Messages in this thread | | | Date | Thu, 25 Sep 2003 00:12:53 -0700 | From | Aaron Lehmann <> | Subject | Complete I/O starvation with 3ware raid on 2.6 |
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I'm running bkcvs HEAD on a newly installed system, and started copying files over to my RAID 5 from older IDE disks. When I copy these files, the system becomes unusable. Specifically, any disk access on the 3ware array, no matter how simple, even starting 'vi' on a file, takes minutes or eternity to complete. Suspending the process doing the copying doesn't even help much, because the LEDs on the card continue blinking for about 30 seconds after the suspension. This happens whether the IDE drive is using DMA or not. It seems that some kind of insane queueing is going on. Are there parameters worth playing with? Should I try the deadline I/O scheduler? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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