Would it be fixable by using mirror-copy to a different volume and then mirror-copy back after newfs?
On Fri, Jun 3, 2016, 14:24 Tomohiro Kusumi <[email protected]> wrote: > Using a 5TB disk, I filled up the first layer1 (layer#0 for the first > 4TB of the filesystem) to see if the statistics gets broken by a bug > of statistics itself. > As a result, it's not broken, so I guess your raid issue did break > your filesystem metadata. > > > [root@]~# df -T /HAMMER > Filesystem Type 1K-blocks Used Avail Capacity Mounted on > TEST hammer 4881580032 4310634400 570945632 88% /HAMMER > [root@]~# umount /HAMMER > [root@]~# hammer -vvf /dev/da4 blockmap > out > [root@]~# grep "layer1 " out -A 5 > layer1 4000000000000000 @2000000000800000 blocks-free 0 > 4000000000000000 zone=4 vol=0 L1#=0 L2#=0 L1=0 > L2=0 app=8388608 free=0 fill=100.0 > crc=9d65da9d-6663e9c8 > 4000000000800000 zone=4 vol=0 L1#=0 L2#=1 L1=0 > L2=16 app=8388608 free=0 fill=100.0 > crc=9d65da9d-6663e9c8 > 4000000001000000 zone=4 vol=0 L1#=0 L2#=2 L1=0 > L2=32 app=8388608 free=0 fill=100.0 > crc=9d65da9d-6663e9c8 > 4000000001800000 zone=3 vol=0 L1#=0 L2#=3 L1=0 > L2=48 app=8388608 free=0 fill=100.0 > crc=9d65da9d-12fb0047 > 4000000002000000 zone=3 vol=0 L1#=0 L2#=4 L1=0 > L2=64 app=8388608 free=0 fill=100.0 > crc=9d65da9d-12fb0047 > -- > layer1 4000040000000000 @2000000001000000 blocks-free 69741 > 4000040000000000 zone=10 vol=0 L1#=1 L2#=0 L1=32 > L2=0 app=8388608 free=0 fill=100.0 > crc=5cccfffc-8f523ad6 > 4000040000800000 zone=10 vol=0 L1#=1 L2#=1 L1=32 > L2=16 app=8388608 free=0 fill=100.0 > crc=5cccfffc-8f523ad6 > 4000040001000000 zone=10 vol=0 L1#=1 L2#=2 L1=32 > L2=32 app=8388608 free=0 fill=100.0 > crc=5cccfffc-8f523ad6 > 4000040001800000 zone=10 vol=0 L1#=1 L2#=3 L1=32 > L2=48 app=8388608 free=0 fill=100.0 > crc=5cccfffc-8f523ad6 > 4000040002000000 zone=10 vol=0 L1#=1 L2#=4 L1=32 > L2=64 app=8388608 free=0 fill=100.0 > crc=5cccfffc-8f523ad6 > [root@]~# tail -22 ./out > HAMMER zone statistics > zone # blocks items used[B] used[%] > zone 0 69741 0 0 0 > zone 1 0 0 0 0 > zone 2 0 0 0 0 > zone 3 128 0 1073741824 100 > zone 4 3 0 25165824 100 > zone 5 0 0 0 0 > zone 6 0 0 0 0 > zone 7 0 0 0 0 > zone 8 1075 0 8795586560 97.5363 > zone 9 2 0 5610928 33.4437 > zone 10 525078 0 4404626128896 99.9989 > zone 11 0 0 0 0 > zone 12 0 0 0 0 > zone 13 0 0 0 0 > zone 14 0 0 0 0 > zone 15 452549 0 3796256161792 100 > > ---------------------------------------------------------------------- > total 1048576 0 8210782395824 93.3458 > 0 bad layer1 > 0 bad layer2 > > > 2016-06-03 3:27 GMT+09:00 Tomohiro Kusumi <[email protected]>: > > Your total block count matches your disk size (12TB), > > so it's either layer2's bytes_free field is broken or this statistics > has a bug. > > > > > >> M block=200004b1f4800000 zone=11 calc 5386240 free, got 5470496 > >> > >> BM block=200005e72e000000 zone=9 calc 5999696 free, got 5999824 > >> > >> BM block=200006400c800000 zone=10 calc 7995392 free, got 8001360 > >> > >> BM block=2000064225000000 zone=10 calc 8192000 free, got 8257536 > >> > >> BM block=2000064225800000 zone=10 calc 8192000 