Sun Cluster Geographic Edition Data Replication Guide for EMC Symmetrix Remote Data Facility

Configuring the Other Entities on the Secondary Cluster

Next, you need to configure the volume manager, the Sun Cluster device groups, and the highly available cluster file system. You can configure these entities in two ways:

Each of these methods is described in the following procedures.

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

  1. Start replication for the devgroup1 device group.


    phys-paris-1# symrdf -g devgroup1 -noprompt establish
    
    An RDF 'Incremental Establish' operation execution is in progress for device group 
    'devgroup1'. Please wait... 
    Write Disable device(s) on RA at target (R2)..............Done. 
    Suspend RDF link(s).......................................Done.
    Mark target (R2) devices to refresh from source (R1)......Started. 
    Device: 054 ............................................. Marked. 
    Mark target (R2) devices to refresh from source (R1)......Done. 
    Suspend RDF link(s).......................................Done. 
    Merge device track tables between source and target.......Started. 
    Device: 09C ............................................. Merged. 
    Merge device track tables between source and target.......Done. 
    Resume RDF link(s)........................................Done. 
    
    The RDF 'Incremental Establish' operation successfully initiated for device group 
    'devgroup1'. 
  2. Confirm that the state of the EMC Symmetrix Remote Data Facility pair is synchronized.


    phys-newyork-1# symrdf -g devgroup1 verify
    
    All devices in the RDF group 'devgroup1' are in the 'Synchronized' state.
  3. Split the pair by using the symrdf split command.


    phys-paris-1# symrdf -g devgroup1 -noprompt split
    
    An RDF 'Split' operatiaon execution is in progress for device group 'devgroup1'. 
    Please wait... 
    
    Suspend RDF link(s).......................................Done. 
    Read/Write Enable device(s) on RA at target (R2)..........Done. 
    The RDF 'Split' operation device group 'devgroup1'. 
  4. Enable all the volumes to be scanned.


    phys-newyork-1# vxdctl enable
    
  5. Import the VERITAS Volume Manager disk group, dg1.


    phys-newyork-1# vxdg -C import dg1
    
  6. Verify that the VERITAS Volume Manager disk group was successfully imported.


    phys-newyork-1# vxdg list
    
  7. Enable the VERITAS Volume Manager volume.


    phys-newyork-1# /usr/sbin/vxrecover -g dg1 -s -b
    
  8. Verify that the VERITAS Volume Manager volumes are recognized and enabled.


    phys-newyork-1# vxprint
    
  9. Register the VERITAS Volume Manager disk group, dg1, in Sun Cluster software.


    phys-newyork-1# scconf -a -D type=vxvm, name=dg1, \
    nodelist=phys-newyork-1:phys-newyork-2
    
  10. Add an entry to the /etc/vfstab file on phys-newyork-1.


    phys-newyork-1# /dev/vx/dsk/dg1/vol1 /dev/vx/rdsk/dg1/vol1 \
    /mounts/sample ufs 2 no logging
    
  11. Create a mount directory on newyork.


    phys-newyork-1# mkdir -p /mounts/sample
    phys-newyork-2# mkdir -p /mounts/sample
    
  12. Create an application resource group, apprg1, by using the scrgadm command.


    phys-newyork-1# scrgadm -a -g apprg1
    
  13. Create the HAStoragePlus resource in apprg1.


    phys-newyork-1# scrgadm -a -j rs-hasp -g apprg1 -t SUNW.HAStoragePlus \
    -x FilesystemMountPoints=/mounts/sample -x AffinityOn=TRUE \
    -x GlobalDevicePaths=dg1 \
  14. Confirm that the application resource group is correctly configured by bringing it online and taking it offline again.


    phys-newyork-1# scswitch -Z -g apprg1
    phs-newyork-1# scswitch -F -g apprg1
    
  15. Unmount the file system.


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


    phys-newyork-1# scswitch -F -D dg1
    
  17. Verify that the VERITAS Volume Manager disk group was deported.


    phys-newyork-1# vxdg list
    
  18. Reestablish the EMC Symmetrix Remote Data Facility pair.


    phys-newyork-1# symrdf -g devgroup1 -noprompt establish
    

    Initial configuration on the secondary cluster is now complete.

ProcedureHow to Create a Copy of the Volume Manager Configuration

This task copies the volume manager configuration from the primary cluster, cluster-paris, to LUNs of the secondary cluster, cluster-newyork, by using the VERITAS Volume Manager commands vxdiskadm and vxassist command.


Note –

The device group, devgroup1, must be in the Split state throughout this procedure.


  1. Confirm that the pair is in the Split state.


    phys-newyork-1# symrdf -g devgroup1 query
    
            Source (R1) View                 Target (R2) View     MODES           
    --------------------------------    ------------------------ ----- ------------
                 ST                  LI      ST                                    
    Standard      A                   N       A                                   
    Logical       T  R1 Inv   R2 Inv  K       T  R1 Inv   R2 Inv       RDF Pair    
    Device  Dev   E  Tracks   Tracks  S Dev   E  Tracks   Tracks MDA   STATE       
    -------------------------------- -- ------------------------ ----- ------------
    
    DEV001  00EC RW       0        0 NR 00EC RW       0        0 S..   Split       
    DEV002  00ED RW       0        0 NR 00ED RW       0        0 S..   Split      
  2. Import the VERITAS Volume Manager disk group.


    phys-newyork-1# vxdg -C import dg1
    
  3. Verify that the VERITAS Volume Manager disk group was successfully imported.


    phys-newyork-1# vxdg list
    
  4. Enable the VERITAS Volume Manager volume.


    phys-newyork-1# /usr/sbin/vxrecover -g dg1 -s -b
    
  5. Verify that the VERITAS Volume Manager volumes are recognized and enabled.


    phys-newyork-1# vxprint
    
  6. Register the VERITAS Volume Manager disk group, dg1, in Sun Cluster software.


    phys-newyork-1# scconf -a -D type=vxvm, name=dg1, \
    nodelist=phys-newyork-1:phys-newyork-2
    
  7. Create a VERITAS Volume Manager volume.

  8. Synchronize the VERITAS Volume Manager information with the Sun Cluster device group and verify the output.


    phys-newyork-1# scconf -c -D name=dg1, sync
    phys-newyork-1# scstat -D
    
  9. Create a mount directory on phys-newyork-1.


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


    phys-newyork-1# scrgadm -a -g apprg1
    
  11. Create the HAStoragePlus resource in apprg1.


    phys-newyork-1# scrgadm -a -j rs-hasp -g apprg1 -t SUNW.HAStoragePlus \
    -x FilesystemMountPoints=/mounts/sample -x AffinityOn=TRUE \
    -x GlobalDevicePaths=dg1
    
  12. If necessary, confirm that the application resource group is correctly configured by bringing it online and taking it offline again.


    phys-newyork-1# scswitch -z -g apprg1 -h phys-newyork-1
    phs-newyork-1# scswitch -F -g apprg1
    
  13. Unmount the file system.


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


    phys-newyork-1# scswitch -F -D dg1
    
  15. Verify that the VERITAS Volume Manager disk group was deported.


    phys-newyork-1# vxdg list