Serviceguard NFS Toolkit A.11.31.
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Table of Contents Serviceguard NFS Toolkit Overview......................................................................................................5 Announcement.......................................................................................................................................6 Limitations..............................................................................................................................................7 New Fixes in Version A.11.31.06......................
List of Tables 1 4 New Fixes in the Version A.11.31.06...............................................................................................
Serviceguard NFS Toolkit Overview HP Serviceguard Network File Server (NFS) Toolkit uses HP Serviceguard to set up highly available NFS servers. You must set up a Serviceguard cluster before you can set up Highly Available (HA) NFS. Serviceguard NFS Toolkit is a separately purchased set of configuration files and control script, which you can customize for your specific needs. An NFS server is a host that exports its local directories and makes them available for client hosts to mount using NFS.
Announcement Serviceguard NFS Toolkit A.11.31.06 supports both legacy and modular package configurations with HP Serviceguard A.11.18 and later versions. The support for legacy and modular package configurations is available for serviceguard clusters configured with both VxFS (non-CFS) and Veritas Cluster File System (CFS). In a CFS environment, all nodes in the Serviceguard cluster can concurrently access the files in the CFS.
Limitations Following are the limitations of using Serviceguard NFS Toolkit A.11.31.06 with Serviceguard A.11.18 and later versions and CFS: • Lock coherency for multiple NFS servers is not supported. NFS file lock coherency is not supported when multiple NFS servers are concurrently accessing a file. Lock operations do not return an error, but lock coherency is not guaranteed. This may cause data corruption or cause an application to hang.
New Fixes in Version A.11.31.06 Serviceguard NFS Toolkit A.11.31.06 provides the following defect fixes: Table 1 New Fixes in the Version A.11.31.06 CR ID Problem Description QXCR1000951315 Under certain circumstances, NFS locks could be lost during legacy package migration. QXCR1000951343 The verification method used by nfs_defined_halt_cmds to check whether the rpc.statd, rpc.lockd and nfsd daemons have terminated has been modified.
Known Problems and Workarounds This section lists known problems, probable cause, and appropriate workarounds for Serviceguard A.11.31.06: Problem If you run AutoFS on NFS servers that participate in a HA NFS cluster (through Serviceguard), the behavior of building a local IP interface list may render Serviceguard unable to migrate an NFS package during a fail-over event. NOTE: This problem impacts only HA NFS server systems running AutoFS. You can safely use AutoFS on client systems.
