On Thu, 8 Jan 2004, Daniel Brahneborg wrote: > > Which Adaptec card? The 12xx cards are fakeraid, but are supported as > > normal cards. The 24xx cards are true hardware RAID cards. Linux > > drivers exist for these, too. I've used a couple of the 2400A cards for a while under Linux (SuSE 8.2) with mixed results - one works fine in RAID 5 mode (4x 120Gb disks), though it is very slow (typical sustained transfer on about 10Mb/s). The other is a completely different story. It keeps dropping disks from the array that subsequently test out to be perfectly okay. It also has a nasty habit of not letting me rebuild the array even after putting a new disk in. I get a 'missing component' error that even Adaptec seem to know nothing about (well, they've not bothered answering any of my e-mails about it*). This means that I have to rebuild the array again from scratch (build + verify = a complete day) and then restore the data from backup. Out of four disks that have been dropped from the array recently, three tested fine. On more than one occasion it has also given me a double disk failure within a couple of hours, not enough time to complete the rebuild for the first drive before the second one 'fails'. Again, drives subsequently tested out fine. The end result is that I got so fed up with it happening that I took the card out and dropped it into a drawer. I've replaced it with a couple of software mirroed 250Gb drives which (so far) seem to be working fine and give me a lot fewer headaches! I'd not recommend this card to *anyone* any more. * I'm pretty annoyed with Adaptec about this one - I've not even had a 'we don't know the answer' e-mail from them. I've tried eveything that I could think of including replacing all of the cables, updating the firmware on the drives (WD), hard resetting the 2400A, updating the firmware and SMOR (twice) and replacing the cache memory. I've told Adaptec about everything that I have tried and they have not even had the courtesy to reply to me. Anyone at Adaptec care to comment? Regards Dr. Andy Dawson A.J.Dawson@Bradford.ac.uk http://www.mossie.org http://www.museum-explorer.org.uk Never attribute to malice that which is adequately explained by stupidity. - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
