#SCSI confusion…
19-Jun-93 23:35:28
Sb: #104107-#SCSI confusion…
Fm: Don Curtis/SYSOP 76703,4321
To: Paul Higginbottom 74140,250
Paul,
Sorry….there is no consumer drive on the market that can sustain
rates of 5MB/sec.
Do the math. 3600rpm = 60 revs per second. Even at 35 sectors per
track, you can only read 35 x 60 sectors per second and at 512 bytes per
sector…that equals 35 x 60 x 512 or 1,075,200 bytes per second. You'd
have to have 5 times the number of sectors per track, 5 times the
rotational speed or be able to read 5 tracks at one time in order to get 5
Meg/second off of the media.
Burst mode, with buffered reads and/or buffered read-ahead and you can
do it…but sustained…not physically possible out of consumer drives.
Stripped disk arrays…yes, single drive…no.
Don