HP C2246 Technical Reference Manual page 78

Mode Select, Mode Sense
Page Code 01H, Read/Write Error Recovery Parameters (Savable Page)
Bit
Byte
7
I
6
I
5
I
4
I
3
I
2
I
1
I
0
00
PS
I
Reserved
I
Page Code
=
OlH
01
Page Length in Bytes:
SCSI (CCS) = 06; SCSl-2
=
OA
02 AWRE
I
ARRE
I
TB
I
RC
I
EER
I
PER
I
DTE
I
DOR
03
SCSI (CCS): Retry Count; SCSI-2: Read Retry Count
04 Correction Span
05
Head Offset Count
06 Data Strobe Offset Count
OT SCSI (CCS): Recovery time Limit (last byte)
SCSI-2 Bytes Follow
07 Reserved
08
Write Retry Count
09 Reserved
10-11
(MSB=lO} Recovery Time Limit (LSB=ll)
Page 01H Parameter Values
Parameter
Default
Changeable
Allowable Ranges
Values Values
(hex)
AWRE (Automatic Write Reallocation) 0 Yes
T:
Disable; 1
=
Enable
ARRE (Automatic Read Reallocation) 0 Yes
0
=
Disablej 1
=
Enable
TB (Transfer Block) 0
Yes 0
=
Disable; 1
=
Enable transfer of errored
data
RC (Read Continuous)
0
No
n/a
EER (Enable Early Recovery)
0 No
n/a
.
PER (Post Error) 1 Yes
0
=
Disable; 1
=
Enable posting of recovered
errors
DTE (Disable Transfer on Error) 0 Yes 1
=
Disablej 0
Enable transfer on recovered
errors
DCR (Disable Correction) 0 Yes 1
=
Disable; 0
Enable error correction
Read Retry Count 08 Yes Maximum allowable retries
=
255 (FFH)
Correction Span (Bjts per Sector) 48 Yes 0
1
24 (18H), 72 (48H)
Head Off set Count 0 No
n/a.
Data Strobe Offset Count 0 No
n/a
Wrjte Retry CoWlt (SCSI-2 only)
8 Yes 0 to 255
Recovery Time Limit: SCSI {CCS)
FF No
SCSI (CCS}: FF:::: maximum number of retrys
allowed.
Recovery Time Limit: SCSI-2
0000 Yes
SCSl-2: 0000
=
use defaults (i.e. Retry
Counts).
A-22 SCSI Command Descriptions