Chapter 6. Command Timeouts
Next table will list the library media changer commands with the recommended maximum time-out values.
Note: If the library is working in a multi host environment, the time-out values should be adjusted for the
worst case time-out value from a pending motion command from another host.
Op Code SCSI Command Command Timeout Notes
07h INITIALIZE ELEMENT STATUS 11 minutes 1
37h INITIALIZE ELEMENT STATUS WITH RANGE with FAST bit
set ( ignore bar code labels )
11 minutes 2
INITIALIZE ELEMENT STATUS WITH RANGE with FAST bit
cleared ( scan bar code labels )
11 minutes 2
12h INQUIRY 10 seconds
4Ch LOG SELECT 30 seconds
4Dh LOG SENSE 30 seconds
15h MODE SELECT 6 30 seconds
55h MODE SELECT 10 30 seconds
1Ah MODE SENSE 6 30 seconds
5Ah MODE SENSE 10 30 seconds
A5h MOVE MEDIUM (slot to slot) 12 minutes
MOVE MEDIUM (slot to drive) 25 minutes
MOVE MEDIUM (implicit drive to slot) ( the media changer
initiates the unload of the cartridge from the drive. The MODE
MEDIUM command timeout has been adjusted to account for
maximum unload time)
25 minutes 3
MOVE MEDIUM (explicit drive to slot) ( the host has issued an
UNLOAD command to the tape drive prior to issuing the
MOVE MEDIUM command)
13 minutes
1Bh OPEN/CLOSE IMPORT/EXPORT ELEMENT 10 minutes
5Eh PERSISTENT RESERVE IN 30 seconds
5Fh PESISTENT RESERVE OUT 30 seconds
2Bh POSITION TO ELEMENT TBD
1Eh PREVENT/ALLOW MEDIUM REMOVAL 30 seconds
3Ch READ BUFFER 30 seconds 4
B8h READ ELEMENT STATUS 30 seconds
17h RELEASE 6 30 seconds
57h RELEASE 10 30 seconds
02h REQUEST SENSE 10 seconds
16h RESERVE 6 30 seconds
56h RESERVE 10 30 seconds
A3h REPORT TIMESTAMP 30 seconds
A3h REPORT SUPPORTED OPERATION CODES 30 seconds
B5h REQUEST VOLUME ELEMENT ADDRESS 30 seconds
1Dh SEND DIAGNOSTICS 30 seconds
6-1
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