linux-逻辑卷

              物理卷-》卷组-》逻辑卷

   添加分区      

Command (m for help): nAll primary partitions are in useAdding logical partition 9First sector (50341888-62914559, default 50341888): Using default value 50341888Last sector, +sectors or +size{K,M,G} (50341888-62914559, default 62914559): +1GPartition 9 of type Linux and of size 1 GiB is set

修改分区格式
Command (m for help): tPartition number (1-9, default 9): 9Hex code (type L to list all codes): 8eChanged type of partition 'Linux' to 'Linux LVM'
Command (m for help): p
/dev/sda7        46143488    48240639     1048576   8e  Linux LVM/dev/sda8        48242688    50339839     1048576   8e  Linux LVM/dev/sda9        50341888    52439039     1048576   8e  Linux LVM保存退出
Command (m for help): w
    系统识别：
[root@localhost Desktop]# partprobe 
   创建物理卷：
[root@localhost Desktop]# pvcreate /dev/sda{8,9}  Physical volume "/dev/sda8" successfully created  Physical volume "/dev/sda9" successfully created
详细查看
[root@localhost Desktop]# pvdisplay   "/dev/sda8" is a new physical volume of "1.00 GiB"  --- NEW Physical volume ---  PV Name               /dev/sda8  VG Name                 PV Size               1.00 GiB  Allocatable           NO  PE Size               0  PE大小显示为0   Total PE              0  Free PE               0  Allocated PE          0  PV UUID               ttpcEb-kAXo-hbJP-wzRq-Xzr5-Ggu4-O0K9Jm
查看个数
[root@localhost Desktop]# pvscan   PV /dev/sda8         lvm2 [1.00 GiB]  PV /dev/sda9         lvm2 [1.00 GiB]  Total: 2 [2.00 GiB] / in use: 0 [0   ] / in no VG: 2 [2.00 GiB]
删除物理卷
[root@localhost Desktop]# pvremove /dev/sda{9,8}  Labels on physical volume "/dev/sda9" successfully wiped  Labels on physical volume "/dev/sda8" successfully wiped
创建查看卷组
[root@localhost Desktop]# vgcreate -s 8M myvg  /dev/sda{8,9}  Volume group "myvg" successfully created[root@localhost Desktop]# vgs  VG   #PV #LV #SN Attr   VSize VFree  myvg   2   0   0 wz--n- 1.98g 1.98g
添加删除卷组
[root@localhost Desktop]# vgreduce myvg /dev/sda8  Removed "/dev/sda8" from volume group "myvg"[root@localhost Desktop]# vgextend myvg /dev/sda10  Physical volume "/dev/sda10" successfully created  Volume group "myvg" successfully extended
创建查看逻辑卷
[root@localhost Desktop]# lvcreate -n testlv -L 1G myvgWARNING: dos signature detected on /dev/myvg/testlv at offset 510. Wipe it? [y/n]: y  Wiping dos signature on /dev/myvg/testlv.  Logical volume "testlv" created.[root@localhost Desktop]# lvs  LV     VG   Attr       LSize Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert  testlv myvg -wi-a----- 1.00g                                                    
删除逻辑卷
[root@localhost Desktop]# lvremove /dev/myvg/testlv Do you really want to remove active logical volume testlv? [y/n]: y  Logical volume "testlv" successfully removed
格式化，挂载
[root@localhost Desktop]# mount /dev/myvg/testlv test7[root@localhost Desktop]# ls /test7ls: cannot access /test7: No such file or directory[root@localhost Desktop]# ls test7/lost+found
创建快照卷
[root@localhost Desktop]# cp test6 test7[root@localhost Desktop]# ls test7lost+found  test6[root@localhost Desktop]# lvcreate -s -p r -L 20M -n testlv-na /dev/myvg/testlv  Rounding up size to full physical extent 24.00 MiB  Logical volume "testlv-na" created.
挂载快照卷
[root@localhost Desktop]# mkdir test8[root@localhost Desktop]# mount /dev/myvg/testlv test8[root@localhost Desktop]# ls test8lost+found  test6[root@localhost Desktop]# 
必须删除快照卷才可以增加逻辑卷 物理增加
[root@localhost Desktop]# lvextend -L +200M /dev/myvg/testlv   Size of logical volume myvg/testlv changed from 1.00 GiB (128 extents) to 1.20 GiB (153 extents).  Logical volume testlv successfully resized.
[root@localhost Desktop]# df -lhFilesystem               Size  Used Avail Use% Mounted on/dev/sda3                 18G  4.7G   14G  27% /devtmpfs                 475M     0  475M   0% /devtmpfs                    489M  156K  489M   1% /dev/shmtmpfs                    489M  7.1M  482M   2% /runtmpfs                    489M     0  489M   0% /sys/fs/cgroup/dev/sda1                297M  144M  154M  49% /boottmpfs                     98M   28K   98M   1% /run/user/1000/dev/mapper/myvg-testlv  976M  1.3M  924M   1% /home/hzk/Desktop/test7
逻辑增加
[root@localhost Desktop]# lvresize -p /dev/myvg/testlv [root@localhost Desktop]# df -lh/dev/mapper/myvg-testlv  1.2G  1.6M  1.1G   1% /home/hzk/Desktop/test7
 
 
                                             
        0        0           
	
				
	
					   
linux建立逻辑卷
	  	   
linux逻辑卷管理
	  	   
Linux逻辑卷
	  	   
LINUX 扩展逻辑卷
	  	   
linux 逻辑卷管理
	  	   
Linux LVM逻辑卷
	  	   
Linux创建逻辑卷
	  	   
linux 逻辑卷
	  	   
Linux的逻辑卷
	  	   
linux-逻辑卷
	  	   
Linux逻辑卷管理
	  	   
Linux逻辑卷扩展
	  	   
linux逻辑卷使用
	  	   
Linux逻辑卷
	  	   
linux 分区 物理卷 逻辑卷
	  	   
【Linux】逻辑卷 物理卷 快照
	  	   
LINUX下逻辑卷管理
	  	   
linux逻辑卷管理 (LVM)
	     		  
	  	   
base64解密
	  	   
膨胀与腐蚀算法
	  	   
ZigBee 3.0 《Base-Device-Behavior-Specification》--Network steering（在网）
	  	   
WPF:ListBox的默认ItemContainerStyle
	  	   
Agent和Broker的差别是什么？
	  	   
linux-逻辑卷
	  	   
POJ_1111_Image Perimeters【DFS】
	  	   
return用处
	  	   
Leaflet加载Portable Basemap Server的WMTS服务
	  	   
免安装版jdk
	  	   
nyoj 236 心急的C小加
	  	   
增加 tenant(租客）服务
	  	   
声音识别动画(下)-----线形(曲线)声音识别动画
	  	   
初识Memcache---（2）使用memcache