by multiplying 12 seconds by its SCSI ID. For example, the disk drive
motor of a disk drive having a SCSI ID equal to two will start 24 (2 x 12)
seconds after power is applied to the 2104.
When this switch is set to Off, and the Delay Motor Start Switch
5
is set
to Off, the disk drives are set to Normal Start mode. The disk drive motors
will start when power is applied to the 2104.
The effect of both this switch and the Delay Motor Start Switch
5
being
set to On is undefined.
The default logical setting for this switch is On.
Enable Enclosure Services switch
3
When this switch is set to On, the enclosure services can operate.
When the switch is to Off, no response occurs to any request to use the
enclosure services.
The default logical setting for this switch is On.
Select Enclosure Services switch
4
This switch selects which enclosure services can be used — SAF-TE or SES.
When set to Off, it selects SAF-TE.
When set to On, it selects SES.
The default logical setting for this switch is On.
Note:
SAF-TE services are not used with RS/6000 or IBM
Eserver
pSeries
computers.
Delay Motor Start switch
5
Refer to the explanation of the Drive Autostart Switch
2
.
The default logical setting for this switch is Off.
Box ID switch
6
This 10-position rotary switch indicates the ID of the 2104. The operator
selects the required setting which can be used by the SES Inquiry
command and the SAF-TE buffer 1 command.
The default logical setting for this switch is 0.
Note:
SAF-TE services are not used with RS/6000 or IBM
Eserver
pSeries
computers.
The switch card has other switches that are accessible only when the switch card is
removed from the 2104. They should only be changed when the 2104 is being
converted from a Model DU3 to a Model TU3, or from a Model TU3 to a Model
DU3.
SCSI Address switch
7
When this switch is set to Off, which is its default setting in a 2104 Model
DU3, the SCSI addresses of the disk drives are 0, 1, 2, 3, 4, 5, 6, 8, 9, 10, 11,
12, 13, 14, from left to right. When the switch is set to On, these addresses
are reversed.
Note:
This setting, On, is not supported in a 2104 Model TU3 or 2104
Model DU3.
16
2104 Models DU3 and TU3 Operator’s Guide
Содержание TU3 2104
Страница 1: ...Expandable Storage Plus 2104 Models DU3 and TU3 Operator s Guide SA33 3310 03...
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Страница 72: ...5 Tighten the two thumbscrews Figure 48 Tightening the Thumbscrews 56 2104 Models DU3 and TU3 Operator s Guide...
Страница 73: ...6 Verify that the amber CHK light 1 is off Figure 49 Fan Assembly Light Chapter 3 Exchanging FRUs 57...
Страница 82: ...7 Tighten the thumbscrew Figure 58 Tightening the Thumbscrew 66 2104 Models DU3 and TU3 Operator s Guide...
Страница 90: ...5 Push the lever down Figure 66 Closing the Lever 74 2104 Models DU3 and TU3 Operator s Guide...
Страница 91: ...6 Tighten the thumbscrew Figure 67 Tightening the Thumbscrew Chapter 3 Exchanging FRUs 75...
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Страница 134: ...Part Number 97P1458 Printed in the U S A SA33 3310 03 1P P N 97P1458...
