Memory buffer on HD

[guestA]

I was just wondering how DBAN handles the HD buffer. I really have no clue when they say a HD has 8mb of buffer if that means its RAM (losses info with no power) or something more stable...ie does not lose info when no power....does anybody know?

 

[dajhorn]

I was just wondering how DBAN handles the HD buffer.

DBAN makes long writes to ensure that hardware buffers are written through.

I really have no clue when they say a HD has 8mb of buffer if that means its RAM (losses info with no power) or something more stable

This means that the hard drive has 8 megabytes of onboard cache, which works like the cache on the CPU. It loses data when the computer loses power, unless it is battery backed.

(Battery backed controllers are expensive and usually have stickers that advertise the feature.)

 

[guestA]

Thanks

Thanks for the speedy reply!
BTW great program!