HP 3PAR HP-UX Implementation Guide

7 Using Symantec Storage Foundation

As of HP 3PAR OS 3.1.2, the virtual volume (VV) WWN increased from 8 bytes to 16 bytes. The

increase in WWN length may cause the Symantec ASL to incorrectly identify the array volume

identification (AVID) number, subsequently resulting in use of a different naming convention for

DMP disk devices.

NOTE: This issue does not occur with Storage Foundation 6.1, which is compatible with both

8-byte and 16-byte WWNs.

The standard naming convention is as follows:

<enclosure_name><enclosure_number> <AVID>

For example:

3pardata4_5876

3pardata4_5877

3pardata4_5878

If the virtual volumes in use report a 16-byte WWN, the ASL extracts an AVID number of 0 for all

VVs, and Symantec sequentially enumerates the DMP devices to generate a unique DMP disk

name. In this case, the resulting disk names would be:

3pardata4_0

3pardata4_0_1

3pardata4_0_2

The name scheme used does not impact DMP functionality. However, if you want the DMP name

to contain the VV AVID number, Symantec provides updated ASLs that will properly extract the

AVID number. If AVID naming is desired, use the following ASL versions:

Storage Foundation 5.1 (all) 3PAR ASL version 5.1.103.100 or later

Storage Foundation 6.0 to 6.0.4 ASL version 6.0.10.300 or later