3Ware 7000-2 - Escalade RAID Controller User Manual page 53

results in the most efficient access times for your computer system.
There may be instances when you always want the computer to wait
for the drive to write all the data to disk before going on to its next
task. For this case, you must disable the write cache. To disable the
write cache, select disable from the array's Write Cache State
selection. The default for Write Cache State is enable.
Confirm array configuration
Select the OK button to confirm creating the array or Cancel to
reject it. The array is not actually created and no data will be over-
written until you have finished making all your changes and select
the F8 key.
Note:
or logical unit. If you attempt to create an array over 2
TB the BIOS will display the following message:
"The amount of disk space available exceeds the maxi-
mum allowable capacity. The array capacity will be lim-
ited to 2 TB."
For RAID 5 Arrays
Because of the Read-Modify-Write operations, zeros are first writ-
ten to all drives in the array before the array is functional. The
screen shown in Figure 14 appears after selecting OK to confirm
array creation.
If desired, the write-zeros operation can be aborted by rebooting the
system. Once booted to the operating system, the array goes into
initialization mode after a delay of up to ten minutes. The advan-
tage of doing this is that the RAID 5 can be used immediately,
although it will not be fault tolerant until the initialization is com-
plete. The disadvantage of doing this is that it will take longer for
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The current limitation is 2 TB for any physical
3ware Disk Array Configuration Utility
53