\u4e00\u3001XFS\u6587\u4ef6\u7cfb\u7edf\u7684\u5907\u4efd\u4e0e\u6062\u590d<\/strong><\/div>\n
XFS\u6587\u4ef6\u7cfb\u7edf\u63d0\u4f9b\u4e86\u6574\u4e2a\u5206\u533a\u5907\u4efd\u7684\u5de5\u5177xfsdump\u4f9b\u7528\u6237\u4f7f\u7528\uff0c\u7528\u6237\u53ef\u4ee5\u5728\u4e0d\u501f\u52a9\u7b2c\u4e09\u65b9\u8f6f\u4ef6\u7684\u60c5\u51b5\u4e0b\u5bf9XFS\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u6570\u636e\u5b9e\u65bd\u5907\u4efd\u3002<\/p>\n
\u521b\u5efaXFS\u5206\u533a\u53ca\u6d4b\u8bd5\u6587\u4ef6<\/strong><\/span><\/div>\n
[root@localhost ~]# ls \/dev\/sd*\r\n\/dev\/sda \/dev\/sda1 \/dev\/sda2 \/dev\/sdb\r\n[root@localhost ~]# fdisk \/dev\/sdb\r\nWelcome to fdisk (util-linux 2.23.2).\r\n\r\nChanges will remain in memory only, until you decide to write them.\r\nBe careful before using the write command.\r\n\r\n\r\nCommand (m for help): p\r\n\r\nDisk \/dev\/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors\r\nUnits = sectors of 1 * 512 = 512 bytes\r\nSector size (logical\/physical): 512 bytes \/ 512 bytes\r\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\r\nDisk label type: dos\r\nDisk identifier: 0x08a5199d\r\n\r\n Device Boot Start End Blocks Id System\r\n\r\nCommand (m for help): n\r\nPartition type:\r\n p primary (0 primary, 0 extended, 4 free)\r\n e extended\r\nSelect (default p): p\r\nFirst sector (2048-41943039, default 2048): \r\nUsing default value 2048\r\nLast sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039): +1G\r\nPartition 1 of type Linux and of size 1 GiB is set\r\n\r\nCommand (m for help): p\r\n\r\nDisk \/dev\/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors\r\nUnits = sectors of 1 * 512 = 512 bytes\r\nSector size (logical\/physical): 512 bytes \/ 512 bytes\r\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\r\nDisk label type: dos\r\nDisk identifier: 0x08a5199d\r\n\r\n Device Boot Start End Blocks Id System\r\n\/dev\/sdb1 2048 2099199 1048576 83 Linux\r\n\r\nCommand (m for help): w\r\nThe partition table has been altered!\r\n\r\nCalling ioctl() to re-read partition table.\r\nSyncing disks.\r\n[root@localhost ~]# partprobe\r\nWarning: Unable to open \/dev\/sr0 read-write (Read-only file system). \/dev\/sr0 has been opened read-only.\r\n[root@localhost ~]# ls \/dev\/sd*\r\n\/dev\/sda \/dev\/sda1 \/dev\/sda2 \/dev\/sdb \/dev\/sdb1\r\n[root@localhost ~]# mkfs.xfs -f \/dev\/sdb1\r\nmeta-data=\/dev\/sdb1 isize=512 agcount=4, agsize=65536 blks\r\n = sectsz=512 attr=2, projid32bit=1\r\n = crc=1 finobt=0, sparse=0\r\ndata = bsize=4096 blocks=262144, imaxpct=25\r\n = sunit=0 swidth=0 blks\r\nnaming =version 2 bsize=4096 ascii-ci=0 ftype=1\r\nlog =internal log bsize=4096 blocks=2560, version=2\r\n = sectsz=512 sunit=0 blks, lazy-count=1\r\nrealtime =none extsz=4096 blocks=0, rtextents=0\r\n[root@localhost ~]# blkid \/dev\/sdb1 \r\n\/dev\/sdb1: UUID=\"61a5e59d-92d3-458d-ac09-7d945469cda6\" TYPE=\"xfs\" \r\n[root@localhost ~]# mkdir \/file\r\n[root@localhost ~]# echo \"\/dev\/sdb1 \/file xfs defaults 0 0\" >> \/etc\/fstab \r\n[root@localhost ~]# mount -a\r\n[root@localhost ~]# df -h\r\nFilesystem Size Used Avail