\u6570\u5e74\u524d\u306b\u30e9\u30ba\u30d1\u30a4\u306b\u642d\u8f09\u3057\u3066\u3044\u305f\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u30e9\u30ba\u30d1\u30a4\u767a\u58f2\u5f53\u521d\u306e\u9803\u3001\u4eca\u3068\u306a\u3063\u3066\u306f\u304b\u306a\u308a\u6614\u306e\u8a71\u306b\u306a\u308a\u307e\u3059\u3002\u30e9\u30ba\u30d1\u30a4\u306e\u4f7f\u3044\u65b9\u306f\u4eca\u3082\u5909\u308f\u3089\u306a\u3044\u3068\u601d\u3044\u307e\u3059\u304c\u3001SD \u3042\u308b\u3044\u306f micro SD \u306b\u30b7\u30b9\u30c6\u30e0\u3092\u5165\u308c\u3066\u7acb\u3061\u4e0a\u3052\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n
\u305d\u306e\u5f53\u6642\u3001\u305f\u307e\u305f\u307e\u624b\u6301\u3061\u306e SD \u985e\u304c\u4f4e\u54c1\u8cea\u3060\u3063\u305f\u306e\u304b\u3001\u30e9\u30ba\u30d1\u30a4\u3068\u306e\u76f8\u6027\u306e\u554f\u984c\u306a\u306e\u304b\u306f\u4eca\u3067\u3082\u7d0d\u5f97\u3067\u304d\u306a\u3044\u3067\u3044\u307e\u3059\u304c\u3001\u4f7f\u3044\u59cb\u3081\u3066\u3053\u308c\u304b\u3089\u3068\u601d\u3046\u6240\u307e\u3067\u4f5c\u696d\u3092\u9032\u3081\u305f\u9803\u306b\u5fc5\u305a\u30b7\u30b9\u30c6\u30e0\u304c\u98db\u3093\u3067\u3057\u307e\u3044\u3001\u64cd\u4f5c\u3084\u5b9a\u7fa9\u3057\u305f\u5185\u5bb9\u304c\u6210\u679c\u3068\u3057\u3066\u6b8b\u3089\u306a\u3044\u3053\u3068\u304c\u591a\u3005\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n
\u305d\u306e\u3088\u3046\u306a\u3053\u3068\u3082\u3042\u308a\u3001\u30e9\u30ba\u30d1\u30a4\u306e\u521d\u671f\u5229\u7528\u306e\u9803\u304b\u3089OS\u306e raspbian \u3092\u6700\u521d\u306eboot \u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u9664\u304d\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306e\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u306b\u79fb\u3057\u3066\u904b\u7528\u3057\u3066\u3044\u307e\u3057\u305f\u3002\u305d\u308c\u4ee5\u964d\u306f\u305a\u3063\u3068\u5b89\u5b9a\u3057\u3066\u30e9\u30ba\u30d1\u30a4\u3092\u5229\u7528\u3057\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u3042\u308b\u6642\uff11\u53f0\u306e\u30e9\u30ba\u30d1\u30a4\u304c\u4e0d\u5b89\u5b9a\u306b\u306a\u308a\u3001\u539f\u56e0\u304c\u30e9\u30ba\u30d1\u30a4\u306e\u30cf\u30fc\u30c9\u672c\u4f53\u304b\u3001\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u304b\u3001SD \u306e\u30d6\u30fc\u30c8\u306a\u306e\u304b\u3068\u7591\u3044\u3001\u591a\u5206\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u3060\u308d\u3046\u3068\u306e\u7d50\u8ad6\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n
\u5f53\u6642\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306e\u78ba\u8a8d\u65b9\u6cd5\u306b\u3001\u3069\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308b\u306e\u304b\u3001\u8abf\u3079\u305f\u3082\u306e\u306e\u6642\u9593\u3082\u306a\u304f\u300e\u4e0d\u826f\u300f\u3068\u5f35\u308a\u7d19\u3057\u3066\u6368\u3066\u305a\u306b\u6b8b\u3057\u3066\u304a\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n
