Dell PowerVault TL4000 SCSI Reference Guide - Page 33

Error, Event, Structure

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8 Number of Warning This 4 byte unsigned counter specifies the number of 0 0 Entries Warning entries in the trace buffer. 9 Number of This 4 byte unsigned counter specifies the number of 0 0 Configuration Change Configuration Change entries in the trace buffer. Entries Error Log Page (33h) This page consists out of a Page Header followed by a FIFO containing the last 64 error events. This log data is helpful to determine the error history of the media changer. Bit 7 6 5 4 3 2 1 0 Byte 0 Reserved Page Code (33h) 1 Reserved 2 - 3 Page Length 4 6211 Up to maximum 64 Hardware Error event structures (64*97 bytes) Field descriptions: Page Code: The Page Code echoes the page code that was specific in the LOG SENSE CDB. Page Length: The Page Length specifies the total number of bytes contained in this log page, not including the four bytes of the header. Error event structures: This field contains a dump of the last error events. Up to 64 error event structures are returned in this page. Error Event Structure Every error event structure consists of two parts: a header and its data. The event header contains info about event type, source, timestamp, and data length. The event data returns specific info about the error event. Appended to the event data is a error event description of maximum 80 ASCII characters with clear written text about the error event. See description in next structure: Byte 0 1 2 3 4 5 - 6 7 - 10 11 12 13 Bit 7 (MSB) DU(0) (MSB) 6 5 4 3 2 1 0 DS(1) Parameter Code TSD(0) ETC(0) TMC(0) Reserved Parameter Length (5Dh) Event type (80h) Source module ID of Error Event Timestamp of Error Event Reserved Length of Error Event data (n) Reserved (LSB) LP(0) Chapter 3. Supported SCSI Commands 3-19

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8
Number
of
Warning
Entries
This
4
byte
unsigned
counter
specifies
the
number
of
Warning
entries
in
the
trace
buffer.
0
0
9
Number
of
Configuration
Change
Entries
This
4
byte
unsigned
counter
specifies
the
number
of
Configuration
Change
entries
in
the
trace
buffer.
0
0
Error
Log
Page
(33h)
This
page
consists
out
of
a
Page
Header
followed
by
a
FIFO
containing
the
last
64
error
events.
This
log
data
is
helpful
to
determine
the
error
history
of
the
media
changer.
Bit
7
6
5
4
3
2
1
0
Byte
0
Reserved
Page
Code
(33h)
1
Reserved
2
-
3
Page
Length
4
-
6211
Up
to
maximum
64
Hardware
Error
event
structures
(64*97
bytes)
Field
descriptions:
Page
Code:
The
Page
Code
echoes
the
page
code
that
was
specific
in
the
LOG
SENSE
CDB.
Page
Length:
The
Page
Length
specifies
the
total
number
of
bytes
contained
in
this
log
page,
not
including
the
four
bytes
of
the
header.
Error
event
structures:
This
field
contains
a
dump
of
the
last
error
events.
Up
to
64
error
event
structures
are
returned
in
this
page.
Error
Event
Structure
Every
error
event
structure
consists
of
two
parts:
a
header
and
its
data.
The
event
header
contains
info
about
event
type,
source,
timestamp,
and
data
length.
The
event
data
returns
specific
info
about
the
error
event.
Appended
to
the
event
data
is
a
error
event
description
of
maximum
80
ASCII
characters
with
clear
written
text
about
the
error
event.
See
description
in
next
structure:
Bit
7
6
5
4
3
2
1
0
Byte
0
(MSB)
Parameter
Code
1
(LSB)
2
DU(0)
DS(1)
TSD(0)
ETC(0)
TMC(0)
Reserved
Reserved
LP(0)
3
Parameter
Length
(5Dh)
4
Event
type
(80h)
5
-
6
Source
module
ID
of
Error
Event
7
-
10
Timestamp
of
Error
Event
11
Reserved
12
Length
of
Error
Event
data
(
n
)
13
(MSB)
Chapter
3.
Supported
SCSI
Commands
3-19