Special file names begin with ‘
hk' and ‘
rhk' for the block and character files respectively. The second component of the name, a drive unit number in the range of zero to seven, is represented by a ‘
?' in the disk layouts below. The last component is the file system partition which is designated by a letter from ‘
a' to ‘
h'. and corresponds to a minor device number set: zero to seven, eight to 15, 16 to 23 and so forth for drive zero, drive two and drive three respectively. The location and size (in sectors) of the partitions for the RK06 and RK07 drives are as follows:
On a dual RK-07 system partition hk?a is used for the root for one drive and partition hk?g for the /usr file system. If large jobs are to be run using hk?b on both drives as swap area provides a 10Mbyte paging area. Otherwise partition hk?c on the other drive is used as a single large file system.