3Ware 9550SXU-12 User Manual page 251

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will give better performance with applications that have a lot of random reads
and writes. In general, the smaller the stripe size, the better the sequential I/O
and the worse the random I/O. The larger the stripe size, the worse the
sequential I/O and the better the random I/O.
,
Write Cache Auto Verify
set the policies for the unit. These policies can also be set and changed on the
Controller Settings page. For details about these policies, see "Unit Policies"
on page 225.
Note:
If the configuration window disappears while you are selecting drives, 3DM 2
may have refreshed. Click Create Unit again. If desired, you can reduce the
frequency with which information refreshes in 3DM 2, or disable refresh temporarily,
on the 3DM 2 Settings page.
You can specify the StorSave Profile to be used for the unit. Three
StorSave.
profiles are available: Protection, Balanced, and Performance. For more
information, see "Setting the StorSave Profile for a Unit" on page 123.
Rapid RAID Recovery.
use, , or
All Rebuild Disable
unclean shutdowns. Rebuild
between and
All Rebuild
disabled for the unit, it cannot be re-enabled. For details, see "Rapid RAID
Recovery" on page 126.
, and
Overwrite ECC.
Determines which Rapid RAID Recovery option to
. will apply the policy to both rebuilds and
All
will apply only to rebuilds. You can switch
settings, but, once Rapid RAID Recovery is
Maintenance page
These check boxes let you
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