\u7cfb\u7edf\u73af\u5883<\/strong><\/div>\n
Centos8<\/p>\n
\u5b89\u88c5VDO<\/strong><\/div>\n
\u4e0b\u9762\u547d\u4ee4\u5b89\u88c5vdo\u548c\u76f8\u5173\u4f9d\u8d56\uff0c\u5b89\u88c5\u5b8c\u6210\u4e4b\u540e\u91cd\u542f\u7cfb\u7edf\uff1a<\/p>\n
\r\n[root@localhost ~]# yum -y install vdo\r\n[root@localhost ~]# reboot\r\n<\/pre>\n
$\"\"$ <\/p>\n
\u521b\u5efa\u4e00\u4e2aVDO\u8bbe\u5907<\/strong><\/div>\n
\u786e\u4fdd\u6709\u4e00\u4e2a\u7a7a\u4f59\u78c1\u76d8\u6216\u5206\u533a\u53ef\u4f9bVDO\u4f7f\u7528\u3002\u5c3d\u7ba1\u53ef\u4ee5\u5728LVM\u903b\u8f91\u5377\u4e0a\u9762\u521b\u5efaVDO\u5377\uff0c\u4f46\u662f\u91cd\u65b0\u5f15\u5bfc\u7cfb\u7edf\u65f6\u4f1a\u51fa\u73b0\u5f15\u5bfc\u987a\u5e8f\u95ee\u9898\u3002\u6240\u4ee5\u518d\u88f8\u76d8\u4e0a\u9762\u521b\u5efavdo\u5377\u4e4b\u540e\u5728\u5b83\u4e4b\u4e0a\u521b\u5efaLVM\u903b\u8f91\u5377\u3002
\n $\"\"$
\n\u4e0b\u9762\u4f7f\u7528\u4e00\u575720GB\u7684\u78c1\u76d8\uff0c\/dev\/sda\u505avdo\u5377
\n\u4e0b\u9762\u521b\u5efavdo\u5377\uff1a<\/p>\n
\r\n[root@localhost ~]# vdo create --name=vdolvm --device \/dev\/sda --vdoLogicalSize 60G --writePolicy async \r\nCreating VDO vdolvm\r\n The VDO volume can address 16 GB in 8 data slabs, each 2 GB.\r\n It can grow to address at most 16 TB of physical storage in 8192 slabs.\r\n If a larger maximum size might be needed, use bigger slabs.\r\nStarting VDO vdolvm\r\nStarting compression on VDO vdolvm\r\nVDO instance 0 volume is ready at \/dev\/mapper\/vdolvm\r\n<\/pre>\n
$\"\"$
\n\u4e0b\u9762\u5206\u89e3\u4e00\u4e0b\u547d\u4ee4\uff0c\u770b\u770b\u6240\u4f7f\u7528\u7684\u9009\u9879\uff1a<\/p>\n
\n
--device - \u6307\u5b9a\u5728\u54ea\u4e2a\u786c\u76d8\u4e0a\u521b\u5efavdo\u5377<\/li>\n
--vdoLogicalSize - \u8fd9\u91cc\u6211\u4eec\u6307\u5b9a\u4e86\u5bb9\u91cf\u5927\u5c0f\u4e3a60G\uff0c\u6bd4\u6211\u4eec\u5b9e\u9645\u78c1\u76d820G\u5927\u4e86\u8bb8\u591a\u3002\u5047\u8bbe\u6211\u4eec\u5c06\u4ece\u91cd\u590d\u6570\u636e\u5220\u9664\u4e2d\u81f3\u5c11\u5f97\u52303:1\u7684\u51cf\u5c11\uff0c\u5bf9\u4e8e\u5927\u591a\u6570\u7684\u6570\u636e\uff0c\u8fd9\u662f\u76f8\u5f53\u4fdd\u5b88\u7684\uff0c\u4f46\u5982\u679c\u4f60\u7684\u6570\u636e\u6ca1\u6709\u5f88\u591a\u91cd\u590d\u7684\uff0c\u90a3\u4e48\u6bd4\u7387\u5e94\u8be5\u662f\u4e0d\u540c\u7684\u3002\u65e5\u5fd7\u6587\u4ef6\u548c\u5176\u4ed6\u7eaf\u6587\u672c\u6587\u4ef6\u901a\u5e38\u53ef\u4ee5\u5f88\u597d\u5730\u8fdb\u884c\u91cd\u590d\u6570\u636e\u5220\u9664\uff0c\u53ef\u80fd\u4f1a\u5f97\u523010:1\u751a\u81f3\u66f4\u9ad8\u7684\u91cd\u590d\u6570\u636e\u5220\u9664\u7387\u3002\u4f46\u662f\u4e8c\u8fdb\u5236\u6587\u4ef6\uff0c\u5982\u89c6\u9891\u3001\u97f3\u9891\u6216\u538b\u7f29\u5305\uff0c\u5c06\u8fdc\u8fdc\u4f4e\u4e8e3:1\uff0c\u751a\u81f3\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b1:1\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4e0d\u5efa\u8bae\u4f7f\u7528vdo\u5377\u3002<\/li>\n
