Specifications

194 en | Firmware Functionality Specifications SCSI to SATA RAID Subsystem | Administrator’s Manual
F.01U.027.802 | V1 | 2006.11 Bosch Security Systems
14.7 Data Safety
Regenerate parity of logical
drives
Supported. Can be manually executed to ensure that bad
sectors do not cause data loss in the event of drive failure.
Scheduled Media Scan Revision 3.34 and above allows Media Scan to be scheduled
starting at a specified start time and repeated at regularly
timed intervals. The start time and time intervals can be
selected from drop-down menus. Start time is manually
entered using its numeric representatives in the following
order [MMDDhhmm[YYYY]], and it reads the date and time
set for the controller’s real-time clock.
The selectable time intervals (the Execution Period) range
from one (1) second to seven (7) weeks.
Each such schedule can be defined to operate on individual
hard drives, all members of a specified logical drive, or
members of selected logical drives. Each schedule can
include up to five (5) logical drives. The RS-232C terminal
interface and RAIDWatch revision 2.0 support this function-
ality.
Bad block auto-reassignment Supported. Automatic reassignment of bad block
Battery backup for cache
memory
Supported. The battery backup solutions provide long-last-
ing battery support to the cache memory when power fail-
ure occurs. The unwritten data in the cache memory can be
committed to drive media when power is restored.
Verification on normal writes Supported. Performs read-after-write during normal write
processes to ensure data is properly written to drives.
Verification on rebuild writes Supported. Performs read-after-write during rebuild write to
ensure data is properly written to drives.
Verification on LD initialization
writes
Supported. Performs read-after-write during logical drive
initialization to ensure data is properly written to drives.
Drive S.M.A.R.T. support Supported. Drive failure is predictable with reference to the
variables detected. Reaction schemes are selectable from
Detect only, Perpetual Clone and Copy + Replace. These
options help to improve MTBF.
Clone failing drive Users may choose to clone data from a failing drive to a
backup drive manually.
Automatic shutdown on over-
temperature condition
Controller automatically starts a shutdown sequence (enter-
ing an idle state receiving no I/O requests) upon the detec-
tion of high-ambient temperature for an extended period of
time.