Use% Mounted on\r\n\/dev\/mapper\/rhel-root 17G 1.9G 16G 12% \/\r\ndevtmpfs 901M 0 901M 0% \/dev\r\ntmpfs 912M 0 912M 0% \/dev\/shm\r\ntmpfs 912M 8.7M 903M 1% \/run\r\ntmpfs 912M 0 912M 0% \/sys\/fs\/cgroup\r\n\/dev\/sr0 3.8G 3.8G 0 100% \/yum\r\n\/dev\/sda1 1014M 143M 872M 15% \/boot\r\ntmpfs 183M 0 183M 0% \/run\/user\/0\r\n\/dev\/sdb1 1014M 33M 982M 4% \/file\r\n[root@localhost ~]# cd \/file\/\r\n[root@localhost file]# ls\r\n[root@localhost file]# touch file{1..100}\r\n[root@localhost file]# ls\r\nfile1 file16 file23 file30 file38 file45 file52 file6 file67 file74 file81 file89 file96\r\nfile10 file17 file24 file31 file39 file46 file53 file60 file68 file75 file82 file9 file97\r\nfile100 file18 file25 file32 file4 file47 file54 file61 file69 file76 file83 file90 file98\r\nfile11 file19 file26 file33 file40 file48 file55 file62 file7 file77 file84 file91 file99\r\nfile12 file2 file27 file34 file41 file49 file56 file63 file70 file78 file85 file92\r\nfile13 file20 file28 file35 file42 file5 file57 file64 file71 file79 file86 file93\r\nfile14 file21 file29 file36 file43 file50 file58 file65 file72 file8 file87 file94\r\nfile15 file22 file3 file37 file44 file51 file59 file66 file73 file80 file88 file95\r\n<\/pre>\n
\u5907\u4efdXFS\u5206\u533a<\/strong><\/span><\/div>\n
[root@localhost file]# mkdir \/backup \r\n[root@localhost file]# yum install -y xfsdump\r\n[root@localhost file]# xfsdump -f \/backup\/file.bak \/file\r\n#\u5229\u7528xfsdump\u5907\u4efd\u6302\u8f7d\u70b9\/file\u5bf9\u5e94\u7684\u5206\u533a\r\nxfsdump: using file dump (drive_simple) strategy\r\nxfsdump: version 3.1.4 (dump format 3.0) - type ^C for status and control\r\n\r\n ============================= dump label dialog ==============================\r\n#\u8f93\u5165dump\u4f1a\u8bdd\u6807\u7b7e\r\nplease enter label for this dump session (timeout in 300 sec)\r\n -> file.bak\r\nsession label entered: \"file.bak\"\r\n\r\n --------------------------------- end dialog ---------------------------------\r\n\r\nxfsdump: level 0 dump of localhost.localdomain:\/file\r\nxfsdump: dump date: Thu Oct 31 22:16:02 2019\r\nxfsdump: session id: 02a1445f-5ff3-4518-ab2c-888d9e2a4c44\r\nxfsdump: session label: \"file.bak\"\r\nxfsdump: ino map phase 1: constructing initial dump list\r\nxfsdump: ino map phase 2: skipping (no pruning necessary)\r\nxfsdump: ino map phase 3: skipping (only one dump stream)\r\nxfsdump: ino map construction complete\r\nxfsdump: estimated dump size: 52800 bytes\r\n\r\n ============================= media label dialog =============================\r\n#\u8f93\u5165\u5a92\u4f53\u6807\u7b7e\r\nplease enter label for media in drive 0 (timeout in 300 sec)\r\n -> file\r\nmedia label entered: \"file\"\r\n\r\n --------------------------------- end dialog ---------------------------------\r\n\r\nxfsdump: creating dump session media file 0 (media 0, file 0)\r\nxfsdump: dumping ino map\r\nxfsdump: dumping directories\r\nxfsdump: dumping non-directory files\r\nxfsdump: ending media file\r\nxfsdump: media file size 86544 bytes\r\nxfsdump: dump size (non-dir files) : 0 bytes\r\nxfsdump: dump complete: 27 seconds elapsed\r\nxfsdump: Dump Summary:\r\nxfsdump: stream 0 \/backup\/file.bak OK (success)\r\nxfsdump: Dump Status: SUCCESS\r\n[root@localhost file]# ls \/backup\/\r\n#\u5df2\u7ecf\u6210\u529f\u521b\u5efa\u5907\u4efd\u6587\u4ef6\r\nfile.bak\r\n<\/pre>\n
