linux 安装iscsi包
[root@localhost ~]# yum list | grep iscs iscsi-initiator-utils.x86_64 6.2.0.874-7.el7 cr iscsi-initiator-utils-iscsiuio.x86_64 6.2.0.874-7.el7 cr libiscsi.x86_64 1.9.0-7.el7 cr libvirt-daemon-driver-storage-iscsi.x86_64 [root@localhost ~]# yum install iscsi-initiator-utils 已加载插件：fastestmirror Loading mirror speeds from cached hostfile 正在解决依赖关系 --> 正在检查事务 ---> 软件包 iscsi-initiator-utils.x86_64.0.6.2.0.874-7.el7 将被 安装 --> 正在处理依赖关系 iscsi-initiator-utils-iscsiuio >= 6.2.0.874-7.el7，它被软件包 iscsi-initiator-utils-6.2.0.874-7.el7.x86_64 需要 --> 正在检查事务 ---> 软件包 iscsi-initiator-utils-iscsiuio.x86_64.0.6.2.0.874-7.el7 将被 安装 --> 解决依赖关系完成 依赖关系解决 ======================================================================================================================================================================= Package 架构 版本 源 大小 ======================================================================================================================================================================= 正在安装: iscsi-initiator-utils x86_64 6.2.0.874-7.el7 cr 422 k 为依赖而安装: iscsi-initiator-utils-iscsiuio x86_64 6.2.0.874-7.el7 cr 90 k 事务概要 ======================================================================================================================================================================= 安装 1 软件包 (+1 依赖软件包) 总下载量：512 k 安装大小：2.6 M Is this ok [y/d/N]: y Downloading packages: ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- 总计 17 MB/s | 512 kB 00:00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction 警告：RPM 数据库已被非 yum 程序修改。 正在安装 : iscsi-initiator-utils-6.2.0.874-7.el7.x86_64 1/2 正在安装 : iscsi-initiator-utils-iscsiuio-6.2.0.874-7.el7.x86_64 2/2 验证中 : iscsi-initiator-utils-iscsiuio-6.2.0.874-7.el7.x86_64 1/2 验证中 : iscsi-initiator-utils-6.2.0.874-7.el7.x86_64 2/2 已安装: iscsi-initiator-utils.x86_64 0:6.2.0.874-7.el7 作为依赖被安装: iscsi-initiator-utils-iscsiuio.x86_64 0:6.2.0.874-7.el7 完毕！ [root@localhost ~]# systemctl enable iscsi
[root@localhost ~]# cat /etc/iscsi/initiatorname.iscsi
InitiatorName=iqn.1994-05.com.redhat:b5f8f023e12e
查看linux iqn存储上面配置映射
存储划分50t
发现存储映射，
[root@localhost ~]# iscsiadm -m discovery -t sendtargets -p 192.168.130.101:3260 192.168.130.101:3260,1 iqn.2002-09.com.lenovo:thinksystem.6d039ea00017d07900000000607eb8a4 [fe80:0000:0000:0000:d239:eaff:fe1c:f4d5]:3260,1 iqn.2002-09.com.lenovo:thinksystem.6d039ea00017d07900000000607eb8a4 192.168.131.101:3260,1 iqn.2002-09.com.lenovo:thinksystem.6d039ea00017d07900000000607eb8a4 192.168.130.102:3260,2 iqn.2002-09.com.lenovo:thinksystem.6d039ea00017d07900000000607eb8a4 192.168.131.102:3260,2 iqn.2002-09.com.lenovo:thinksystem.6d039ea00017d07900000000607eb8a4
连接存储
