Re: Raid on USB2 ?

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Ken Walker <ken.walker@xxxxxxxxxxxxxxxx> writes:

> Anybody tried a Raid1 or Raid5 on USB2.
>
> If so did it crawl or was it usable ?

Yes, I used this for two by two drive RAID-1 arrays.

It was usable, but not pleasantly.  The machine became very I/O bound,
with human scale delays introduced into previously "instant" processes
such as opening an IMAP mailbox, scanning a directory listing, etc.

I wouldn't advise more than two or three drives per USB controller, and
would expect poor performance even then.

    Daniel

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