Notes On San Boot System Design; Notes On San Boot System Installation - Cisco C880 M4 Configuration Manual

4.
6.

Notes on SAN Boot System Design

Note the following points when designing the SAN boot system:
●
Some software may require high performance for Fibre Channel traffic. Be sure to measure Fibre Channel
performance on a test system before installing software.
● For SAN storage, the boot disk assigned for each server must be configured so that it can be accessed
exclusively by that server. You accomplish this by zoning or masking LUNs or by combining them. (In a
SAN boot environment, boot disk LUNs must be configured so that servers and storage have a one-to-one
correspondence.)
●
Only a single pass is effective for dump output of sadump. Therefore, Even if a pass is cut during dump
output, other passes don't become effective. Without continuing, the dump output is failed.
●
Only a port on the Fibre Channel card used for an OS start makes the boot setting effective. When boot
setting in a port on the Fibre Channel card which isn't used for an OS start (data pass) becomes effective,
OS doesn't sometimes start.

Notes on SAN Boot System Installation

Only the boot disk must be visible during installation of the OS. Disconnect all disks other than the installation
destination disk. For a multipath configuration, change to a single-path configuration (only one Fibre Channel cable
connected). Also, the settings on the SAN storage side must be configured so that only the boot disk is visible.
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Install the OS and bundled software:
1. Use the Synchronous Versatile Input Module (SVIM) to install the OS and bundled software.
2. Install the multipath driver as required.
3. Following the Fibre Channel cabling diagram created in step 1, connect the Cisco C880 M4 to the SAN
storage and Fibre Channel Fibre Channel switch.
4. Register the boot disk (the LUN that is the destination of the OS installation) in all the HBAs to be used
to start the system.
5. Register the LUN at the dump output destination on the Fibre Channel card when you configure it for
sadump to dump device SAN storage.
Configure the SAN boot environment:
a. Specify the priority of the boot devices with the UEFI or traditional BIOS of the Cisco C880 M4.
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