一、用戶端安裝iscsi依賴包(所有iscsi用戶端上)
[root@localhost ~]#yum install -y binutils iscsi-initiator-utils xfsprogs
[root@localhost ~]#systemctl restart iscsi
[root@localhost ~]# systemctl enable iscsi
[root@localhost ~]#cat /etc/iscsi/initiatorname.iscsi
InitiatorName=iqn.1994-05.com.redhat:3915324ae53 #檢視本機IQN号 二、服務端建立ISCSI服務
1.建立塊存儲
2.建立一次性組
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3.建立用戶端組
4.建立通路路徑
三、用戶端挂載
1.檢視服務端IP及IQN号
2.檢視存儲伺服器的iscsi是否線上
[root@localhost ~]# iscsiadm -m discovery --type sendtargets --portal 172.16.149.73
172.16.149.73:3260,1 iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293 #确認是否和服務端IQN号一緻 3.登入ISCSI伺服器并設定開機自動挂載
[root@localhost ~]# iscsiadm -m discovery --type sendtargets --portal 172.16.149.73 #發現ISCSI target
172.16.149.73:3260,1 iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293
[root@localhost ~]# iscsiadm -m discovery --type sendtargets --portal 172.16.149.74
172.16.149.74:3260,1 iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293
[root@localhost ~]# iscsiadm -m node -T iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293 -p 172.16.149.73:3260 -l #登入target，iscsiadm -m node -l all 指令可以一次登入是以發現的target
Logging in to [iface: default, target: iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293, portal: 172.16.149.73,3260] (multiple)
Login to [iface: default, target: iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293, portal: 172.16.149.73,3260] successful. #確定出現successful
[root@localhost ~]# iscsiadm -m node -T iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293 -p 172.16.149.74:3260 -l
Logging in to [iface: default, target: iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293, portal: 172.16.149.74,3260] (multiple)
Login to [iface: default, target: iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293, portal: 172.16.149.74,3260] successful.
[root@localhost ~]# iscsiadm -m node -T iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293 -p 172.16.149.73:3260 --op update -n node.startup -v automatic #設定開機自動挂載
[root@localhost ~]# iscsiadm -m node -T iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293 -p 172.16.149.74:3260 --op update -n node.startup -v automatic
[root@localhost ~]# iscsiadm -m session #顯示目前已經建立的連接配接
tcp: [1] 172.16.149.73:3260,1 iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293 (non-flash)
tcp: [2] 172.16.149.74:3260,1 iqn.2020-06.com.xsky:qggcluster.iscsi.118.1f3ecd86026a3293 (non-flash) 4.分區格式化及挂載
檢視存儲空間是否已經顯示在磁盤清單中
對其中任意一塊進行分區
[root@localhost ~]# fdisk /dev/sda #對第一塊磁盤分區
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 0x47180079.
The device presents a logical sector size that is smaller than
the physical sector size. Aligning to a physical sector (or optimal
I/O) size boundary is recommended, or performance may be impacted.
Command (m for help): n #建立分區
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4, default 1): #回車
First sector (2048-629145599, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-629145599, default 629145599):
Using default value 629145599
Partition 1 of type Linux and of size 300 GiB is set
Command (m for help): w #儲存
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@localhost ~]# mkfs.xfs /dev/sda1 #對新分區格式化
meta-data=/dev/sda1 isize=512 agcount=4, agsize=19660736 blks
= sectsz=4096 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=78642944, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=38399, version=2
= sectsz=4096 sunit=1 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@localhost ~]# mkdir /Data #建立挂載目錄
[root@localhost ~]# mount /dev/sda1 /Data/ #挂載
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/qgg_vg1-lv_root 298G 2.4G 296G 1% /
devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 7.8G 8.7M 7.8G 1% /run
tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/vda1 283M 115M 150M 44% /boot
tmpfs 1.6G 0 1.6G 0% /run/user/0
/dev/sda1 300G 33M 300G 1% /Data 5. 設定開機自動挂載
檢視挂載磁盤UUID
[root@localhost ~]# blkid /dev/sda1
/dev/sda1: UUID="897ef05d-cd7e-469e-9886-028a96ba05e1" TYPE="xfs"
[root@localhost ~]# vim /etc/fstab
UUID=897ef05d-cd7e-469e-9886-028a96ba05e1 /Data xfs defaults,_netdev 0 0 #注意：挂載的時候一定要加_netdev參數，否則重新開機會卡住
[root@localhost ~]# umount /Data #測試是否可以自動挂載
[root@localhost ~]# df -h
[root@localhost ~]# mount -a
[root@localhost ~]# df -h 參考文檔：https://blog.csdn.net/jiyiyun/article/details/103798730
"一勞永逸" 的話，有是有的，而 "一勞永逸" 的事卻極少