HP XP Array Manager Software - Manual (Page 113)

Description Subfield Field
Assign internal volumes to a parity group by entering a Start
from number. For Device Manager, when you specify the first
number (1-16384), the second number is automatically
assigned.
The format for specifying external parity groups is, for
example, "E1" or "E16384".
- Parity Group
From the list, select the cache logical partition resource (CLPR)
value for the internal volumes.
- CLPR
Select Enable to stop write operations to cache and to stop
I/O from the host when the write operations to the external
volume fails.
Select Disable to write I/O from the host during retry
operations to cache memory, even when the writing operation
to the external volume fail. When write operations to the
external volume returns to normal, all the data in cache
memory is written to the external volume.
The default is Disable.
- Inflow control
Select Enable, after receiving the data into the internal storage
system cache memory, the internal storage system signals the
host that an I/O operation has completed and then
asynchronously writes the data in cache memory to the
external storage system.
If you select Disable, the internal storage system signals the
host that an I/O operation has completed only after the local
storage system has synchronously written the data to the
external storage system.
The default is Enable.
- Cache mode
Volume labels are searchable, and therefore recommended
as a way to find volumes.
Specify and add a LDEV label.
- Label
The smallest number of sequential numbers. The Initial value
is not required but can be useful for differentiation when vir-
tualizing multiple volumes. For each volume, the number is
in ascending order of LDEV ID.
- Initial value
Reflect these labels to the storage system is checked by default
so that naming is consistent between XP7 Command View
AE and the storage system. If the selected storage system
does not support label setting, this item is not displayed.
-
Reflect these labels
to the storage sys-
tem
Resource groups listed by storage system, parity group, LDEV
ID, and storage port. Resource group appears only when
multiple resource groups are allocated and each resource
group has LDEV IDs of internal volumes that belong to the
selected internal storage system.
- Resource group
Virtualizing storage capacity (THP/Smart)
This module describes how to virtualize storage capacity.
User Guide 113