\u305d\u306e\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u3092\u898b\u4ed8\u3051\u3066\u3001\u305d\u3046\u8a00\u3048\u3070\u4fdd\u7559\u3067\u653e\u7f6e\u3057\u3066\u3044\u305f\u306a\u3068\u601d\u3044\u51fa\u3057\u3066\u3001\u8abf\u3079\u3066\u307f\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n\n
$ sudo fdisk \/dev\/sdb\nfdisk (util-linux 2.31.1) \u3078\u3088\u3046\u3053\u305d\u3002\n\u3053\u3053\u3067\u8a2d\u5b9a\u3057\u305f\u5185\u5bb9\u306f\u3001\u66f8\u304d\u8fbc\u307f\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u307e\u3067\u30e1\u30e2\u30ea\u306e\u307f\u306b\u4fdd\u6301\u3055\u308c\u307e\u3059\u3002\n\u66f8\u304d\u8fbc\u307f\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u6ce8\u610f\u3057\u3066\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\n\u30b3\u30de\u30f3\u30c9 (m \u3067\u30d8\u30eb\u30d7): p\n\u30c7\u30a3\u30b9\u30af \/dev\/sdb: 931.5 GiB, 1000204886016 \u30d0\u30a4\u30c8, 1953525168 \u30bb\u30af\u30bf\n\u5358\u4f4d: \u30bb\u30af\u30bf (1 * 512 = 512 \u30d0\u30a4\u30c8)\n\u30bb\u30af\u30bf\u30b5\u30a4\u30ba (\u8ad6\u7406 \/ \u7269\u7406): 512 \u30d0\u30a4\u30c8 \/ 4096 \u30d0\u30a4\u30c8\nI\/O \u30b5\u30a4\u30ba (\u6700\u5c0f \/ \u63a8\u5968): 4096 \u30d0\u30a4\u30c8 \/ 33553920 \u30d0\u30a4\u30c8\n\u30c7\u30a3\u30b9\u30af\u30e9\u30d9\u30eb\u306e\u30bf\u30a4\u30d7: dos\n\u30c7\u30a3\u30b9\u30af\u8b58\u5225\u5b50: 0xab9fb81c\n\u30c7\u30d0\u30a4\u30b9 \u8d77\u52d5 \u958b\u59cb\u4f4d\u7f6e \u6700\u5f8c\u304b\u3089 \u30bb\u30af\u30bf \u30b5\u30a4\u30ba Id \u30bf\u30a4\u30d7\n\/dev\/sdb1 2048 2099199 2097152 1G b W95 FAT32\n\/dev\/sdb2 2099200 44042239 41943040 20G 83 Linux\n\/dev\/sdb3 44042240 48236543 4194304 2G 82 Linux \u30b9\u30ef\u30c3\u30d7 \/ Solaris\n\/dev\/sdb4 48236544 1953525167 1905288624 908.5G 5 \u62e1\u5f35\u9818\u57df\n\/dev\/sdb5 48238592 635441151 587202560 280G 83 Linux\n\/dev\/sdb6 635443200 1222645759 587202560 280G 83 Linux\n\/dev\/sdb7 1222647808 1953525167 730877360 348.5G 83 Linux\n\u30b3\u30de\u30f3\u30c9 (m \u3067\u30d8\u30eb\u30d7): q\n<\/pre>\n$ sudo blkid\n --\n \u9014\u4e2d\u7701\u7565\n --\n\/dev\/sdb1: UUID=\"7C91-A3DA\" TYPE=\"vfat\" PARTUUID=\"ab9fb81c-01\"\n\/dev\/sdb2: UUID=\"83670319-849c-459b-84aa-fe7f3f776145\" TYPE=\"ext4\" PARTUUID=\"ab9fb81c-02\"\n\/dev\/sdb3: UUID=\"c3a4d72a-7866-4ffe-a864-5a3f24fb889f\" TYPE=\"swap\" PARTUUID=\"ab9fb81c-03\"\n\/dev\/sdb5: LABEL=\"home\" UUID=\"35786e95-ea9a-4975-aa39-c10ba1d47e3f\" TYPE=\"ext4\" PARTUUID=\"ab9fb81c-05\"\n\/dev\/sdb6: LABEL=\"data\" UUID=\"217555fc-a5d3-4cd8-9702-06f1b5c77f6d\" TYPE=\"ext4\" PARTUUID=\"ab9fb81c-06\"\n\/dev\/sdb7: LABEL=\"bkup\" UUID=\"8aec4e2f-e576-4b73-9aa1-38b905c68dc1\" TYPE=\"ext4\" PARTUUID=\"ab9fb81c-07\"\n$ sudo fsck \/dev\/sdb1\nfsck from util-linux 2.31.1\nfsck.fat 4.1 (2017-01-24)\n\/dev\/sdb1: 0 files, 1\/261629 clusters\n$ sudo fsck \/dev\/sdb2\nfsck from util-linux 2.31.1\ne2fsck 1.44.1 (24-Mar-2018)\n\/dev\/sdb2: clean, 15\/1310720 files, 285254\/5242880 blocks\n$ sudo fsck \/dev\/sdb5\nfsck from util-linux 2.31.1\ne2fsck 1.44.1 (24-Mar-2018)\nhome: clean, 953\/18350080 files, 1202987\/73400320 blocks\n$ sudo