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《linux-LVM-動(dòng)態(tài)調(diào)整磁盤(pán)容量.docx》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在教育資源-天天文庫(kù)。
1、一、創(chuàng)建邏輯卷的步驟：1）通過(guò)fdisk工具將磁盤(pán)轉(zhuǎn)換為linux分區(qū)2）通過(guò)pvcreate命令將linux分區(qū)轉(zhuǎn)換成物理卷（PV)；3）通過(guò)vgcreate命令將創(chuàng)建好的物理卷處理成卷組（VG)；4）通過(guò)lvcreate命令將卷組分成若干個(gè)邏輯卷（LV)；5）對(duì)邏輯卷進(jìn)行格式化，掛載，動(dòng)態(tài)調(diào)整邏輯卷的大小，并且該操作不會(huì)影響邏輯卷（Lv)上的數(shù)據(jù)。二、物理卷(PV)創(chuàng)建及管理具體操作步驟：1）先查看linux分區(qū)，將未使用空間轉(zhuǎn)換為物理卷(先使用fdisk建立普通分區(qū))?[root@RHEL5~]#fdisk-l/dev/sdb??#查看linux分區(qū)
2、情況Disk/dev/sdb:21.4GB,21474836480bytes255heads,63sectors/track,2610cylindersUnits=cylindersof16065*512=8225280bytes??DeviceBoot?????Start????????End?????Blocks??Id?System/dev/sdb1??????????????1????????500????4016218+?83?Linux/dev/sdb2????????????501???????1000????4016250??83?Linu
3、x/dev/sdb3???????????1001???????1500????4016250??83?Linux/dev/sdb4???????????1501???????2610????8916075???5?Extended/dev/sdb5???????????1501???????2610????8916043+?83?Linux備注：/dev/sdb是一塊新增加的磁盤(pán)，上面沒(méi)有任何數(shù)據(jù)，也未掛載2）將linux物理分區(qū)轉(zhuǎn)變?yōu)槲锢砭??[root@RHEL5~]#pvcreate/dev/sdb{1,2}?#將物理分區(qū)/dev/sdb{1,2}
4、轉(zhuǎn)變?yōu)槲锢砭?Physicalvolume"/dev/sdb1"successfullycreated?Physicalvolume"/dev/sdb2"successfullycreated3）#使用Pvscan查看物理卷信息?[root@RHEL5~]#pvscan??????????????????#查看物理卷信息，會(huì)顯示所有物理卷信息?PV/dev/sda2??VGVolGroup00??lvm2[39.88GB/0???free]?PV/dev/sdb1??????????????????lvm2[3.83GB]?PV/dev/sdb2?????
5、?????????????lvm2[3.83GB]?Total:3[47.54GB]/inuse:1[39.88GB]/innoVG:2[7.66GB]4）使用pvdisplay查看各物理卷詳細(xì)參數(shù)??[root@RHEL5~]#pvdisplay?????#查看各物理卷詳細(xì)參數(shù)?---Physicalvolume---?PVName??????????????/dev/sda2?VGName??????????????VolGroup00?PVSize??????????????39.90GB/notusable20.79MB?Allocatable??
6、????????yes(butfull)?PESize(KByte)??????32768?TotalPE?????????????1276?FreePE??????????????0?AllocatedPE?????????1276?PVUUID??????????????aJlaad-NHPT-Cgg3-7yu4-a2RJ-kJJ1-qxSFgD???---NEWPhysicalvolume---?PVName??????????????/dev/sdb1?VGName???????????????PVSize??????????????3.83GB?
7、Allocatable??????????NO?PESize(KByte)??????0?TotalPE?????????????0?FreePE??????????????0?AllocatedPE?????????0?PVUUID??????????????v2VajD-yS53-SiQA-yTzu-KOiD-RyT3-p0wTvt???---NEWPhysicalvolume---?PVName??????????????/dev/sdb2?VGName???????????????PVSize??????????????3.83GB?Allocat
8、able??????????NO?PESize(KByte)???
