check the system mount

ust · #1 (**permalink**) 04-01-2005

I have a system mount between , but sometimes the connection will be broken because the network unstable , so that some process will be fail to run , it will cause some problems to us , could suggest is there any method that I will be informed once connection is lost ? or could suggest any script that can check ( eg. every hour ) the connection is normal or not ? thx in advance.

Sergiu-IT · #2 (**permalink**) 04-01-2005

Quote:

Originally Posted by ust

I have a system mount between , but sometimes the connection will be broken because the network unstable , so that some process will be fail to run , it will cause some problems to us , could suggest is there any method that I will be informed once connection is lost ? or could suggest any script that can check ( eg. every hour ) the connection is normal or not ? thx in advance.

Hi !
I have kinda same problem, and for that I've maked a simple bash script that will send a ping to each computer in the network. It sends the ping, if the ping is ok, it says "OK", else it beeps and it says "HOST IS DOWN". I have done all this in a while loop, and at the end of the while I put the 'sleep 20' command to wait 20 seconds before the next set of pings...
Try something like this changing the timeout to 3600 seconds or so...
I hope it helped...
bye !

ust · #3 (**permalink**) 04-01-2005

thx reply , do you mind post the script ? thx

Sergiu-IT · #4 (**permalink**) 04-01-2005

No, I don't mind at all, only that I don't have it at home, only at work.
Anyway, here is a script that looks like it.

Code:

#! /bin/sh

for ip in `cat file.txt`
do
    ping -c 1 $ip > /dev/null
    if [ $? -gt 0 ]; then echo -e "Host is down !\a";
       else echo -e "Host is alive !"
    fi
    sleep 20;
done

The script that I use at work is a much complex, but this is the ideea... You can change it a little bit to send the message to /dev/console also or wherever you think you need it... or even in a file...
The file.txt is a file where you have the list of IPs to ping, one IP on each line.
And... by the way, it is a for loop, not while like I sayd before...

.

I hope it's usefull...
Bye !

ust · #5 (**permalink**) 04-02-2005

know ping can check whether host is exist or not , however , what my problem is sometimes the host is exist but the mount connection is lost between two servers , I just want to make sure the mount is connected ,

The above script seems only check the remote host is exist or not , but can't know the status of the system mount , could suggest what can I do ? thx

Sergiu-IT · #6 (**permalink**) 04-02-2005

Quote:

Originally Posted by ust

know ping can check whether host is exist or not , however , what my problem is sometimes the host is exist but the mount connection is lost between two servers , I just want to make sure the mount is connected ,

The above script seems only check the remote host is exist or not , but can't know the status of the system mount , could suggest what can I do ? thx

Oh, It seems that I missunderstood you. Sorry. Anyway, I don't know if you can do this by scripts... probably if you'll give me some more details I can think about it.
But why don't you try to make a simple C program. Using sockets is not so difficult and that will be a much "professional" solution

Sorry I couldn't help you...
Bye !

reborg · #7 (**permalink**) 04-02-2005

Can you at least indicate what OS you are using here, and what way the filesystem is mounted (what options are used)

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