HP Workstation xw8000 - Manual (Page 47)

3-15
Adaptec Storage Manager-Browser Edition
For arrays which need to be initialized such as RAID-1 and
RAID-5, advanced options allow you to select which method is
used to initialize the array and set the priority of the initialization
task.
Step 3 in the Advanced area of the Create Array wizard offers the
following initialization options:
■ Build— For a RAID-1, the data from the primary or master
drive is copied to the secondary or slave drive. For a RAID-5,
correct parity is generated for the entire array.
The advantages of building an array are that the array is
immediately available for use, and that when the build is
complete, the array operates at maximum performance. The
disadvantages are that building takes some time, for a large
array possibly many hours, and performance is impacted until
the build completes.
■ Clear— In this case, the contents of all the drives are cleared.
The advantages of clearing an array are that the process is much
faster than building and when completed, the array operates at
maximum performance. The disadvantage is that the array is
not accessible until the clear completes.
■ Quick— In this case the array is immediately available. The
advantage of quick initialization is that the array is immediately
available with no on-going build. The disadvantage is that the
write performance of a RAID-5 or RAID-50 initialized in this
way is impacted until a Verify with fix Task is run on the array.
■ Initialization Priority— This drop-down list allows you to
adjust the priority of the initialization task. The default setting
is high, and initialization will complete as fast as possible. The
other options are medium and low. Depending on what other
tasks are running on the controller, selecting either of these
options may cause the initialization to take significantly longer.
UG.book Page 15 Saturday, October 26, 2002 12:08 PM