fsck \/dev\/sdb6\nfsck from util-linux 2.31.1\ne2fsck 1.44.1 (24-Mar-2018)\ndata: clean, 703\/18350080 files, 1345817\/73400320 blocks\n$ sudo fsck \/dev\/sdb7\nfsck from util-linux 2.31.1\ne2fsck 1.44.1 (24-Mar-2018)\nbkup: clean, 11\/22847488 files, 1483745\/91359670 blocks\n<\/pre>\n\n\u524d\u8ff0\u306e\u3088\u3046\u306b\u3001\u4e00\u822c\u7684\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u7121\u3057\u3067 fsck \u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u3082\u4f55\u306e\u30a8\u30e9\u30fc\u3082\u8868\u793a\u3055\u308c\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u3092\u7a3c\u50cd\u3055\u305b\u308b\u3068\u30b7\u30b9\u30c6\u30e0\u30c0\u30a6\u30f3\u3092\u8d77\u3053\u3059\u307b\u3069\u306e\u4e0d\u5b89\u5b9a\u306a\u52d5\u304d\u3092\u3057\u307e\u3059\u3002<\/p>\n\n\n
\u6614\u306f\u3001\u8272\u3005\u306a\u7269\u304c\u624b\u4f5c\u308a\u306e\u3088\u3046\u3067\u3001\u4f4e\u30ec\u30d9\u30eb\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u8a71\u3082\u805e\u3044\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u6642\u4ee3\u306f\u5909\u308f\u308a\u3001\u73fe\u5728\u306f\u4e00\u822c\u5229\u7528\u8005\u304c\u5229\u7528\u3067\u304d\u308b\u30ec\u30d9\u30eb\u3067\u3082\u306a\u3044\u3088\u3046\u3067\u3059\u3002\u8abf\u3079\u308b\u3068\u30c7\u30a3\u30b9\u30af\u30c9\u30e9\u30a4\u30d6\u5168\u57df\u306b\u30b9\u30da\u30fc\u30b9\u3092\u66f8\u304d\u8fbc\u3080\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306f\u898b\u3064\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n
\u6614\u306e\u8a18\u4e8b\u306e\u4e2d\u306b\u306f\u3001\u4f7f\u3048\u308b\u3082\u306e\u304c\u30e1\u30fc\u30ab\u30fc\u3067\u7570\u306a\u3063\u3066\u3044\u305f\u3068\u304b\u3001\u30ac\u30fc\u30c9\u304c\u639b\u304b\u3089\u305a\u30b9\u30fc\u30d1\u30fc\u30d6\u30ed\u30c3\u30af\u307e\u3067\u6d88\u53bb\u3055\u308c\u3066\u3057\u307e\u3044\u5927\u554f\u984c\u306b\u306a\u3063\u305f\u3089\u3057\u3044\u305f\u8a18\u4e8b\u7b49\u3082\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n
\u306a\u304a\u3001Linux \u30b7\u30b9\u30c6\u30e0\u3067\u3001 \/dev\/sdb \u30c9\u30e9\u30a4\u30d6\u306b ‘\uff10’ \u3092\u5145\u586b\u3059\u308b\u30b3\u30de\u30f3\u30c9\u306f\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002<\/p>\n\n
# dd if=\/dev\/zero of=\/dev\/sdb bs=1M<\/pre>\n\n
\n\n\n\u30c7\u30a3\u30b9\u30af\u306e\u4fee\u5fa9\u7b49\u3092\u30ad\u30fc\u30ef\u30fc\u30c9\u3067\u691c\u7d22\u3059\u308b\u3068\u3001\u300eLinux\u3067\u30c7\u30a3\u30b9\u30af\u306e\u30a8\u30e9\u30fc\u3084\u4e0d\u826f\u30bb\u30af\u30bf\u306e\u30c1\u30a7\u30c3\u30af\u3068\u4fee\u6b63\u3092\u3059\u308b\u65b9\u6cd5\u300f<\/a>\u3092\u898b\u4ed8\u3051\u307e\u3057\u305f\u3002<\/p>\n\n\n
\u305d\u306e\u8a18\u4e8b\u3067\u306f\u3001 fdisk \u3048\u3075\u3067\u3043\u3059\u304f | hdparm \u3048\u3044\u3061\u3067\u3043\u30fc\u3071\u30fc\u3080 | badblocks \u3070\u3063\u3069\u3076\u308d\u3063\u304f\u3059 | e2fsck \u3044\u30fc\u3064\u30fc\u3048\u3075\u3048\u3059\u3057\u30fc\u3051\u30fc | fsck \u3048\u3075\u3048\u3059\u3057\u30fc\u3051\u30fc \u306b\u3064\u3044\u3066\u8a18\u8ff0\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n
