Bridge HDisk Problems
05-Mar-88 16:47:51
Sb: #112065-Bridge HDisk Problems
Fm: Mark J. Morales 72307,2503
To: Don Curtis/SYSOP 76703,4321
This message turned up in search, but its forum couldn’t be identified from the original transcript, so it may not be linked into its thread.
I spent yesterday afternoon formatting my hard drive with various interleaves
Below is a table of the results, which you may find useful for comparison/
reference.
Test Time, Transfer Rate,
Interleave Seconds(1) Revs/Track(1) Bytes/Second(1) Disk Index(2)
—————————————————————————
1 70 18 29,002 0.5
2 69 18 29,002 0.5
3 72 18 29,002 0.5
4 72 18 29,002 0.5
5 15 4 130,560 1.4
6 22 5 104,448 1.0
7 23 5 104,448 1.2
8 29 6 87,040 1.1
9 30 6 87,040 1.0
10 30 7 74,596 1.0
Note: 1) These figures are from a test that averages >200 track reads.
2) Norton's Utilities Disk Index, relative to a PC/XT.
Boy, you sure were right about the performance factor and interleave, but
when you compare the ~77% decrease in performance when dropping from 5 to 4
against the ~20% decrease when raising it from 5 to 6, it's almost
unbelievable. Mark
PS. Guess I'll have to keep looking for those books, but all I 've seen are
the 'housekeeping' type.