Maxtor ATLAS 10K III User Manual
Page 135
SCSI Description
Maxtor Atlas 10K III
5-71
Disable
Auto Move
Heads
0
When set to a 0, Move heads is on meaning that if there is no I/O activity
for 30 seconds the heads will move on there own. When set to a 1 Move
heads will be turned off.
ESL
0
Enable Save Log. When set = 1, saving and loading of non-SMART pages
to/from the MCS area is enabled.
IMR
0
Infinite Message Retry. When set = 1, the number of retries at a message
error is infinite.
IOE
1
Individual ORCA Profile Enabled. When set = 0, this feature is disabled.
ArcsOn
0
Arcs always on.
DlyESP
0
Delay ESP. For ESP (anticipatory-READ) commands only, when set = 1 the
delay from data phase to the first REQ of data is increased from about 2
µ
s
to about 16
µ
s.
Force10
0
When this bit = 0, the disk drive may negotiate for a transfer period less
than 19h.
When this bit = 1, SDTR transfer period is limited to 19h minimum.
DEWG
1
Disable ESP WRITE Guess. When = 1, enables this feature.
Enable
Comm
Timeout
0
Enable Command Timeout. When = 1, enables this feature.
MaxSkip
5
The value of this field specifies the number of times that a host request can
be skipped over (such as when performing queuing optimizations). This pa-
rameter affects only queued commands. Some host operating systems sup-
port tagged command queuing which allows for multiple requests to be
resident in the disk drive simultaneously. The disk drive can then re-order
execution of the requests to improve throughput. For systems in which min-
imum completion time of a request is more important than throughput, Max-
Skip can be reduced. Values allowed range from 0 to 255.
Vendor Spe-
cific
---
Proprietary Information
Minimum
Block
Threshold
1
This field specifies the minimum number of blocks ready before starting data
transfer.
Maximum
Slots to be
Reserved
0
This field is used to reserve x amount of slots from the total resources with-
in the disk drive for incoming commands. Once the remaining slots are full,
up to the queue depth of the disk drive, subsequent commands will be ac-
cepted but placed on a disk drive internal pending list. As the disk drive
completes the active commands, freeing up internal resources (SMBs), the
pending commands are activated.
SSSO
0
Spindle Sync Sector Offset. This field is used to specify the RPL offset to
sector boundary.
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EAMNR
0
Enable Auto Master Negotiation if RPL Mode = 0.
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Spindle
Sync Check
Interval
0
The value of this field specifies the time, in minutes, of the interval between
spindle synchronization status checks. If this value is 0, the spindle is
checked at five-minute intervals. If the value is set to 60 or greater, the spin-
dle is checked at 60-minute intervals.
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Command
Timeout
Limit
60
The value of this field specifies the timeout limit in 100 millisecond units.
The default value of 60 specifies a command timeout limit of 6 seconds
Command
Timeout
Limit
Response
Time
10
The value of this field specifies how long, in 100 millisecond units, before
the Command Timeout Limit abort processing should commence. This is in-
tended to compensate for abort processing time.
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