MAC OS X Leopard with external drive error

[essential]

Two externals aren't showing up on the OS. I've reset power management with no success. The drives work, there's no problem there, just OS X isn't recognizing them anymore. Both drives are partitioned in apple format. Any suggestions?

 

[VirtualTracy]

Are they USB drives? Do they show up in Disc Utility or System Profiler? Is there a hub involved?

 

[essential]

The drives are connected directly to the macbook pro. Were no issues for a long time until recently. One drive is firewire 400, the other drive is firewire 800. They do not show up in disk utility.

 

[ElDiabloConCaca]

Would they happen to be LaCie-brand drives?

 

[essential]

These are Western Digital Mac ready drives. They are working just not being recognized by the OS all of a sudden.

 

[DeltaMac]

Will either drive work if you connect just one at a time?

 

[essential]

Well in answer to your question as well as good news.. neither drive was working showing up on the OS. I had unplugged, refreshed connections at the port neither of them came up. However, I just refreshed the firewire 400 only at the port and both drives are back online.

 

[VirtualTracy]

Fantastico