HP Serviceguard Storage Management Suite A.03.02 Release Notes (March 2012)

SG SMS 5.0.1/v3 installation fails on September 2009 OE Update Release or later,
if Full-VxVM 5.0 (B9116CB) is installed (QXCR1000973245)
A SG SMS 5.0.1 bundle cannot be installed over Full-VxVM 5.0 (B9116CB). To install a SG SMS
5.0.1 bundle, follow these steps:
1. Upgrade to Full-VxVM 5.0.1 (B9116DB).
2. Install the SG SMS 5.0.1 bundle.
Contact your HP representative if you need assistance.
Clusters with nodes running different OS version are not supported with CVM/CFS
“Mixed OS” clusters (clusters that have some nodes running HP-UX 11i v2 and other nodes running
HP-UX 11i v3 ) are not supported with SG SMS bundles that include CVM/CFS (T2775xx, T2776xx,
T2777xx). For more information see the HP Serviceguard Version A.11.20 Release Notes at:
www.hp.com/go/hpux-serviceguard-docs → HP Serviceguard
Use of HP-UX mount Commands for CFS Environments
Once disk group and mount point multi-node packages are created with Serviceguard, it is critical
to use the CFS commands, including cfsdgadm, cfsmntadm, cfsmount, and cfsumount. If
the HP-UX mount and umount commands are used, serious problems such as writing to the local
file system instead of the cluster file system could occur.
Any form of the HP-UX mount command (for example, mount -o cluster, dbed_chkptmount,
orsfrac_chkptmount) must not be used in an HP Serviceguard Storage Management Suite with
CFS environment. These non-CFS commands could cause conflicts with subsequent CFS command
operations on the file system or the Serviceguard packages. Use of HP-UX mount commands will
not create an appropriate multi-node package, which means cluster packages will not be aware
of file system changes. Instead, use the CFS commands cfsmount or cfsumount.
Guidelines for Improved CFS Mount Point packages, Disk Group packages, and
Nested Mounts
A maximum of four levels of nesting is supported with CFS nested mounts. VxFS, Check Point
(ckpt), and snapshot cluster file systems are supported with CFS nested mounts. However, ckpt
and snapshot cluster file systems can only be mounted at the end of the nesting sequence, not at
the beginning or middle of the nesting sequence.
Use Case Examples
• Creating Modular Disk Group and Mount Point Packages:
Create a package configuration file: cmmakepkg -m sg/cfs_all
/etc/cmcluster/cfspkg1.ascii
1.
2. Edit the following parameters in the cfspkg1.ascii package configuration file:
◦ package_name cfspkg1
◦ node_name node1
◦ node_name node2
◦ node_name node3
◦ node_name node4
◦ cvm_disk_group cvm_dg1_node1
◦ cvm_activation_mode "node1=sw node2=sw node3=sw node4=sw"
◦ cfs_mount_point /cfs1
◦ cfs_volume cvm_dg1_node1/lvol1
Product Issues and Limitations 37