On Sat, May 26, 2012 at 02:15:41AM +0800, Kenneth Langga wrote: > It's a 3TB harddisk. Could that be the reason? > > Right now, it's mounted read-only. Is it safe to make it read/write > again? And can I run nilfs-clean on it and maybe the error would be > gone? > You should be able to remount read/write, as you'll still have your old snapshots or checkpoints to mount from instead if it all goes wrong. In my experience, though, once the clearner fails to be able to clean segments due to logical errors, it's game over and a backup/mkfs/restore is needed. But then, I mostly run NIFLS on small slow SDD, so that's no great hardship. We desperately need a fsck to handle scenarios like that. I can't see the size of the disk being a problem. All the data pointers are 64-bit, so should comfortably handle 3TB. In short, try read-write, but be prepared to reformat. Also, if you're using a 3TB disk for NILFS to store media files, I'd perhaps suggest against it, if not for the reason that backup/restore on that much data will take an age. I currently stick to nilfs for my root filesystems, leaving big and/or personal data on more stable, less cutting edge filesystems. Christian -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html