Ultrastar 9ES
Jumper settings |
Models: DDRS-391390, 34560 |
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Option jumper block
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Option jumper block pin assignments
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*Address 0 is the shipping default ID for 80 pin model
**Address 6 is the shipping default ID for 50, 68 pin models |
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68 pin model auxiliary connector
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| Note: You may only use either the primary or the auxiliary connector, not both. |
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| Enable/disable auto spin up (JP5)
This jumper controls how the drive starts when power is applied.
- 50/68-pin model (Enable auto spin up): If the jumper is installed, the drive will spin up automatically after power-on reset. If the jumper is not installed the drive will
not spin up unless the host system issues a 'START UNIT' command to the drive.
- 80-pin model (Disable auto spin up): If the jumper is not installed, the drive will spin up automatically after power-on reset. If the jumper is installed the drive will not
spin up unless the host system issues a 'START UNIT' command to the drive.
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SCSI terminator on (JP6)
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- 50/68-pin models: When this jumpers is installed, the on-card SCSI bus terminator is enabled.
- 80-pin models: There is no terminator on the 80-pin model.
- LVD models If this jumper is installed, the drive is forced to work as a Single-End mode drive.
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Unit attention disable (JP7)
When this jumper is installed the drive will not generate a unit attention following a power on reset (POR) or SCSI bus reset. Any pending unit attention conditions will also be cleared
at POR or SCSI bus reset. |
Enable TI-SDTR/Enable TI-SDTR/WDTR (JP8)
When the jumper is installed the drive will initiate synchronous data transfer request negotiation (50,68 & 80 pin) and initiate wide data transfer request negotiation (68 & 80
pin) following a SCSI bus reset or power on event. |
Auto start delay and delay start (JP9,JP10)
The auto start delay and delay start pins control when and how the drive can spin up, with the combination of auto spin up option (JP5).
When in auto spin up and start delay mode the drive start will be delayed by a period of time multiplied by its own SCSI address. If auto spin up is disabled, these jumpers will be
ignored. |
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