Channel Commands; Control Commands; Search Commands; Read Commands - IBM 3350-A2 Reference Manual

The following commands are recognized and executed
by the 3350. (See Figures 11 through 16.)
The three diagnostic commands are on(v used when
microdiagnostics from the System/ 3 70 are required.
CONTROL COMMANDS
• No Operation
• Recalibrate
• Seek
• Seek Cylinder
• Seek Head
• Space Count
• Set File Mask
• Set Sector
• Restore
• Diagnostic Load
• Diagnostic Write
SEARCH COMMANDS
• Search Home Address Equal
• Search ID Equal
• Search ID High
• Search ID Equal or High
• Search Key Equal
• Search Key High
• Search Key Equal or High
Channel Commands
READ COMMANDS
• Read Data
• Read Key and Data
• Read Count, Key, and Data
• Read Record Zero
• Read Count
• Read Home Address
• Read Initial Program Load
• Read Sector
• Read Multiple Count, Key, and Data
SENSE COMMANDS
• Sense
1/0
Type
• Sense
1/0
• Read and Reset Buffered Log
• Diagnostic Sense
• Device Reserve
I •
Unconditional Reserve
• Device Release
FORMAT WRITE COMMANDS
• Write Home Address
e Write Record Zero
• Erase
• Write Count, Key, and Data
• Write Special Count, Key, and Data
UPDATE WRITE COMMANDS
• Write Data
• Write Key and Data
Channel Commands 25