Veritas VxVM and VVR in Service Guard

[Joe Odman]

I have been running VxVM/VVR R3.5 (replication) to remote DR site with one local host. Now migrating this environment to a local SG cluster replicating to remote DR site. Has anyone else actually done this?
Dave

[Michael Steele_2]

a) The general steps of building a SG cluster are build the cluster first and complete failover testing, then volume work, then package work.

a1) Since you have an existing cluster (* NO? *) you can refer to this procedure:

http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/B3936-90048/B3936-90048_top.html&con=/hpux/onlinedocs/B3936-90048/00/00/3-con.html&toc=/hpux/onlinedocs/B3936-90048/00/00/3-toc.html&searchterms=vxvm%7cserviceguard%7clvm&queryid=20030612-061744

If you do not then building the cluster and completing the failover testing is very well documented in HP ServiceGuard I class. I recommend it. Note these commands for building the cluster.

cmquerycl -C cluster.ascii -n node1 -n node2 ...

cmcheckconf -C cluster.ascii (* verify *)

cmapplyconf -v (* install *)

cmruncl (* start cluster *)

http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/B5158-90044/B5158-90044_top.html&con=/hpux/onlinedocs/B5158-90044/00/00/40-con.html&toc=/hpux/onlinedocs/B5158-90044/00/00/40-toc.html&searchterms=cluster%7cvxvm%7cserviceguard%7ccreate&queryid=20030612-062728

a2) Unless I've missed something building the VXVM volumes and mounting the file systems on one node has been completed. So this step only involves deporting the vxvm volumes onto the other nodes. When all disk groups have been deported, you must issue the 'vxdctl' command on all cluster nodes to allow them to access the disk groups. Note these commands:

vxdg deport disk_group
vxdctl enable
vxdg import dg_01
vxvol -g dg_01 startall
mount /dev/vx/dsk/dg_01/myvol /mountpoint

a3) Building the packages is also well documented in the HP class mentioned above. Note this command:

cmmakepkg -s /etc/cmcluster/pkg1/pkg1.sh

[Duncan Edmonstone]

Dave,

I see you have looked at the other thread on the subject of VVR and ServiceGuard. The product IDs that were quoted there (starting with A09574G) do indeed relate to VVR agents for MC/ServiceGuard that you can buy from Veritas. However I think these are almost always delivered as part of a consultancy exercise by Veritas Professional Services. I would talk to your Veritas salesman for more info.

HTH

Duncan