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

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64 Software Installation and User’s Guide
Installing Linux
5.5 GDTH Driver Parameters
5.5.1 Reservation of SCSI Devices
The reservation of SCSI devices becomes necessary if you want Direct Access Devices
(for example, hard disks, removable hard disks like Iomega or SyQuest) to be directly
controlled by Linux and not the ICP RAID controller's firmware (for example, they are
not configured as host drives).
Reservation of SCSI devices is also called raw-service . In this case the ICP RAID
controller does not cache the data to/from the reserved SCSI device. This reservation is
important for removable hard disks. If they are controlled by the ICP RAID controller and
are a host drive, a media change is very difficult.
Non Direct Access Devices like CD-ROMs, Streamers, DATs, etc. do NOT require a
reservation.
Important:
The reservation of SCSI devices is only possible with not-initialized SCSI
devices. (Use ICPCON to de-initialize an already initialized device).
1. From driver version 1.10 on you can add the parameters for the reservation with the
LILO append command:
Excerpt of /etc/lilo.conf:
# End LILO global section
# Linux bootable partition config begins
image = /boot/vmlinuz
root = /dev/sda2
label = Linux
append = "gdth=reserve_list:1,0,6,0"
# Linux bootable partition config ends
This gdth driver parameter reserves the SCSI device that is connected with ICP RAID
controller 1 (the second ICP RAID controller), SCSI Bus 0 (channel A), ID 6, LUN 0
for Linux (raw service).
After each change in /etc/lilo.conf lilo must be loaded once.
Driver parameters may also be entered at the LILO boot prompt. (for example:
gdth=reserve_list:1,0,6,0).