java中的接口是类吗
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2022-10-30
esxi报错There is no more space for virtual disk--逻辑卷缩减！
esxi报错There is no more space for virtual disk--逻辑卷缩减！
来自 localhost.localdomain 的消息: There is no more space for virtual disk ftp-000001.vmdk. You might be able to continue this session by freeing disk space on the elevant volume, and clicking _Retry. Click Cancel to terminate this session.
问题：磁盘空间分配不合理。
解决方式，合理分配磁盘空间。磁盘做的逻辑卷，温习一下。
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
温习下逻辑卷：
1、物理卷创建
[root@node6 ~]# vgcreate renzhiyuan_vg /dev/sd[bcd]
Physical volume "/dev/sdb" successfully created
Physical volume "/dev/sdc" successfully created
Physical volume "/dev/sdd" successfully created
Volume group "renzhiyuan_vg" successfully created
[root@node6 ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sdb
VG Name renzhiyuan_vg
PV Size 1.00 GiB / not usable 4.00 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 255
Free PE 255
Allocated PE 0
PV UUID qwEDNa-gBDf-oQXK-Rlqk-j3OS-Zh05-MKJBUZ
--- Physical volume ---
PV Name /dev/sdc
VG Name renzhiyuan_vg
PV Size 1.00 GiB / not usable 4.00 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 255
Free PE 255
Allocated PE 0
PV UUID n1E2Ej-W4jN-5AB5-fewR-j8df-2mZt-zrb05b
--- Physical volume ---
PV Name /dev/sdd
VG Name renzhiyuan_vg
PV Size 1.00 GiB / not usable 4.00 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 255
Free PE 255
Allocated PE 0
PV UUID GkCwJI-B7Eo-tqD2-lR95-MDh9-qeGq-szacD4
--- Physical volume ---
PV Name /dev/sda2
VG Name vg_node6
PV Size 19.51 GiB / not usable 3.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 4994
Free PE 0
Allocated PE 4994
PV UUID jg3eKt-8cF0-JvMa-xyge-WBW4-kzOc-6iKXa6
[root@node6 ~]#
#[root@node6 ~]# pv
pvchange pvck pvcreate pvdisplay pvmove pvremove pvresize pvs pvscan
[root@node6 ~]# pv
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2、卷组创建
[root@node6 ~]# vgcreate renzhiyuan_vg /dev/sd[bcd]
A volume group called renzhiyuan_vg already exists.
[root@node6 ~]# vgdisplay
--- Volume group ---
VG Name renzhiyuan_vg
System ID
Format lvm2
Metadata Areas 3
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 3
Act PV 3
VG Size 2.99 GiB
PE Size 4.00 MiB
Total PE 765
Alloc PE / Size 0 / 0
Free PE / Size 765 / 2.99 GiB
VG UUID yEw1o5-XuUF-zk1Z-Jiu4-1kpo-Tsy2-Ca3d2n
--- Volume group ---
VG Name vg_node6
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 19.51 GiB
PE Size 4.00 MiB
Total PE 4994
Alloc PE / Size 4994 / 19.51 GiB
Free PE / Size 0 / 0
VG UUID Mbyeih-93jl-ejwH-TV44-Pq2O-vady-QXKfz7
[root@node6 ~]#
[root@node6 ~]# vg
vgcfgbackup vgck vgdisplay vgimport vgmknodes vgrename vgsplit
vgcfgrestore vgconvert vgexport vgimportclone vgreduce vgs
vgchange vgcreate vgextend vgmerge vgremove vgscan
[root@node6 ~]# vg
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3、逻辑卷创建
[root@node6 ~]# lvcreate -L 2G -n renzhiyuan_lv renzhiyuan_vg
Logical volume "renzhiyuan_lv" created
[root@node6 ~]# lvdisplay
--- Logical volume ---
LV Path /dev/renzhiyuan_vg/renzhiyuan_lv
LV Name renzhiyuan_lv
VG Name renzhiyuan_vg
LV UUID nW3HXj-CwOI-8lVo-B3Zo-nVKd-fNa6-1tUy3m
LV Write Access read/write
LV Creation host, time node6, 2016-08-26 09:33:50 +0800
LV Status available
# open 0
LV Size 2.00 GiB
Current LE 512
Segments 3
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
--- Logical volume ---
LV Path /dev/vg_node6/lv_root
LV Name lv_root
VG Name vg_node6
LV UUID Jgu4Y4-ZT8T-ooW6-riiH-Xt4y-Jq30-d5qyvL
LV Write Access read/write
LV Creation host, time node6, 2016-04-28 09:13:33 +0800
LV Status available
# open 1
LV Size 17.57 GiB
Current LE 4498
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
--- Logical volume ---
