默认情况下VDI 最大只能创建2T空间
先通过
[root@xen-2]# xe sr-list
uuid ( RO) : 212563a0-ef8b-4eb8-4ca9-**
name-label ( RW): raid0-sas
name-description ( RW):
host ( RO): xen-2
type ( RO): lvm
content-type ( RO): user
[root@xen-2]# xe vdi-create type=user virtual-size=8000GiB sr-uuid=212563a0-ef8b-4eb8-4ca9-** name-label=win2008_data sm-config:type=raw
Error code: SR_BACKEND_FAILURE_79
Error parameters: , VDI Invalid size [opterr=VDI size must be between 1 MB and 2093050 MB],
解决方法:
先创建一个空间小于2T的
[root@xen-2]# xe vdi-create type=user virtual-size=2000GiB sr-uuid=212563a0-ef8b-4eb8-4ca9-** name-label=data sm-config:type=raw
3eebdc12-ae3f-44c8-a44f-**
[root@xen-2]# vgs
VG_XenStorage-212563a0-ef8b-4eb8-4ca9-** 1 2 0 wz--n- 43.66t 43.36t
通过lvs找到对应的LV关系 lvdisplay vgdisplay
--- Logical volume ---
LV Path /dev/VG_XenStorage-212563a0-ef8b-4eb8-4ca9-**/LV-3eebdc12-ae3f-44c8-a44f-**
LV Name LV-3eebdc12-ae3f-44c8-a44f-**
VG Name VG_XenStorage-212563a0-ef8b-4eb8-4ca9-**
LV UUID 6iNpla-T7kL-OdaA-CO4m-qVqa-PUmb-7KVbB7
LV Write Access read/write
LV Creation host, time klicen-xen-2, 2017-04-27 15:15:59 +0800
LV Status NOT available
LV Size 1.95 TiB
Current LE 512000
Segments 1
Allocation inherit
Read ahead sectors auto
[root@xen-2]# lvextend -L +6000G /dev/VG_XenStorage-37f60eb6-1aa6-1151-7c3f-14e083ae8cd1/LV-8b279d01-cc70-40c8-ac7f-3321d2fe932c --config global{metadata_read_only=0}
[root@xen-2]xe vdi-list params=all
点击Rescan 磁盘空间就看见了，然后在相应的主机中关联磁盘就好了。
linux grep 显示前后几行
grep -C 5 foo file 前后
grep -B 5 foo file before
grep -A 5 foo file after