HP C2488A User Manual

Disk Drive Capacities
Table 1·1. HP C2486A/88A/90A SCSI Disk Drive Capacities
These nuniliers 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 0
Zone 1 .
Zone 2
Zone 3 Zone 4 Zone 5
Zone 6
(Outer)
Data Tracks per Surface: 478 171 136 150 140 178
144
Data Sectors per Track: 116 112 108
104
100 96
92
Data Bytes per Track: 59,392
57,344
55,296 53,248
51,200 49,152
47,104
(71,572) (69,104) (66,636) (64,168)
(61,700) (59,232)
(56,764)
Data Sectors per Cylinder:
C2486A 1,276 1,232 1,188 1,144 1,100
1,056 1,012
C2488A
1,624
1,568 1,512 1,456
1,400 1,344 1,288
C2490A
1,972 1,904 1,836 1,768 1,700 1,632 1,564
Data Bytes per Cylinder:
C2486A 653,312 630,784 608,256 585,728 563,200
540,672
518,144
(787,292)
(760,144) (732,996)
(705,848) (678,700) (651,552)
(624,404)
C2488A
831,488
802,816 774,144 745,472
716,800
688,128
659,456
(1,002,008) (967,456) (932,904) (898,352)
(863,800)
(829,248) (794,696)
C2490A 1,009,664
974,848 940,032 905,216 870,400 835,584
800,768
(1,216,724) (1,174,768) (1,132,812) (1,090,856) (1,048,900) (1,006,944)
(964,988)
C2486A C2488A C2490A'
Data Surfaces per Drive: 11
14 17
Data Bytes per Sector:
512 (617) 512 (617)
512 (617)
Data Sectors per Surface: 230,168 230,168 230,168
Data Bytes per Surface: 117,846,016 117,846,016 117,846,016
Data Cylinders per Drive:
1
2,467 2,467 2,467
Data Sectors per Drive: 2,531,848 3,222,352
3,912,856
Data Bytes per Drive: 1,296,306,176
1,649,844,224
2,003,382,272
(1,562,150,216)
(1,988,191,184) (2,414,232,152)
...
Notes:
1. There are 2531 total cylinders per drive, allocated as follows: 2467 data cylinders, 63 spare cylinders, and 2
cylinders reserved for logs and maintenance infonnation. Partial cylinders have been rounded to the next
whole number. Refer to Chapter 3, Table 3-1 for a complete cylinder allocation list.
(continued on next page)
1·4 Product SpecHications
DRAFT
1/18/93 09:58

HP C2488A Specifications

General

Brand	HP
Model	C2488A
Category	Storage
Language	English