Re: RAID monitor?

[steve rader]

 > From: Theo Van Dinter
 > Just curious--
 > 
 > has anyone written a generic "monitor" script that checks the status of the 
 > RAID arrays currently in use?  something that might mail if there's an error
 > ?
 > 
 > I started working on one, but don't want to reinvent the wheel.

I just wrote the enclosed.

I'll use

0 * * * * /etc/raid.d/mdmon 
steve



#!/usr/bin/perl
#

if ( ! -f "/proc/mdstat" ) {
  print "no /proc/mdstat (kernel doesn't have md support?)\n";
  exit 1;
}

open(IN,"</proc/mdstat");
while (<IN>) {
  if ( $_ =~ /\s+active\s+/ ) {
    $_ =~ /\[(\d+)\/(\d+)\]/;
    $count = $1;
    $active = $2;
    if ( "$active" ne "$count" ) {
      @F = split(/\s+/);
      print "Warning: /dev/$F[0] has a dead partition!\n";
      print "$_";
    }
  }
}