\u79c1\u304c\u4f7f\u3063\u305f\u3053\u3068\u306e\u306a\u3044\u521d\u3081\u3066\u77e5\u308b\u3088\u3046\u306a\u30b3\u30de\u30f3\u30c9\u3082\u8aac\u660e\u3057\u3066\u304f\u308c\u3066\u3044\u307e\u3059\u3002 hdparm \u306f\u6614\u4f55\u304b\u306e\u8b1b\u7fd2\u4f1a\u3067\u805e\u3044\u305f\u3088\u3046\u306a\u6c17\u3082\u3057\u307e\u3059\u304c\u3001\u3059\u3067\u306b\u8a18\u61b6\u304b\u3089\u306f\u98db\u3093\u3067\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n
\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306e\u60c5\u5831\u3092\u53d6\u5f97<\/h4>\n\n\n
\u305d\u306e\u4e2d\u3067\u3001\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u306e\u30e2\u30c7\u30eb\u3092\u8868\u793a\u3059\u308b\u30b3\u30de\u30f3\u30c9\u3092\u898b\u4ed8\u3051\u307e\u3057\u305f\u304c\u3001\u8a66\u3057\u3066\u307f\u308b\u3068\u6b8b\u5ff5\u306a\u304c\u3089\u518d\u73fe\u3057\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u30b3\u30de\u30f3\u30c9\u304c\u5909\u308f\u3063\u305f\u306e\u304b\u3001\u30c7\u30a3\u30b9\u30af\u306e\u60c5\u5831\u306e\u6301\u305f\u305b\u65b9\u304c\u5909\u308f\u3063\u305f\u306e\u304b\u3001\u8a73\u7d30\u306f\u5206\u304b\u308a\u307e\u305b\u3093\u304c\u6642\u4ee3\u306e\u5909\u5316\u306a\u306e\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n\n
$ sudo hdparm -i \/dev\/sdb1 |fgrep Model\n Model=Hitachi HDS5C3020ALA632, FwRev=ML6OA5C0, SerialNo=ZZZZZZZZZZZZZZ<\/pre>\n\n\u524d\u8ff0\u304c\u8aac\u660e\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u3059\u304c\u3001\u5b9f\u969b\u306e\u7d50\u679c\u304c\u6b21\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n
$ sudo hdparm -i \/dev\/sdb |fgrep Model\n HDIO_GET_IDENTITY failed: Invalid argument<\/pre>\n\nhdparm \u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092 -I \u306b\u5909\u3048\u3066\u5b9f\u884c\u3059\u308b\u3068\u3001\u8272\u3005\u306a\u60c5\u5831\u304c\u8868\u793a\u3055\u308c\u308b\u306e\u3067\u3001\u4f55\u304b\u304c\u5909\u308f\u3063\u305f\u306e\u3067\u3057\u3087\u3046\u306d\u3002<\/p>\n\n
$ sudo hdparm -I \/dev\/sdb\n\/dev\/sdb:\nATA device, with non-removable media\n Model Number: ST1000LM024 HN-M101MBB\n Serial Number: S30EJ9GF304434\n Firmware Revision: 2BA30001\n Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0\nStandards:\n Used: unknown (minor revision code 0x0028)\n Supported: 8 7 6 5\n Likely used: 8\nConfiguration:\n Logical max current\n cylinders 16383 16383\n heads 16 16\n sectors\/track 63 63\n --\n CHS current addressable sectors: 16514064\n LBA user addressable sectors: 268435455\n LBA48 user addressable sectors: 1953525168\n Logical Sector size: 512 bytes\n Physical Sector size: 4096 bytes\n Logical Sector-0 offset: 0 bytes\n device size with M = 1024*1024: 953869 MBytes\n device size with M = 1000*1000: 1000204 MBytes (1000 GB)\n cache\/buffer size = 16384 KBytes\n Form Factor: 2.5 inch\n Nominal Media Rotation Rate: 5400\nCapabilities:\n LBA, IORDY(can be disabled)\n Queue depth: 32\n Standby timer values: spec'd by Standard, no device specific minimum\n R\/W multiple sector transfer: Max = 16 Current = ?