File System Mount Point Directory Name Standards
This document describes the standards for assigning AIX filesystem
mount point (MtPt) directory names. A single standard has been developed
for use in standalone, High Availability, and Disaster Recovery
environments. This filesystem mount point directory naming standard
provides the mechanism to assign enterprise wide unique names to all AIX
filesystem mount point directory's and will eliminate naming conflicts
in the event of a manual or automated failover, or if multiple instances
of an application are running on a single server.
To assign enterprise wide unique LV names, the system administrator
must first define the Resource Groups,
Volume Groups, and
Logical Volumes. Once these have been defined, the filesystem mount
point directory names can be assigned. Typically a filesystem mount
point is required for each logical volume, therefore the mount point can
usually be based on the logical volume name, or at a minimum the
resource group name.
To define a filesystem mount point directory name, obtain the 8 character resource group name, then
depending upon the applications filesystem requirements, use the RG name
as the mount point, or add sub-directories to make it enterprise wide
unique.
The filesystem mount point directory name shall consist of at least
8 characters, but may be of a variable length:
/ + ApplicationCode + Environment + Function + Company + Sequence ID + ( LV Sequence ID or Directory Structure )
3 char + 1 char + 1 char + 2 char + 1 char + 4 or more char
As an example, a resource group named "egaaptu0", may have multiple
file systems associated with it:
RG Name
Component
|
Optional
Logical Volume
Sequence ID
|
Optional
Sub-Directories
|
Filesystem
Mount Point
|
|
egaaptu0
|
|
db2_08_01/bin
|
/egaaptu0/db2_08_01/bin
|
|
egaaptu0
|
|
db2_08_01/data
|
/egaaptu0/db2_08_01/data
|
|
egaaptu1
|
mq01
|
|
/egaaptu1mq01
|
|
egaaptu1
|
mq02
|
|
/egaaptu1mq02
|
|
egaaptu1
|
mq03
|
|
/egaaptu1mq03
|
|
