Creating a volume with a DRL log

To create a volume with a traditional DRL log by using the vxassist command

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

Note the following restrictions:

If neither logmap_len nor loglen is specified 

  • loglen is set to a default value that is based on disk group alignment.
  • maplen is set to a reasonable value.

If only 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 logmap_len 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.