\n Advanced power management level: disabled\n Recommended acoustic management value: 254, current value: 0\n DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6\n Cycle time: min=120ns recommended=120ns\n PIO: pio0 pio1 pio2 pio3 pio4\n Cycle time: no flow control=120ns IORDY flow control=120ns\nCommands\/features:\n Enabled Supported:\n * SMART feature set\n Security Mode feature set\n * Power Management feature set\n * Write cache\n * Look-ahead\n * Host Protected Area feature set\n * WRITE_BUFFER command\n * READ_BUFFER command\n * NOP cmd\n * DOWNLOAD_MICROCODE\n Advanced Power Management feature set\n Power-Up In Standby feature set\n * SET_FEATURES required to spinup after power up\n SET_MAX security extension\n Automatic Acoustic Management feature set\n * 48-bit Address feature set\n * Device Configuration Overlay feature set\n * Mandatory FLUSH_CACHE\n * FLUSH_CACHE_EXT\n * SMART error logging\n * SMART self-test\n * General Purpose Logging feature set\n * 64-bit World wide name\n * IDLE_IMMEDIATE with UNLOAD\n * WRITE_UNCORRECTABLE_EXT command\n * {READ,WRITE}_DMA_EXT_GPL commands\n * Segmented DOWNLOAD_MICROCODE\n * Gen1 signaling speed (1.5Gb\/s)\n * Gen2 signaling speed (3.0Gb\/s)\n * Gen3 signaling speed (6.0Gb\/s)\n * Native Command Queueing (NCQ)\n * Phy event counters\n * Idle-Unload when NCQ is active\n * NCQ priority information\n DMA Setup Auto-Activate optimization\n Device-initiated interface power management\n * Software settings preservation\n * SMART Command Transport (SCT) feature set\n * SCT Read\/Write Long (AC1), obsolete\n * SCT Write Same (AC2)\n * SCT Error Recovery Control (AC3)\n * SCT Features Control (AC4)\n * SCT Data Tables (AC5)\nSecurity:\n Master password revision code = 65534\n supported\n not enabled\n not locked\n not frozen\n not expired: security count\n supported: enhanced erase\n 194min for SECURITY ERASE UNIT. 194min for ENHANCED SECURITY ERASE UNIT.\nLogical Unit WWN Device Identifier: 50004cf20ca73d80\n NAA : 5\n IEEE OUI : 0004cf\n Unique ID : 20ca73d80\nChecksum: correct<\/pre>\n\n\u8aac\u660e\u3055\u308c\u3066\u3044\u305f hdparm \u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5909\u66f4\u3057\u305f\u7d50\u679c\u304c\u6b21\u3067\u3059\u3002<\/p>\n\n
$ sudo hdparm -I \/dev\/sdb |fgrep Model\n Model Number: ST1000LM024 HN-M101MBB<\/pre>\n\n\u4e0d\u826f\u30bb\u30af\u30bf\u3092\u8abf\u3079\u308b\u65b9\u6cd5\u3082\u8aac\u660e\u3055\u308c\u3066\u3044\u3066\u3001\u305b\u3063\u304b\u304f\u306a\u306e\u3067\u305d\u308c\u3092\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u3002\u4e0d\u826f\u7b87\u6240\u304c\u591a\u304f\u3066\u6642\u9593\u304c\u304b\u304b\u3063\u305f\u306e\u304b\u30011TB 2.5\u30a4\u30f3\u30c1\u30c7\u30a3\u30b9\u30af\u306e\u5b9f\u884c\u306b\u4e38\uff11\u65e5\u4ee5\u4e0a\u304b\u304b\u308a\u307e\u3057\u305f\u3002212\u7b87\u6240\u306e\u4e0d\u826f\u30d6\u30ed\u30c3\u30af\u3067\u3057\u305f\u3002<\/p>\n\n
