Adaptec 5405Z User's Guide download pdf (Page 100)

Appendix D: Using the Array Configuration Utility for DOS ● 100

Method Keyword

Method is an optional keyword, indicating which method to use when creating a redundant

(RAID 1, 1E, 10, 5, 5EE, 50, 6 and 60) array. Possible values:

● Build (the default)—Perform a Build/Verify process on the array. Takes longer than Clear,

but allows you to begin using the array immediately.

● Clear—Clear the array. Faster than a Build/Verify process, but you have to wait for the

operation to be completed before you can begin using the array.

● Quick Init—Makes the array available immediately, but does not accomplish a Build/

Verify. Parity and mirror information is created as data is written to the disk drive (called

full-stripe write mode), which reduces overall array performance. Maximum performance

is achieved by starting and completing a Build/Verify.

● Skip Init—If multiple disk drives fail in the same logical drive, you may be able to recover

the data by recreating the logical drive without the initialization step. Omitting the

initialization step reconstructs the logical drive metadata without modifying or destroying

any other data on the disks.

For example:

Method=Build

ReadCache Keyword

ReadCache indicates whether the array uses read caching.

Possible values:

● Ye s (default)—Enable read caching.

● No—Disable read caching.

For example:

ReadCache=Yes

Size Keyword

The Size keyword specifies the size of the array. Specify Maximum (the default) to create an

array using the maximum available space, based on the array type and drives selected.

Otherwise, specify the size as an integer or a decimal number, followed by the unit

keyword MB (megabytes), GB (gigabytes), or TB (terabytes).

Note:

A unit keyword is required with a numeric size value. If no unit keyword is specified, the

ACU exits with an error.

For example:

Size=2.5GB

Size=300MB

Size=Maximum

StripeSize Keyword

The StripeSize keyword specifies the stripe size (in KB) written to each member of a striped

array (RAID 0, 10, 5, 5, 5EE, 50, 6 or 60).

The possible values for StripeSize are 16, 32, 64, 128, 256, 512 and 1024 KB. Default is 256.

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Adaptec 5405Z User's Guide Page 100