formatted and labeled
system information (page allocation map, label, and so on).
These CP-formatted volumes can be made usable by
ways:
2. Their volume serial numbers may appear in the
appear in the
disk formatting, and for assigning an alternate track. The execution of
descr ibed in "Invoking
"initialization with surface analysis" or "non-quick
invoked by a DADEF statement when its
defaulted as a value greater than
alternate tracks will be assigned to tracks that prove defective.
Pre-existing flags and alternate assignments are ignored. Record zero
is rewritten on all tracks. For some device types, home addresses are
also rewritten on all tracks. Disk initialization can be performed on
minidisks as well as real disks. Initialization will generally be
required when a disk (or a 2314 or 2319 minidisk) is in an initial or
unknown state. Note: whenever disk initialization is done, disk
formatting is also done.
invoked by a DADEF statement with
Formatting consists of writing
labels on track
contents
record of how many alternate tracks remain available for assignment,
this information must be computed before the Format 4 label can be
written. To compute this,
cylinders. Disk formatting can be performed on any device, real or
minidisk. Disk formatting will generally be required when standaru
labels must be created.
an
track that is specified. (Note that disk initialization may also assign
alternate tracks.)
performed on