Content deleted Content added
Peter Flass (talk | contribs) →Minidisks {{anchor|minidisk}}: explain disk addressing, mostly footnote. |
Peter Flass (talk | contribs) →Minidisks {{anchor|minidisk}}: see also |
||
Line 11:
The first two blocks on a minidisk are reserved for [[Booting#IPL|IPL]]. The third block contains the [[Volume (computing)#Volume label|label]] identifying the minidisk. The fourth block, called the ''Master File Directory'' or MFD, is the [[Directory (computing)|directory]] header for the minidisk. The MFD also contains a [[bitmap]] called ''QMSK'' indicating the status of each 800-byte block on disk, used for allocation. Following the MFD all record types may be scattered and intermixed on a disk.
==See also==
* [[IBM System/360 architecture]]
==File system structure==
| |||