\u6062\u590d\u8fc7\u7a0b<\/strong><\/span><\/div>\n
[root@localhost file]# ls\r\nfile1 file16 file23 file30 file38 file45 file52 file6 file67 file74 file81 file89 file96\r\nfile10 file17 file24 file31 file39 file46 file53 file60 file68 file75 file82 file9 file97\r\nfile100 file18 file25 file32 file4 file47 file54 file61 file69 file76 file83 file90 file98\r\nfile11 file19 file26 file33 file40 file48 file55 file62 file7 file77 file84 file91 file99\r\nfile12 file2 file27 file34 file41 file49 file56 file63 file70 file78 file85 file92\r\nfile13 file20 file28 file35 file42 file5 file57 file64 file71 file79 file86 file93\r\nfile14 file21 file29 file36 file43 file50 file58 file65 file72 file8 file87 file94\r\nfile15 file22 file3 file37 file44 file51 file59 file66 file73 file80 file88 file95\r\n[root@localhost file]# rm -rf *\r\n[root@localhost file]# ls\r\n[root@localhost file]# xfsrestore -f \/backup\/file.bak \/file\r\nxfsrestore: using file dump (drive_simple) strategy\r\nxfsrestore: version 3.1.4 (dump format 3.0) - type ^C for status and control\r\nxfsrestore: searching media for dump\r\nxfsrestore: examining media file 0\r\nxfsrestore: dump description: \r\nxfsrestore: hostname: localhost.localdomain\r\nxfsrestore: mount point: \/file\r\nxfsrestore: volume: \/dev\/sdb1\r\nxfsrestore: session time: Thu Oct 31 22:16:02 2019\r\nxfsrestore: level: 0\r\nxfsrestore: session label: \"file.bak\"\r\nxfsrestore: media label: \"file\"\r\nxfsrestore: file system id: 61a5e59d-92d3-458d-ac09-7d945469cda6\r\nxfsrestore: session id: 02a1445f-5ff3-4518-ab2c-888d9e2a4c44\r\nxfsrestore: media id: 2d1d9f33-dff3-4cfa-a2f6-bf65bd8f242b\r\nxfsrestore: using online session inventory\r\nxfsrestore: searching media for directory dump\r\nxfsrestore: reading directories\r\nxfsrestore: 1 directories and 100 entries processed\r\nxfsrestore: directory post-processing\r\nxfsrestore: restoring non-directory files\r\nxfsrestore: restore complete: 0 seconds elapsed\r\nxfsrestore: Restore Summary:\r\nxfsrestore: stream 0 \/backup\/file.bak OK (success)\r\nxfsrestore: Restore Status: SUCCESS\r\n[root@localhost file]# ls\r\n#\u5df2\u7ecf\u6210\u529f\u6062\u590d\u88ab\u5220\u9664\u7684\u6587\u4ef6\r\nfile1 file16 file23 file30 file38 file45 file52 file6 file67 file74 file81 file89 file96\r\nfile10 file17 file24 file31 file39 file46 file53 file60 file68 file75 file82 file9 file97\r\nfile100 file18 file25 file32 file4 file47 file54 file61 file69 file76 file83 file90 file98\r\nfile11 file19 file26 file33 file40 file48 file55 file62 file7 file77 file84 file91 file99\r\nfile12 file2 file27 file34 file41 file49 file56 file63 file70 file78 file85 file92\r\nfile13 file20 file28 file35 file42 file5 file57 file64 file71 file79 file86 file93\r\nfile14 file21 file29 file36 file43 file50 file58 file65 file72 file8 file87 file94\r\nfile15 file22 file3 file37 file44 file51 file59 file66 file73 file80 file88 file95\r\n<\/pre>\n
