Did the disks that failed have anything in common? SCSI: If you have disks on 1 SCSI bus, a single failed disk can affect other disks. By removing the bad disk you correct the problems with the others. IDE: (or what ever they call it today) 2 disks on 1 bus, 1 drive failure will cause the other to fail most of the time. Power supply: If you have external disks, they will have another power supply. If you have problems with this power supply, they all could be affected. Even a common power cable can cause multi drive failures. Temperature: Disks getting too hot can cause failures. Kids: Someone turned the disk cabinet off? I am sure this list is not complete. But it may help. Guy -----Original Message----- From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid-owner@xxxxxxxxxxxxxxx] On Behalf Of comsatcat Sent: Tuesday, December 14, 2004 1:42 AM To: linux-raid@xxxxxxxxxxxxxxx Subject: Busted disks caused healthy ones to fail An odd thing happened this weekend. We were doing some heavy I/O when one of our servers had two drives in two seperate raid1 mirrors pop. This was not odd as these drives are old and the batch they are from have been failing on other boxen as well. What is odd is that our brand new disks which the OS resides on (2 drives in raid 1) half busted. There are 4 md devices md/0 md/1 md/2 md/3 md3, md2, and md1 all lost the 2nd drive in the array (sdh3, sdh6, and sdh5). md0 however was fine with sdh1 being fine. Why would losing disks cause a seemingly healthy disk to go astray? P.S. I have pull out tons of syslogs showing the two bad disks failing if that would help. Thanks, Ben - 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 - 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
