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 the Version A.11.31.04..................
List of Tables 1 4 New Fixes in the Version A.11.31.04...............................................................................................
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.11.31.04 supports Serviceguard A.11.18 and the Veritas Cluster File System (CFS). In a CFS environment, all nodes in the Serviceguard cluster can concurrently access the files in the CFS. The NFS servers in the cluster can concurrently access and export directories in the CFS. As a result, CFS enables NFS clients (typically located outside the cluster) to concurrently use multiple NFS servers to access files.
Limitations The following lists the limitations of using Serviceguard NFS Toolkit A.11.31.04 with Serviceguard A.11.18 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 the Version A.11.31.04 Serviceguard NFS Toolkit A.11.31.04 provides the following defect fixes: Table 1 New Fixes in the Version A.11.31.04 CR ID Problem Description QXCR1000817723 NFS file locking fails after starting multiple NFS packages concurrently on the same node in a Serviceguard environment. QXCR1000863530 The NFS monitor script fails if the NFS_SERVER_VERSMIN is changed from the default value.
NOTE: This problem impacts only HA NFS server systems running AutoFS. You can safely use AutoFS on client systems. Cause HA NFS uses relocatable IP addresses that migrate from a primary NFS server to an adoptive node during a fail-over event. If you start AutoFS on an HA NFS server after Serviceguard is running, these relocatable IP addresses are included in AutoFS' list of local IP interfaces.
