Quantum DLT 8000 Product Manual page 269

MODE SENSE (6) / (10) Command (1Ah / 5Ah) (continued)
Table 5–57 Device Configuration Page — Field Descriptions
Field Name
PS
Additional Page Length
CAP
CAF
Active Format
Active Partition
WRITE Buffer Full Ratio
READ Buffer Empty Ratio
WRITE Delay Time
DBR
BIS
RSmk
AVC
SOCF
RBO
REW
Description
Parameters Savable. Not supported; must be 0.
This field indicates the number of bytes in the page. Note that this
value does not include bytes 0 and 1. The length is returned on
MODE SENSE and must subsequently be set to the same value when
performing MODE SELECT.
Change Active Partition. Not supported.
Change Active Format. Not supported.
Not supported.
This field indicates the current logical partition number in use. Only
partition 0 is supported.
Indicates how full the buffer should be before restarting writing to
the medium. The tape drive sets this to 0 (unused) since it uses an
automatic adaptive mechanism to dynamically adjust its ratio
according to the average data rates over the SCSI bus.
Indicates how empty the buffer should be before restarting reading
from the medium. The tape drive sets this to 0 (unused) since it uses
an automatic adaptive mechanism to dynamically adjust its ratio
according to the average data rates over the SCSI bus.
Indicates the maximum time (in 100 ms increments) the drive waits
with a partially fully buffer before forcing the data to tape. Note that
the buffer full/empty ratio, which is dynamic, can cause data to be
written sooner than the WRITE delay time value indicates. The WRITE
delay time defaults to 200 ms (C8h). This causes the buffer to be
flushed in 20 seconds. Minimum value is 15 (Fh); maximum value is
6500 (1964h). This represents a range in delay from 1.5 seconds to
11 minutes.
Data Buffer Recovery. Not supported, must be 0.
Block Identifiers Supported. Set to 1.
Report Setmarks. Not supported, must be 0.
Automatic Velocity Control. Set to 0.
Stop on Consecutive Filemarks. Set to 0.
Recover Buffer Order. Set to 0.
Report Early Warning. Set to 0 (do not report early warning EOM on
reads).
Quantum DLT 8000 Tape System
SCSI Commands
5-125