Required attributes for Linux
Required attribute
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Description
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BlockDevice
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Block device for mount point.
Type and dimension: string-scalar
Examples:
/dev/sdc1, /dev/vx/dsk/dg/volume
If the device is LVM2 volume, then you must specify the BlockDevice as:
/dev/mapper/volume-group-logical-volume
LVM2 volume example: /dev/mapper/lvg-lvolume
If the file system type is NFS, then specify the BlockDevice as: server:/path/to/share
NFS device example: vcsonelnx1.symantec.com:/usr/share1
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FsckOpt
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Use this attribute to specify options for the fsck command. You must correctly set this attribute for local mounts. If the mount process fails, the fsck command is executed with the specified options before it attempts to remount the block device. Its value must include either -y or -n . Refer to the fsck manual page for more information.
The -y argument enables the VxFS file systems to perform a log replay before a full fsck operation.
For NFS mounts, the value of this attribute is not applicable and is ignored.
Type and dimension: string-scalar
Default: -n
VxFS example: -y -o full
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FSType
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Type of file system.
Supports vxfs, ext2, ext3, nfs, or reiserfs.
Supports vxfs, bind, ext2, ext3, nfs, or reiserfs.
Type and dimension: string-scalar
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MountPoint
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Directory for mount point.
Type and dimension: string-scalar
Example: /mnt/apache1
Example: "/mnt/apache1"
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Optional attributes for Linux
Optional attribute
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Description
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CkptUmount
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If the value of this attribute is 1, this attribute automatically unmounts VxFS checkpoints when the file system is unmounted.
If the value of this attribute is 0, and checkpoints are mounted, then failover does not occur.
Type and dimension: boolean-scalar
Default: 1
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MountOpt
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Options for the mount command. Refer to the mount manual page for more information.
Do not specify -o in the MountOpt field.
Type and dimension: string-scalar
Example: rw
Example: "rw"
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VxFSMountLock
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This attribute is applicable to Veritas (VxFS) file systems. It controls the agent's use of the locking feature provided by vxfs to prevent accident unmounts.
If the value of this attribute is 0, the agent does not lock the mount point when the resource is brought online. It does not monitor the status of the lock when the resource is online. No warnings appear if the mount has been locked with a key different than "VCS".
If the value of this attribute is 1, during online, the agent uses the key "VCS" to lock the mount point. The monitor agent function monitors the locks during every cycle.
-
If the mountpoint is not locked, the agent locks it.
-
If the mountpoint is already locked with a key other than "VCS", the agent logs a warning. It then requests that you run the Chgmntlock action agent function.
During offline, the agent, as required, unlocks using whatever key needed.
Type and dimension: boolean-scalar
Default: 0
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SecondLevelMonitor
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This attribute is only applicable to NFS client mounts.
If the value of this attribute is 1, this attribute enables detailed monitoring of an NFS mounted file system.
Type and dimension: boolean-scalar
Default: 0
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SecondLevelTimeout
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This attribute is only applicable for an NFS client mount.
This attribute is the timeout (in seconds) for the SecondLevelMonitor/Detail monitoring of NFS Mounts.
Type and dimension: integer-scalar
Default: 30
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SnapUmount
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If the value of this attribute is 1, this attribute automatically unmounts VxFS snapshots when the file system is unmounted.
If the value of this attribute is 0, and snapshots are mounted, then failover does not occur.
Type and dimension: boolean-scalar
Default: 0
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AccessPermissionChk
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If the value of this attribute is set to 1 or 2, the monitor verifies that the values of the MntPtPermission, MntPtOwner, and MntPtGroup attributes are the same as the actual mounted file system values. If any of these do not match the values that you have defined, a message is logged.
If the value of this attribute is 2, and if the mounted file system permissions do not match the attribute values, the state of the resource is set to offline.
Type and dimension: integer-scalar
Default: 0
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CreateMntPt
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If the value of this attribute is 1 or 2, and a mount point does not exist, the agent creates a mount point with system default permissions when the resource is brought online. If the permissions of the mount point is less than 555, a warning message is logged.
If the value of this attribute is 2, the mount point is deleted when the resource is brought offline. The mount point gets deleted only if it is empty, which is also true for recursive mount points.
Type and dimension: integer-scalar
Default: 0
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MntPtGroup
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This attribute specifies the group ownership of the mounted file system. The agent verifies the group ownership of the mounted file system every monitor cycle if the value of the AccessPermissionChk attribute is not 0.
Type and dimension: string-scalar
Example: grp1
Example: "grp1"
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MntPtOwner
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This attribute specifies the user ownership of the mounted file system. The agent verifies the user ownership of the mounted file system every monitor cycle if the value of the AccessPermissionChk attribute is not 0.
Type and dimension: string-scalar
Example: usr1
Example: "usr1"
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MntPtPermission
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This attribute specifies the permissions of the mounted file system in absolute format of a four-digit octal. The agent verifies the mode of the mounted file system every monitor cycle if the value of the AccessPermissionChk attribute is not 0.
Type and dimension: string-scalar
Example: 0755
Example: "0755"
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OptCheck
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The value of this attribute determines if VCS should verify the mount options. The state of the resource is determined based on the result of the verification.
If set to 0 (default), the mount options are not checked.
If the value of the OptCheck attribute is 1, 2 or 3, a check is performed to see if the mount command options that you have specified for VCS are set in the MountOpt attribute. The MountOpt attributes should be the same as the actual mount command options. If the actual mount options differ from the MountOpt attribute, a message is logged. The state of the resource depends on the value of this attribute.
If the value of the attribute is 1, the state of the resource is unaffected.
If the value is 2, the state of the resource is set to offline.
If the value is 3, state of the resource is set to unknown.
Type and dimension: integer-scalar
Default: 0
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RecursiveMnt
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If the value of this attribute is 1, VCS creates all the parent directories of the mount point if necessary.
Type and dimension: boolean-scalar
Default: 0
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ReuseMntPt
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If the same mount point needs to be specified in more than one mount resource, set the value of this attribute to 1. Note that this attribute only accepts a value of 1 or 0.
To use this attribute, the cluster administrator needs to add this attribute to the arglist of the agent. Set the appropriate group and resource dependencies such that only one resource can come online on a system at a time.
Type and dimension: integer-scalar
Default: 0
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