a. Control mode parameters |
|
| ||
|
| Parameter |
| Default value |
|
|
|
| |
| • QUEUE ALGORITHM MODIFIER |
| 0 (Execution | |
|
|
|
| sequence of |
|
|
|
| read/write |
|
|
|
| commands is |
|
|
|
| optimized.) |
| • QErr: | Resume or abort remaining suspended |
| 0 (command is |
|
| commands after sense pending state |
| resumed) |
5.7Dismounting HDDs
Since the method and procedure for dismounting the HDD, etc. depends on the locker structure of the system, etc., the work procedures must be determined in consideration of the requirements specific to the system. This section describes the general procedures and notes on dismounting the drive.
It is recommended before dismounting the HDD to make sure the spindle motor completely stops after power was turned off.
CAUTION
High temperature
To prevent injury, never touch the HDD while it is hot. The DE and LSI become hot during operation and remain hot immediately after turning off the power.
a)Remove the power cable.
b)Remove the SCSI cable.
NC Model uses a single cable for power supply and the SCSI interface.
c)When the external operator panel is mounted, remove the cable. If it is difficult to access the connector position, the cable may be removed after step e).
d)Remove the DC ground cable.
e)Remove the four mounting screws securing the HDD, then remove the HDD from the system cabinet.
f)When storing or transporting the HDD, put it the antistatic case (Fcell) (see Section 5.1 and 6.5).
| 93 |
