1 MOUnt
 
 The MOUNT command logically connects devices to Ancillary Control
 Processors (ACPs).  There are two forms of the MOUNT command,
 depending on the device being mounted.  Note that, if the MOUNT command
 line is too long to fit on one MCR command line, it may be extended by
 typing a hyphen at the end of all but the last line (up to a maximum of
 255(10) characters.

 Files-11 Disk or  DECtape Format:

	MOU[NT] ddnn:[volume-label][/keyword][/keyword]...

 Files-11 (ANSI) Magnetic Tape Format:

	MOU[NT] device:[file-set-ID] [/keyword][/keyword]...

 For information on the options of the various formats, type:

	AID MOUNT FILES11		! For help on Files-11 Format
	AID MOUNT MAGTAPE		! For help on Magtape Format
	AID MOUNT KEYWORDS		! For list of keywords for all
					! formats.
2 FILES11
 
 The general format of the command to mount a Files-11 device is:

	MOU[NT] ddnn:[volume-label][/keyword][/keyword]...

 where	ddnn: is the device-unit on which the volume is to be mounted
		(must be specified)

	volume-label is the label on the volume (Set by INI.)

 Keywords available:

	/ACP=option			SpecifY ACP to use
	/CHA=[parameter(s)]		Specify Characteristics
	/DENS=density			Specify Tape density
	/EXT=block-count		Specify default extend size
	/FPRO=[system,owner,group,world] Specify default File Protection
	/LRU=FCB-count			Specify Pre-accessed directories
	/OVR				Overide volumn lable
	/UNL				Unlock the INDEX FILE
	/WIN				Set  number of retrieval pointers

 Type AID MOUNT KEYWORDS for help on the above keywords.  Type AID
 MOUNT EXAMPLES for examples of usage.
2 MAGTAPE
 
 The general form of the command to mount a Files-11 (ANSI) Magnetic
 Tape is:

	MOU[NT] device:[file-set-ID] [/keyword(s)]

 where device is the device name on which the volume set is to be mounted.

 Keywords available:

	/ACP=option			SpecifY ACP to use
	/CHA=[parameter(s)]		Specify Characteristics
	/DENS=density			Specify Tape density
	/EXT=block-count		Specify default extend size
	/FPRO=[system,owner,group,world] Specify default File Protection
	/LRU=FCB-count			Specify Pre-accessed directories
	/OVR				Overide volumn lable
	/UNL				Unlock the INDEX FILE
	/WIN				Set  number of retrieval pointers

 Type AID MOUNT KEYWORDS for help on the above keywords.  Type AID
 MOUNT EXAMPLES for examples of usage.
2 KEYWORDS
 
 In the following list of keywords, each keyword is preceded by a code 
 that indicates the device type for which the keyword is legal. "F"
 indicates Files-11, and "T" indicates magtape. 

 (FT)	/ACP=option		Specifies the ACP to be used.
 (FT)	/CHA=[parameter(s)]	Specify Characteristics
 (FT)	/DENS=tape-density	Specifies tape density: 800, 1600, or 6250 bpi.
 (F)	/EXT=block-count	Specifies file extension increment.
 (FT)	/FPRO=[s,g,o,w]		Specifies default file protection codes.
 (F)	/LRU=directory-count	Specifies number of directories to be accessed.
 (FT)	/OVR			Overrides label processing.
 (T)	/OVREXP			Overrides expiration date.
 (T)	/OVRFSID		Ignores existing File Set Identifiers.
 (F)	/UNL			Unlocks volume index file.
 (F)	/WIN=option     	Specify number of mapping pointers.
				to be allocated for file windows.

 For more detailed help on a specific keyword, type

	AID MOUNT KEYWORDS keyword-name
3 ACP
 The format of the /ACP keyword is:

 (FT)	/ACP=option

 where option is the name of the Ancillary Control Processor to use
 with the volume.  The default depends upon the device type:

	Files-11 except DECtape:	F11ACP
	DECtape:			DTAACP
	Magtape:			MTAACP
3 CHA
 The format of the /CHA keyword is:

 (FT)	/CHA=[option(,option,option)]

 where options can be:
			FOR	A Foreign volumn
			ATCH	Device may be attached
			DCF	Device control functions permitted
3 DENS
 The format of the /DENS keyword is:

 (FT)	/DENS=density

 where density is 800, 1600, or 6250 bpi.
3 EXT
 The format of the /EXT keyword is:

 (F)	/EXT=block-count

 where block-count specifies the number of blocks by which a file can be 
 extended when it exhausts its space allocation. The default is the value
 specified when the volume was initialized.
3 FPRO
 The format of the /FPRO keyword is:

 (FT)	/FPRO=(SYSTEM:RWED,OWNER:RWED,GROUP:RWED,WORLD:RWED)
	
	or

	/FPRO=[RWED,RWED,RWED,RWED]

 Each subfield in the keyword may be one to four of the following letters:
 R(ead), W(rite), E(xtend), D(elete). In each instance, the absence of the 
 code means that the applicable user is denied the access right. The default 
 values are taken from the volume's home block.
3 LRU
 The format of the /LRU keyword is:

 (F)	/LRU=directory-count

 where directory-count specifies the approximate number of directories that 
 will be accessed simultaneously while the volume is mounted. 
3 OVR
 The format of the (privileged) /OVR keyword is:

 (FT)	/OVR

 For disks and DECtapes, this keyword overrides label processing so that a 
 volume can be mounted without specifying a volume label.

 For magnetic tapes, this keyword overrides File-Set-ID processing on the
 first tape of a tape set so that a volume can be mounted without specifying
 a File Set ID.
3 OVREXP
 The format for the /OVREXP keyword is:

 (T)	/OVREXP

 /ONVREXP specifies that the expiration date on the tape volume(s) is 
 overridden.
3 OVRFSID
 The format for the /OVRFSID keyword is:

 (T)	/OVRFSID

 /OVRFSID specifies that existing File Set Identifiers on the second 
 and subsequent magnetic tape volumes of a multivolume set are ignored.
3 PRO
 The format for the /PRO keyword is:

 (FT)	/PRO=(SYSTEM:RWCD,OWNER:RWCD,GROUP:RWCD,WORLD:RWCD)

	or

	/PRO=[RWCD,RWCD,RWCD,RWCD]


 where the protection specification (R,W,C,D) specifies the default volume 
 protection. In each instance, the absence of the code means that the 
 applicable user is denied the access right. The defaults are the values 
 specified when the volume was initialized.
3 UIC
 The format for the /UIC keyword is:

 (FT) 	/UIC=[ggg,uuu]

 This option specifies the volumn UIC to be used for the duration that the
 volume is mounted.
3 UNL
 The format for the /UNL keyword is:

 (FT) 	/UNL

 This option specifies that the volume's index file is to be left unlocked,
 thus giving task write access to the index file.
3 WIN
 The format of the /WIN keyword is:

 (F)	/WIN=n

 where n is the number of retrieval pointers to be kept in each window
 block for each open file on this volumn. Increasing this number speeds ac-
cess, particularly to randomly accessed files, at the expense of system dy-
namic memory.
 2 EXAMPLES
 
 To mount a pack that has a null label on an RK07 drive, selecting no
 special options:

	MOU DM1:

 To mount a magtape volume set at 1600 bpi overriding expiration dates 

	MOU MM0:PAYROLLVOL1/DENS=1600/OVREXP

 To mount an RP06 for use as the main system device (because of heavy
 use, we will keep high window and LRU counts):

	MOU DB0:/OVR/LRU=10/WIN=20

