EN
| 34
Bosch Security Systems | 20 January 2004
DVAS
|
Instruction Manual
|
System Menu
Available Information:
When the new USER / ADMIN settings have been
entered, press the relevant
Set ____ Password
button.
Only alter one user at a time.
9.7
Cache Settings
DVAS Series disk array has a write cache memory,
which is normally enabled. The cache memory holds
data being written to disk, enabling the controller to
confirm that a command is complete before data is
physically written. A battery backup protects cached
data for up to three days in the event of a power
failure during an unfinished write operation. The
DVAS Series disk array controller automatically
completes any unfinished write operations once power
has been restored, provided the cached data is
available.
Current Write Cache State
Shows how cache is currently being used.
Manually Override Current Write Cache Status
Check this box to force the cache on or off without
rebooting.
Desired Write Cache State
Use these radio buttons to select the preferred write
cache state; Enabled or Disabled.
Allow SCSI Host to Override Write Cache
Configuration
Some SCSI commands force write cache not to be
used. Check the box to override this.
Once the required changes have been made, click
Save Settings
to continue.
9.8
System Administration
The
ADMIN
tab allows muting and resounding of the
audible alarm when there is a problem, and clearing
events that require manual responses from the
problem page.
•
Silence the Audible Alarm
Click this button to silence the audible alarm. If
this does not solve the problem that caused the
alarm to sound, click the red X at the top right
of the window to examine the
Problems
page.
•
Re-sound the Audible Alarm
Click this button to restart the alarm if there is a
fault present.
•
Acknowledge Lost Data Warning
When the RAID controller cannot reconstruct
array data due to lack of access to the
redundant data (two or more blocks not
accessible, or two disks failed), the following
warning displays:
The RAID controller has found
some unrecoverable data blocks.
To clear this
warning, click
Acknowledge Lost Data
Warning
. For information regarding bad blocks,
click
Bad Blocks
.
Figure 44 Cache Configuration
Figure 45 System Administration
Information
Description
Current ADMIN /
USER Login Password
Requirement
Displays whether security is enabled.
Change ADMIN /
USER Login Password
Requirement to
Use the radio buttons to select the
security mode for either ADMIN or
USER.
Login User Name is
Fixed to
Both USER and ADMIN user names are
fixed (cannot be altered).
Password
Type the new password in the text box.
Write
Number of host writes.
Confirm Password