--writePolicy - vdo\u6709\u4e09\u79cd\u5199\u7b56\u7565\uff1async:<\/code>\u53ea\u6709\u5728\u6570\u636e\u5199\u5165\u7269\u7406\u8bbe\u5907\u540e\uff0c\u624d\u4f1a\u786e\u8ba4\u5bf9VDO\u5377\u7684\u5199\u5165\u3002async:<\/code>\u5728\u6570\u636e\u5199\u5165\u7f13\u5b58\u540e\u88ab\u786e\u8ba4\u3002\u5982\u679c\u5728\u8bbe\u5907\u6545\u969c\u6216\u6389\u7535\u4e4b\u524d\u6ca1\u6709\u5237\u65b0\u7f13\u5b58\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6570\u636e\u4e22\u5931\u3002auto:<\/code>\u5728\u8fd9\u79cd\u9ed8\u8ba4\u6a21\u5f0f\u4e0b\uff0cVDO\u5c06\u68c0\u67e5\u5b58\u50a8\u8bbe\u5907\u5e76\u786e\u5b9a\u5b83\u662f\u5426\u652f\u6301\u5237\u65b0\u3002\u5982\u679c\u662f\u8fd9\u6837\uff0cVDO\u5c06\u4f7f\u7528\u5f02\u6b65\u6a21\u5f0f\u3002\u5982\u679c\u6ca1\u6709\uff0c\u5b83\u5c06\u4f7f\u7528\u540c\u6b65\u6a21\u5f0f\u3002<\/li>\n<\/ul>\n\u67e5\u770b\u65b0\u5efaVDO\u5377\u76f8\u5173\u7684\u4fe1\u606f<\/strong><\/div>\n\u6b63\u5982\u6211\u4eec\u5728\u4e0a\u4e00\u6b65\u7684\u8f93\u51fa\u4e2d\u770b\u5230\u7684\uff0cVDO\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3a\/dev\/mapper\/vdolvm\u7684\u65b0dm\u8bbe\u5907\u3002\u5f53\u6211\u4eec\u521b\u5efalvm\u5377\u7ec4\u65f6\uff0c\u8fd9\u5c31\u662f\u6211\u4eec\u5c06\u8981\u4f7f\u7528\u7684\u8bbe\u5907\u3002<\/p>\n \r\n[root@localhost ~]# ll \/dev\/mapper\/vdolvm \r\nlrwxrwxrwx 1 root root 7 Mar 4 13:31 \/dev\/mapper\/vdolvm -> ..\/dm-2\r\n<\/pre>\n \n\u8ba9\u6211\u4eec\u770b\u770b\u4f7f\u7528vdostats\u53ef\u4ee5\u83b7\u5f97\u6709\u5173vdo\u5377\u7684\u4ec0\u4e48\u6837\u7684\u4fe1\u606f\uff1a<\/p>\n \r\n[root@localhost ~]# vdostats --hu\r\nDevice Size Used Available Use% Space saving%\r\n\/dev\/mapper\/vdolvm 20.0G 4.0G 16.0G 20% N\/A\r\n<\/pre>\n \n\u7531\u4e8e\u6211\u4eec\u5c1a\u672a\u5c06\u4efb\u4f55\u6570\u636e\u5199\u5165\u8be5\u5377\uff0c\u56e0\u6b64Space saving%<\/code>\u5b57\u6bb5\u4e3aN\/A<\/code>\u3002\u7a0d\u540e\u6211\u4eec\u5c06\u5199\u4e00\u4e9b\u6570\u636e\u65f6\uff0c\u5728\u6b64\u5904\u770b\u5230\u66f4\u591a\u6709\u7528\u7684\u4fe1\u606f\u3002<\/p>\n \u53ef\u4ee5\u770b\u5230\u4e0a\u56fe\u4e2d\uff0c\u6211\u4eec\u8fd8\u6ca1\u6709\u5199\u4efb\u4f55\u6570\u636e\uff0c\u4f46\u662f\u5df2\u7ecf\u67094GB\uff0c20\uff05\u7684\u7a7a\u95f4\u6b63\u5728\u4f7f\u7528\u4e2d\u4e86\uff01\u8fd9\u662f\u56e0\u4e3a\u201c\u901a\u7528\u91cd\u590d\u6570\u636e\u5220\u9664\u7d22\u5f15\u201d\u5df2\u88ab\u5199\u5165\u78c1\u76d8\u3002\u8fd9\u57fa\u672c\u4e0a\u662f\u4e00\u4e2a\u6570\u636e\u5e93\uff0c\u7528\u4e8e\u8bb0\u5f55slab\u6307\u7eb9\u53ca\u5176\u4f4d\u7f6e\u3002\u8fd9\u5c31\u662f\u4f7f\u91cd\u590d\u6570\u636e\u5220\u9664\u6210\u4e3a\u53ef\u80fd\u7684\u539f\u56e0\u3002<\/p>\n \u5c06VDO\u5377\u4f5c\u4e3a\u666e\u901a\u78c1\u76d8\u8bbe\u5907\u8fdb\u884c\u8bbe\u7f6e<\/strong><\/div>\n\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u521b\u5efa\u4e86VDO\u8bbe\u5907\uff0c\u6211\u4eec\u53ef\u4ee5\u5bf9\u5176\u8fdb\u884c\u5206\u533a\u5e76\u683c\u5f0f\u5316\uff0c\u6216\u8005\u5728\u8fd9\u4e2avod\u5377\u4e0a\u9762\u521b\u5efalvm\u903b\u8f91\u5377\u3002\u4e0b\u9762\u6211\u4eec\u521b\u5efa\u903b\u8f91\u5377\uff1a<\/p>\n \r\n# \u521b\u5efa\u7269\u7406\u5377\r\n[root@localhost ~]# pvcreate \/dev\/mapper\/vdolvm \r\n Physical volume \"\/dev\/mapper\/vdolvm\" successfully created.\r\n# \u521b\u5efa\u5377\u7ec4vdo_vg\r\n[root@localhost ~]# vgcreate vdo_vg \/dev\/mapper\/vdolvm \r\n Volume group \"vdo_vg\" successfully created\r\n# \u67e5\u770bvdo_vg\u5377\u7ec4\u7684\u4fe1\u606f\r\n[root@localhost ~]# vgdisplay vdo_vg \r\n --- Volume group ---\r\n VG Name vdo_vg\r\n System ID \r\n Format lvm2\r\n Metadata Areas 1\r\n Metadata Sequence No 1\r\n VG Access read\/write\r\n VG Status resizable\r\n MAX LV 0\r\n Cur LV 0\r\n Open LV 0\r\n Max PV 0\r\n Cur PV 1\r\n Act PV 1\r\n VG Size <60.00 GiB\r\n PE Size 4.00 MiB\r\n Total PE 15359\r\n Alloc PE \/ Size 0 \/ 0 \r\n Free PE \/ Size 15359 \/ <60.00 GiB\r\n VG UUID qfPiH6-eMCU-Z6kr-eeCu-jd0J-8lmf-49daZX\r\n<\/pre>\n\u4ece\u4e0a\u9762\u53ef\u4ee5\u770b\u5230\uff0clvm\u8ba4\u4e3a\u6211\u4eec\u7684\u57fa\u7840\u78c1\u76d8\u4e3a120GB\uff0c\u5c3d\u7ba1\u6211\u4eec\u77e5\u9053\u5b83\u53ea\u670940GB\u3002\u7531\u4e8eLVM\u4e0d\u77e5\u9053VDO\u540e\u7aef\u78c1\u76d8\u7684\u5927\u5c0f\u3002 \n \n\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u521b\u5efa\u51e0\u4e2a\u903b\u8f91\u5377\u5427\uff1a<\/p>\n \r\n[root@localhost ~]# lvcreate -n vdo_lv01 -L 15G vdo_vg \r\n[root@localhost ~]# lvcreate -L 15G -n vdo_lv02 vdo_vg\r\n[root@localhost ~]# lvcreate -L 15G -n vdo_lv03 vdo_vg \r\n# \u67e5\u770b\u521b\u5efa\u597d\u7684\u903b\u8f91\u5377\r\n[root@localhost ~]# lvs -o +devices\r\n<\/pre>\n<\/p>\n \u521b\u5efa\u6302\u8f7d\u70b9\u5e76\u6302\u8f7d\u6587\u4ef6\u7cfb\u7edf<\/strong><\/div>\n\u901a\u5e38\uff0c\u521b\u5efa\u6587\u4ef6\u7cfb\u7edf\u540e\uff0c\u5b83\u5c06\u5728\u8bbe\u5907\u4e0a\u8fd0\u884cTrim<\/code>\u64cd\u4f5c\u3002\u4f7f\u7528VDO\u65f6\uff0c\u8fd9\u4e0d\u662f\u7406\u60f3\u7684\u9009\u62e9\uff0c\u56e0\u4e3a\u78c1\u76d8\u5bb9\u91cf\u662f\u6309\u9700\u5206\u914d\u7684\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u8981\u544a\u8bc9mkfs\u5728\u6587\u4ef6\u7cfb\u7edf\u521b\u5efa\u8fc7\u7a0b\u4e2d\u4e0d\u8981\u4e22\u5f03\u5757\u3002\u5bf9\u4e8eXFS\uff0c\u8bf7\u4f7f\u7528-K<\/code>\u9009\u9879\u3002\u5bf9\u4e8eEXT4\uff0c\u8bf7\u4f7f\u7528-E