Format of IBMCACHE.SYS status record:
Offset Size Description )
00h DWORD total number of read requests
04h DWORD total number of hits
08h DWORD number of physical disk reads
0Ch DWORD total number of sectors requested by physical disk reads
10h 6 BYTEs ???
16h DWORD pointer to start of error list (see #00264)
1Ah DWORD pointer to end of error list
1Eh WORD ???
20h BYTE using extended memory if nonzero
21h BYTE ???
22h 4 BYTEs ASCII version number
26h WORD cache size in KB
28h WORD sectors per page