Do external Hard disk cases spin down disks

[vibec]

I am using a linsys NSLU2 which is a network disk controller with some USB 2 external hard drive cases.

Does anyone know if the hard disks in external cases spin down after a while?
It just that i am using it for backup and I leave it on for 24/7. if the disk is spinning all that time, I am worried about reliability of the drive

thanks

 

[Lazn_Work]

Leaving it spinning would actually make the drive last longer than spinning it up and down all the time.

It is on spin up that most drives fail.

==>Lazn

 

[unhappy_mage]

if you only run a backup once a week, just disconnect it the rest of the week. no reason to spin it if you're not going to use it.