nodiscard<\/code>\u3002\u4e0b\u9762\u4f7f\u7528\u4e86\u4e00\u4e2afor\u5faa\u73af\uff0c\u5c06\u4e09\u4e2a\u903b\u8f91\u5377\u683c\u5f0f\u5316\u4e3aXFS\u6587\u4ef6\u7cfb\u7edf\uff1a<\/p>\n \r\n[root@localhost ~]# for i in `seq 1 3`; do mkfs.xfs -K \/dev\/vdo_vg\/vdo_lv0$i ; done\r\nmeta-data=\/dev\/vdo_vg\/vdo_lv01 isize=512 agcount=4, agsize=983040 blks\r\n = sectsz=4096 attr=2, projid32bit=1\r\n = crc=1 finobt=1, sparse=1, rmapbt=0\r\n = reflink=1\r\ndata = bsize=4096 blocks=3932160, imaxpct=25\r\n = sunit=0 swidth=0 blks\r\nnaming =version 2 bsize=4096 ascii-ci=0, ftype=1\r\nlog =internal log bsize=4096 blocks=2560, version=2\r\n = sectsz=4096 sunit=1 blks, lazy-count=1\r\nrealtime =none extsz=4096 blocks=0, rtextents=0\r\nmeta-data=\/dev\/vdo_vg\/vdo_lv02 isize=512 agcount=4, agsize=983040 blks\r\n = sectsz=4096 attr=2, projid32bit=1\r\n = crc=1 finobt=1, sparse=1, rmapbt=0\r\n = reflink=1\r\ndata = bsize=4096 blocks=3932160, imaxpct=25\r\n = sunit=0 swidth=0 blks\r\nnaming =version 2 bsize=4096 ascii-ci=0, ftype=1\r\nlog =internal log bsize=4096 blocks=2560, version=2\r\n = sectsz=4096 sunit=1 blks, lazy-count=1\r\nrealtime =none extsz=4096 blocks=0, rtextents=0\r\nmeta-data=\/dev\/vdo_vg\/vdo_lv03 isize=512 agcount=4, agsize=983040 blks\r\n = sectsz=4096 attr=2, projid32bit=1\r\n = crc=1 finobt=1, sparse=1, rmapbt=0\r\n = reflink=1\r\ndata = bsize=4096 blocks=3932160, imaxpct=25\r\n = sunit=0 swidth=0 blks\r\nnaming =version 2 bsize=4096 ascii-ci=0, ftype=1\r\nlog =internal log bsize=4096 blocks=2560, version=2\r\n = sectsz=4096 sunit=1 blks, lazy-count=1\r\nrealtime =none extsz=4096 blocks=0, rtextents=0\r\n<\/pre>\n \n\u5f53\u6211\u4eec\u5c06\u65b0\u6587\u4ef6\u7cfb\u7edf\u6302\u8f7d\u5230\u6302\u8f7d\u70b9\u65f6\uff0c\u6211\u4eec\u8981\u544a\u8bc9XFS\u653e\u5f03\u5757\uff0c\u56e0\u4e3a\u8fd9\u5c06\u5927\u5927\u52a0\u5feb\u6587\u4ef6\u5220\u9664\u7684\u901f\u5ea6\u3002<\/p>\n \r\n[root@localhost ~]# mkdir -p \/data\/{01..03}\r\n[root@localhost ~]# for i in `seq 1 3`; do mount -o discard \/dev\/vdo_vg\/vdo_lv0$i \/data\/0$i; done\r\n<\/pre>\n \n\u73b0\u5728\uff0c\u6211\u4eec\u5411\u8bbe\u5907\u5199\u5165\u4e86\u5c11\u91cf\u6570\u636e\uff0c\u6211\u4eec\u53ef\u4ee5\u518d\u6b21\u68c0\u67e5VDO\u5377\u4ee5\u67e5\u770b\u60c5\u51b5\u662f\u5426\u5df2\u66f4\u6539\u3002<\/p>\n \r\n[root@localhost ~]# vdostats --hu\r\nDevice Size Used Available Use% Space