Moore, Eric wrote: > On Wednesday, April 09, 2008 4:54 AM, Rick Warner wrote: > > > > Join the club. I have an LSI SAS with 3x 750gb seagate sata drives in > > raid5. Does this happen only on your SATA drives or all the drives? > > Depending on the activity, it would drop one of them out of the > > array. I think the problem has been solved for now by changing the > > queue_depth to 1. > > > > echo 1 > /sys/block/sdX/device/queue_depth > > > > Here's the drives in my system: > > [0:0:0:0] disk ATA ST3750640AS E /dev/sda > > [0:0:1:0] disk ATA ST3750640AS E /dev/sdb > > [0:0:2:0] disk ATA ST3750640AS E /dev/sdc > > > > > Rick - I thought you said the magic number was 32 for SATA devices? And > we confirmed that in the logs you sent yesterday. Is that correct, or > did I miss something. That was ment for me. >From what I read, the number is 31 for sata drives (I'm not sure about sas and not sure if it relates to sata drives on a sas controller). However, I set mine to 1 specifically and have not had a problem. I'd rather not try 31 and a drive drop out again. It takes 4 hours to rebuild the array and I've had to do it with the system offline. -- Lab tests show that use of micro$oft causes cancer in lab animals Got Gas??? -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
