Quantum Instruments DLT 7000 User Manual

Page 199

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SCSI Commands

Quantum DLT 7000 Tape System

5-95

MODE SELECT (6) / (10) Command (15h) / (55h) (continued)

Table 5–47 EEPROM Vendor Unique Page Parameters (continued)

Name

Value

Rep.

Default

Length

(Bytes)

Usage

MAXBURSTSIZE

ASCII

Binary

0080h

2

The value in this field specifies the
maximum amount of data to be
transferred without disconnecting. A
value of 0 sets no limit. This value is given
in 512 byte increments. For example, a
value of 8 indicates 4K bytes. Values that
are not multiples of 8 are rounded up to
the nearest multiple of 8. Minimum value
of this field is 0000h, maximum is FFFFh.

NODEFERRCVDERR

ASCII

Binary

0

1

The drive reports deferred recovered error
as current recovered error (if set).

NODISCONFXDBLK

ASCII

Binary

1

1

To turn on/off feature that prevents
disconnecting on every fixed block data
transfer

NORDYUAONUNLD

ASCII

Binary

0

1

When set, Not Ready to Ready unit
attention will be removed from the unit
attention queue upon a successful
unload.

PERFMODE

ASCII

Binary

1

1

When set, the drive is tuned for
performance.

When cleared, the drive is tuned for
capacity.

The default for 4 MB cache tape drives is
1 (performance mode). In performance
mode, compression is turned off to keep
the drive streaming, thus improving
performance. If PERFMODE is 0 on 4 MB
cache tape drives, then compression is
turned on, resulting in better capacity.
PERFMODE is ignored by 8 MB cache tape
drives.

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