HP StorageWorks Storage System Scripting Utility reference (September 2005)

• Vraid1—Provides the highest level of data protection but uses the most space. It duplicates data

written to one disk onto a backup disk. In a multidisk conﬁguration, Vraid1 mirrors each pair of

disks to each other. These disk pairs can then be striped to create a virtual disk.

• Vraid5—Provides a moderate level of data protection. This method distributes the parity

information among all disk members. If one drive fails, the failed disk can be recreated af ter it is

replaced.

VDISK=

Thesourcevir

tual disk for this snapshot.

WORLD_WIDE_LUN_NAME=

Sets the World Wide LUN Name.

ADD SYSTEM

Use the ADD SY STEM command to initialize an uninitialized array and to create a default disk group.

You must select an uninitialized array before issuing the ADD SYSTEM command. If the system is already

initialized, the command is rejected.

Using the LS S

YSTEM command (see LS SYSTEM) to display the names of the available uninitialized

arrays, the uninitialized array displays as Uninitialized Storage System [WWN of the

storage cell].

After initi

alization is complete, the utility changes its default prompt back to NoSystemSelected.

Because the

array’s name changed from the u ninitialized string to the name given with the ADD SYSTEM

command, yo

u must reselect the array. Issue the SELECT SYSTEM command using the new name of

the array.

NOTE:

Appendix A includes a conﬁguration example that explains the sequence of commands you can use to

initializ

e an uninitialized array.

Syntax

ADD SYSTEM <system_name> DEVICE_COUNT=

Switches

The following switches are available with the AD D SYSTEM command.

COMMENT=

This is an optional switch that associates a user-deﬁned comment with the new array. A maximum of 128

characters is allowed, and the string must be enclosed in double quotes.

CONSOLE_LUN_ID=

The LUN used for console communication after array creation. If set to zero, no console LUN is presented

to the host.

DEVICE_COUNT=

Thenumberofphysicaldiskstouseforthedefaultdiskgroupofthisarray. Thelimitisthenumberof

available disks in the array. The default and minimum value is 8.

HP StorageWorks Storage System Scripting Utilit y reference