User Manual

SCSI Commands Reference Manual, Rev. J 314
www.seagate.com Parameters for direct access devices
Table 280 defines the BACKGROUND SCAN STATUS field.
NUMBER OF SCANS PERFORMED field
The NUMBER OF SCANS PERFORMED field indicates the number of background scans (i.e., the total number of background pre-scan operations
plus the number of background medium scan operations) that have been performed since the SCSI target device was shipped by the manufac-
turer.
BACKGROUND MEDIUM SCAN PROGRESS field
The BACKGROUND MEDIUM SCAN PROGRESS field indicates the percent complete of a background scan operation in progress. The returned
value is a numerator that has 65 536 (i.e., 1_0000h) as its denominator. If there is no background scan operation in progress (i.e., no background
scan operation has been initiated since power on or the most recent background scan operation has completed), then the device server shall
set the BACKGROUND MEDIUM SCAN PROGRESS field to 0000h.
NUMBER OF BACKGROUND MEDIUM SCAN PERFORMED field
The NUMBER OF BACKGROUND MEDIUM SCAN PERFORMED field indicates the number of background medium scan operations that have
been performed since the SCSI target device was shipped by the manufacturer. If the NUMBER OF BACKGROUND MEDIUM SCAN PERFORMED
field contains 0000h, then the number of background medium scan operations is not reported.
Table 280 Background Scan Status field
Code Description
00h No background scans active
01h Background medium scan is active
02h Background pre-scan is active
03h Background medium scan halted due to fatal error
04h Background medium scan halted due to a vendor-specific pattern of errors
05h Background medium scan halted due to medium formatted without P-list
06h Background medium scan halted - vendor-specific cause
07h Background medium scan halted due to temperature out of allowed range
08h Background medium scan halted, waiting for Background Medium Interval timer expiration.
09h - FFh Reserved