Ah ha.... # ls -l /sys/block/*/holders/* lrwxrwxrwx 1 root root 0 Feb 26 06:28 /sys/block/sdb/holders/dm-0 -> ../../../block/dm-0 lrwxrwxrwx 1 root root 0 Feb 26 06:28 /sys/block/sdc/holders/dm-0 -> ../../../block/dm-0 which I am assuming is dmraid? I did a quick check, and # dmraid -r No RAID disks Doesn't look like there is anything defined. I know that both sdb and sdc (as well as sda) are connected to SATA cards which support RAID under windows... However, I know there is no arrays defined on them on the cards (at least not by me)... I will bounce the server again and check. Graham ----- Original Message ---- From: Neil Brown <neilb@xxxxxxx> To: jahammonds prost <gmitch64@xxxxxxxxx> Cc: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>; linux-raid@xxxxxxxxxxxxxxx Sent: Sunday, 25 February, 2007 11:40:26 PM Subject: Re: trouble creating array On Sunday February 25, gmitch64@xxxxxxxxx wrote: > > > Any ideas how to find out what has it open? I can happily write all over the disk with dd... I can create and delete the partition, and it's all good... I will try deleting the sd{b,c}1 partitions, reboot, and see what happens. > ls -l /sys/block/*/holders/* ?? NeilBrown ___________________________________________________________ The all-new Yahoo! Mail goes wherever you go - free your email address from your Internet provider. http://uk.docs.yahoo.com/nowyoucan.html - 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