Creating lun expansion volumes – HP XP P9500 Storage User Manual

Page 18

Advertising
background image

Retrieving information about Logical Volumes in LUN Expansion

Use the Luse_Get_def.spd template to retrieve information from the system about LDEVs that
are used in LUSE volumes, or about LDEVs that can be combined into LUSE volumes.

To retrieve information about logical volumes, execute the following command:

[LUSE] GET_ALL

The output is saved to a file.

Example spreadsheet:

LDEV information appears in layers.

Content

Identifier

Layer

Top LDEV in the LUSE volume (00,00,00)

None

Top

Other LDEVs in the LUSE volume (00,00,01; 00,00,02)

+

Middle

LDEVs available for a LUSE volume (00:00:10, 00:01:00,
00:10:01)

None

Bottom

Each line shows one LDEV, identified by Logical Disk Controller (LDKC), CU, and LDEV numbers.
This format is indicated in the comment lines, which begin with the pound sign (#).

The text between commas populates a spreadsheet column. In the example above, in the top layer,
“00” populates column A. In the middle layer, “+” populates column A, “00” populates column
B, and so on.

Creating LUN Expansion volumes

Use the Luse_Expansion_def_.spd spreadsheet template to create LUSE volumes. The volumes
to be created are layered similarly in the spreadsheet as the output for retrieving LUSE volume
information:

You can use between 2 and 36 LDEVs in a LUSE volume.

Top layer LDEVs are arranged in ascending order.

LDEVs for the LUSE volume must be arranged in ascending order.

The following image shows an example spreadsheet:

18

LUN Expansion operations

Advertising