Setting Policies for a Controller through 3BM
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79
2
On the Policy Control screen,
Tab
through these fields, making the
choices you want to use:
Staggered Spinup:
Select
enabled
to enable staggered spinup;
disabled
to disable it.
Number of Drives Per Spinup:
Select the number of drives—from 1
to 4, 8, or 12, depending on the number of ports on the controller.
Delay between spinup:
Select the number of seconds—from 1 to 6.
Staggered Method:
Select either ATA-6 or SATA OOB as the type of
staggered spinup you want to use. For staggering to work correctly,
the drives must support the selected method.
3
Tab
to
the
OK
button and press
Enter
.
You will notice a short delay as 3BM makes the policy changes.
Disabling Write Cache on Unit Degrade
You can choose whether you want the write cache to be automatically
disabled when a unit degrades. This enables some higher level recovery, to
cover the case where there is a software RAID layer (using some redundancy)
on top of the 3ware RAID configuration. If case of a second drive failure, the
software RAID layer can still provide redundancy since no data was lost.
When this setting is set to
Yes,
it overrides the write cache setting specified
for a particular unit.
For more information about enabling and disabling the write cache,
see“Enabling and Disabling the Unit Write Cache” on page 95.
To disable write cache when a unit degrades
1
At the main 3BM screen,
Tab
to
Policy
and press
Enter
.
2
On the Policy Control screen,
Tab
to
Disable Write Cache on Unit
Degrade
.
3
Press
Enter
to display the choices, use the
arrow keys
to select
Yes
, and
press
Enter
again to select it.
4
Tab
to the
OK
button and press
Enter
.
You will notice a short delay as 3BM makes the policy changes.
Multi LUN Support and Auto-Carving
Windows 2000, Windows 2003, Windows XP, and FreeBSD 4.x, do not
currently recognize unit capacity in excess of 2 TB. To gain use of the full
capacity in units greater than 2 TB, you can enable auto-carving.
Summary of Contents for 3ware 9000 Series
Page 1: ...3ware Serial ATA RAID Controller Supports the 9000 Series PN 720 0114 01 March 2005 User Guide...
Page 10: ...About This Guide 4 3ware 9000 Series Serial ATA RAID Controller User Guide...
Page 88: ...Configuring Your Controller 82 3ware 9000 Series Serial ATA RAID Controller User Guide...
Page 144: ...Maintaining Units 138 3ware 9000 Series Serial ATA RAID Controller User Guide...
Page 190: ...Glossary 184 3ware 9000 Series Serial ATA RAID Controller User Guide...
Page 202: ...196 3ware 9000 Series Serial ATA RAID Controller User Guide...
