Is bin ever written to?

[Knapp]

On Wed, Dec 24, 2008 at 12:33 AM, Smoot Carl-Mitchell <smoot at tic.com> wrote:
> On Wed, 2008-12-24 at 00:10 +0100, Knapp wrote:
>
>> I just got a new drive, I have 2 drives now. One has home and the
>> other has the rest. Are you saying that RAID would make it even
>> faster? Would that work when one is a bit older and smaller? They are
>> both by the same company.
>
> You cannot do much with 2 drives except RAID1 which is a simple mirror.
> That actually slows down write requests (it has to write the data
> twice), but speeds read requests, since there is two disk heads.  If
> they are on the same controller, then any speed increase depends on how
> capable the controller is - can it do concurrent seek operations?  Since
> your drives are not the same size, you would only be able to mirror the
> capacity of the smaller drive.
>
> You could do RAID0 which would stripe the data between the two drives
> which would speed read access, but I would not recommend that.  If you
> lose one drive, you lose all your data. You could also concatenate the
> two drives together into one big "virtual" drive, but you would have the
> same failure issues as with RAID0.
>
> I do not think you are going to gain much performance beyond
> splitting /home out on the 2nd drive.
> --
> Smoot Carl-Mitchell

Thanks for your input. That is what I was thinking but I am not in any
way an expert on that subject.
-- 
Douglas E Knapp

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