HP XP P9500 Storage - Manual (Page 13)

LDEV grouping function
In the RAID Manager before supporting P9500, it was required to define a copy group for the
configuration definition file on each host. When changing copy group information, editing of the
configuration definition file was required on each host. In the RAID Manager supporting P9500,
the group information can be defined at a time and stored in the storage system. When changing
group information, only one configuration file needs to be edited, saving time and effort and
eliminating the chance for error due to mismatching edits.
This new functionality is implemented using LDEV names, device groups, and copy groups:
•
Copy group: A group that is defined by specifying two device groups: one device group from
the primary side and one device group from the secondary side.
•
Device group:
A group that is configured with one or more LDEV. ◦
◦ A device group can only belong to one copy group.
◦ When creating a mirrored or cascaded pair, each copy group must have unique device
groups and devices names.
•
Device name:
A name that can be given to one LDEV per the device group. ◦
◦ Each name is associated with a device group in which the LDEV belongs to.
◦ An LDEV nickname can be given to the LDEV as a unique name for the LDEV that is not
related with device group. Only one LDEV nickname can be given for each LDEV.
◦ Device group:
A group that is configured with one or more LDEVs. –
– A device group can belong to only one copy group
– When creating a mirrored of cascaded pair, each copy group must have unique
device groups and device names.
◦ Copy group: A group that is defined by specifying two device groups: one device group
from primary side and one device group from the secondary side.
Resource group function
Using Resource Group function, a storage administrator in each resource group can access
respective resource groups only. The storage administrator in each resource group cannot access
the other resources except the one that the administrator manages. This can prevent the risk of
destroying the data by another storage administrator in the other resource groups or of leaking
out the data.
Resource group locking function
The resource group locking function prevents conflict among multiple users:
User scripts cannot be guaranteed to work correctly when there are multiple users (Remote Web
Console and SVP). You can use the Lock command while the script is running to ensure completion.
To use the Lock command, user authentication is required.
RAID Manager functions available on the P9500 storage system 13