备份XFS分区
[root@localhost file]# mkdir /backup[root@localhost file]# yum install -y xfsdump[root@localhost file]# xfsdump -f /backup/file.bak /file#利用xfsdump备份挂载点/file对应的分区xfsdump: using file dump (drive_simple) strategyxfsdump: version 3.1.4 (dump format 3.0) - type ^C for status and control ============================= dump label dialog ==============================#输入dump会话标签please enter label for this dump session (timeout in 300 sec) -> file.baksession label entered: "file.bak" --------------------------------- end dialog ---------------------------------xfsdump: level 0 dump of localhost.localdomain:/filexfsdump: dump date: Thu Oct 31 22:16:02 2019xfsdump: session id: 02a1445f-5ff3-4518-ab2c-888d9e2a4c44xfsdump: session label: "file.bak"xfsdump: ino map phase 1: constructing initial dump listxfsdump: ino map phase 2: skipping (no pruning necessary)xfsdump: ino map phase 3: skipping (only one dump stream)xfsdump: ino map construction completexfsdump: estimated dump size: 52800 bytes ============================= media label dialog =============================#输入媒体标签please enter label for media in drive 0 (timeout in 300 sec) -> filemedia label entered: "file" --------------------------------- end dialog ---------------------------------xfsdump: creating dump session media file 0 (media 0, file 0)xfsdump: dumping ino mapxfsdump: dumping directoriesxfsdump: dumping non-directory filesxfsdump: ending media filexfsdump: media file size 86544 bytesxfsdump: dump size (non-dir files) : 0 bytesxfsdump: dump complete: 27 seconds elapsedxfsdump: Dump Summary:xfsdump:stream 0 /backup/file.bak OK (success)xfsdump: Dump Status: SUCCESS[root@localhost file]# ls /backup/#已经成功创建备份文件file.bak恢复过程
[root@localhost file]# lsfile1file16file23file30file38file45file52file6file67file74file81file89file96file10file17file24file31file39file46file53file60file68file75file82file9file97file100file18file25file32file4file47file54file61file69file76file83file90file98file11file19file26file33file40file48file55file62file7file77file84file91file99file12file2file27file34file41file49file56file63file70file78file85file92file13file20file28file35file42file5file57file64file71file79file86file93file14file21file29file36file43file50file58file65file72file8file87file94file15file22file3file37file44file51file59file66file73file80file88file95[root@localhost file]# rm -rf *[root@localhost file]# ls[root@localhost file]# xfsrestore -f /backup/file.bak /filexfsrestore: using file dump (drive_simple) strategyxfsrestore: version 3.1.4 (dump format 3.0) - type ^C for status and controlxfsrestore: searching media for dumpxfsrestore: examining media file 0xfsrestore: dump description: xfsrestore: hostname: localhost.localdomainxfsrestore: mount point: /filexfsrestore: volume: /dev/sdb1xfsrestore: session time: Thu Oct 31 22:16:02 2019xfsrestore: level: 0xfsrestore: session label: "file.bak"xfsrestore: media label: "file"xfsrestore: file system id: 61a5e59d-92d3-458d-ac09-7d945469cda6xfsrestore: session id: 02a1445f-5ff3-4518-ab2c-888d9e2a4c44xfsrestore: media id: 2d1d9f33-dff3-4cfa-a2f6-bf65bd8f242bxfsrestore: using online session inventoryxfsrestore: searching media for directory dumpxfsrestore: reading directoriesxfsrestore: 1 directories and 100 entries processedxfsrestore: directory post-processingxfsrestore: restoring non-directory filesxfsrestore: restore complete: 0 seconds elapsedxfsrestore: Restore Summary:xfsrestore:stream 0 /backup/file.bak OK (success)xfsrestore: Restore Status: SUCCESS[root@localhost file]# ls#已经成功恢复被删除的文件file1file16file23file30file38file45file52file6file67file74file81file89file96file10file17file24file31file39file46file53file60file68file75file82file9file97file100file18file25file32file4file47file54file61file69file76file83file90file98file11file19file26file33file40file48file55file62file7file77file84file91file99file12file2file27file34file41file49file56file63file70file78file85file92file13file20file28file35file42file5file57file64file71file79file86file93file14file21file29file36file43file50file58file65file72file8file87file94file15file22file3file37file44file51file59file66file73file80file88file95