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Microsoft Programmer's Library 1.3
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os212fsd
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readme.doc
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1991-02-28
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Software requirements:
OS2 1.2 after internal release 12.134 for minimal functionality.
OS2 1.21 after internal release 121.185 for CDROM required kernel
fixes. This will give the most bug-free operation.
Config.sys Parameters : May be any of the following.
/k Instructs the FSD to first search for a secondary volume
/K descriptor. If not found, the volume descriptors are
then searched for a primary volume descriptor. This is
used to read Kanji disks.
/c:<#> Tells the FSD how many 64K segments to use for the sector
/C:<#> cache. The default is 2, meaning 64 sectors are cached.
This value must be between 1 and 65535. The actual number
of cached sectors is this value times 32.
/m:<#> Tells the FSD the maximum number of disk sectors to read at
/M:<#> a time. The default is 8 (16K). The maximum is 31 sectors
or 25% of the total sector cache, whichever is smaller.
/quiet Suppresses any signon messages.
The /c parameter must appear before the /m parameter or the /m
parameter will be ignored and the default value used.
Example : The following instructs the FSD to search for a secondary
volume descriptor, cache 128 sectors and read a maximum
of 20 sectors at a time. In this case the FSD is
put in a directory named c:\ifs.
ifs=c:\ifs\cdfs.ifs /k /c:4 /m:20
The following can be used to read the primary volume
descriptor use the default cache and read-ahead values.
ifs=c:\ifs\cdfs.ifs
The CDROM FSD swaps out the sector buffers into the swapfile on the
harddisk. The value for the /C parameter is constrained by the swapfile
not the physical memory of the machine.
Put the dll, UCDFS.DLL in a directory on your libpath.
This dll provides compatibility for the utility functions SYS,
FORMAT, CHKDSK, and RECOVER. These are basically no-ops for CDROM
except CHKDSK which returns the size of the CDROM volume.