Table 85 Identify Device Information --Continued - Hitachi HDS723020BLA642 Specifications

Word Content
88 0x7FH
89 xxxxH
90 0000H
91 0000H
92 FFFEH
93 0000H
94 0000H
95 xxxxH
96 xxxxH
97 xxxxH
98-99 xxxxH

Table 85 Identify device information --Continued--

Description
Ultra DMA Transfer modes
15- 8(=xx) Current active Ultra DMA transfer mode
15 Reserved (=0)
14 Mode 6
13 Mode 5
12 Mode 4
11 Mode 3
10 Mode 2
9 Mode 1
8 Mode 0
7- 0(=7F) Ultra DMA transfer mode supported
7 Reserved (=0)
6 Mode 6
5 Mode 5
4 Mode 4
3 Mode 3
2 Mode 2
1 Mode 1
0 Mode 0
Time required for security erase unit completion
Time= value(xxxxh)*2 [minutes]
Time required for Enhanced security erase completion
Current Advanced power management value
Current Password Revision Code
COMRESET result
Reserved
Stream Minimum Request Size
Number of sectors that provides optimum performance in streaming environment. This
number shall be a power of two, with a minimum of eight sectors (4096 bytes). The starting
LBA value for each streaming command should be evenly divisible by this request size.
Streaming Transfer Time - DMA
The worst-case sustainable transfer time per sector for the device is calculated as follows:
Streaming Transfer Time = (word 96) * (words(99:98) / 65536)
If the Streaming Feature set is not supported by the device, the content of word 96 shall be
zero.
Streaming Access Latency - DMA and PIO
The worst-case access latency of the devoce for a streaming command is calculated as
follows:
Access Latency = (word 97) * (words(99:98) / 256)
If the Streaming Feature set is not supported by the device, the content of word 97 shall be
zero.
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.
Hitachi hard disk drive specifications
1 = Active
1 = Active
1 = Active
1 = Active
1 = Active
1 = Active
1 = Active
1 = Support
1 = Support
1 = Support
1 = Support
1 = Support
1 = Support
1 = Support
133
0 = Not Active
0 = Not Active
0 = Not Active
0 = Not Active
0 = Not Active
0 = Not Active
0 = Not Active