Monitoring RAID on Linux

So you setup RAID on Linux and got it to work the way you wanted. Now, you're wondering how would you know if one of your drive went bad. You're thinking that the light on drive tray will blink. Well, are you sure it will blink?

Most of my servers are using Adaptec so here is what I did.

Google: download Adaptec Storage Manager
Pick a page that linked to Adaptec site. I downloaded asm_linux_x86_v5_30_17509.rpm
rpm -ivh asm_linux_x86_v5_30_17509.rpm
Don't run this: /usr/StorMan/StorMan.sh (I am using SSH so that won't work since it's a GUI).
I ran this: /usr/StorMan/arcconf
If it's complaining about libstdc++.so.5
Fix: export LD_PRELOAD=/usr/StorMan/libstdc++.so.5
Run arcconf again and you'll see the howto
I ran the line below for my card:
/usr/StorMan/arcconf GETCONFIG 1

Controllers found: 1
----------------------------------------------------------------------
Controller information
----------------------------------------------------------------------
Controller Status : Optimal
Channel description : SATA
Controller Model : SMC Adaptec 2020SA
Controller Serial Number : 267647
Physical Slot : 3
Installed memory : 64 MB
Copyback : Disabled
Background consistency check : Disabled
Automatic Failover : Enabled
Defunct disk drive count : 0
Logical devices/Failed/Degraded : 4/0/0
--------------------------------------------------------
Controller Version Information
--------------------------------------------------------
.
.
.
... and a whole lot more RAID info.