HP XP External Storage Software - Manual (Page 110)

Table 20 AddVolumeSetting Tag Parameters (continued)
Number of
Characters Range of Values Setting Parameter Column in
Spreadsheet
Layer
Capacity of the
LDEV in blocks.
For details, see
“How to Specify
the LDEV
Capacity”
(page 110)
.
4 hexadecimal
digits or fewer 0004 to FFFE SSID assigned to
the range of the
LDEV numbers.
Specify the SSID
written in the file
that you saved by
using the SSID
tag. When you
create an LDEV
that does not
have an SSID,
specify an SSID
that is not written
in this file. For
details on an
SSID, see the HP
StorageWorks
XP24000/XP20000
Virtual LVI/LUN
(VLL) and Volume
Shredder User
Guide.
SSID G
How to Specify the LDEV Capacity
When you specify the LDEV capacity for the AddVolumeSetting tag in a spreadsheet, follow the
instruction in this section depending on the emulation type.
•
When the emulation type is OPEN-V:
Specify the value in the range of 96000 and 8589934592. ◦
◦ An LDEV is created from where a slot starts. Therefore, if you specify the LDEV capacity
indivisible by the slot size (512 blocks), an adjustment area will be created between
where an LDEV ends and where the next LDEV starts. This adjustment area cannot be
used as an LDEV.
You can calculate the adjustment area using the following equation:
Adjustment area capacity = LDEV capacity 512 × 512 – LDEV capacity
The value enclosed in two upward arrows ( ) must be rounded up to the nearest whole
number.
◦ Make sure that the capacity of the external volume is greater than or equal to the capacity
that is the sum of the total capacity of all the LDEVs in the external volume and the total
capacity of the adjustment areas.
Figure 40 (page 111) gives an example of creating four LDEVs of 100,000 blocks each. In
this case, the required capacity of the external volume is 401,056 blocks.
110 Using Spreadsheets for XP External Storage Operations