Hp Workstation xw8000 User Manual download pdf (Page 45)

3-13

Adaptec Storage Manager-Browser Edition

4 Now you can accept the default name for the new array or enter

one of your choice. The name you choose must be unique, and

can be up to 15 standard ASCII characters in length.

5 When you click Finish, the system will create the new array.

Advanced Options

Creating an array by clicking Advanced in the Create Array wizard

follows the same basic process as the previous instructions, but at

each step there are additional options for you to use.

Step 1 of 3 in the Advanced area of the Create Array wizard offers

the following additional options:

■ Spanned Volumes and RAID Volumes—As described in

Chapter 1, Introduction, a spanned volume concatenates segments

from two or more drives to form a volume, while a RAID volume

concatenates two or more arrays of the same type.

■ Enable or Disable Write Caching—When write caching is

enabled, the controller stores the data in cache memory on the

controller and will accept another write to this array as soon as

the data from the previous write is safely stored in the

controller’s memory.

Since writing data to memory is much faster than writing it to

the drives, enabling write caching can significantly improve

performance. All data stored in the cache will be written to the

drives when it is most efficient for the controller.

On controllers fitted with a battery, the additional choice

“Enable when protected by battery” is available. Choosing this

option will enable write caching whenever the battery is

operating correctly, and in the event of a power failure the

battery will protect the data currently in cache.

Caution: Default setting for write cache is enabled. This

setting provides the best performance, but in the event of

power failure there is a risk of data loss.

UG.book Page 13 Saturday, October 26, 2002 12:08 PM

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 127 128

No comments

Hp Workstation xw8000 User Manual Page 45