free, got 8126464 > >> > >> BM block=200006445d800000 zone=10 calc 8126464 free, got 8060928 > >> > >> BM block=200006445f000000 zone=10 calc 8323072 free, got 8257536 > >> > >> BM block=2000077674000000 zone=10 calc 6864896 free, got 7192576 > > > > These errors come from the reason I mentioned above. > > > > Technically speaking, these offsets says the bad data are stored in > > the second layer1 entry, where 1 layer1 entry is 4TB. > > In other words these are beyond 4TB of the filesystem. > > I'll check if hammer blockmap/checkmap have a bug in this case > > tomorrow, before I say your metadata is broken. > > > > > > 2016-06-03 2:54 GMT+09:00 Antony T Curtis <[email protected]>: > >> Overall size of the disk is around 12 Tb. > >> > >> slightly different result from checkmap, likely because it is a mounted > >> volume... > >> > >>> M block=200004b1f4800000 zone=11 calc 5386240 free, got 5470496 > >>> > >>> BM block=200005e72e000000 zone=9 calc 5999696 free, got 5999824 > >>> > >>> BM block=200006400c800000 zone=10 calc 7995392 free, got 8001360 > >>> > >>> BM block=2000064225000000 zone=10 calc 8192000 free, got 8257536 > >>> > >>> BM block=2000064225800000 zone=10 calc 8192000 free, got 8126464 > >>> > >>> BM block=200006445d800000 zone=10 calc 8126464 free, got 8060928 > >>> > >>> BM block=200006445f000000 zone=10 calc 8323072 free, got 8257536 > >>> > >>> BM block=2000077674000000 zone=10 calc 6864896 free, got 7192576 > >>> > >>> HAMMER zone statistics > >>> > >>> zone # blocks items used[B] used[%] > >>> > >>> zone 0 0 0 0 0 > >>> > >>> zone 1 0 0 0 0 > >>> > >>> zone 2 0 0 0 0 > >>> > >>> zone 3 128 0 1073741824 100 > >>> > >>> zone 4 4 0 33554432 100 > >>> > >>> zone 5 0 0 0 0 > >>> > >>> zone 6 0 0 0 0 > >>> > >>> zone 7 0 0 0 0 > >>> > >>> zone 8 1029 0 7988363264 92.5449 > >>> > >>> zone 9 1443 0 2183889824 18.0416 > >>> > >>> zone 10 330736 0 2911421278384 104.938 > >>> > >>> zone 11 1154 0 14288724672 147.604 > >>> > >>> zone 12 0 0 0 0 > >>> > >>> zone 13 0 0 0 0 > >>> > >>> zone 14 0 0 0 0 > >>> > >>> zone 15 0 0 0 0 > >>> > >>> ---------------------------------------------------------------------- > >>> > >>> total 334494 0 2936989552400 104.67 > >>> > >>> 0 bad nodes > >>> > >>> 8 errors > >> > >> > >> > >> On 2 June 2016 at 10:42, Tomohiro Kusumi <[email protected]> > wrote: > >>> > >>> 1. What's your approximate disk size (or sum of disks) ? > >>> > >>> 2. If your total block counts from blockmap output matches your disk > size, > >>> > zone 0 1095221 0 18446744073709486080 > 2.00784e+06 > >>> this line from blockmap output shows your layer2 metadata probably had > >>> bad (broken) free_bytes. > >>> Can't tell how it was broken from this output though. > >>> > >>> 3. What are the 10 errors for checkmap ? > >>> You have output before statistics that indicates those errors. > >>> > >>> > >>> 2016-06-03 2:32 GMT+09:00 Antony T Curtis <[email protected]>: > >>> > Hammer checkmap shows this instead: > >>> >> > >>> >> HAMMER zone statistics > >>> >> > >>> >> zone # blocks items used[B] used[%] > >>> >> > >>> >> zone 0 0 0 0 0 > >>> >> > >>> >> zone 1 