Hello, David Shaw wrote: >>> Starting with two 500GB SATA drives (interface card uses a Silicon >>> 3124 chipset), /dev/sdd and /dev/sde. I partitioned each into two >>> 250GB chunks (250*1000*1000*1000, not 250*1024*1024*1024), and set up >>> two RAID 1 sets such that /dev/md0 is /dev/sdd1+/dev/sde1 and /dev/md2 >>> is /dev/sdd2+/dev/sde2. I then created a volume group ("storage") on >>> top of /dev/md0 and /dev/md1. Finally, I allocated two logical >>> volumes on top of that: "one" is -L300GB and "two" is -L100GB. >> -ETOOMANYCOMPNONETS. If it's data corruption with sata_sil24, it's >> highly likely that you're gonna be able to regenerate the problem >> without using raw /dev/sdd and /dev/sde devices. Please try that. Oops, sorry, s/without/with/ > It fails whether I use a raw /dev/sdd or partition it into one large > /dev/sdd1, or partition into multiple partitions. sata_sil24 seems to > work by itself, as does dm, but as soon as I mix sata_sil24+dm, I get > corruption. Hmmmm.... Can you reproduce the corruption by accessing both devices simultaneously without using dm? Considering ich5 does fine, it looks like hardware and/or driver problem and I really wanna rule out dm. Thanks. -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html