Adaptec 2120S - SCSI RAID Controller Uživatelská příručka stáhnout pdf (Strana 334)

13-12

Adaptec SCSI RAID Software Reference Guide

In addition, there are other array properties that enable you to

control the various array settings during creation. See Array

Definition Block Properties on page 13-16 for the complete list of array

properties.

Note: You can configure each individual channel on the

controller using the property, which specifies the SCSI ID

number of the controller on the channel.

Initializing Drives

By default, when you use playback mode to create arrays, the ACU

initializes only those drives specified by the Drives property

keyword in the script file. It performs this initialization step before

creating any new arrays. For example, consider a script file that

defines the following new arrays:

■ RAID 1 (mirror) with the property Drives=0:0:0, 1:0:0

■ RAID 5 with the property Drives=0:1:0, 0:2:0, 0:3:0

As a result of executing this script file, the ACU initializes all five of

the drives comprising the two arrays before creating any arrays.

Any other drives connected to the controller are not affected.

Initializing a drive automatically deletes any existing arrays with

that drive as their member. For example, if you specify drive 0:0:0 in

an array’s Drives property and that drive happens to be part of a

RAID 0 (stripe) array, the ACU deletes the stripe array when it

initializes the drive. Note that existing arrays with drive members

that are not specified in any Drives property within the script are

not affected.

In some cases, you might want the ACU to initialize all drives

connected to the controller, even those that are not specified in a

script’s Drives property. This ensures that all drives are initialized

and any existing arrays are deleted before any new arrays are

created. You can specify InitializeAll=Yes within any array

definition to instruct the ACU to perform this task. Unlike most

array properties, the InitializeAll=Yes property is a global

ACU setting and does not apply only to the array whose definition it

appears in. Thus, you need only specify InitializeAll=Yes once

within any array definition to produce the desired action.

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Adaptec 2120S - SCSI RAID Controller Uživatelská příručka Strana 334