saving%\r\n\/dev\/mapper\/vdolvm 20.0G 4.0G 16.0G 20% 86%\r\n<\/pre>\n<\/p>\n \u8bbe\u7f6e\u4e3a\u5f00\u673a\u542f\u52a8<\/strong><\/div>\n\u4e0b\u9762\u5c06\u4e09\u4e2a\u903b\u8f91\u5377\u8bbe\u7f6e\u4e3a\u5f00\u673a\u542f\u52a8\uff0c\u9700\u8981\u5728fstab\u6587\u4ef6\u4e2d\u6dfb\u52a0x-systemd.device-timeout=0<\/code>\u548cx-systemd.requires=vdo.service<\/code>\u3002<\/p>\n \u4f7f\u7528blkid<\/code>\u67e5\u770b\u8fd9\u4e09\u4e2a\u903b\u8f91\u5377\u7684UUID\u3002 \n \n\u4f7f\u7528\u4e0a\u9762\u83b7\u53d6\u5230\u7684UUID\uff0c\u6dfb\u52a0\u5728\/etc\/fstab\u6587\u4ef6\u4e2d\uff1a<\/p>\n \r\n[root@localhost systemd]# vim \/etc\/fstab \r\n\r\nUUID=\"bd2c1c61-4656-4065-b5a0-3ca53ef0f949\" \/data\/01 xfs defaults,x-systemd.device-timeout=0,x-systemd.requires=vdo.service 0 0\r\nUUID=\"1e53579b-f1da-4f77-80e6-d61a40515525\" \/data\/02 xfs defaults,x-systemd.device-timeout=0,x-systemd.requires=vdo.service 0 0\r\nUUID=\"d41bf7e2-bf75-4db7-b323-a923375f6a6e\" \/data\/03 xfs defaults,x-systemd.device-timeout=0,x-systemd.requires=vdo.service 0 0\r\n<\/pre>\n\u603b\u7ed3<\/strong><\/div>\n\u865a\u62df\u6570\u636e\u4f18\u5316\u5668\uff08VDO\uff09\u662f\u4e00\u79cd\u5757\u865a\u62df\u5316\u6280\u672f\uff0c\u53ef\u63d0\u4f9b\u900f\u660e\u7684\u6570\u636e\u91cd\u590d\u5220\u9664\u529f\u80fd\u3002\u901a\u8fc7\u6d88\u9664\u5197\u4f59\u7684\u6570\u636e\u5757\uff0cVDO\u53ef\u4ee5\u5927\u5927\u51cf\u5c11\u5b9e\u9645\u4f7f\u7528\u7684\u78c1\u76d8\u5bb9\u91cf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" VDO\u7531\u4e24\u4e2a\u5185\u6838\u6a21\u5757\u548c\u4e24\u4e2a\u547d\u4ee4\u7ec4\u6210\uff1a \u7531\u4e0b\u9762\u4e24\u4e2a\u5185\u6838\u6a21\u5757\u7ec4\u6210\uff1a kvdo – \u8be5\u6a21\u5757\u52a0\u8f7d\u5230\u8bbe\u5907\u7ba1\u7406\u5668\u5c42\uff0c\u63d0\u4f9b\u7528 […]<\/p>\n","protected":false},"author":309,"featured_media":213475,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[55],"tags":[],"class_list":["post-213474","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\/213474","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\/309"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=213474"}],"version-history":[{"count":1,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/213474\/revisions"}],"predecessor-version":[{"id":213487,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/213474\/revisions\/213487"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/213475"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=213474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=213474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=213474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}