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SFHA Solutions 6.0/6.0.1: Use Cases for the vxassist maxsize option for creating new volumes

Created: 26 Sep 2012 • Updated: 11 Oct 2012
Liz Semmelmeyer's picture

In releases prior to Veritas Storage Foundation and High Availability (SFHA) Solutions 6.0, Veritas Volume Manager (VxVM) provided a two-step approach to creating a volume of the maximum size. You had to run the vxassist maxsize command to find the maximum size of the volume to be created with the given constraints. Then, you had to run the vxassist make command and specify the volume size as the maximum determined by the vxassist maxsize command.

Starting with the SFHA Solutions 6.0 release, you can create a maximum-sized volume with a single command. Specify the vxassist make command with the maxsize option.

VxVM calculates the maximum size available and VxVM uses that size for the length of the created volume. VxVM considers the specified layout type, number of mirrors, and other allocation attributes when it calculates the maximum size. You can also assign a value for the maximum size, to place an upper limit on a volume of maximum size.

The following links provide more information on using the vxassist maxsize option for creating new volumes:

vxassist (1M) manual pages:

vxassist (1M) manual pages for other releases can be found on the SORT website.
 
For information on how to calculate the size of a volume using the vxassist maxgrow option, see the following
Symantec Connect article.