HP 418800-B21 HP StorageWorks Replication Solutions Manager 4.0.1 user guide ( - Page 154

Resize option

Operations available

Comments

DC-Management

Extend or shrink a host volume or the

underlying virtual disk.

Provides full resizing capability and

integration with the operating system.

With a single step you can resize

the

fi

le system and the underlying

virtual disk simultaneously, simplifying

capacity management.

HP-UX operating

system

•

Non-LVM host volumes using the

Veritas

fi

le system can be resized

using the

fsadm

command if

online JFS is available, and the

extendfs

command if online JFS

is not available.

•

LVM host volumes can be extended

in two steps.

First, the volume

group and logical volume has to

be extended using

vgmodify

and

other LVM commands. Then the

fi

le

system is extended using the

fsadm

command if online JFS is available,

and the

extendfs

command if

online JFS is not available.

See the following website for information

on resizing disks:

h

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6

4

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•

Command View EVA must be used

to manually resize the underlying

virtual disks before (extend) or after

(shink) resizing the

fi

le system. The

storage stack on the host needs to

be made aware of the change in

the virtual disk’s capacity.

•

Before extending virtual disks on the

EVA, care must be taken to ensure

that the additional capacity can be

used by the host

fi

le system. This

can be a problem if the

fi

rmware

version does not allow shrinking

of the virtual disk to recover the

storage. DC-Management prevents

such accidental grow of virtual

disks by validating the host volume

structure and blocking the operation

if necessary.

•

Extra care must be taken to not

shrink a host volume beyond the

fi

le

system allocated boundaries.

Windows operating

system

Extend (Windows 2003 and Windows

Server 2008) or shrink (Windows

Server 2008) a host volume

fi

le system

using Windows Disk Manager.

•

Does not resize the underlying

virtual disk. It may be necessary to

manually resize the virtual disk to

accommodate the

fi

le system resize

you wish to perform.

•

Before extending virtual disks on the

EVA, care must be taken to ensure

that the additional capacity can be

used by the host

fi

le system. This

can be a problem if the

fi

rmware

version does not allow shrinking

of the virtual disk to recover the

storage. DC-Management prevents

such accidental grow of virtual

disks by validating the host volume

structure and blocking the operation

if necessary.

HP Command View

EVA

Extend or shrink a virtual disk presented

to a host.

Does not provide integration with the

host operating system. You must resize

the

fi

le system manually.

CAUTION:

Care must be taken to not shrink a

virtual disk beyond the boundaries

of usage by either

fi

le systems or

volume/partition managers on the

host.

DC-Management support

The following table lists the general con

fi

guration requirements for using DC-Management.

154

Host volumes

HP 418800-B21 HP StorageWorks Replication Solutions Manager 4.0.1 user guide ( - Page 154

DC-Management support

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