\u4e8c\u3001XFS\u6587\u4ef6\u7cfb\u7edf\u7684\u68c0\u67e5\u548c\u4fee\u590d<\/strong><\/div>\n
\u521b\u5efaXFS\u6d4b\u8bd5\u5206\u533a<\/strong><\/span><\/div>\n
[root@localhost file]# fdisk \/dev\/sdb\r\nWelcome to fdisk (util-linux 2.23.2).\r\n\r\nChanges will remain in memory only, until you decide to write them.\r\nBe careful before using the write command.\r\n\r\n\r\nCommand (m for help): p\r\n\r\nDisk \/dev\/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors\r\nUnits = sectors of 1 * 512 = 512 bytes\r\nSector size (logical\/physical): 512 bytes \/ 512 bytes\r\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\r\nDisk label type: dos\r\nDisk identifier: 0x08a5199d\r\n\r\n Device Boot Start End Blocks Id System\r\n\/dev\/sdb1 2048 2099199 1048576 83 Linux\r\n\r\nCommand (m for help): n\r\nPartition type:\r\n p primary (1 primary, 0 extended, 3 free)\r\n e extended\r\nSelect (default p): p\r\nPartition number (2-4, default 2): \r\nFirst sector (2099200-41943039, default 2099200): \r\nUsing default value 2099200\r\nLast sector, +sectors or +size{K,M,G} (2099200-41943039, default 41943039): +1G\r\nPartition 2 of type Linux and of size 1 GiB is set\r\n\r\nCommand (m for help): p\r\n\r\nDisk \/dev\/sdb: 21.5 GB, 21474836480 bytes, 41943040 sectors\r\nUnits = sectors of 1 * 512 = 512 bytes\r\nSector size (logical\/physical): 512 bytes \/ 512 bytes\r\nI\/O size (minimum\/optimal): 512 bytes \/ 512 bytes\r\nDisk label type: dos\r\nDisk identifier: 0x08a5199d\r\n\r\n Device Boot Start End Blocks Id System\r\n\/dev\/sdb1 2048 2099199 1048576 83 Linux\r\n\/dev\/sdb2 2099200 4196351 1048576 83 Linux\r\n\r\nCommand (m for help): w\r\nThe partition table has been altered!\r\n\r\nCalling ioctl() to re-read partition table.\r\n\r\nWARNING: Re-reading the partition table failed with error 16: Device or resource busy.\r\nThe kernel still uses the old table. The new table will be used at\r\nthe next reboot or after you run partprobe(8) or kpartx(8)\r\nSyncing disks.\r\n[root@localhost file]# partprobe\r\nWarning: Unable to open \/dev\/sr0 read-write (Read-only file system). \/dev\/sr0 has been opened read-only.\r\n[root@localhost file]# ls \/dev\/sd*\r\n\/dev\/sda \/dev\/sda1 \/dev\/sda2 \/dev\/sdb \/dev\/sdb1 \/dev\/sdb2\r\n[root@localhost file]# mkfs.xfs \/dev\/sdb2\r\nmeta-data=\/dev\/sdb2 isize=512 agcount=4, agsize=65536 blks\r\n = sectsz=512 attr=2, projid32bit=1\r\n = crc=1 finobt=0, sparse=0\r\ndata = bsize=4096 blocks=262144, imaxpct=25\r\n = sunit=0 swidth=0 blks\r\nnaming =version 2 bsize=4096 ascii-ci=0 ftype=1\r\nlog =internal log bsize=4096 blocks=2560, version=2\r\n = sectsz=512 sunit=0 blks, lazy-count=1\r\nrealtime =none extsz=4096 blocks=0, rtextents=0\r\n<\/pre>\n
\u68c0\u67e5XFS\u6587\u4ef6\u7cfb\u7edf\uff0c\u5982\u679c\u68c0\u67e5\u8fc7\u7a0b\u4e2d\u53d1\u73b0\u95ee\u9898\u5c06\u4f1a\u5217\u51fa<\/strong><\/span><\/div>\n
