The IBCDISDI Frogram: • Checks for tracks that were previously designated as defective
(flagged) and have had alternates assigned. Theprogram autoaatically
assigns alternate tracks for 2314/2319 disk devices. This testaust be suppressed when a disk is being initialized with surface analysis
for the firsttime. This test aust not be suppressed when a disk is
initialized without surface analysis.• Performs a surface analysis of each track of a 2314 or 2319 and
automatically assigns alternates (for 2314/2319s), if necessary.
Tracks that are available for use as alternates are checked first.• Writes a track descriptor record (record OJ, and erases the remainder of each track. When initializing a disk with surface analysis, IBCDASDI also writes a standard home address. • Writes IPL records on track 0 (records 1 and 2). • Writes volume label on track 0 (record 3) and provides space for
additional records, if requested.• Constructs and writes a volume table of contents (VTOC). • Writes IFL progra., if requested, on track 0 (2314, 2305, 2319, or
track 1 (2311).
TheIBCD1SDI Frogram: • Checks for tracks that were previously designated as defective
(flagged) and have had alternates assigned. Theprograa autoaatically assigns alternates (2314/2319 disk devices only). This
testmust not be suppressed. • lor 3350 devices, BI/BO on all tracks is rewritten (to facilitate
changingfroa · 3330 coapatibility mode to 3350 native aode and vice
versa). Tracks that are flagged defective are surface analyzed and
reclaimed if no errors are detected. TheBYPASS and lLIGTEST options
are ignored. TheP1SSES=0 option causes "QUICK DASDI" to be
perforaed.• Writes a standard hoae address, a track descriptor record (record 0), and erases the remainder of each track. • Writes IFt records on track 0 (records 1 and 2). • Writes volume label on track 0 (record 3) and provides space for
additional records, if requested.• Constructs and writes a volume table of contents (VTOC). • writes IPL prograa, if requested, on track 0 (2314, 2305, 3330, 3340, or 3350 devices) or track 1 (2311 disks).
182Vft/310 OFerator's Guide
(flagged) and have had alternates assigned. The
assigns alternate tracks for 2314/2319 disk devices. This test
for the first
initialized without surface analysis.
automatically assigns alternates (for 2314/2319s), if necessary.
Tracks that are available for use as alternates are checked first.
additional records, if requested.
track 1 (2311).
The
(flagged) and have had alternates assigned. The
test
changing
versa). Tracks that are flagged defective are surface analyzed and
reclaimed if no errors are detected. The
are ignored. The
perforaed.
additional records, if requested.
182