Specifications

190 en | Firmware Functionality Specifications SCSI to SATA RAID Subsystem | Administrator’s Manual
F.01U.027.802 | V1 | 2006.11 Bosch Security Systems
Host LUN geometry:
user configurable default
geometry (Solaris OSes)
• Capacity <64GB: Head=63, Sector=32, Cylinder=?
(depends on capacity)
• 64GB<capacity<128GB:Head=64, Sector=64, Cylin-
der=? (depends on capacity)
• 128GB<capacity<256GB: Head=127, Sector=64, Cylin-
der=? (depends on capacity)
• 256GB<capacity<512GB: Head=127, Sector=127, Cylin-
der=?
• 512GB<capacity<1TB: Head=255, Sector=64, Cylin-
der=? (depends on capacity)
• 1TB<capacity: Head=225, Sector=225, Cylinder=?
(depends on capacity)
• For capacity larger than 1TB, please refer to
Section 9 Enclosure Management
User configurable geometry
range:
Sector: 32, 64, 127, 255 or Variable
Head: 64, 127, 255 or Variable
Cylinder: <1024, <32784,<65536 or Variable
Drive motor spin-up Supported. The controller will send spin-up (start unit) com-
mand to each drive at the 4 sec. intervals.
Drive-side tagged command
queuing
Supported. User adjustable up to 128 for each drive
Host-side maximum queued I/
O count
User adjustable up to 1024
Maximum concurrent host LUN
connection
User adjustable up to 64
Number of tags reserved for
each Host-LUN connection
User adjustable up to 256
Controller shutdown Flushes cached contents upon the detection of critical con-
ditions, e.g., a high temperature condition persists for a long
time
Drive I/O timeout User adjustable
I/O channel diagnostics Supported; please contact your dealer for more details
Maximum Drive Response
Time
(Guaranteed Latency I/O)
User adjustable from 160 to 960ms. If a disk drive fails to
return data on read requests before the timeout value is
exceeded, the array immediately generates data from the
parity data and the other members of a logical drive.
Drive roaming Supported; array configuration stored on disk drives