Re: AMD SP5100 SATA low perfomance

["Rus V. Brushkoff" <brushkoff@xxxxxxxxx>]

> "Sh*t" really only begins to describe this. So let me get this
> correctly: your Hitachi hdds weren't mounted in a very stable manner to
> the mobo chassis and vibrations from the fan caused them to fail writes
> and retry a _lot_ leading to the write performance drop?

The HDD's _was_ mounted very tight and stable, so the FAN vibration is
propagated to HDD without the problems, next the internal
accelerometer founds this vibration and lowers all the HDD operations
! If I get out the HDD from the case and mechanically isolate it from
the FAN vibration the speed momentally grows to the max value !

> And the WD ones don't have a problem with the vibrations?

The desktop WD do not have this issue as it has much more mass than
mobile one. As you can see by tests made by me - the mobile WD behaves
nearly same as Hitachi one - it lowers the HDD operations by -20Mb/s
value.

> Wow! Looks like some idiot was saving on production material/design to
> make the drives cheaper. Talk about a major serious FAIL.

This idiot is me ;) I do not take this issue in account.

Rus

-- 
Rus
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html