David Gwynne wrote:
let's not wave our hands around in the air for no good reason. surely there
are more important things to get upset about.
I have to object here.
If I understood the original article correct this would mean that the
writing of 1 sector could in fact be 2 reads + 1 write (internally in
the disk), which would be a *serious* performance hit (we are not
talking 5-10% here...).
I don't know about the effect on RAID controllers that you mentioned,
but I guess their cache helps to hide those effects and also they are
not in use on every PC.
The affected SATA disks on the other hand will be in use on basically
every new i386/amd64 system in the near future and I don't know how much
their internal cache will help. I see a big problem coming up... ?
regards,
Robert