0 0 0 0 > >>> >> > >>> >> zone 2 0 0 0 0 > >>> >> > >>> >> zone 3 128 0 1073741824 100 > >>> >> > >>> >> zone 4 4 0 33554432 100 > >>> >> > >>> >> zone 5 0 0 0 0 > >>> >> > >>> >> zone 6 0 0 0 0 > >>> >> > >>> >> zone 7 0 0 0 0 > >>> >> > >>> >> zone 8 1029 0 7988092928 92.5418 > >>> >> > >>> >> zone 9 1443 0 2183767648 18.0406 > >>> >> > >>> >> zone 10 330734 0 2911406172336 104.938 > >>> >> > >>> >> zone 11 1154 0 14287486768 147.591 > >>> >> > >>> >> zone 12 0 0 0 0 > >>> >> > >>> >> zone 13 0 0 0 0 > >>> >> > >>> >> zone 14 0 0 0 0 > >>> >> > >>> >> zone 15 0 0 0 0 > >>> >> > >>> >> > ---------------------------------------------------------------------- > >>> >> > >>> >> total 334492 0 2936972815936 104.67 > >>> >> > >>> >> 0 bad nodes > >>> >> > >>> >> 10 errors > >>> > > >>> > > >>> > > >>> > On 2 June 2016 at 10:14, Antony T Curtis <[email protected]> wrote: > >>> >> > >>> >> This is from a hammer blockmap command. > >>> >> > >>> >> On 2 June 2016 at 10:13, Tomohiro Kusumi <[email protected] > > > >>> >> wrote: > >>> >>> > >>> >>> From which command is this from ? > >>> >>> It's not hammer show (because hammer show has non 0 items), so I > >>> >>> assume either blockmap or checkmap. > >>> >>> > >>> >>> 2016-06-03 2:05 GMT+09:00 Antony T Curtis <[email protected]>: > >>> >>> > Is there any info as to how to repair a Hammer volume or should I > >>> >>> > simply try > >>> >>> > to backup and restore? > >>> >>> > > >>> >>> >> HAMMER zone statistics > >>> >>> >> > >>> >>> >> zone # blocks items used[B] > used[%] > >>> >>> >> > >>> >>> >> zone 0 1095221 0 18446744073709486080 > >>> >>> >> 2.00784e+06 > >>> >>> >> > >>> >>> >> zone 1 0 0 0 0 > >>> >>> >> > >>> >>> >> zone 2 0 0 0 0 > >>> >>> >> > >>> >>> >> zone 3 128 0 1073741824 100 > >>> >>> >> > >>> >>> >> zone 4 4 0 33554432 100 > >>> >>> >> > >>> >>> >> zone 5 0 0 0 0 > >>> >>> >> > >>> >>> >> zone 6 0 0 0 0 > >>> >>> >> > >>> >>> >> zone 7 0 0 0 0 > >>> >>> >> > >>> >>> >> zone 8 1029 0 7986941952 > 92.5284 > >>> >>> >> > >>> >>> >> zone 9 1443 0 2183756816 > 18.0405 > >>> >>> >> > >>> >>> >> zone 10 330680 0 2910941826784 > 104.939 > >>> >>> >> > >>> >>> >> zone 11 1154 0 14287415824 > 147.59 > >>> >>> >> > >>> >>> >> zone 12 0 0 0 0 > >>> >>> >> > >>> >>> >> zone 13 0 0 0 0 > >>> >>> >> > >>> >>> >> zone 14 0 0 0 0 > >>> >>> >> > >>> >>> >> zone 15 143205 0 1201290608640 100 > >>> >>> >> > >>> >>> >> > >>> >>> >> > ---------------------------------------------------------------------- > >>> >>> >> > >>> >>> >> total 1572864 0 4137797780736 > 31.3609 > >>> >>> >> > >>> >>> >> 0 bad layer1 > >>> >>> >> > >>> >>> >> 0 bad layer2 > >>> >>> > > >>> >>> > > >>> >>> > > >>> >>> > > >>> >>> > -- > >>> >>> > Antony T Curtis > >>> >>> > > >>> >> > >>> >> > >>> >> > >>> >> > >>> >> -- > >>> >> Antony T Curtis > >>> >> 0523 C487 9187 6972 6894 > >>> >> AEC7 3087 F819 B477 B687 > >>> > > >>> > > >>> > > >>> > > >>> > -- > >>> > Antony T Curtis > >>> > 0523 C487 9187 6972 6894 > >>> > AEC7 3087 F819 B477 B687 > >> > >> > >> > >> > >> -- > >> Antony T Curtis > >> 0523 C487 9187 6972 6894 > >> AEC7 3087 F819 B477 B687 >
