Adaptec 2074700-R - ICP Vortex GDT8514RZ RAID Controller, Руководство пользователя

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Software Installation and User’s Guide 85
Installing SCO OpenServer
8.2 Instructions on mkdev (ADM) for 3.2v5.x (Open
Server)
When 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
connected, so after the installation you will find a tool named SRCSCAN in the directory
/etc to display all devices. The scanning can take up to several seconds, especially when
there is more than one controller in the system. The devices are displayed together with
their host adapter number, target ID and LUN. These values are used in
mkdev (ADM).
How the HA-no., target ID and LUN are determined are discussed in Section 8.2.1
through Section 8.2.3 . Note that the UNIX driver always maps the first detected host drive
with target ID 0, LUN 0. This drive is used as a boot drive when the ICP RAID controller
is to make the boot drive available.
8.2.1 Host adapter Number (HA)
The host adapter number assigned to the ICP RAID controller is derived from the
controller’s PCI slot number. Therefore, if there is only one ICP RAID controller installed
in the PCI bus computer system, the host adapter number is 0. If there are two ICP RAID
controllers installed, the ICP RAID controller with the lower PCI slot number is assigned
host adapter number 0 and the ICP RAID controller with the higher PCI slot number is
assigned host adapter 1. (Note: After a cold boot, the ICP RAID BIOS displays a couple
of messages, each beginning with the controller’s PCI slot number, for example,
“[PCI 0/3] 4 MB RAM detected”. The number after the ‘/’ is the slot number of the
controller. This will help determine the order of the ICP RAID controllers and which host
adapter number is assigned to them by UNIX. See the
Hardware Guide for more details.
8.2.2 UNIX Target ID and LUN
Target IDs and LUNs for Non-Direct Access Devices (devices like streamers, tapes and
CD-ROMs and, therefore, not configurable via ICPCON), are directly assigned to the
SCSI ID and the channel of the ICP RAID controller. Host drives are assigned in
increasing order to the free coordinates (bus number and target ID, LUN is always 0).
8.2.3 Configuration Example
In this example, the PCI computer has two ICP RAID controllers (HA 0 = 1st ICP RAID
controller, HA 1 = 2nd ICP RAID controller), each with two SCSI channels. See the
information below. The resulting HA, Bus, Target ID and LUN are indicated in
Table 8-6 .
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 Hard Disk as host drive no. 2 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