Q280 Quantum
1 messages in this thread
Funny you should ask that today! I've been looking for those docs fo
awhile, and just today found them. OK, Acording to what I see here, the
drive has transparent defect mapping, which means there should be sectors
reserved for mapping already. The Quantum drive are a bit different from
most drives in that they use a recording method called Zoned Recording.
What this basicly means is that there are more sectors per track on the
outer tracks than on the inner. The data I have shows both the Q240S and
the Q280S drives.
Drive Q240S Q280S
Number of heads 3 6
Number of zones 2 2
Outer Zone
Cylinders 590 590
Sectors/track 35 35
Inner Zone
Cylinders 244 244
Sectors/track 28 28
Number of sectors 82,029 164,058
Hmmm, looking at the number above, it seems that the number of
sectors is less than what the calculations using the sectors/track,
cylinders, and number of heads would suggest. Doing a few quick
calculations would indicate that for your drive, you should use 6 heads, 37
sectors/track, and 739 cylinders. That would give you a total of 83.9M of
space. I have other data here, so if you have any other specific
questions, I'll try to find the answers. -Dean