2011-04-04 20:07:54 +0100, Stephane Chazelas: [...] > > > 4.7 more days to go. And I reckon it will have written about 9 > > > TB to disk by that time (which is the total size of the volume, > > > though only 3.8TB are occupied). > > > > Yes - that's the pessimistic estimation. As Hugo has explained it can > > finish faster - just look to the data tomorrow again. > [...] > > That may be an optimistic estimation actually, as there hasn't > been much progress in the last 34 hours: [...] The rate is going down. It's now down to about 14kB/s [658654.295752] btrfs: relocating block group 3919858106368 flags 20 [671932.913235] btrfs: relocating block group 3919589670912 flags 20 [686189.296126] btrfs: relocating block group 3919321235456 flags 20 [701511.523990] btrfs: relocating block group 3919052800000 flags 20 [718591.316339] btrfs: relocating block group 3918784364544 flags 20 [725567.081031] btrfs: relocating block group 3918515929088 flags 20 [744415.011581] btrfs: relocating block group 3918247493632 flags 20 [762365.021458] btrfs: relocating block group 3917979058176 flags 20 [780504.726067] btrfs: relocating block group 3917710622720 flags 20 Even though it is reading and writing to disk at a much higher rate. Here stats every second: --dsk/sda-----dsk/sdb-----dsk/sdc-- read writ: read writ: read writ 0 0 : 540k 0 : 12k 0 0 0 : 704k 0 : 20k 0 0 0 :1068k 0 : 24k 0 0 0 : 968k 0 : 0 0 0 0 : 932k 0 :4096B 0 0 0 : 832k 880k: 152k 1320k 60k 4096B: 880k 140k: 0 28M 68k 0 : 308k 0 :4096B 9240k 0 48k: 0 0 : 0 7852k 0 0 : 576k 6192k:4096B 26M 0 0 : 100k 18M: 0 0 0 0 : 28k 10M: 0 0 0 0 : 0 7020k: 0 0 0 0 : 52k 13M: 0 0 0 12k: 528k 17M: 0 12k 0 0 : 884k 0 :8192B 0 0 0 :1068k 0 : 20k 0 0 0 : 660k 0 : 0 0 0 40k: 776k 0 :4096B 0 0 0 : 576k 0 : 0 0 0 0 : 596k 0 :8192B 0 1096k 28k: 664k 0 :4096B 0 0 0 : 660k 0 : 0 0 0 0 : 592k 0 :8192B 0 At this rate, the balancing would be over in about 8 years. Since the start of the balance: Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn sda 10.04 1.56 1.57 1228286 1237359 sdc 396.24 1.77 3.95 1397015 3115057 sdb 421.17 1.87 3.95 1473759 3115093 I think that's the end of my attempt to transfer that FS to another machine (see other thread). I'll have to ditch that copy and try again from scratch with another approach. Before I do that, is there anything I can do to help investigate the problem? regards, Stephane -- 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
