Dell PowerVault TL4000 SCSI Reference Guide - Page 40

Device, Capabilities

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Device Capabilities page (1Fh) The Device Capabilities Page defines the characteristics of the element types used by this medium changer. The initiator cannot change this information. Byte 0 1 2 3 4 5 6 7 8 - 11 12 13 14 15 16 19 Bit 7 6 5 4 3 2 Reserved SPF (0) Page Code (1Fh) Additional Page Length (12h) Reserved DT I/E (1) (1) Reserved ACE MT→RA Reserved MT→DT MT→I/E (0) (1) (1) ST→RA Reserved ST→DT ST→I/E (0) (1) (1) I/E→RA Reserved I/E→DT I/E→I/E (0) (1) (0) DT→RA Reserved DT→DT DT→I/E (0) (1) (1) Reserved MT→WA Reserved MT↔DT MT↔I/E (0) (0) (0) ST→WA Reserved ST↔DT ST↔I/E (0) (0) (0) I/E→WA Reserved I/E↔DT I/E↔I/E (0) (0) (0) DT→WA Reserved DT↔DT DT↔I/E (0) (0) (0) Reserved 1 ST (1) VTRP MT→ST (1) ST→ST (1) I/E→ST (1) DT→ST (1) MT↔ST (0) ST↔ST (0) I/E↔ST (0) DT↔ST (0) 0 MT (0) S2C MT→MT (0) ST→MT (0) I/E→MT (0) DT→MT (0) MT↔MT (0) ST↔ST (0) I/E↔ST (0) DT↔ST (0) Field descriptions: DT: Data Transfer. The value for this field is 1. Tape drives can store cartridges. I/E: Import/Export. The value for this field is 1. The Import/Export element can store cartridges. ST: Storage. The value reported for this field is 1. The storage elements can store cartridges. MT: Medium Transport. The value for this field is 0. The medium transport element cannot store cartridges. S2C: SMC-2 Capabilities field is set to 1. This bit indicates that this page supports the new VRTP, ACE, XX-RA, and XX-WA fields. VTRP: Volume Tag Reader Present. When set this bit indicates that the library does have a bar code reader. When set to zero the library does not have a bar code reader. ACE: Auto Clean Enabled. When set to one, the library shall automatically clean the data transfer element. When set to zero the library does not automatically clean the data transfer element. 3-26 TL2000 and TL4000 SCSI Reference

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Device
Capabilities
page
(1Fh)
The
Device
Capabilities
Page
defines
the
characteristics
of
the
element
types
used
by
this
medium
changer.
The
initiator
cannot
change
this
information.
Bit
7
6
5
4
3
2
1
0
Byte
0
Reserved
SPF
(0)
Page
Code
(1Fh)
1
Additional
Page
Length
(12h)
2
Reserved
DT
I/E
ST
MT
(1)
(1)
(1)
(0)
3
Reserved
ACE
VTRP
S2C
4
MT
→
RA
Reserved
MT
→
DT
MT
→
I/E
MT
→
ST
MT
→
MT
(0)
(1)
(1)
(1)
(0)
5
ST
→
RA
Reserved
ST
→
DT
ST
→
I/E
ST
→
ST
ST
→
MT
(0)
(1)
(1)
(1)
(0)
6
I/E
→
RA
Reserved
I/E
→
DT
I/E
→
I/E
I/E
→
ST
I/E
→
MT
(0)
(1)
(0)
(1)
(0)
7
DT
→
RA
Reserved
DT
→
DT
DT
→
I/E
DT
→
ST
DT
→
MT
(0)
(1)
(1)
(1)
(0)
8
-
11
Reserved
12
MT
→
WA
Reserved
MT
↔
DT
MT
↔
I/E
MT
↔
ST
MT
↔
MT
(0)
(0)
(0)
(0)
(0)
13
ST
→
WA
Reserved
ST
↔
DT
ST
↔
I/E
ST
↔
ST
ST
↔
ST
(0)
(0)
(0)
(0)
(0)
14
I/E
→
WA
Reserved
I/E
↔
DT
I/E
↔
I/E
I/E
↔
ST
I/E
↔
ST
(0)
(0)
(0)
(0)
(0)
15
DT
→
WA
Reserved
DT
↔
DT
DT
↔
I/E
DT
↔
ST
DT
↔
ST
(0)
(0)
(0)
(0)
(0)
16
-
19
Reserved
Field
descriptions:
DT:
Data
Transfer.
The
value
for
this
field
is
1.
Tape
drives
can
store
cartridges.
I/E:
Import/Export.
The
value
for
this
field
is
1.
The
Import/Export
element
can
store
cartridges.
ST:
Storage.
The
value
reported
for
this
field
is
1.
The
storage
elements
can
store
cartridges.
MT:
Medium
Transport.
The
value
for
this
field
is
0.
The
medium
transport
element
cannot
store
cartridges.
S2C:
SMC-2
Capabilities
field
is
set
to
1.
This
bit
indicates
that
this
page
supports
the
new
VRTP,
ACE,
XX-RA,
and
XX-WA
fields.
VTRP:
Volume
Tag
Reader
Present.
When
set
this
bit
indicates
that
the
library
does
have
a
bar
code
reader.
When
set
to
zero
the
library
does
not
have
a
bar
code
reader.
ACE:
Auto
Clean
Enabled.
When
set
to
one,
the
library
shall
automatically
clean
the
data
transfer
element.
When
set
to
zero
the
library
does
not
automatically
clean
the
data
transfer
element.
3-26
TL2000
and
TL4000
SCSI
Reference