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6
When the list of block sizes appears, select a block size. The
allowable block sizes are 8, 16, 32, 64 (the default), or 128 KBytes.
(This menu does not appear if the array is a RAID 1 array with only
two drives.) The default block size gives the best overall
performance. Formatting begins immediately.
7
When you see the message
Initialization of [array name]
is complete, press
any key to return to the Disk Array Operations menu.
NOTE
You will need to install the operating system after the array is initialized.
Refer to “Installing Windows NT 4.0” on page 7.
Adding and Deleting Spares
Dedicated spare disks (spares) are an important data protection and
real-time recovery feature of RAID 1 arrays (RAID 0 arrays do not
support spares). Up to two dedicated spares can be defined for each
array. If a disk in an array fails while the computer is running, a spare is
activated immediately to take its place. The array software
automatically reconstructs the necessary data on the new disk, and
array operation continues uninterrupted.
Adding a Dedicated Spare.
When you create an array you have the option of adding one or two
dedicated spares. You can also add dedicated spares to an existing
array at a later time. You cannot add dedicated spares to an array if:
•
The array already has two dedicated spares
•
The remaining single disks are not at least as large as the smallest
disk in the selected array
Follow these steps to add one or two dedicated spares to an already-
existing array:
1
Select
Disk Array Operations
from the Main Menu.
2
Select
Add/Delete Spare Drive
from the Disk Array Operations menu.
3
Select the array to which you want to add the dedicated spare.
4
Select
Add Spare Drive
from the Add/Delete Spare menu.