增加减少卷 lvm

增加减少卷 lvm (2011-01-0509:25:09)[编辑][删除]转载▼标签： 杂谈分类： 信息技术1、减少，必须umount[root@rhel55~]#e2fsck-f/dev/jack/opte2fsck1.39(29-May-2006)Pass1:Checkinginodes,blocks,andsizesPass2:CheckingdirectorystructurePass3:CheckingdirectoryconnectivityPass4:CheckingreferencecountsPass5:Checkinggroupsummaryinformation/dev/jack/opt:11/5124480files(9.1%non-contiguous),204538/5120000blocks [root@rhel55~]#resize2fs/dev/jack/opt5120000resize2fs1.39(29-May-2006)Resizingthefilesystemon/dev/jack/optto5120000(4k)blocks.Thefilesystemon/dev/jack/optisnow5120000blockslong. [root@rhel55~]#resize2fs/dev/jack/opt2560000resize2fs1.39(29-May-2006)Resizingthefilesystemon/dev/jack/optto2560000(4k)blocks.Thefilesystemon/dev/jack/optisnow2560000blockslong.  [root@rhel55~]#fsadmcheck/dev/jack/optfsck1.39(29-May-2006)e2fsck1.39(29-May-2006)/dev/mapper/jack-opt:clean,11/2578560files,122772/2560000blocks [root@rhel55~]#lvreduce--size-10g/dev/jack/opt  /dev/hdc:openfailed:Nomediumfound  WARNING:Reducingactivelogicalvolumeto9.53GB  THISMAYDESTROYYOURDATA(filesystemetc.)Doyoureallywanttoreduceopt?[y/n]:y  Reducinglogicalvolumeoptto9.53GB  Logicalvolumeoptsuccessfullyresized 2、增加，只要是ext3，mount时可以动态增加[root@rhel55~]#vgs  /dev/hdc:openfailed:Nomediumfound  VG   #PV#LV#SNAttr   VSize  VFree  da     5   1   0wz--n-  4.96G  3.46G  jack   1   7   0wz--n-79.88G10.00G [root@rhel55~]#df-k|grep-ivar/dev/mapper/jack-var   4951688    210340   4485760   5%/var [root@rhel55~]#lvextend--size+200M/dev/jack/var  /dev/hdc:openfailed:Nomediumfound  Roundingupsizetofullphysicalextent224.00MB  Extendinglogicalvolumevarto5.09GB  Logicalvolumevarsuccessfullyresized [root@rhel55~]#resize2fs/dev/jack/var5090Mresize2fs1.39(29-May-2006)Filesystemat/dev/jack/varismountedon/var;on-lineresizingrequiredPerforminganon-lineresizeof/dev/jack/varto1303040(4k)blocks.Thefilesystemon/dev/jack/varisnow1303040blockslong. [root@rhel55~]#df-k|grep-ivar/dev/mapper/jack-var   5047936    210344   4576988   5%/var [root@rhel55~]#lvextend--size+200M/dev/jack/var  /dev/hdc:openfailed:Nomediumfound  Roundingupsizetofullphysicalextent224.00MB  Extendinglogicalvolumevarto5.31GB  Logicalvolumevarsuccessfullyresized[root@rhel55~]#resize2fs/dev/jack/var5310Mresize2fs1.39(29-May-2006)Filesystemat/dev/jack/varismountedon/var;on-lineresizingrequiredPerforminganon-lineresizeof/dev/jack/varto1359360(4k)blocks.Thefilesystemon/dev/jack/varisnow1359360blockslong.[root@rhel55~]#df-k|grep-ivar/dev/mapper/jack-var   5265008    210344   4784336   5%/var [root@rhel55~]#df-k|grep-ihome/dev/mapper/jack-home                       9903432    153748   9238504   2%/home[root@rhel55~]#lvextend--size+200M/dev/jack/home  /dev/hdc:openfailed:Nomediumfound  Roundingupsizetofullphysicalextent224.00MB  Extendinglogicalvolumehometo9.97GB  Logicalvolumehomesuccessfullyresized[root@rhel55~]#resize2fs/dev/jack/home9970Mresize2fs1.39(29-May-2006)Filesystemat/dev/jack/homeismountedon/home;on-lineresizingrequiredOn-lineshrinkingfrom2555904to2552320notsupported. [root@rhel55~]#resize2fs/dev/jack/home10000Mresize2fs1.39(29-May-2006)Filesystemat/dev/jack/homeismountedon/home;on-lineresizingrequiredPerforminganon-lineresizeof/dev/jack/hometo2560000(4k)blocks.Thefilesystemon/dev/jack/homeisnow2560000blockslong.