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Hitachi HDS725050KLA360 - Page 147

Hitachi HDS725050KLA360
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Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification
133
98-99 xxxxH Streaming Performance Granularity
These words define the fixed unit of time that is used in Identify
Device words (97:96) and (104),and Set Features subcommand 43h, and
in the Streaming Performance Parameters log, which is accessed by
use of the Read Log Ext command, and in the Command Completion Time
Limit that is passed in streaming commands. The unit of time for
this parameter shall be in microseconds, e.g. ad value of 10000
indicates 10 ms.
100-
103
xxxxH Minimum user LBA address for 48-bit Address feature set
104 xxxxH Streaming Transfer Time - PIO
The worst-case sustainable transfer time per sector for the device
is calculated as follows:
Streaming Transfer Time = (word 104) * (words(99:98) / 65536)
If the Streaming Feature set is not supported by the device, the
content of word 104 shall be zero.
105-
106
0000H Reserved
107 58C5H Inter-seek delay for ISO-779 acoustic testing in microseconds
108-
111
xxxxH World wide name - the optional value of the world wide name for the
device
112-
126
0000H Reserved
127 0000H Removable Media Status Notification feature set - 0000H=Not
supported
128 xxxxH
Security status. Bit assignments
15-9 Reserved
8 Security Level 1= Maximum, 0= High
7-6 Reserved
5 Enhanced erase 1= Support
4 Expired 1= Expired
3 Freeze 1= Frozen
2 Lock 1= Locked
1 Enabled/Disable 1= Enable
0 Capability 1= Support

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