Hardware test check my HD?

[umbilical]

hi there, If I run the hardware test, they can check possible errors on my hd? I remember on pc a soft in the 90s for check bad clusters on the hd, on mac I know disk warrior... but I never use... its necessary use disk warrior or something... I hear people that say that its bad...

thanks

 

[yadmonkey]

hi there, If I run the hardware test, they can check possible errors on my hd? I remember on pc a soft in the 90s for check bad clusters on the hd, on mac I know disk warrior... but I never use... its necessary use disk warrior or something... I hear people that say that its bad...

thanks

Disk Warrior is a great program. In fact it's really the only single utility which I find indispensable in maintaining Macs.

But it's a one-trick pony. I've used Tech Tool to perform surface scans when necessary. Not sure if there are any free utilities to do that.