VDISK.SYS

The VDisk Device Driver (VDISK.SYS) provides a virtual disk in RAM.

DEVICE=x:\OS2\BOOT\VDISK.SYS [bbbb] [ssss] [dddd]

Parameters

bbbb

Disk size in KB. Default value is 64 (16 ... 4096).

ssss

Sector size in bytes. Default value is 512 (128, 256, 512, 1024).

dddd

Number of root directory entries. Default is 64 (2 ... 1024). The value is rounded up to the nearest sector size boundary.

NOTE

In the event that there is not enough memory to create the VDisk volume, VDisk will try to make a DOS volume with 16 directory entries. This may result in a volume with a different number of directory entries than the parameter specifies.

CAUTION

Because a RAM disk takes available memory away from OS/2, you may negatively impact system performance on systems with less than 12 MB of RAM. Unless you have lots of RAM or have a very specific need, don't install a RAM disk.

NOTE

If you do install VDISK.SYS and you also have EXTDSKDD.SYS installed, VDISK.SYS must be placed after EXTDSKDD.SYS in your config.sys file. Check your on-line Command Reference for information on EXTDSKDD.SYS.

TIP

Better use the RAM(64).IFS by Karl Olson.