LV Path /dev/vg_node6/lv_swap
LV Name lv_swap
VG Name vg_node6
LV UUID waK7aN-5CLw-Mkkw-l1o1-BXny-q71j-vPLV5I
LV Write Access read/write
LV Creation host, time node6, 2016-04-28 09:13:36 +0800
LV Status available
# open 1
LV Size 1.94 GiB
Current LE 496
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1
[root@node6 ~]#
[root@node6 ~]# lv
lvchange lvdisplay lvmchange lvmdump lvmsar lvrename lvscan
lvconvert lvextend lvmconf lvmetad lvreduce lvresize
lvcreate lvm lvmdiskscan lvmsadc lvremove lvs
[root@node6 ~]# lv
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4、格式化逻辑卷
[root@node6 ~]# mkfs.ext4 /dev/renzhiyuan_vg/renzhiyuan_lv
mke2fs 1.41.12 (17-May-2010)
文件系统标签=
操作系统:Linux
块大小=4096 (log=2)
分块大小=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
131072 inodes, 524288 blocks
26214 blocks (5.00%) reserved for the super user
第一个数据块=0
Maximum filesystem blocks=536870912
16 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912
正在写入inode表: 完成
Creating journal (16384 blocks): 完成
Writing superblocks and filesystem accounting information: 完成
This filesystem will be automatically checked every 36 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
[root@node6 ~]#
5、挂载逻辑卷
[root@node6 ~]# mount /dev/renzhiyuan_vg/renzhiyuan_lv /opt/renzhiyuan/
[root@node6 ~]# df -TH
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vg_node6-lv_root
ext4 19G 1.2G 17G 7% /
tmpfs tmpfs 515M 0 515M 0% /dev/shm
/dev/sda1 ext4 500M 27M 448M 6% /boot
/dev/mapper/renzhiyuan_vg-renzhiyuan_lv
ext4 2.1G 3.2M 2.0G 1% /opt/renzhiyuan
[root@node6 ~]#
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
6、缩减逻辑卷
6.1）卸载
[root@node6 ~]# umount /opt/renzhiyuan/
[root@node6 ~]# df -TH
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vg_node6-lv_root
ext4 19G 1.2G 17G 7% /
tmpfs tmpfs 515M 0 515M 0% /dev/shm
/dev/sda1 ext4 500M 27M 448M 6% /boot
[root@node6 ~]#
6.2）强制对文件系统进行检查
[root@node6 ~]# e2fsck -f /dev/renzhiyuan_vg/renzhiyuan_lv
e2fsck 1.41.12 (17-May-2010)
第一步: 检查inode,块,和大小
第二步: 检查目录结构
第3步: 检查目录连接性
Pass 4: Checking reference counts
第5步: 检查簇概要信息
/dev/renzhiyuan_vg/renzhiyuan_lv: 11/131072 files (0.0% non-contiguous), 25388/524288 blocks
[root@node6 ~]#
6.3）对文件系统进行缩减
[root@node6 ~]# resize2fs /dev/renzhiyuan_vg/renzhiyuan_lv 1G
resize2fs 1.41.12 (17-May-2010)
Resizing the filesystem on /dev/renzhiyuan_vg/renzhiyuan_lv to 262144 (4k) blocks.
The filesystem on /dev/renzhiyuan_vg/renzhiyuan_lv is now 262144 blocks long.
[root@node6 ~]#
6.4）对逻辑卷进行缩减
[root@node6 ~]# lvreduce -L 1G /dev/renzhiyuan_vg/renzhiyuan_lv
WARNING: Reducing active logical volume to 1.00 GiB
THIS MAY DESTROY YOUR DATA (filesystem etc.)
Do you really want to reduce renzhiyuan_lv? [y/n]: y
Size of logical volume renzhiyuan_vg/renzhiyuan_lv changed from 2.00 GiB (512 extents) to 1.00 GiB (256 extents).
Logical volume renzhiyuan_lv successfully resized
[root@node6 ~]#
[root@node6 ~]# lvdisplay
--- Logical volume ---
LV Path /dev/renzhiyuan_vg/renzhiyuan_lv
LV Name renzhiyuan_lv
VG Name renzhiyuan_vg
LV UUID nW3HXj-CwOI-8lVo-B3Zo-nVKd-fNa6-1tUy3m
LV Write Access read/write
LV Creation host, time node6, 2016-08-26 09:33:50 +0800
LV Status available
# open 0
LV Size 1.00 GiB
Current LE 256
Segments 2
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
6.5）挂载验证
[root@node6 ~]# mount /dev/renzhiyuan_vg/renzhiyuan_lv /opt/renzhiyuan/
[root@node6 ~]# df -TH
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vg_node6-lv_root
ext4 19G 1.2G 17G 7% /
tmpfs tmpfs 515M 0 515M 0% /dev/shm
/dev/sda1 ext4 500M 27M 448M 6% /boot
/dev/mapper/renzhiyuan_vg-renzhiyuan_lv
ext4 990M 2.7M 934M 1% /opt/renzhiyuan
[root@node6 ~]#
完成！
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