Table 1-1.
HP
C2486A/88A/90A
SCSI
Disk Drive Capacities (continued)
These
numbers
are
for
comparison
only.
Capacities
are
calculated
using
a
512-byte
sector.
When
other
sector
sizes
are
used,
formatted
capacities
will change.
Unformatted
capacities
are
given in
parenthesis
(
).
Zone
7
Zone
8
Zone
9
Zone
10
Zone
11
Zone
12
Zone
13
(hIDer)
Data
Tracks
per
Surface:
152
148
146
136
164
144
180
Data
Sectors
per
Track:
88
84
80 76
72
68
64
Data
Bytes
per
Track:
49,056 43,008
40,960
38,912 36,864
34,816
32,768
(54,296) (51,828)
(49,360) (46,892) (44,424) (41,956)
(39,488)
Data
Sectors
per
Cylinder:
C2486A 968 924
880 836
792
748
704
C2488A
1,232
1,176
1,120 1,064 1,088 952
896
C2490A 1,496 1,428 1,360 1,292 1,224
1,156
1,088
Data
Bytes
per
Cylinder:
C2486A 495,616 473,088 450,560 428,032 405,504
382,976 360,448
(597,256) (570,108)
(542,960)
(515,812) (488,664) (461,516)
(434,368)
C2488A 630,784 602,112 573,440
544,768 516,096 487,424 458,752
(760,144) (725,592) (691,040) (656,488)
(621,936) (587,384) (552,832)
C2490A
765,952
731,136
696,320 661,504
626,688 591,872
557,056
(923,032) (881,076) (839,120)
(797,164) (755,208)
(713,252) (671,296)
Notes:
1.
There
are
2531
total
cylinders
per
drive,
allocated
as
follows: 2467
dMa
cylinders,
62
spare
cylinders,
and
2
cylinders
reserved
for
logs
and
maintenance
information.
Partial
cylinders
have
been
rounded
to
the
next
whole
number.
Refer
to
Chapter
3,
Table
3-1 for a
complete
cylinder
allocation
list.
DRAFT
Product Specifications 1-5
1/18/93 09:58
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