EN
| 35
Bosch Security Systems | 20 January 2004
DVAS
|
Instruction Manual
|
System Menu
•
Set Rebuild Priority
Use this setting to increase the amount of IO
time dedicated to rebuilding a critical array. If
host activity is high, a higher rebuild priority
may be needed so the array rebuild completes
in a shorter time period.
•
Set Verify Utility
Set either Surface Scanning or Parity Scrub for
the next array verify utility, once the utility
interval has expired. Surface Scanning uses very
little array IO time, whereas Parity Scrub uses
much more. Surface scanning ensures that all
data blocks on all array disks are readable.
Parity Scrub reads all array data and ensures
parity (redundant) data is intact. Any parity
inconsistencies will be corrected. Both utilities
will correct (where possible) unreadable blocks,
by using the parity data to rebuild missing data
onto a remapped block.
Click
Execute Verify Utility NOW
to force the
selected array utility to run now.
•
Set Verify Utility Execute Interval
Use the above settings to set the internal time
between verify cycles, or click
Execute verify
utility NOW
to start the selected verify utility.
Disable Dangerous Commands
Confirm, and click
Disable Dangerous
Commands
, to put the GUI into this mode.
In this mode, any configuration commands
that will cause data loss or result in loss of
host communications are not permitted.
Read Only
Confirm and click
Read Only,
and no
configuration of the ATA RAID system is
permitted.
•
Reboot Controller
Click
Reboot Controller
to reboot the ATA
RAID controller. While rebooting, configured
arrays and volumes are not accessible from the
attached host system(s). Before using this
function, it is advised to cease all host IO. It
may also be necessary to reboot the host
system(s) once the RAID controller has
rebooted.
•
Set Spare Mode
Inserted Disks Automatically used as Hot Spares
Any disk not belonging to a RAID array will be
used as a hot spare/rebuild disk. A hot spare
disk must be at least the same capacity as the
smallest RAID array member.
Inserted disks must be manually configured as
hot spares. No newly inserted disk or existing
unused disk will be used as a rebuild disk. The
disk must first be configured as a hot spare, so it
can be used by a degraded/critical array.
10
LOG OFF
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