标签：recognized primary default contain careful
iscsi 是直接对设备进行共享的服务
启动iscsi共享设备
在server上
建立一个lvm设备
[root@localhost ~]# fdisk /dev/vdb
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0x1d7d0413.
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4, default 1):
First sector (2048-20971519, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-20971519, default 20971519): +1000M
Partition 1 of type Linux and of size 1000 MiB is set
Command (m for help): p
Disk /dev/vdb: 10.7 GB, 10737418240 bytes, 20971520 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x1d7d0413
Device Boot Start End Blocks Id System
/dev/vdb1 2048 2050047 1024000 83 Linux
Command (m for help): t
Selected partition 1
Hex code (type L to list all codes): 8e
Changed type of partition ‘Linux‘ to ‘Linux LVM‘
Command (m for help): p
Disk /dev/vdb: 10.7 GB, 10737418240 bytes, 20971520 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x1d7d0413
Device Boot Start End Blocks Id System
/dev/vdb1 2048 2050047 1024000 8e Linux LVM
Command (m for help): wq
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@localhost ~]# partprobe
[root@localhost ~]# pvcreate /dev/vdb1
Physical volume "/dev/vdb1" successfully created
[root@localhost ~]# vgcreate vg0 /dev/vdb1
Volume group "vg0" successfully created
[root@localhost ~]# lvcreate -l 249 -n iscsi_storage vg0
Logical volume "iscsi_storage" created
[root@localhost ~]# lvs
LV VG Attr LSize Pool Origin Data% Move Log Cpy%Sync Convert
iscsi_storage vg0 -wi-a----- 996.00m
[root@localhost ~]# yum install targetcli -y 安装targetcli服务
[root@localhost ~]# systemctl enable target
[root@localhost ~]# targetcli
/> ls
o- / ..................................................................... [...]
o- backstores .......................................................... [...]
| o- block .............................................. [Storage Objects: 0]
| o- fileio ............................................. [Storage Objects: 0]
| o- pscsi .............................................. [Storage Objects: 0]
| o- ramdisk ............................................ [Storage Objects: 0]
o- iscsi ........................................................ [Targets: 0]
o- loopback ..................................................... [Targets: 0]
/> /backstores/block create server1storage /dev/vg0/iscsi_storage
/> /iscsi create iqn.2017-06.com.example:stragel
/> ls
o- / ..................................................................... [...]
o- backstores .......................................................... [...]
| o- block .............................................. [Storage Objects: 1]
| | o- server1storage [/dev/vg0/iscsi_storage (996.0MiB) write-thru deactivated]
| o- fileio ............................................. [Storage Objects: 0]
| o- pscsi .............................................. [Storage Objects: 0]
| o- ramdisk ............................................ [Storage Objects: 0]
o- iscsi ........................................................ [Targets: 1]
| o- iqn.2017-06.com.example:stragel ............................... [TPGs: 1]
| o- tpg1 ........................................... [no-gen-acls, no-auth]
| o- acls ...................................................... [ACLs: 0]
| o- luns ...................................................... [LUNs: 0]
| o- portals ................................................ [Portals: 0]
o- loopback ..................................................... [Targets: 0]/> /iscsi/iqn.2017-06.com.example:stragel/tpg1/luns create /backstores/block/server1storage
/> /iscsi/iqn.2017-06.com.example:stragel/tpg1/acls create iqn.2017-06.com.example:server1storagekey
/> /iscsi/iqn.2017-06.com.example:stragel/tpg1/portals create 172.25.254.114
/> exit
在desktop中
[root@localhost ~]# vim /etc/iscsi/initiatorname.iscsi
InitiatorName=iqn.2017-06.com.example:server1storagekey
[root@localhost ~]# iscsiadm -m discovery -t st -p 172.25.254.114
172.25.254.114:3260,1 iqn.2017-06.com.example:stragel
[root@localhost ~]# iscsiadm -m node -T iqn.2017-06.com.example:stragel -p 172.25.254.114 -l
Logging in to [iface: default, target: iqn.2017-06.com.example:stragel, portal: 172.25.254.114,3260] (multiple)
Login to [iface: default, target: iqn.2017-06.com.example:stragel, portal: 172.25.254.114,3260] successful.
[root@localhost ~]# fdisk -l
[root@localhost ~]# fdisk /dev/sda
n
p
wq
[root@localhost ~]# partprobe
[root@localhost ~]# mkfs.xfs /dev/sda
mkfs.xfs: /dev/sda appears to contain a partition table (dos).
mkfs.xfs: Use the -f option to force overwrite.
[root@localhost ~]# mkfs.xfs /dev/sda1
[root@localhost ~]# yum install tree.x86_64 x86_64 -y
[root@localhost ~]# tree -C /var/lib/iscsi/
/var/lib/iscsi/
├── ifaces
├── isns
├── nodes
│ └── iqn.2017-06.com.example:stragel
│ └── 172.25.254.114,3260,1
│ └── default
├── send_targets
│ └── 172.25.254.114,3260
│ ├── iqn.2017-06.com.example:stragel,172.25.254.114,3260,1,default -> /var/lib/iscsi/nodes/iqn.2017-06.com.example:stragel/172.25.254.114,3260,1
│ └── st_config
├── slp
└── static
10 directories, 2 files
挂载
UUID=‘‘ /mnt xfs defaults,_netdev 0 0
{先开启网络再挂载}
删除
umount /mnt
vim /etc/fstab
[root@localhost ~]# iscsiadm -m node -T iqn.2017-06.com.example:stragel -p 172.25.254.114 -u 删除并且登出
Logging out of session [sid: 1, target: iqn.2017-06.com.example:stragel, portal: 172.25.254.114,3260]
Logout of [sid: 1, target: iqn.2017-06.com.example:stragel, portal: 172.25.254.114,3260] successful.
[root@localhost ~]# iscsiadm -m node -T iqn.2017-06.com.example:stragel -p 172.25.254.114 -o delete 删除配置文件
服务端删除
[root@localhost ~]# targetcli
targetcli shell version 2.1.fb34
Copyright 2011-2013 by Datera, Inc and others.
For help on commands, type ‘help‘.
/> clearconfig confirm=True
/> ls
o- / .......................................................................... [...]
o- backstores ............................................................... [...]
| o- block ................................................... [Storage Objects: 0]
| o- fileio .................................................. [Storage Objects: 0]
| o- pscsi ................................................... [Storage Objects: 0]
| o- ramdisk ................................................. [Storage Objects: 0]
o- iscsi ............................................................. [Targets: 0]
o- loopback .......................................................... [Targets: 0]
/>
标签：recognized primary default contain careful
原文地址：http://ybzbfs.blog.51cto.com/12765816/1933552
