Re: cannot destroy faulty zvol

2017-07-23 Thread Eugene M. Zheganin 

Hi.

On 23.07.2017 0:28, Eugene M. Zheganin wrote:

Hi,

On 22.07.2017 17:08, Eugene M. Zheganin wrote:


is this weird error "cannot destroy: already exists" related to the 
fact that the zvol is faulty ? Does it indicate that metadata is 
probably faulty too ? Anyway, is there a way to destroy this dataset ?
Follow-up: I sent a similar zvol of the thexactly same size into the 
faulty one, zpool errors are gone, still cannot destroy the zvol. Is 
this a zfs bug ?
Seems like it. zdb shows some "invisible" dataset not shown by zfs list 
-t all, one of them is a child dataset of the one I'm trying to destroy:


# zdb -d zfsroot
Dataset mos [META], ID 0, cr_txg 4, 60.7M, 1078 objects
Dataset zfsroot/usr/src [ZPL], ID 1181, cr_txg 59832, 1.03G, 158964 objects
Dataset zfsroot/usr/home [ZPL], ID 1197, cr_txg 59911, 21.7M, 551 objects
Dataset zfsroot/usr/ports [ZPL], ID 1189, cr_txg 59881, 887M, 335670 objects
Dataset zfsroot/usr [ZPL], ID 1173, cr_txg 59829, 23.0K, 7 objects
Dataset zfsroot/tmp [ZPL], ID 1253, cr_txg 59931, 6.66G, 480610 objects
Dataset zfsroot/userdata/worker226 [ZVOL], ID 940, cr_txg 59580, 12.0K, 
2 objects
Dataset zfsroot/userdata/worker251 [ZVOL], ID 948, cr_txg 59583, 132M, 2 
objects
Dataset zfsroot/userdata/worker152 [ZVOL], ID 924, cr_txg 59551, 928M, 2 
objects
Dataset zfsroot/userdata/worker125 [ZVOL], ID 932, cr_txg 59566, 997M, 2 
objects
Dataset zfsroot/userdata/worker158 [ZVOL], ID 916, cr_txg 59536, 498M, 2 
objects
Dataset zfsroot/userdata/worker214 [ZVOL], ID 908, cr_txg 59530, 736M, 2 
objects
Dataset zfsroot/userdata/worker160 [ZVOL], ID 900, cr_txg 59524, 774M, 2 
objects
Dataset zfsroot/userdata/worker184 [ZVOL], ID 892, cr_txg 59518, 609M, 2 
objects
Dataset zfsroot/userdata/worker235 [ZVOL], ID 1012, cr_txg 59663, 1.62G, 
2 objects
Dataset zfsroot/userdata/worker242 [ZVOL], ID 1021, cr_txg 59674, 96.1M, 
2 objects
Dataset zfsroot/userdata/worker248 [ZVOL], ID 1004, cr_txg 59660, 153M, 
2 objects
Dataset zfsroot/userdata/worker141 [ZVOL], ID 988, cr_txg 59631, 1014M, 
2 objects
Dataset zfsroot/userdata/worker136 [ZVOL], ID 996, cr_txg 59646, 995M, 2 
objects
Dataset zfsroot/userdata/worker207 [ZVOL], ID 980, cr_txg 59617, 577M, 2 
objects
Dataset zfsroot/userdata/worker179 [ZVOL], ID 972, cr_txg 59602, 801M, 2 
objects
Dataset zfsroot/userdata/worker197 [ZVOL], ID 964, cr_txg 59595, 383M, 2 
objects
Dataset zfsroot/userdata/worker173 [ZVOL], ID 956, cr_txg 59586, 1.26G, 
2 objects
Dataset zfsroot/userdata/worker190 [ZVOL], ID 1085, cr_txg 59757, 236M, 
2 objects
Dataset zfsroot/userdata/worker174 [ZVOL], ID 1077, cr_txg 59743, 2.11G, 
2 objects
Dataset zfsroot/userdata/worker200 [ZVOL], ID 1069, cr_txg 59732, 260M, 
2 objects
Dataset zfsroot/userdata/worker131 [ZVOL], ID 1053, cr_txg 59711, 792M, 
2 objects
Dataset zfsroot/userdata/worker146 [ZVOL], ID 1061, cr_txg 59725, 418M, 
2 objects
Dataset zfsroot/userdata/worker245 [ZVOL], ID 1037, cr_txg 59692, 208M, 
2 objects
Dataset zfsroot/userdata/worker232 [ZVOL], ID 1045, cr_txg 59695, 527M, 
2 objects
Dataset zfsroot/userdata/worker238 [ZVOL], ID 1029, cr_txg 59677, 1.94G, 
2 objects
Dataset zfsroot/userdata/worker167 [ZVOL], ID 1165, cr_txg 59823, 4.43G, 
2 objects
Dataset zfsroot/userdata/worker189 [ZVOL], ID 1157, cr_txg 59817, 326M, 
2 objects
Dataset zfsroot/userdata/worker183 [ZVOL], ID 1149, cr_txg 59811, 1.18G, 
2 objects
Dataset zfsroot/userdata/worker219 [ZVOL], ID 1141, cr_txg 59808, 12.0K, 
2 objects
Dataset zfsroot/userdata/worker213 [ZVOL], ID 1133, cr_txg 59802, 1.04G, 
2 objects
Dataset zfsroot/userdata/worker122 [ZVOL], ID 1117, cr_txg 59782, 1.05G, 
2 objects
Dataset zfsroot/userdata/worker155 [ZVOL], ID 1125, cr_txg 59790, 963M, 
2 objects
Dataset zfsroot/userdata/worker128 [ZVOL], ID 1109, cr_txg 59769, 1.67G, 
2 objects
Dataset zfsroot/userdata/worker256 [ZVOL], ID 1093, cr_txg 59763, 602K, 
2 objects
Dataset zfsroot/userdata/worker221 [ZVOL], ID 1101, cr_txg 59766, 12.0K, 
2 objects
Dataset zfsroot/userdata/worker126 [ZVOL], ID 666, cr_txg 59194, 781M, 2 
objects
Dataset zfsroot/userdata/worker151 [ZVOL], ID 674, cr_txg 59205, 435M, 2 
objects
Dataset zfsroot/userdata/worker252 [ZVOL], ID 650, cr_txg 59188, 127M, 2 
objects
Dataset zfsroot/userdata/worker225 [ZVOL], ID 658, cr_txg 59191, 12.0K, 
2 objects
Dataset zfsroot/userdata/worker187 [ZVOL], ID 642, cr_txg 59171, 2.55G, 
2 objects
Dataset zfsroot/userdata/worker169 [ZVOL], ID 634, cr_txg 59157, 359M, 2 
objects
Dataset zfsroot/userdata/worker163 [ZVOL], ID 626, cr_txg 59139, 2.30G, 
2 objects
Dataset zfsroot/userdata/worker217 [ZVOL], ID 618, cr_txg 59136, 12.0K, 
2 objects
Dataset zfsroot/userdata/worker135 [ZVOL], ID 731, cr_txg 59301, 1.36G, 
2 objects
Dataset zfsroot/userdata/worker142 [ZVOL], ID 739, cr_txg 59315, 468M, 2 
objects
Dataset zfsroot/userdata/worker148 [ZVOL], ID 723, cr_txg 59288, 1.21G, 
2 objects
Dataset zfsroot/userdata/worker241 [ZVOL], ID 707, cr_txg 59265, 758M, 2 
objects
Dataset zfsroot/userdata/worker236 [ZVOL], ID