[root@localhost file]# xfs_repair -n \/dev\/sdb2\r\nPhase 1 - find and verify superblock...\r\nPhase 2 - using internal log\r\n - zero log...\r\n - scan filesystem freespace and inode maps...\r\n - found root inode chunk\r\nPhase 3 - for each AG...\r\n - scan (but don't clear) agi unlinked lists...\r\n - process known inodes and perform inode discovery...\r\n - agno = 0\r\n - agno = 1\r\n - agno = 2\r\n - agno = 3\r\n - process newly discovered inodes...\r\nPhase 4 - check for duplicate blocks...\r\n - setting up duplicate extent list...\r\n - check for inodes claiming duplicate blocks...\r\n - agno = 0\r\n - agno = 1\r\n - agno = 2\r\n - agno = 3\r\nNo modify flag set, skipping phase 5\r\nPhase 6 - check inode connectivity...\r\n - traversing filesystem ...\r\n - traversal finished ...\r\n - moving disconnected inodes to lost+found ...\r\nPhase 7 - verify link counts...\r\nNo modify flag set, skipping filesystem flush and exiting.\r\n<\/pre>\n
\u81ea\u52a8\u68c0\u67e5\u5e76\u4fee\u590dXFS\u6587\u4ef6\u7cfb\u7edf<\/strong><\/span><\/div>\n
[root@localhost file]# xfs_repair \/dev\/sdb2 \r\nPhase 1 - find and verify superblock...\r\nPhase 2 - using internal log\r\n - zero log...\r\n - scan filesystem freespace and inode maps...\r\n - found root inode chunk\r\nPhase 3 - for each AG...\r\n - scan and clear agi unlinked lists...\r\n - process known inodes and perform inode discovery...\r\n - agno = 0\r\n - agno = 1\r\n - agno = 2\r\n - agno = 3\r\n - process newly discovered inodes...\r\nPhase 4 - check for duplicate blocks...\r\n - setting up duplicate extent list...\r\n - check for inodes claiming duplicate blocks...\r\n - agno = 0\r\n - agno = 1\r\n - agno = 2\r\n - agno = 3\r\nPhase 5 - rebuild AG headers and trees...\r\n - reset superblock...\r\nPhase 6 - check inode connectivity...\r\n - resetting contents of realtime bitmap and summary inodes\r\n - traversing filesystem ...\r\n - traversal finished ...\r\n - moving disconnected inodes to lost+found ...\r\nPhase 7 - verify and correct link counts...\r\ndone\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
XFS\u6587\u4ef6\u7cfb\u7edf\u63d0\u4f9b\u4e86\u6574\u4e2a\u5206\u533a\u5907\u4efd\u7684\u5de5\u5177xfsdump\u4f9b\u7528\u6237\u4f7f\u7528\uff0c\u7528\u6237\u53ef\u4ee5\u5728\u4e0d\u501f\u52a9\u7b2c\u4e09\u65b9\u8f6f\u4ef6\u7684\u60c5\u51b5\u4e0b\u5bf9XFS\u6587\u4ef6 […]<\/p>\n","protected":false},"author":63,"featured_media":167129,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-167128","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thread"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/167128","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/63"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=167128"}],"version-history":[{"count":5,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/167128\/revisions"}],"predecessor-version":[{"id":167186,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/167128\/revisions\/167186"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/167129"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=167128"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=167128"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=167128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}