Linux將空閑磁盤空間分區(qū)加入LVM總結(jié)

背景：虛機存在磁盤空間未分區(qū)及掛載，需將未分區(qū)的磁盤空間劃分到LVM,并加到制定的目錄下/home思路：1、將空閑空間進行分區(qū)2、將分好的分區(qū)加到LVM操作步驟：1、在root用戶下執(zhí)行fdisk-分析：13055-26108的柱面未利用[rf2xj-imdmz2-tycj-cj31傘fdisk-1Disk/dev/sda:214.7GB,214740364SOObytes255heads,EMsector5/track,26108匚ylindersunits=cylindersof16065*512=S2252SObytesSector5ize_cal/physical):512b/tes/5LZbytesI/Osize(rrrirrimum/□ptima'I):512bytes/512bytesDiskIdentifier:0x00096b73DeviceBootStartEndBlocks/devAdalfr1&4512000parririon1doesnonendoncyl1nderboiindary?/dev/5da26413055104344576IdSystemS3LinuxBeLinuxL\A1Di^k/dev/mapper/volGroup-'lv_root:53.7GB,53687091200bytes255heads,63sectors/track,6527cylindarsUnits=cylindersof16065百512=S2252SObytes2已crorsize(1ogical/physical:512bytes/5LZbytesi/o(nrininiuni/optima'I:512b/r&s/512bytesDisk-idsrifif-ier:0x00000000Disk/dev/rTiapper/VolGroup-1v_swap:8405MB,3405385216bytes255heads,^3sector5/track,1021匚ylindersunits=cylindersof16065u512=8225280bytessectorsize("loglcal/[ahyslcal):512byres/51Zbytesi/osize(mlrrirriLim/□ptima1):512bytes/512bytesDiskIdentifier:0x00000000Disk/dev/mapper/VolGroup-1v_home:44.3GB,447532236S0bytes255heads,63sector5/Track,5440cyl1nder5Units=cylindersof16065燈512=8225280bytessectorsl2e("Ioglcal/physical):512bytes/512bytesi/o5lz已帥廿怖⑻/口卩工詢打)：512byres/512bytesD-isk-ideritifier:0x000000002、對/dev/sda剩余空間進行再分區(qū)，執(zhí)行fdisk/dev/sda[rcicrtt&ziQE4F2>ci-NDiwiz2-TY(zzi-cz：iMlfdisk/dev/sdaWARNING:DOS-compatiblemodeisdeprEumtEchIt'55tronglyrecommendedtoswitchoffthemode(command'c'andchangeaisplayunitstosectors(commarid'u').匚口mrnarid(mforhelp):ncommandactioneextendedpprimarypartit1on(丄一冷)Pmrfifionnutnber(1-4):|3\F-irstcylinder(13055-26108,default13055):usingdefaultvalue13055Lastcyllnder,+cylindersor+size{K,M,G}C13O55-2610S,defaultZ610S):Usingdefault\xalue2610Scommand(mforhe!p)JtIPartifionnumber(1-4):|3|HexcodeCtypeLtolist~des):|Be|changedsystemtypeofpmrfifionsto82(Linuxlvm)command(mforhelp):|wThepartitlontablehasbeenaltered!cal"Iingiocti()tore-readparTiTiontable?warning:Re-rma日"ingtheparfit1ontab!efal1edwithError16:DevicerEsciurtmThek^rnelsti11usestheoldtable.Thenewtab!ewillbeusedatthenextrebootafteryciurunpartpr口be(8^)orkpaSyncingdisks.3、檢查分區(qū)是否成功二yI111qu1二r-.二?[rOOt@JQ64F2XJ-NDMZ2-TYCJ-CJ31-Rfdi5k-1Disk/dew/sda:214.7GB,214748364800bytes255h已ad3s63sectors/track,261OScylinder5Units=cyl-iridersof16065燈512=8225280bytessectorsize("loglcal/physical):512bytes/512byres1/0已);512byres/512bytesDisk-idenfif-ier:OyOOO96b73DeviceBoot