[root@rhel55~]#resize2fs/dev/jack/home10200Mresize2fs1.39(29-May-2006)Filesystemat/dev/jack/homeismountedon/home;on-lineresizingrequiredPerforminganon-lineresizeof/dev/jack/hometo2611200(4k)blocks.Thefilesystemon/dev/jack/homeisnow2611200blockslong.[root@rhel55~]#resize2fs/dev/jack/home10500Mresize2fs1.39(29-May-2006)Thecontainingpartition(ordevice)isonly2613248(4k)blocks.Yourequestedanewsizeof2688000blocks.[root@rhel55~]#bcbc1.06Copyright1991-1994,1997,1998,2000FreeSoftwareFoundation,Inc.ThisisfreesoftwarewithABSOLUTELYNOWARRANTY.Fordetailstype`warranty'.2613248*4/102410208 [root@rhel55~]#resize2fs/dev/jack/home10208Mresize2fs1.39(29-May-2006)Filesystemat/dev/jack/homeismountedon/home;on-lineresizingrequiredPerforminganon-lineresizeof/dev/jack/hometo2613248(4k)blocks.Thefilesystemon/dev/jack/homeisnow2613248 [root@rhel55~]#df-k|grep-ihome/dev/mapper/jack-home                      10124600    153748   9454352   2%/home [root@rhel55~]#df-k|grep-iusr/dev/mapper/jack-usr   9903432   2871644   6520608  31%/usr[root@rhel55~]#vgs  /dev/hdc:openfailed:Nomediumfound  VG   #PV#LV#SNAttr   VSize  VFree  da     5   1   0wz--n-  4.96G3.46G  jack   1   7   0wz--n-79.88G9.34G[root@rhel55~]#lvextend--size+4G/dev/jack/usr  /dev/hdc:openfailed:Nomediumfound  Extendinglogicalvolumeusrto13.75GB  Logicalvolumeusrsuccessfullyresized [root@rhel55~]#resize2fs/dev/jack/usr15Gresize2fs1.39(29-May-2006)Thecontainingpartition(ordevice)isonly3604480(4k)blocks.Yourequestedanewsizeof3932160blocks.[root@rhel55~]#bcbc1.06Copyright1991-1994,1997,1998,2000FreeSoftwareFoundation,Inc.ThisisfreesoftwarewithABSOLUTELYNOWARRANTY.Fordetailstype`warranty'.3604480*4/102414080[root@rhel55~]#resize2fs/dev/jack/usr14080Mresize2fs1.39(29-May-2006)Filesystemat/dev/jack/usrismountedon/usr;on-lineresizingrequiredPerforminganon-lineresizeof/dev/jack/usrto3604480(4k)blocks.Thefilesystemon/dev/jack/usrisnow3604480blockslong.[root@rhel55~]#df-k|grep-iusr/dev/mapper/jack-usr  13966400   2874136  10371420  22%/usr [root@rhel55~]#df-kFilesystem           1K-blocks      UsedAvailableUse%Mountedon/dev/mapper/jack-root                      29551576    403044  27623184   2%/ [root@rhel55~]#vgs  /dev/hdc:openfailed:Nomediumfound  VG   #PV#LV#SNAttr   VSize  VFree  da     5   1   0wz--n-  4.96G3.46G  jack   1   7   0wz--n-79.88G5.34G[root@rhel55~]#lvextend--size+3G/dev/jack/root  /dev/hdc:openfailed:Nomediumfound  Extendinglogicalvolumerootto32.09GB  Logicalvolumerootsuccessfullyresized[root@rhel55~]#resize2fs/dev/jack/root40Gresize2fs1.39(29-May-2006)Thecontainingpartition(ordevice)isonly8413184(4k)blocks.Yourequestedanewsizeof10485760blocks.[root@rhel55~]#bcbc1.06Copyright1991-1994,1997,1998,2000FreeSoftwareFoundation,Inc.ThisisfreesoftwarewithABSOLUTELYNOWARRANTY.Fordetailstype`warranty'.8413184*4/102432864[root@rhel55~]#resize2fs/dev/jack/root32864Mresize2fs1.39(29-May-2006)Filesystemat/dev/jack/rootismountedon/;on-lineresizingrequiredPerforminganon-lineresizeof/dev/jack/rootto8413184(4k)blocks.Thefilesystemon/dev/jack/rootisnow8413184blockslong.[root@rhel55~]#df-kFilesystem           1K-blocks      UsedAvailableUse%Mountedon/dev/mapper/jack-root                      32598844    407088  30510800   2%/