Moxa V2616A-C8-CT-W7E [64/111] File overview

V2616A Linux Hot-swap Function

6-2

File Overview

The major files are listed below:

mxhtspd: a daemon for monitoring hot-swap events

mxhtspd-setled: a command to set up LED signals

/etc/mxhtspd/scripts: scripts executed when an event occurs; the following files are included:

action-btn-long-pressed

action-btn-short-pressed

action-disk-plugged

action-disk-unplugged

action-part-over-usage

/etc/mxhtspd/mxhtspd.conf: configuration file for the mxhtspd daemon

libmxhtsp.so: library

Hot-swap Daemon Configuration

An mxhtspd daemon is provided for the V2616A hot-swap function. It is launched with the

/etc/init.d/mxhtspd.sh script at startup and will detect the disk status in the background.

You can configure mxhtspd with the following options:

-t time: time in seconds to identify how long a button is pressed

-i interval: interval in seconds to check partition usage

-l facility_num: log daemon's message by rsyslogd with LOCAL[facility_num]

-v: run in verbose mode

-h: print usage

The following example shows how to use the –v option to modify /etc/init.d/mxhtspd.sh:

…

start)

echo "Starting mxhtspd daemon..."

sleep 1

mxhtspd -v &

…

The mxhtspd daemon also provides the capability to monitor partition usage. You can configure the

mxhtspd.conf file to monitor a mount point of hotswap disks such as /medik/disk1p1. Note that disknpm

is the m-th partition of hotswap disk n.

An example of mxhtspd.conf is shown below:

#mount point usage limit(%)

/media/disk2p1 90

/media/disk1p1 90

…

When more than 90% of either partition 1 of disk 2, or partition 1 of disk 1 is in use, the corresponding event

will be triggered.