User`s guide

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Additional Information
70 RedHawk Linux Version 5.4 Release Notes
8.1.2 File System Swap Size Guidelines
Table 7-2 supplies the recommended swap partition sizes for various sizes of main
memory. The swap partition size is based on the size of the system’s main memory
plus an additional 5 percent. This swap space allocation should be adequate to
accommodate system crash dumps.
Table 7-2 Swap Partition Size Guidelines
8.1.3 RCIM Connection Modes
Before installing an RCIM on an iHawk system, determine the connection mode.
It is easier to connect the synchronization cable to the input connector before the
RCIM is installed. An RCIM can be connected in one of the following four modes:
Isolated mode There are no connections to any other RCIM.
Master mode The RCIM is at the head of a chain of RCIMs. There is no
cable connection going into this RCIM, only a cable
connection going out. The RCIM master is unique in that
it controls the synchronized clocks.
Pass-through The RCIM is connected to two other RCIMs. There is an
Slave mode input cable connection coming from the previous RCIM in
the chain, and an output cable connection going to the next
RCIM in the chain.
Final Slave mode The RCIM is connected to one other RCIM. There is an
input cable connection going into a final slave RCIM but
no output cable connection coming out of it.
8.1.4 How to Use Linux Rescue
An installation or upgrade may not boot if the following conditions exist:
• the disk LABEL scheme is not correct
• there are mismatching LABEL or partition entries in /etc/fstab and/or
/etc/grub.conf -> /boot/grub/grub.conf.
This can happen when dealing with multiple disks and can be extremely confusing.
Main Memory
Size (MB)
Recommended
Swap Partition Size (MB)
256 269
1024 1075
2048 2150
3072 3225
4096 4300
5120 5376
6144 6451
7168 7526
8192 8601