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