4.3 Drive organization
4.3.1 Drive format
Upon shipment from Hitachi Globals Storage Technologies manufacturing the drive satisfies the sector
continuity in the physical format by means of the defect flagging strategy described in Section 5.0 on
page 19 in order to provide the maximum performance to users.
4.3.2 Cylinder allocation
63047026-4862253668725-7055226
63045381-4702556066190-6872425
65143741-4538058863891-6618924
67242684-4374063061138-6389023
67241607-4268365159298-6113722
70040045-4160667257062-5929721
70038444-4004470054002-5706120
73537015-3844373550934-5400119
73535555-3701475650077-5093318
75633867-35554770 47269-5007617
75632136-3386678746331-4726816
78730885-3213579843214-4633015
79829281-3088484040978-4321314
79827588-29280840 38628-4097713
84025372-2758786134810-3862712
84023092-25371892 32324-3480911
86121117-2309191029207-3232310
86119094-2111692427237-292069
89216914-1909394523815-272368
91014454-1691396621898-238147
92412158-1445398018513-218976
94510151-1215799716481-185125
9458099-101501,00812709-164804
9666102-80981,0509225-127083
9803263-61011,050 5633-92242
9971011-32621,071 1152-56321
1,0080 - 1010
1,092 0-11510
Blk/TrkPhysical CylindersBlk/TrkPhysical Cylinders
Optimized 40GB modelAll models except optimized 40GB
Data
Zone
Figure 3. Cylinder allocation
Physical cylinder is calculated from the starting data track of 0. It is not relevant to logical CHS. Depend-
ing on the capacity some of the inner zone cylinders are not allocated.
Data cylinder
This cylinder contains the user data which can be sent and retrieved via read/write commands and a
spare area for reassigned data.
Spare cylinder
The spare cylinder is used by Hitachi Globobal Storage Technologies manufacturing and includes data
sent from a defect location.
Deskstar 180GXP hard disk drive specifications
11
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