Seagate ST373207LC Cheetah 10K.7 SCSI Product Manual - Page 96

Drive activity LED

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9.11 Drive activity LED The following table provides drive activity LED status. Table 22: Drive activity LED status Spindle status Spinning up with DC power applied Spun down Powered down by removal of DC power Spun up Spun down Spun down Spun down Spun down Spun up Spun up Spun up Spun up Spun up Spun up Command status N/A Start Unit N/A LED status On until spinup is complete On while processing the command Off due to absence of power Stop Unit No command activity Write/Read Buffer SCSI Bus Reset Test Unit Ready No command activity Write/Read SCSI Bus Reset Test Unit Ready Format with Immediate option on Format without Immediate On while processing the command Off On while processing the command On while processing the reset On while processing the command Off On while processing the command On while processing the reset On while processing the command On while the command is initially processed LED toggles on/off on each cylinder boundary 86 Cheetah 10K.7 SCSI Product Manual, Rev. D

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86
Cheetah 10K.7 SCSI Product Manual, Rev. D
9.11
Drive activity LED
The following table provides drive activity LED status.
Table 22:
Drive activity LED status
Spindle status
Command status
LED status
Spinning up with DC power applied
N/A
On until spinup is complete
Spun down
Start Unit
On while processing the command
Powered down by removal of DC
power
N/A
Off due to absence of power
Spun up
Stop Unit
On while processing the command
Spun down
No command activity
Off
Spun down
Write/Read Buffer
On while processing the command
Spun down
SCSI Bus Reset
On while processing the reset
Spun down
Test Unit Ready
On while processing the command
Spun up
No command activity
Off
Spun up
Write/Read
On while processing the command
Spun up
SCSI Bus Reset
On while processing the reset
Spun up
Test Unit Ready
On while processing the command
Spun up
Format with Immediate option on
On while the command is initially processed
Spun up
Format without Immediate
LED toggles on/off on each cylinder
boundary