[Wolves] Is this something Linux users need to think about?
chris.ellis.intrbiz at googlemail.com
Tue Mar 9 22:50:34 UTC 2010
> Hi Folk
> Just read the following on the BBC news
> Is this something us Linux users need to worry about? Are we already ahead
> of the game? I know the current file systems Ext sort are clever, but not
> sure how they will deal with a new hard drive of this spec?
The change is the sector size of disk drives. On a 2TB drive moving from
512B sectors to 4kB sectors saves ~20% of the raw space which was wasted.
This is due to every sector having headers and a checksum which waste raw
space. Making the sectors bigger only adds a few extra bytes to the checksum
but reduces the sector count significantly, thus reducing the raw space
wasted on headers and checksums. This change is only reflected at the block
device level and in theory this should have no impact upon the filesystem
layer. Additionally as far as I'm aware the current kernel supports the
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