Molle Bestefich wrote: > Does anyone know of a way to disable libata's 5-time retry when a read fails? > > It has the effect of causing every failed sector read to take 6 > seconds before it fails, causing raid5 rebuilds to go awfully slow. > It's generally undesirable too, when you've got RAID on top that can > write replacement data onto the failed sectors.. > > Log showing a failed sector: > Apr 18 09:49:53 linux kernel: end_request: I/O error, dev sda, sector 131124407 > Apr 18 09:49:55 linux kernel: ata1: no sense translation for status: 0x51 > Apr 18 09:49:55 linux kernel: ata1: translated ATA stat/err 0x51/00 to > SCSI SK/ASC/ASCQ 0x3/11/04 > What kernel Molle? There were some nasties in 2.6.15 to do with FUA. Have a look for my postings in linux-ide (my problems are still not entirely resolved). (I got very used to mdadm --force and xfs_repair during that experience!) David -- - 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