$ sudo badblocks -v -s \/dev\/sdb | tee \/tmp\/badblocks.txt\nChecking blocks 0 to 976762583\nChecking for bad blocks (read-only test): 6154392 done, 6:03 elapsed. (0\/0\/0 errors)\n6154393 done, 6:37 elapsed. (1\/0\/0 errors)\n6154394 done, 7:12 elapsed. (2\/0\/0 errors)\n6154395 done, 7:45 elapsed. (3\/0\/0 errors)\n6250116 done, 8:59 elapsed. (4\/0\/0 errors)\n6250117 done, 9:34 elapsed. (5\/0\/0 errors)\n6250118 done, 10:08 elapsed. (6\/0\/0 errors)\n --\n \u9014\u4e2d\u7701\u7565\n --\n329269885one, 6:23:07 elapsed. (205\/0\/0 errors)\n329269886one, 6:23:42 elapsed. (206\/0\/0 errors)\n329269887one, 6:24:17 elapsed. (207\/0\/0 errors)\n329370036one, 6:25:04 elapsed. (208\/0\/0 errors)\n329370037one, 6:25:38 elapsed. (209\/0\/0 errors)\n329370038one, 6:26:12 elapsed. (210\/0\/0 errors)\n329370039one, 6:26:46 elapsed. (211\/0\/0 errors)\ndone\nPass completed, 212 bad blocks found. (212\/0\/0 errors)\n<\/pre>\n\n\u524d\u8ff0\u306e\u65b9\u6cd5\u3067\u53ce\u96c6\u3057\u305f\u60c5\u5831\u3092\u5229\u7528\u3057\u3066\u3001\u4e0d\u826f\u30bb\u30af\u30bf\u3092\u30de\u30fc\u30af\u3059\u308b\u3068\u306e\u3053\u3068\u8a66\u3057\u3066\u307f\u307e\u3059\u3002\u305f\u3060\u826f\u304f\u7406\u89e3\u3067\u304d\u3066\u3044\u306a\u3044\u306e\u306f\u3001\u8aac\u660e\u3055\u308c\u3066\u3044\u308b\u4f8b\u3067\u306f\u3001\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u5bfe\u8c61\u306b\u64cd\u4f5c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n
\u3067\u3082\u30c7\u30a3\u30b9\u30af\u30c9\u30e9\u30a4\u30d6\u306b\u5bfe\u3057\u3066\u4e0d\u826f\u30bb\u30af\u30bf\u3092\u9664\u304f\u5fc5\u8981\u304c\u3042\u308b\u3088\u3046\u306b\u3082\u601d\u3046\u306e\u3067\u3059\u304c\u2026\u3001\u305d\u308c\u3068\u30b9\u30fc\u30d1\u30fc\u30d6\u30ed\u30c3\u30af\u3068\u547c\u3070\u308c\u308b\u9818\u57df\u306f\u3001\u5404\u30d5\u30a1\u30a4\u30eb\u306e\u4e2d\u306b\u4f5c\u3089\u308c\u308b\u3082\u306e\u3067\u3057\u3087\u3046\u304b\u3002
\u3060\u3068\u3059\u308b\u3068\u30c7\u30a3\u30b9\u30af\u30c9\u30e9\u30a4\u30d6\u5168\u4f53\u306b\u64cd\u4f5c\u3059\u308b\u3053\u3068\u81ea\u4f53\u304c\u9593\u9055\u3044\u306a\u306e\u304b\u3068\u3082\u601d\u3044\u307e\u3059\u3002\u77e5\u8b58\u4e0d\u8db3\u304b\u3089\u91c8\u7136\u3068\u3057\u307e\u305b\u3093\u304c\u3001\u305d\u306e\u51fa\u529b\u304b\u3089\u6b21\u306e\u7d50\u679c\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n$ sudo e2fsck -l \/tmp\/badblocks.txt \/dev\/sdb\ne2fsck 1.44.1 (24-Mar-2018)\next2fs_open2: Bad magic number in super-block\ne2fsck: Superblock invalid, trying backup blocks...\ne2fsck: Bad magic number in super-block while trying to open \/dev\/sdb\nThe superblock could not be read or does not describe a valid ext2\/ext3\/ext4\n\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0. If the device is valid and it really contains an ext2\/ext3\/ext4\n\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0 (and not swap or ufs or something else), then the superblock\nis corrupt, and you might try running e2fsck with an