User Manual

SCSI Commands Reference Manual, Rev. J 467
www.seagate.com Parameters for direct access devices
5.3.35 Verify Error Recovery mode page (07h)
The Verify Error Recovery mode page (see table 436) specifies the error recovery parameters the device server shall use during
the VERIFY command and the verify operation of the WRITE AND VERIFY command.
PS bit, SPF bit, PAGE CODE field, SUBPAGE CODE field and PAGE LENGTH field
The parameters saveable (PS) bit, the subpage format (SPF) bit, the PAGE CODE field, the SUBPAGE CODE field, and the PAGE LENGTH field are
defined in
5.3.5.
EER bit, PER bit, DTE bit, and DCR bit
The EER bit, the PER bit, the DTE bit, and the DCR bit (i.e., the error recovery bits) are defined in 5.3.22. The combinations of these bits are
defined in table 405.
VERIFY RETRY COUNT field
The VERIFY RETRY COUNT field specifies the number of times that the device server shall attempt its recovery algorithm during a verify opera-
tion.
VERIFY RECOVERY TIME LIMIT field
The VERIFY RECOVERY TIME LIMIT field specifies in milliseconds the maximum time duration that the device server shall use error recovery pro-
cedures to recover data for an individual command. The device server may round this value as described in 2.3.
When both a retry count and a recovery time limit are specified, the one that requires the least time for data error recovery
actions shall have priority.
To disable all types of correction and retries the application client should set the EER bit to zero, the PER bit to one, the DTE bit to
one, the DCR bit to one, the VERIFY RETRY COUNT field to 00h, and the VERIFY RECOVERY TIME LIMIT field to 0000h.
Table 436 Verify Error Recovery mode page
Bit
Byte
7 6 5 4 3 2 1 0
0 PS SPF (0b) PAGE CODE (07h)
1 PAGE LENGTH (0Ah)
2 Reserved
ERROR RECOVERY BITS
EER PER DTE DCR
3 VERIFY RETRY COUNT
4 Obsolete
5
Reserved formerly
HEAD OFFSET COUNT (Byte 5), DATA STROBE OFFSET COUNT (Byte 6) and WRITE
RETRY COUNT (Byte 8) Bytes 7 and 9 were Reserved
. . .
9
10 (MSB)
VERIFY RECOVERY TIME LIMIT
11 (LSB)