Re: cannot destroy faulty zvol

2017-07-22 Thread Eugene M. Zheganin 

Hi,

On 22.07.2017 17:08, Eugene M. Zheganin wrote:


is this weird error "cannot destroy: already exists" related to the 
fact that the zvol is faulty ? Does it indicate that metadata is 
probably faulty too ? Anyway, is there a way to destroy this dataset ?
Follow-up: I sent a similar zvol of the thexactly same size into the 
faulty one, zpool errors are gone, still cannot destroy the zvol. Is 
this a zfs bug ?


Eugene.
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cannot destroy faulty zvol

2017-07-22 Thread Eugene M. Zheganin 

Hi,


I cannot destroy a zvol for a reason that I don't understand:


[root@san1:~]# zfs list -t all | grep worker182
zfsroot/userdata/worker182-bad1,38G  1,52T   708M  -
[root@san1:~]# zfs destroy -R zfsroot/userdata/worker182-bad
cannot destroy 'zfsroot/userdata/worker182-bad': dataset already exists
[root@san1:~]#


also noitice that this zvol is faulty:


  pool: zfsroot
 state: ONLINE
status: One or more devices has experienced an error resulting in data
corruption.  Applications may be affected.
action: Restore the file in question if possible.  Otherwise restore the
entire pool from backup.
   see: http://illumos.org/msg/ZFS-8000-8A
  scan: scrub in progress since Sat Jul 22 15:01:37 2017
18,7G scanned out of 130G at 75,0M/s, 0h25m to go
0 repaired, 14,43% done
config:

NAMESTATE READ WRITE CKSUM
zfsroot ONLINE   0 0 4
  mirror-0  ONLINE   0 0 8
gpt/zroot0  ONLINE   0 0 8
gpt/zroot1  ONLINE   0 0 8

errors: Permanent errors have been detected in the following files:

zfsroot/userdata/worker182-bad:<0x1>
<0xc7>:<0x1>


is this weird error "cannot destroy: already exists" related to the fact 
that the zvol is faulty ? Does it indicate that metadata is probably 
faulty too ? Anyway, is there a way to destroy this dataset ?



Thanks.

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