alternate superblock:\n e2fsck -b 8193\n or\n e2fsck -b 32768\nFound a dos partition table in \/dev\/sdb\n<\/pre>\n\n\u30c7\u30a3\u30b9\u30af\u30c9\u30e9\u30a4\u30d6\u306b\u5bfe\u3057\u3066\u306e\u64cd\u4f5c\u3067\u3059\u304c\u3001\u305d\u3082\u305d\u3082 e2fsck \u81ea\u4f53\u304c\u3001ext2 ext3 \u7b49\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u5bfe\u3059\u308b\u30c1\u30a7\u30c3\u30af\u3084\u4fee\u5fa9\u306e\u30b3\u30de\u30f3\u30c9\u306a\u306e\u3067\u3001\u79c1\u306e\u64cd\u4f5c\u305d\u306e\u3082\u306e\u304c\u8aa4\u308a\u306a\u306e\u3067\u3057\u3087\u3046\u306d\u3002<\/p>\n\n
$ sudo e2fsck -b 32768 \/dev\/sdb\ne2fsck 1.44.1 (24-Mar-2018)\ne2fsck: Bad magic number in super-block while trying to open \/dev\/sdb\nThe superblock could not be read or does not describe a valid ext2\/ext3\/ext4\n\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0. If the device is valid and it really contains an ext2\/ext3\/ext4\n\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0 (and not swap or ufs or something else), then the superblock\nis corrupt, and you might try running e2fsck with an alternate superblock:\n e2fsck -b 8193\n or\n e2fsck -b 32768\nFound a dos partition table in \/dev\/sdb\n<\/pre>\n\n\u540c\u69d8\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u7e70\u308a\u8fd4\u3055\u308c\u308b\u3060\u3051\u3067\u3057\u305f\u3002\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5c11\u3057\u5909\u3048\u305f\u308a\u3057\u306a\u304c\u3089\u8a66\u3057\u307e\u3057\u305f\u304c\u3001\u540c\u3058\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u51fa\u3055\u308c\u308b\u3060\u3051\u3067\u3057\u305f\u3002<\/p>\n\n\n
\u305d\u3053\u3067\u3001\u30c7\u30a3\u30b9\u30af\u30c9\u30e9\u30a4\u30d6\u306e\u5168\u57df\u306b ‘\uff10’ \u3092\u66f8\u304d\u8fbc\u3093\u3067\u307f\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002\u6642\u9593\u304c\u639b\u304b\u308b\u306e\u306f\u5f53\u7136\u3068\u3057\u3066\u3082\u60f3\u50cf\u3057\u3066\u3044\u305f\u3088\u308a\u306f\u65e9\u304f\u5b8c\u4e86\u3057\u307e\u3057\u305f\u3002<\/p>\n\n
$ sudo dd if=\/dev\/zero of=\/dev\/sdb bs=1M\ndd: '\/dev\/sdb' \u306e\u66f8\u304d\u8fbc\u307f\u30a8\u30e9\u30fc: \u30c7\u30d0\u30a4\u30b9\u306b\u7a7a\u304d\u9818\u57df\u304c\u3042\u308a\u307e\u305b\u3093\n953870+0 \u30ec\u30b3\u30fc\u30c9\u5165\u529b\n953869+0 \u30ec\u30b3\u30fc\u30c9\u51fa\u529b\n1000204886016 bytes (1.0 TB, 932 GiB) copied, 32963.1 s, 30.3 MB\/s\n<\/pre>\n\n\u5f53\u7136\u3067\u3059\u304c\u3001\u5b9a\u7fa9\u3057\u3066\u3042\u3063\u305f\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u306e\u60c5\u5831\u306f\u6d88\u53bb\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n
