Veritas Storage Foundation 5.1 SP1 Advanced Features Administrator"s Guide (5900-1503, April 2011)

# vxassist -g diskgroup make volume length mirror=2 \

logtype=drl [loglen=len-blocks] [logmap_len=len-bytes]

This command creates log subdisks that are each equal to the size of the DRL

log.

Note the following restrictions

■ loglen is set to a default value that

is based on disk group alignment.

■ maplen is set to a reasonable value.

If neither logmap_len nor loglen is

specified

■ For pre-version 110 disk groups,

maplen is set to zero.

■ For version 110 and greater disk

groups, maplen is set to use all the

bytes available in the on-disk map.

If only loglen is specified

■ For pre-version 110 disk groups,

logmap_len is not applicable.

■ For version 110 and greater disk

groups, maplen must be less than the

number of available bytes in the

on-disk map for the default log

length.

If only logmap_len is specified

Setting the DRL map length

To set a DRL map length

Stop the volume to make the DRL inactive.

Type the following command:

# vxvol -g diskgroup set [loglen=len-blocks] \

[logmap_len=len-bytes] volume

This command does not change the existing DRL map size.

Note the following restrictions

Migrating data between platforms

Maintaining your system

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