[root@localhost ~]# iscsiadm -m node -T iqn.2002-09.com.lenovo:thinksystem.6d039ea00017d07900000000607eb8a4 -p 192.168.130.101 -l Logging in to [iface: default, target: iqn.2002-09.com.lenovo:thinksystem.6d039ea00017d07900000000607eb8a4, portal: 192.168.130.101,3260] (multiple) Login to [iface: default, target: iqn.2002-09.com.lenovo:thinksystem.6d039ea00017d07900000000607eb8a4, portal: 192.168.130.101,3260] successful. [root@localhost ~]# fdisk -l WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion. 磁盘 /dev/sda：3998.0 GB, 3997997989888 字节，7808589824 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：65536 字节 / 131072 字节 磁盘标签类型：gpt Disk identifier: DAAB1D88-0795-4EC3-89D7-2171BDD4AB12 # Start End Size Type Name 1 2048 1026047 500M EFI System EFI System Partition 2 1026048 2050047 500M Microsoft basic 3 2050048 7808587775 3.7T Linux LVM 磁盘 /dev/mapper/centos-root：214.7 GB, 214748364800 字节，419430400 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：65536 字节 / 131072 字节 磁盘 /dev/mapper/centos-swap：17.2 GB, 17179869184 字节，33554432 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：65536 字节 / 131072 字节 磁盘 /dev/mapper/centos-ava_app：3765.0 GB, 3765016985600 字节，7353548800 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：65536 字节 / 131072 字节 磁盘 /dev/sdb：8095 MB, 8095006720 字节，15810560 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：512 字节 / 512 字节 磁盘标签类型：dos 磁盘标识符：0xcad4ebea 设备 Boot Start End Blocks Id System /dev/sdb4 * 256 15810559 7905152 b W95 FAT32 WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion. 磁盘 /dev/sdc：54975.6 GB, 54975581388800 字节，107374182400 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 4096 字节 I/O 大小(最小/最佳)：4096 字节 / 4096 字节 磁盘标签类型：gpt Disk identifier: E8286D05-FA93-4CE0-82F2-573F930EB840 # Start End Size Type Name 1 34 107374180447 50T Microsoft basic primary Partition 1 does not start on physical sector boundary. 磁盘 /dev/sdd：20 MB, 20971520 字节，40960 个扇区 Units = 扇区 of 1 * 512 = 512 bytes 扇区大小(逻辑/物理)：512 字节 / 512 字节 I/O 大小(最小/最佳)：512 字节 / 512 字节 [root@localhost ~]#
存储空间上次分过区了，这里显示有一个主分区。
如果是没分区的话，可以使用parted进行分区（设立不介绍分区步骤了，参考parted 命令）
挂载分区，设置开机自动挂载
[root@localhost ~]# mkdir /DATA [root@localhost ~]# mount /dev/sdc sdc sdc1 [root@localhost ~]# mount /dev/sdc1 /DATA [root@localhost ~]# vi /etc/fstab [root@localhost ~]# cat /etc/fstab # # /etc/fstab # Created by anaconda on Mon Apr 26 10:27:26 2021 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info # /dev/mapper/centos-root / xfs defaults 0 0 /dev/sdc1 /DATA xfs defaults 0 0 /dev/mapper/centos-ava_app /ava_app xfs defaults 0 0 UUID=c6488b46-0004-4511-9fa1-3fbe2bcdfe40 /boot xfs defaults 0 0 UUID=50D8-7F59 /boot/efi vfat umask=0077,shortname=winnt 0 0 /dev/mapper/centos-swap swap swap defaults 0 0 [root@localhost ~]#
重启后会失败提示如下：
参考博客：https://blog.csdn.net/jiyiyun/article/details/103798730
