Fujitsu Siemens Computers pmn User Manual page 176

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Name
Name of the LVG. The data of the LVG is kept under this name in CentricStor. The LVG
is defined by entering a name. The name contains a maximum of 6 characters (only
letters, numbers and "_").
This field can only be modified until the LVG has been activated using "Distribute and
Activate".
LV Size
This is used to specify the size of the LVs in an LVG. The following options are available:
"STANDARD" corresponds to 900 MB.
i
i
The cache partition must be at least as large as the size assigned to the LVG. If this is
not the case the assignment is rejected and the following message is issued:
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take no action. Once the request to delete an LVG has been successfully issued
and activated in the system, the action is an asynchronous action and cannot
be influenced by the user.
For CentricStor systems which were configured with version 3.1A or earlier the
DTV file system must be migrated before larger logical volumes are supported.
If you have not yet done this the assignment of an LV size > 2 GB is rejected
and the following message is issued:
LVGs with LVG-Type > 2 GB rejected because DTV-FileSystem has not
yet been migrated: <LVG name>
If LVs larger than 5 GB are used, adequate TVC dimensioning (caches) must
be ensured.
If large LVs are used and the TVC is too small, this results in more frequent
displacement. This can have a significant effect on the LV mount times
depending on the volume size and the drive type (e.g. with 200 GB approx. 90-
120 min.).
LVG(s) rejected because at least one cache partition is too small
GXCC
U41117-J-Z125-7-76