Have script check for Array being up before executing?

[tmchow]

My array is currently offline as I'm investigating an issue with one of the disks. I noticed that one of my seedbox sync scripts still runs and runs amuck because the array isn't online and it starts creating folders within /mnt/user.

 

This leads me to the question of how do I get a script to check for array being up correctly before it executes?  IOW, if the array is down, I want to abort the script.

[RobJ]

Don't know if this is what you want, but hopefully you can derive something from this bash script piece.

 

# Check if array is started
ls /mnt/disk[1-9]* 1>/dev/null 2>/dev/null
if [ $? -ne 0 ]
then
   echo "ERROR:  Array must be started before using this script"
   exit
fi

[Squid]

Don't know if this is what you want, but hopefully you can derive something from this bash script piece.

 

# Check if array is started
ls /mnt/disk[1-9]* 1>/dev/null 2>/dev/null
if [ $? -ne 0 ]
then
   echo "ERROR:  Array must be started before using this script"
   exit
fi

Funny....  I was going to have him parse vars.ini, and never thought about a simple check for directory existing.  Simple solutions are usually the best 

[tmchow]

Don't know if this is what you want, but hopefully you can derive something from this bash script piece.

 

# Check if array is started
ls /mnt/disk[1-9]* 1>/dev/null 2>/dev/null
if [ $? -ne 0 ]
then
   echo "ERROR:  Array must be started before using this script"
   exit
fi

 

Is checking for the disks enough? Any reason why I couldn't just check for /mnt/user existing?

 

e.g.

 

if [ -d "/mnt/user"]
  <do something>
else
  <do something else>
fi

[RobJ]

I can't take any credit, I took it from others scripts!

 

Is checking for the disks enough? Any reason why I couldn't just check for /mnt/user existing?

 

Checking for the disks is enough to know if the array is started.  Checking for /mnt/user is also fine, *if* you know the user has User Shares enabled.  If they don't, there won't be a /mnt/user, ever.  I don't have it in my system.