磁盘故障后的ZFS :大部分数据似乎完好无损，但如何提取？ |
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盘出故障后我有个兹普尔。尝试导入它(甚至zpool import -F -T 12855264 -R /mnt -f rpool)会产生错误 Dec 4 12:56:54 freebsd kernel: Solaris: WARNING: can't open objset 1035, error 5 Dec 4 12:56:54 freebsd ZFS[10155]: pool I/O failure, zpool=rpool error=97 Dec 4 12:56:54 freebsd ZFS[10159]: pool I/O failure, zpool=rpool error=97 Dec 4 12:56:54 freebsd ZFS[10163]: failed to load zpool rpoolzdb显示了一些数据。 Dataset mos [META], ID 0, cr_txg 4, 1.02G, 304 objects Dataset rpool/samba [ZPL], ID 100, cr_txg 135431, 276K, 9 objects Dataset rpool/ROOT/pve-1 [ZPL], ID 515, cr_txg 10, 4.85G, 74685 objects Dataset rpool/ROOT [ZPL], ID 259, cr_txg 8, 96K, 7 objects Dataset rpool/secure/vm-103-state-good [ZVOL], ID 661, cr_txg 2925304, 2.94G, 2 objects Dataset rpool/secure/vm-101-disk-1 [ZVOL], ID 1441, cr_txg 1445964, 188G, 2 objects Dataset rpool/secure/vm-104-disk-0@good [ZVOL], ID 1285, cr_txg 2925290, 83.1G, 2 objects Dataset rpool/secure/vm-104-disk-0 [ZVOL], ID 413, cr_txg 222940, 84.7G, 2 objects Dataset rpool/secure/vm-104-state-good [ZVOL], ID 173, cr_txg 2925283, 438M, 2 objects Dataset rpool/secure/subvol-105-disk-0@good [ZPL], ID 521, cr_txg 2925300, 1.36G, 36077 objects failed to hold dataset 'rpool/secure/subvol-105-disk-0': Input/output error Dataset rpool/secure/vm-101-disk-2 [ZVOL], ID 942, cr_txg 1445966, 114G, 2 objects Dataset rpool/secure/vm-103-disk-0@good [ZVOL], ID 1027, cr_txg 2925319, 18.1G, 2 objects Dataset rpool/secure/vm-103-disk-0 [ZVOL], ID 431, cr_txg 916036, 59.6G, 2 objects Dataset rpool/secure/vm-101-disk-0 [ZVOL], ID 448, cr_txg 1445962, 160K, 2 objects Dataset rpool/secure/vm-107-disk-0 [ZVOL], ID 285, cr_txg 219462, 16.9G, 2 objects Dataset rpool/secure/vm-101-disk-3 [ZVOL], ID 654, cr_txg 2329396, 83.1G, 2 objects Dataset rpool/secure [ZPL], ID 145, cr_txg 90, 200K, 7 objects Dataset rpool/data/vm-100-state-good [ZVOL], ID 394, cr_txg 1864406, 114M, 2 objects Dataset rpool/data/vm-106-disk-0@good [ZVOL], ID 1287, cr_txg 3889962, 3.97G, 2 objects Dataset rpool/data/vm-106-disk-0 [ZVOL], ID 781, cr_txg 1890481, 27.5G, 2 objects Dataset rpool/data/vm-100-disk-0@good [ZVOL], ID 518, cr_txg 1864412, 88.5M, 2 objects Dataset rpool/data/vm-100-disk-0 [ZVOL], ID 266, cr_txg 36631, 88.6M, 2 objects Dataset rpool/data/vm-106-state-good [ZVOL], ID 668, cr_txg 3889956, 358M, 2 objects Dataset rpool/data [ZPL], ID 387, cr_txg 9, 96K, 6 objects Dataset rpool [ZPL], ID 54, cr_txg 1, 10.3G, 26 objects MOS object 403 (bpobj) leaked MOS object 522 (DSL deadlist map) leaked MOS object 1032 (zap) leaked MOS object 1033 (DSL props) leaked MOS object 1034 (DSL directory child map) leaked MOS object 1035 (zap) leaked MOS object 1036 (DSL dataset snap map) leaked MOS object 1038 (zap) leaked Verified large_blocks feature refcount of 0 is correct Verified large_dnode feature refcount of 0 is correct Verified sha512 feature refcount of 0 is correct Verified skein feature refcount of 0 is correct userobj_accounting feature refcount mismatch: 7 consumers != 8 refcount encryption feature refcount mismatch: 14 consumers != 15 refcount project_quota feature refcount mismatch: 7 consumers != 8 refcount在我看来只有一个数据集被破坏了。 所以我有两个问题： dd读取所有磁盘，是什么导致I/O失败？如何提取完整的数据？有些数据集是加密的，所以仅仅读取块是不够的， |
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