Hp StorageWorks XP10000 Disk Array Bedienungsanleitung Seite 145

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The LDEV must be read/write-enabled.
TheLDEVorLUSEvolumemustnotbeapoolvolume(pool-VOL).
TheLDEVmustnotbeajournalvolume.
TheLDEVmustnotbearemotecommanddevice.
The LDEV must not contain extents.
Install CV fun
ction
This function denes and installs one or more CVS volumes under an existing volume (free space in a
VDEV). You can assign a specic number of physical cylinders (for mainframe systems) or MBs (for open
systems) to each CVS volume for maximum control over the volume size. When you specify the capacity
and an emulation type other than OPEN-V for a CVS volume to be created, the Install CV function
automatical
ly creates and formats the CVS volume in sufcientfreespace.YoumustspecifynewCUand
LDEV numbers for the created CVS volume. The created CVS volume contains the user-specied number
of user cylinders and a predetermined number of control cylinders according to the emulation type.
NOTE:
If you selec
t free space and perform an Install CV operation, CVS volumes are created only in the
selected free space.
ForOPEN-Vvolumes,therearefourwaystocreateCVSvolumes(Table 22). You can specify from 46 MB
(50 cylinders) up to the VDEV's maximum capacity for a CVS volume's capacity.
Table 22 Creating CVS volumes using Install CV (for OPEN-V)
Install CV method
Description
Specify size and number Used to specify the capacity and number of CVs in the CVS volume
you want to create.
Divide free space by number Used to create CVS volumes by specifying the number of CVs in the
CVSvolumetobecreated.
Divide free space by size Used to create CVS volumes by specifying the capacity of CVs in the
CVSvolumetobecreated.
Set remaining space as volume Used to create a CVS volume using the remaining space on the VDEV.
NOTE:
CVS functions are not available for OPEN-L and OPEN-M volumes.
NOTE:
The insta
ll CV function allocates CVS volumes in the order in which the function nds sufcient free
space for the CVS volumes. For optimum space allocation, allocate CVS volumes in descending order
of capacity.
Table 23 lists the CVS specications and the minimum and maximum CVS volume capacities for
mainframe and open systems.
HP StorageWorks LUN Conguration and Security Manager XP user guide for the
XP12000/XP10000/SVS200
14 5
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