DataDirect Networks EF2800, User Manual

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DataDirect Networks EF2800 FC RAID Storage System User Guide (V 1.0)
C r e a t i n g a n d M a n a g i n g A r r a y s & P a r t i t i o n s
To toggle the display between the drive model number, serial
number, and the node and WWN, press <T>.
If the array you are creating is a RAID 3, RAID 4, RAID 5, RAID 10,
or RAID 50, the Chunk Size screen displays
(Figure 97)
.
10.
If the Chunk Size screen displays, select the chunk size and press
<Enter>.
The chunk size is the amount of contiguous data that is written to
an array member before moving to the next member of the array.
To determine the appropriate chunk size, refer to your operating
system documentation. For example, the default chunk size for
Windows NT and many other operating systems is 64 KB. If you are
using the array for a database with very small records, you may
want to use a smaller chunk size.
If the array you are creating is a RAID 3, RAID 4, RAID 5, RAID 50,
or Mirrored array, the Array Init Options screen displays. The
current option has an * next to it.
11.
If the Array Init Options screen displays, select the option you want
and press <Enter>.
- Offline Initialization: Using this option means you must wait for
the array initialization process to finish before using the array.
It uses the zero method to create the array, which is faster than
the verify method.
- Online Initialization: Using this option lets you begin using the
array immediately after creating it, while the array initialization
process runs. It uses the verify method to create the array,
which takes longer than the zero method.
Figure 97. Select Chunk Size for Array