$ sudo fdisk \/dev\/sdb\nfdisk (util-linux 2.31.1) \u3078\u3088\u3046\u3053\u305d\u3002\n\u3053\u3053\u3067\u8a2d\u5b9a\u3057\u305f\u5185\u5bb9\u306f\u3001\u66f8\u304d\u8fbc\u307f\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u307e\u3067\u30e1\u30e2\u30ea\u306e\u307f\u306b\u4fdd\u6301\u3055\u308c\u307e\u3059\u3002\n\u66f8\u304d\u8fbc\u307f\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u6ce8\u610f\u3057\u3066\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\n\u30c7\u30d0\u30a4\u30b9\u306b\u306f\u8a8d\u8b58\u53ef\u80fd\u306a\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u60c5\u5831\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u305b\u3093\u3002\n\u65b0\u3057\u3044 DOS \u30c7\u30a3\u30b9\u30af\u30e9\u30d9\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002\u8b58\u5225\u5b50\u306f 0x53cc047d \u3067\u3059\u3002\n\u30b3\u30de\u30f3\u30c9 (m \u3067\u30d8\u30eb\u30d7): p\n\u30c7\u30a3\u30b9\u30af \/dev\/sdb: 931.5 GiB, 1000204886016 \u30d0\u30a4\u30c8, 1953525168 \u30bb\u30af\u30bf\n\u5358\u4f4d: \u30bb\u30af\u30bf (1 * 512 = 512 \u30d0\u30a4\u30c8)\n\u30bb\u30af\u30bf\u30b5\u30a4\u30ba (\u8ad6\u7406 \/ \u7269\u7406): 512 \u30d0\u30a4\u30c8 \/ 4096 \u30d0\u30a4\u30c8\nI\/O \u30b5\u30a4\u30ba (\u6700\u5c0f \/ \u63a8\u5968): 4096 \u30d0\u30a4\u30c8 \/ 33553920 \u30d0\u30a4\u30c8\n\u30c7\u30a3\u30b9\u30af\u30e9\u30d9\u30eb\u306e\u30bf\u30a4\u30d7: dos\n\u30c7\u30a3\u30b9\u30af\u8b58\u5225\u5b50: 0x53cc047d\n\u30b3\u30de\u30f3\u30c9 (m \u3067\u30d8\u30eb\u30d7): q\n<\/pre>\n\n\u6b21\u306b\u3001\u4e0d\u826f\u30bb\u30af\u30bf\u3092\u518d\u3073\u8abf\u3079\u308b\u3068\u3001\u5b8c\u4e86\u3059\u308b\u307e\u3067\u306e\u6642\u9593\u3082\u77ed\u304f\u3001\u30a8\u30e9\u30fc\u3057\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\uff11\u3064\u3082\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u5b9f\u884c\u6642\u9593\u304c\u77ed\u3044\u306e\u306f\u3001\u30ea\u30c8\u30e9\u30a4\u3067\u306e\u7e70\u308a\u8fd4\u3057\u304c\u7121\u304f\u306a\u3063\u3066\u306e\u77ed\u7e2e\u304b\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n\n
$ sudo badblocks -v -s \/dev\/sdb | tee \/tmp\/badblocks.txt\nChecking blocks 0 to 976762583\nChecking for bad blocks (read-only test): done\nPass completed, 0 bad blocks found. (0\/0\/0 errors)\n<\/pre>\n\n\u3053\u308c\u3067\u3001\u8272\u3005\u306a\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3057\u3066\u307e\u3068\u3082\u306b\u5229\u7528\u3067\u304d\u308b\u306e\u304b\u306f\u4e0d\u660e\u3067\u3059\u304c\u3001\u3082\u3046\u5c11\u3057\u691c\u8a3c\u3057\u3066\u307f\u305f\u3044\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n
\n\n\nbadblocks \u306e\u4fee\u5fa9\u8aac\u660e\u30b5\u30a4\u30c8<\/h4>\n\n\n
\u5225\u306a\u60c5\u5831\u3092\u691c\u7d22\u3057\u3066\u3044\u308b\u3068\u3001badblocks<\/a> \u306e\u4fee\u5fa9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u3066\u3044\u308b\u30b5\u30a4\u30c8\u3092\u898b\u4ed8\u3051\u307e\u3057\u305f\u3002<\/p>\n\n\n
\u3053\u3053\u306e\u8aac\u660e\u3092\u898b\u308b\u3068 mkfs \u3067\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\u6642\u3084\u3001 fsck \u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u6642\u306b\u3001badblocks \u3067\u53ce\u96c6\u3057\u305f\u4e0d\u826f\u30bb\u30af\u30bf\u306e\u60c5\u5831\u3092\u9069\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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