IBM T400 Computer Drive User Manual


 
Setting the Loop ID to Provide Additional Loop IDs
If Feature Switch 3 on the Ultrium 2 Tape Drive is set to ON (see 1 in Figure 6 on
page 20), the LID/status connector 2 has the following definition:
v Pins 1 through 7 are used to set the LID.
v Pin 8 overrides pins 1 through 7. If you place a jumper on pin 8, the drive uses
its vital product data (VPD) to set the AL_PA. A tape library can set the AL_PA in
VPD through the LDI interface.
v Pin 9 is ground.
Note: Feature Switch 3 does not support LEDs on an enclosure. Therefore, when
Feature Switch 3 is set to ON, the drive can report Fibre Channel problems
(error codes 8 and F) on the single-character display, but not by using the
enclosures external indicators.
To set the AL_PA:
__ 1. Determine an unused AL_PA address for the drive and refer to Table 6 for its
corresponding LID.
__ 2. Locate the LID/status connector on the drive (see 2 in Figure 6 on
page 20).
__ 3. Place jumpers on pins 1 through 7 as shown in Table 6 or on pin 8.
Table 6. ID settings that provide additional Loop IDs. The table lists the AL_PAs, corresponding LIDs, and definitions
of the jumpers on the connector pins. Feature Switch 3 must be set to ON.
AL_PA LID
Pin
(see Notes)
AL_PA LID
Pin
(see Notes)
1234567 1234567
EF 0 ------- B1 21 -G----G
E8 1 ------G AE 22 -G---G-
E4 2 -----G- AD 23 -G---GG
E2 3 -----GG AC 24 -G--G--
E1 4 ----G-- AB 25 -G--G-G
E0 5 ----G-G AA 26 -G--GG-
DC 6 ----GG- A9 27 -G--GGG
DA 7 ----GGG A7 28 -G-G---
D9 8 ---G--- A6 29 -G-G--G
D6 9 - - -G- -G A5 2A -G-G-G-
D5 A - - - G - G - A3 2B - G - G - G G
D4 B - - - G - G G 9F 2C - G - G G - -
D3 C - - - G G - - 9E 2D - G - G G - G
D2 D - - - G G - G 9D 2E - G - G G G -
D1 E - - - GGG - 9B 2F - G -GGGG
CE F - - - GGGG 98 30 - GG ----
CD 10 --G---- 97 31 -GG---G
CC 11 --G---G 90 32 -GG--G-
CB 12 - - G - - G - 8F 33 - G G - - G G
CA 13 - - G - - G G 88 34 - G G - G - -
C9 14 - - G - G - - 84 35 - G G - G - G
C7 15 - -G-G-G 82 36 -GG-GG-
C6 16 - - G- GG - 81 37 - GG- GGG
22 IBM TotalStorage LTO Ultrium 2 Tape Drive