Hard drive test for external drives?

[Ant.honey]

I'd like to check some drives on my Drobo. Suggestions for how to go about it?

 

[Warbitrary]

Define "check some drives".

Do you want a stress test? benchmark? SMART status report?

 

[Ant.honey]

Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3)

Sorry. I'm looking to do a diagnostic type test. Something skin to Apple Hardware test. Thanks.

 

[Warbitrary]

The only utilities I know for checking drive health are SMART Utility and Smart Drive. They both read the drive's SMART data, which will not be accurate in all cases. For example, my iMac's internal drive has been flagged as likely to fail within a month, for 6 months…

SMART Utility is 25$ but has more features and more detailed reports
Smart Drive is very basic but costs only 2.49$

Trials are available for both.

Edit: I'm not sure if SMART reporting works over Firewire or USB. Maybe you need eSATA. It's worth a try anyway.