  14. If necessary, confirm that the application resource group is correctly configured by bringing it online and taking it offline again.


    phys-newyork-1# clresourcegroup switch -emM -n phys-newyork-1 apprg1
    phs-newyork-1# clresourcegroup offline apprg1
    
  15. Unmount the file system.


    phys-newyork-1# umount /mounts/sample
    
  16. Take the Sun Cluster device group offline.


    phys-newyork-1# cldevicegroup offline oradg1
    
  17. Verify that the Veritas Volume Manager disk group was deported.


    phys-newyork-1# vxdg list
    
  18. Reestablish the Hitachi TrueCopy or Universal Replicator pair.


    phys-newyork-1# pairresync -g devgroup1
    phys-newyork-1# pairdisplay -g devgroup1
    Group PairVol(L/R) (Port#,TID,LU),Seq#,LDEV#,P/S,Status,Fence,Seq#,P-LDEV# M 
    devgroup1 pair1(L) (CL1-C , 0, 20)12345 609..S-VOL PAIR ASYNC,-----   1    - 
    devgroup1 pair1(R) (CL1-A , 0, 1) 54321   1..P-VOL PAIR ASYNC,12345  609   W 
    devgroup1 pair2(L) (CL1-C , 0,21) 12345 610..S-VOL PAIR ASYNC,-----   2    - 
    devgroup1 pair2(R) (CL1-A , 0, 2) 54321   2..P-VOL PAIR ASYNC,12345  610   W

    Initial configuration on the secondary cluster is now complete.