Dell PowerVault TL4000 SCSI Reference Guide - Page 24

Field, descriptions, Parameter, Length

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LOG SELECT (4Ch) The LOG SELECT command provides a means for the host to clear the event log in the media changer. This event log is maintained in the media changer internal NVRAM and is therefore resistant to power failures. The only method to clear the event log is by means of a LOG SELECT command. Byte 0 1 2 3 4 5 6 7 8 9 Bit 7 (MSB) 6 LUN PC 5 4 3 2 Operation Code (4Ch) Reserved Reserved Reserved Reserved Reserved Reserved Parameter List Length Control 1 0 PCR SP (0) (LSB) Field descriptions: PCR: The Parameter Code Reset (PCR) bit is not supported. Must be set to zero. SP: Saving log Parameters is not supported. Must be set to zero. Parameter List Length: The Log Select parameters are not supported. 3-10 TL2000 and TL4000 SCSI Reference

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LOG
SELECT
(4Ch)
The
LOG
SELECT
command
provides
a
means
for
the
host
to
clear
the
event
log
in
the
media
changer.
This
event
log
is
maintained
in
the
media
changer
internal
NVRAM
and
is
therefore
resistant
to
power
failures.
The
only
method
to
clear
the
event
log
is
by
means
of
a
LOG
SELECT
command.
Bit
7
6
5
4
3
2
1
0
Byte
0
Operation
Code
(4Ch)
1
LUN
Reserved
PCR
SP
(0)
2
PC
Reserved
3
Reserved
4
Reserved
5
Reserved
6
Reserved
7
(MSB)
Parameter
List
Length
8
(LSB)
9
Control
Field
descriptions:
PCR:
The
Parameter
Code
Reset
(PCR)
bit
is
not
supported.
Must
be
set
to
zero.
SP:
Saving
log
Parameters
is
not
supported.
Must
be
set
to
zero.
Parameter
List
Length:
The
Log
Select
parameters
are
not
supported.
3-10
TL2000
and
TL4000
SCSI
Reference