Difference between revisions of "ACP SWAPFLGS"
(Created page with "'''ACP_SWAPFLGS''' is a system parameter that enables or disables swap through the value of a 4-bit number for certain classes of ACPs, namely disks mounted /SYSTEM, disks mou...") |
m (→Classes of ACPs: Add cat) |
||
| Line 17: | Line 17: | ||
If the value of the bit is 1, the corresponding class of ACPs can be swapped. The value of decimal 15 (hexadecimal F---all bits on) enables swap for all classes of ACP. A value of decimal 14 disables swap for ACPs for volumes mounted with the /SYSTEM qualifier but leaves swap enabled for all other ACPs. Note that one has only disk ACPs present if they are specifically requested at mount time or if a Files-11 On-Disk Structure Level 1 disk is mounted. In general, only bit 3 is significant because usually no file ACPs exist. | If the value of the bit is 1, the corresponding class of ACPs can be swapped. The value of decimal 15 (hexadecimal F---all bits on) enables swap for all classes of ACP. A value of decimal 14 disables swap for ACPs for volumes mounted with the /SYSTEM qualifier but leaves swap enabled for all other ACPs. Note that one has only disk ACPs present if they are specifically requested at mount time or if a Files-11 On-Disk Structure Level 1 disk is mounted. In general, only bit 3 is significant because usually no file ACPs exist. | ||
| + | |||
| + | [[Category:System Parameters]] | ||
Latest revision as of 11:20, 23 March 2022
ACP_SWAPFLGS is a system parameter that enables or disables swap through the value of a 4-bit number for certain classes of ACPs, namely disks mounted /SYSTEM, disks mounted /GROUP, private disks, and magnetic tapes ACPs.
Classes of ACPs
| Bit | Class of ACP |
|---|---|
| 0 | Disks mounted by MOUNT/SYSTEM |
| 1 | Disks mounted by MOUNT/GROUP |
| 2 | Private disks |
| 3 | Magnetic tape ACP |
If the value of the bit is 1, the corresponding class of ACPs can be swapped. The value of decimal 15 (hexadecimal F---all bits on) enables swap for all classes of ACP. A value of decimal 14 disables swap for ACPs for volumes mounted with the /SYSTEM qualifier but leaves swap enabled for all other ACPs. Note that one has only disk ACPs present if they are specifically requested at mount time or if a Files-11 On-Disk Structure Level 1 disk is mounted. In general, only bit 3 is significant because usually no file ACPs exist.