解决方法，删掉fstab里面的新增内容后，重新注册iscsi，重新配置开机自动挂载iscsi磁盘，操作步骤如下：
[root@localhost ~]# iscsiadm -m node -T iqn.2002-09.com.lenovo:thinksystem.6d039ea00017d07900000000607eb8a4 -p 192.168.130.101:3260 --op update -n node.startup -v automatic [root@localhost ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 3.7T 0 disk ├─sda1 8:1 0 500M 0 part /boot/efi ├─sda2 8:2 0 500M 0 part /boot └─sda3 8:3 0 3.7T 0 part ├─centos-root 253:0 0 200G 0 lvm / ├─centos-swap 253:1 0 16G 0 lvm [SWAP] └─centos-ava_app 253:2 0 3.4T 0 lvm /ava_app sdb 8:16 0 50T 0 disk └─sdb1 8:17 0 50T 0 part sdc 8:32 0 20M 0 disk [root@localhost ~]#
[root@localhost ~]# mount /dev/sdb1 /DATA/
[root@localhost ~]# cat /etc/fstab
#
# /etc/fstab
# Created by anaconda on Mon Apr 26 10:27:26 2021
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs defaults 0 0
/root/CentOS-7-x86_64-DVD-1804.iso /usbiso iso9660 defaults,ro,loop 0 0
UUID=16d940dc-0d29-4dd1-a652-f40efc83a492 /DATA ext4 defaults,_netdev 0 0
/dev/mapper/centos-ava_app /ava_app xfs defaults 0 0
UUID=c6488b46-0004-4511-9fa1-3fbe2bcdfe40 /boot xfs defaults 0 0
UUID=50D8-7F59 /boot/efi vfat umask=0077,shortname=winnt 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
[root@localhost ~]#
[root@localhost ~]# df -T 文件系统 类型 1K-块 已用 可用 已用% 挂载点 /dev/mapper/centos-root xfs 209611776 5435500 204176276 3% / devtmpfs devtmpfs 32627156 0 32627156 0% /dev tmpfs tmpfs 32639532 0 32639532 0% /dev/shm tmpfs tmpfs 32639532 10596 32628936 1% /run tmpfs tmpfs 32639532 0 32639532 0% /sys/fs/cgroup /dev/sda2 xfs 508416 130148 378268 26% /boot /dev/sda1 vfat 511720 10008 501712 2% /boot/efi /dev/loop0 iso9660 4364408 4364408 0 100% /usbiso /dev/mapper/centos-ava_app xfs 3674977024 33840 3674943184 1% /ava_app /dev/sdb1 ext4 53473275824 20 50788904912 1% /DATA tmpfs tmpfs 6527908 0 6527908 0% /run/user/0 [root@localhost ~]#
这里重启后我拔出了系统安装u盘，iscsi分区变成了sdb1，防止重启后分区盘符漂移，这里使用uuid挂载
[root@localhost ~]# blkid /dev/mapper/centos-root: UUID="1c857009-cf25-43dd-9e28-903bb8586b64" TYPE="xfs" /dev/sdb3: UUID="IHCc3d-1MO0-dAzB-ekoZ-pxrp-eR0Q-Bgd1qu" TYPE="LVM2_member" PARTUUID="192f9fb9-542a-4599-8e49-f6d2559bc678" /dev/sdb1: SEC_TYPE="msdos" UUID="D5FD-26B6" TYPE="vfat" PARTLABEL="EFI System Partition" PARTUUID="bad4e1f5-6923-471c-bc54-5b4c91abd22f" /dev/sdb2: UUID="af2a8d27-9f3a-4f83-8952-937ee1f03536" TYPE="xfs" PARTUUID="a880b557-e31a-4fa0-808b-6fd432c8ded6" /dev/sda1: UUID="9679951a-cc96-4c21-93ca-ee29f4aab2e7" TYPE="ext4" PARTLABEL="primary" PARTUUID="80c2e28f-9e2e-4079-a169-1e3fd7288ffc" /dev/mapper/centos-swap: UUID="84cd5ac5-9a99-4430-86fd-be41cd38af2a" TYPE="swap" /dev/sdc4: LABEL="CentOS 7 x8" UUID="B4FE-5315" TYPE="vfat" /dev/sdd1: UUID="34583c79-2cda-46bf-b885-91e88b111d83" TYPE="ext4" [root@localhost ~]#