Parameter key options for the mount statement and mount commands

The parameter key options for the mount statement and mount commands are as follows:

-3

Specifies that the file system is to be allocated in 31-bit mode regardless of system capabilities.

-b <block>

<block> specifies the blocking factor that is used to set the size of a TFS block.

The following chart shows how <block> relates to the TFS block size:

0: 4 K
1: 8 K
2: 16 K
3: 32 K
4: 64 K

Default: 0

–c <cache>

<cache> is the amount of buffer storage in MB that TFS uses in the 32-bit address range to support a 64-bit TFS. This parameter is ignored for file systems that are allocated in the 31-bit range. The default is calculated based on the TFS block size such that the numbers of cache buffers is 256.

-ea count

Allows the TFS file system to automatically grow count times. The TFS grows 1-K blocks each time it grows. For the default 4-K block size, the TFS grows 4 MB. The extension occurs when the file system fills up, before the file system full message.

Restriction: The sum of auto-extend and manual extend cannot exceed 500.

-em count

Allows the TFS file system to manually grow count times. The TFS grows 1-K blocks each time it grows. For the default 4-K block size, the TFS grows 4 MB. If -em is specified, any excess block allocation space is added to count.

Restriction: The sum of auto-extend and manual extend cannot exceed 500.

-fsfull(threshold,increment)

Sets FSFULL monitoring to the specified values. When specified, this option overrides the default setting.

threshold is a number in the range 1-99. When the temporary file system is threshold percent full, a message is issued.
increment is a number in the range 1-99. When the temporary file system becomes increment full or empty, any threshold messages that were previously issued is deleted.

-fsfull can be specified in uppercase or lowercase.

-g <group>

<group> is the numeric GID that is to be assigned to the root directory of the file system. The default is 0.

-nofsfull

Sets FSFULL monitoring to the TFS default of fsfull(99,5). When specified, this option overrides the TFS default setting.

-p <perm>

<perm> is the permission bits in octal to be assigned to the root directory of the file system. The default is 0777.

-s <size>

<size> is the number of MB for the file system. If the value specified is larger than the size that can be supported, the maximum size is used. The default is 1.

Note: If the size specified for the file system size is too large, the maximum file system size is used and a message is not issued. If the extend factors will result in the file system size becoming larger than the maximum size, the extend factors are ignored. A message is not issued and the file system will not have extend capability.

-u <uid>

<uid> is the numeric UID that is to be assigned to the root directory of the file system. The default is 0.

Invalid mount options are ignored.