Satoru Takeuchi <takeuchi_satoru@xxxxxxxxxxxxxx> wrote: > > In addition, to confirm whether this problem is caused only by > Btrfs or not, the following way can be used. > > 1. preparing the extra storage, > 2. copy Btrfs's data into int by dd if=<LVM volume> of=<extra storage> > 3. Use it and confirm whether this problem still happen or not I've already copied the ~16TB of data from the btrfs filesystem to an XFS filesystem. I do not see the performance variability under xfs that I see under btrfs. > However, since the size of your Btrfs is quite large, I guess you > can't do it. If you have such extra storage, you've already > embed it to Btrfs. Actually, I decided to move to xfs, at least for now. Apparently not many people are using btrfs with filesystems >15TB, so it seems I'm in more-or-less uncharted territory, at least according to the responses I've gotten when looking into this issue. Charles -- ----------------------------------------------------------------------- Charles Cazabon GPL'ed software available at: http://pyropus.ca/software/ ----------------------------------------------------------------------- -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