/dev/sdal卞parrlrlon1doesDeviceBoot

/dev/sdal卞parrlrlon1does/cevAc/dey/sda3Start1norendon6413055b"Iack5512000cyl1nderboundary.1305510434457626108104854910IdSystem83l_inux&已l_~i門UKi_wi8&LinuxLVMDisk/dev/mapper/volGrQup-lv_rQOT:53.7gs,5H&87091200bytes255heads,63sectors/track?6527cylinders512bytesbytesunits=cylindersof16065劉512=82252SObytesSectorsize(loglcal/physical):512bytes/'512bytesbytesI/Osi2S(mlrrimum/opTImai):512bytes/512DiskIdentifier:0x00000000Dl5k/dev/mapper/volGroup-lv_5wap:S405MB,340533521&bytes255heads,EMsectors/track,1021cy~\indersUnits=cylindersof16065*512=32252SObytessectorsize("loglcal/physlcal):512bytes/512byresI/Osize(rrrirrimum/optnma1):512bytes/512bytesDisk-idenfif-ier:0x00000000Disk/dew/mapper/volGroup-lv_home:44.SGB,44753223&80bytes255head5,巧Msectors/Track,5440cylinder5Uni=cyl-iridersof16065直512=8225280bytesSectorsize("logical/physical):512bytes/512byt&s1/0size(mlrrimum/opt1ma1^):512bytes/512bytesDi^k■ident-if-ier:0x000000004、重啟使其生效，執(zhí)行reboot5、創(chuàng)建物理卷：pvcreate/dev/sda3I-口_：■_：■VfII_J?[root@JQ64F2XJ-NDMZ2-TYCJ-CJ31-]#[ovcreaTe/dev/5da3wriringphysicalvolumedataT□disk"/dev/sda3"Physicalvolume"/dev/sda3"successfullycreated[root@-JQ.64F2XJ-NDMZ2-TYCJ-CJ31?]羋pvdlsplayPhysicalvolumepvName/dev/sda2"/dev/sda^"i5——newphysicalhr[root@-JQ.64F2XJ-NDMZ2-TYCJ-CJ31?]羋pvdlsplayPhysicalvolumepvName/dev/sda2"/dev/sda^"i5——newphysicalhr訓(xùn)physicilvolumeof"100.00GiBvolumePVNameVGNamepvsize100?00GBAl1ocatabl&PE51zeTotalPEFreeP匚Al1ocatedPLPVUUIDNO0000fkfeK?-57Gn-QMu4-qw4W-BrJK-MHcU-ugDE416、查看/dev/sda2的組空間：pvdisplaypvsizeAllocatablepeTotalPEpvsizeAllocatablepeTotalPEFreePEAllocatedpepvUUID99.51GIB/notusable3.00MlByes(butfull}4.00M-iB25474025474wBulQd-20k7-jmLT-JWh-i-5_ll<Ci-CiGwH-_lj43mA[root@-JQ.64F2XJ-NDMZ2-T￥CJ-CJ3L?]羋7、將創(chuàng)建的物理卷/dev/sda3加到指定的組空間中VolGroup：vgextendVolGroup/dev/sda3[rOOT@JQ64F2XJ-NDNZ2-TYCJ-cJ31vqextendVolGroup/dev/sdaBvolumegroup"volGroup"successfullyextended[rOOt@JQ64F2XJ-NDM22-TYCJ-CJ31?]#|8、確認/dev/sda和/dev/sda3的組空間是否一致：pvdisplay[rOOT@JQ64P2XJ-NDM22-TYCJ-CJ31-]#pydisplayPhyslealyo"lurnspvNamevgNameAllocalableAllocalablepesizeTotalPEFreePEAllocatedpepvUUIDPhysicalvolumefa/MamEB/notusable1.37MlByes4.00mIb2559925599fkfeR9-57Gn-0Mu4-qw4W-BrJK-MHcU-ugD匚41[rOOt?JQ54f2xj-NDMZ2-tycj-cJ31-]#I9、查看卷組空間情況：vgdisplay由下圖紅框所示，有100G的空間可供擴展添加到/home分區(qū)中[rooi:@JQ64F2XJ-NDMZ2-TYCJ-CJ31vgdlsplayvolumegroupVGNamesystemIDFcirrnmtMeradaraAreas網(wǎng)已tadata5equ已門(:已VGAccessVGstatus阿AXLVcurlvopenlvMaxpvcurpvactpvvgsizePE￡l2￡TotalPEAllocPE/SizeFreeP匚/sizeVGUUIDvolGroupNO"Ivm2read/w「壯丘r°22199.50GiB4.00MlB5107325474/qq.Fl25599/100.00GlBwSjeus-JHAb-MCBO-ur1wn-of5f-7G5d-RuRhvi[rOOt@JQ64F2XJ-NDM22-TYCJ-CJ31~]￥df-hPllesvsTemsizeusedAvail□se%Mountedon/dev/mapper/vo"lGroup-■lvroot50g2.9g44g7%/tmpfs7.8G88K7.8G1%/dav/shm/dev/sdal485M37M423M8%/boot/dsy/mapper/volGroup-■lvhome42G3.4G36G9塔/home10、擴展/home分區(qū)(/dev/mapper/VolGroup-lv_home)：Ivresize-L+100G/dev/mapper/VolGroup-lv_home如下有報錯說明實際沒有100G可擴展，適當調(diào)小些：lvresize-L+99.99G/dev/mapper/VolGroup-lv_home[root@JQ64F2XJ-NDMZ2-TYCJ-CJ31Ivresize-L+1OOG/dev/mapper/volGroup-1v_home匚xtending1ogncalvo~lume1v_homet口141.68GnBinsufflcientfree5pace:25600extentsneeded,butonly25599aval1able「kii—>i->-riW11--iilI--i■>>■■1r>ir-.r.ii-r—it-■rr1r1I'-!~lJ±[r□ct@JQ&4F2XJ-NDMZ2-TYCJ-CJ31lvresize-L十99.99G/clev/mapper/VolGroup-lV-homeRoundingsizetoboundarybetweenphysi匚alextents:99?99GiBExtending1ogicalvolume1v_hometo141.67gibLogicalvolume1v_homesuccessfullyresized[root?JQ64F2XJ-忖0冏￡2—?。[21—匸21￡丄,執(zhí)行此命名需要等待一定的時間，具體視擴展分11、使擴展的分區(qū)有效：區(qū)大小而定)執(zhí)行此命名需要等待一定的時間