A VSN in point notation always consists of six characters, with the format pp[pp].[xy]z. Where:
pp[pp] | catalog ID (catid), (2-4 characters; A..Z, 0..9), the “PUB” prefix is not allowed |
. | period (1 character) = type identifier |
[xy]z | sequential number within a pubset/volume set, (1-3 characters) = sequential number |
A pubset or volume set in point notation can consist of up to 255 volumes.
Examples: AA.001, AB.309, XYZ.23, OTTO.0, J19P.8
With SF pubsets, the catalog ID corresponds directly to the “catalog ID” part of the name in the VSN. With SM pubsets, the catalog ID differs from all volume set names of the SM pubset concerned and it therefore differs from the “catalog ID” part of the VSN name for all volumes of the pubset.
Maximum number of disks per pubset/volume set for point notation
The maximum number of volumes per pubset/volume set depends on the allocation unit AU (ALLOCATION-UNIT), the volume types and the length of the sequential number.
AU | Sequential range x | Sequential range y | Sequential range z | Maximum number of |
6 KB | 0 | 0 | A..V, 0..9 | 32 |
8 KB | A..Z, 0..9 | A..Z, 0..9 | A..Z, 0..9 | 36 / 255 1 |
64 KB | A..Z, 0..9 | A..Z, 0..9 | A..Z, 0..9 | 36 / 255 1 |
1 A maximum of 36 volumes may be addressed per pubset with a single character sequential number