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Veritas Storage Foundation 5.1 SP1 Cluster File System Installation Guide (5900-1510, April 2011)

ManualsBrandsHP ManualsSoftwareHP-UX 11i Volume Management (LVM/VxVM) Software
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Storage Foundation Cluster File System problems
If there is a device failure or controller failure to a device, the file system may
become disabled cluster-wide. To address the problem, unmount file system on
all the nodes, then run a full fsck. When the file system check completes, mount
all nodes again.
Unmount failures
The umount command can fail if a reference is being held by an NFS server. Unshare
the mount point and try the unmount again.
Mount failures
Mounting a file system can fail for the following reasons:
■ The file system is not using disk layout Version 6 or 7.
■ The mount options do not match the options of already mounted nodes.
■ A cluster file system is mounted by default with the qio option enabled if the
node has a Quick I/O for Databases license installed, even if the qio mount
option was not explicitly specified. If the Quick I/O license is not installed, a
cluster file system is mounted without the qio option enabled. So if some nodes
in the cluster have a Quick I/O license installed and others do not, a cluster
mount can succeed on some nodes and fail on others due to different mount
options. To avoid this situation, ensure that Quick I/O licensing is uniformly
applied, or be careful to mount the cluster file system with the qio/noqio
option appropriately specified on each node of the cluster.
See the mount(1M) manual page.
■ A shared CVM volume was not specified.
■ The device is still mounted as a local file system somewhere on the cluster.
Unmount the device.
■ The fsck or mkfs command is being run on the same volume from another
node, or the volume is mounted in non-cluster mode from another node.
■ The vxfsckd daemon is not running. This typically happens only if the
CFSfsckd agent was not started correctly.
■ If mount fails with an error message:
vxfs mount: cannot open mnttab
/etc/mnttab is missing or you do not have root privileges.
449Troubleshooting information
Storage Foundation Cluster File System problems