Adaptec GDTSETUP Installationshandbuch PDF herunterladen (Seite 20)

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Whenever the program mkdev hd (ADM) is started, you will be asked for the coordinates of

the device you wish to install. The driver does not automatically display all devices connec-

ted, so after the installation you will find a tool named

GDTSCAN

in the directory '/etc'.

The scanning can take up to several seconds, especially when there is more than one con-

troller in the system. The devices are displayed together with their host adapter number,

target-ID and LUN. These values are to be used in mkdev (ADM). Let's have a brief look at

how the HA-no., target-ID and LUN are determined. Please note that the UNIX driver al-

ways maps the first detected Host Drive with target-ID 0, LUN 0. Exactly this drive would be

used as a boot drive when the ICP Controller is to make the boot drive available. As an al-

ternative for the following "new" mapping method of SCO UNIX V/386 3.2v5.x, you may also

use the mapping as described in section II.3 (for 3.2v2.0 & 3.2v4.x). To enable this ("old")

mapping, change in the

/etc/conf/pack.d/gdth/space.c

gdth_mapping=1 into

gdth_mapping=0

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The host adapter number assigned to the ICP Controller is derived from the PCI slot num-

ber of the ICP Controller. Therefore, if there is only one ICP Controller installed in the PCI

bus computer system, the host adapter number=0. If there are two ICP Controllersinstalled,

the ICP Controller with the lower PCI Slot number is assigned host adapter number 0 and

the ICP Controller with the higher PCI slot number is assigned host adapter 1. (Note: After

a cold boot, the GDT BIOS displays a couple of messages, each beginning with the con-

troller’s PCI slot number, e.g. "[PCI 0/3] 4 MB RAM detected". The number after the ‘/’ is the

slot number of the controller. This helps you to determine which is the order of the ICP

Controllers and and which host adapter number is assigned to them by UNIX. See also

chapter B, Hardware Installation).

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Target-IDs and LUNs for

“Not Direct Access Devices“

(devices like streamers, tapes and

CD-ROMs and therefore not configurable via GDTSETUP), are directly assigned to the SCSI-

ID and the channel of the ICP Controller. Host Drives are assigned in increasing order to

the free coordinates (bus number and target ID;LUN is always 0).

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In the PCI computer are two ICP Controllers (HA 0 = 1st GDT, HA 1 = 2nd GDT), each with

two SCSI channels.

1 hard disk as Host Drive no. 0 on HA0

1 hard disk as Host Drive no. 0 on HA1

1 hard disk as Host Drive no. 1 on HA1

1 Streamer SCSI-ID 2, LUN 0 on SCSI channel A of HA0

1 CD-ROM SCSI-ID 3, LUN 0 on SCSI channel B of HA0

1 DAT SCSI-ID 2, LUN 0 on SCSI channel A of HA1

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 92 93

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