M2488 Tape Scsi Commands; Table 4-1. M2488 Scsi Commands - Fujitsu M2488 Product Manual

TAPE UNIT SCSI COMMANDS
4-3

M2488 TAPE SCSI COMMANDS

The SCSI commands used with the M2488 are described in Table 4-1. For a more detailed description
of each command, refer to the paragraph listed in the PARAGRAPH column. The Command Descrip-
tion Block format is shown in paragraph 4-3.1 on page 4-4.
OP
COMMAND
CODE
00h TEST UNIT READY
01h REWIND
03h REQUEST SENSE
05h READ BLOCK LIMITS
08h READ
0Ah WRITE
READ REVERSE
0Fh
(optional)
10h WRITE FILEMARKS
11h SPACE
12h INQUIRY
RECOVER BUFFERED
14h
DATA (optional)
15h MODE SELECT
16h RESERVE UNIT
17h RELEASE UNIT
19h ERASE
1Ah MODE SENSE
4-2

Table 4-1. M2488 SCSI Commands

DESCRIPTION
Provides a means to check if the logical unit is ready.
Causes a rewind to BOT.
Requests that the target transfer sense data to the initia-
tor.
Requests the target's block length limits for the logical
unit.
Transfers zero or more blocks to the initiator beginning
with the next block on the logical unit.
Transfers zero or more blocks from the initiator to the
current position on the logical unit.
Requests that the tape unit transfer zero or more blocks
of data to the initiator.
Requests the write of zero or more filemarks to tape.
Changes the logical unit position relative to the current
position.
Provides a means for an initiator to request information
regarding parameters of the target and any attached
.
peripheral devices
Requests that the tape unit transfer zero or more blocks
of data from the tape unit's buffer to the initiator. The
command is used to retrieve data contained in the
buffer that had been sent earlier by the initiator to be
written to the medium [tape].
Provides a means for the initiator to specify medium,
logical unit, and peripheral device parameters to the tar-
get by sending data relevant to such parameters in a
data phase during the command.
Reserves the specified logical unit for the exclusive use
of the requesting initiator.
Release previously reserved logical units for the
requesting initiator.
Causes part or all of the remaining medium to be erased
beginning from the current logical position.
Provides a means for the target to report medium, logi-
cal unit, and peripheral device parameters to the initia-
tor by sending data relevant to such parameters in a data
phase during the command.
CG00000-011503 REV. A
M2488 PRODUCT GUIDE
PARAGRAPH
4-3.30 on page 4-138
4-3.26 on page 4-115
4-3.23 on page 4-103
4-3.15 on page 4-68
4-3.14 on page 4-63
4-3.31 on page 4-140
4-3.18 on page 4-80
4-3.33 on page 4-150
4-3.29 on page 4-135
4-3.6 on page 4-18 &
5-3 on page 5-17
4-3.21 on page 4-98
4-3.12 on page 4-51
& 5-2 on page 5-1
4-3.25 on page 4-112
4-3.22 on page 4-101
4-3.5 on page 4-15
4-3.13 on page 4-56
& 5-2 on page 5-1
April 1997