San's iSCSI NAS share build operation

Lab Environment:

System: centos-6.6

kernel:2.6.32

Target End: scsi-target-utils-1.0.24-16.el6.x86_64

ip:192.168.150.138

Initiator End: iscsi-initiator-utils-6.2.0.873-13.el6.x86_64

ip:192.168.150.139

I. Target-side build storage environment

Add seven hard drives, four blocks for RAID5, three for LVM.

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To load a hard disk dynamically:

LINUX5 Load Mode

echo "scsi add-single-device 0 0 1 0" >/PROC/SCSI/SCSI

linux6 Load Mode

echo "---" >/sys/class/scsi_host/host2/scan

[Email protected] ~]# cat/proc/partitions #查看硬盘被加载

Major Minor #blocks name

8 0 20971520 SDA

8 1 512000 sda1

8 2 20458496 Sda2

253 0 18391040 dm-0

253 1 2064384 dm-1

8 1048576 SDB

8 1048576 SDC

8 1048576 SDD

8 1048576 SDE

8 1048576 SDF

8 1048576 SDG

8 1048576 SDH

1. Do RAID5:

[Email protected] ~]# mdadm-cv/dev/md0-a YES-N3-L5-X1/DEV/SD[B-E]

Mdadm:layout defaults to Left-symmetric

Mdadm:layout defaults to Left-symmetric

Mdadm:chunk size defaults to 512K

Mdadm:size set to 1047552K

Mdadm:defaulting to version 1.2 metadata

Mdadm:array/dev/md0 started.

[Email protected] ~]# mdadm-q/dev/md0

/dev/md0:2046.34mib RAID5 3 devices, 1 spare. Use the Mdadm--detail for more detail.

2. Do LVM:

[[email protected] ~]# Pvcreate/dev/sd[f-h]

Physical volume "/DEV/SDF" successfully created

Physical volume "/DEV/SDG" successfully created

Physical volume "/DEV/SDH" successfully created

[Email protected] ~]# vgcreate dragonvg/dev/sd[f-h]

Volume Group "DRAGONVG" successfully created

[Email protected] ~]# lvcreate-l 2.8g-n DRAGONLV DRAGONVG

Rounding up size to full physical extent 2.80 GiB

Logical volume "Peipeilv" created

Two. Target Side releases iSCSI:

[email protected] ~]# Yum install scsi-target-utils

[[Email protected] ~]# service TGTD start

Booting SCSI target daemon: [OK]

Making a Raid object

[Email protected] ~]# tgtadm-l iscsi-o new-m target-t 1-t iqn.2015-1.dragon.com:raid

Allocating storage space

[Email protected] ~]# tgtadm--lld iscsi-o new-m logicalunit-t 1-l 1-b/dev/md0

Specify the clients that can be accessed

[Email protected] ~]# tgtadm--lld iscsi-o bind-m target-t 1-i 192.168.150.139

[Email protected] ~]# tgtadm--lld iscsi-o bind-m target-t 1-i 192.168.150.130 #可以指定多个访问IP

View the created iSCSI target

[Email protected] ~]# tgtadm-l iscsi-o show-m Target

Target 1:iqn.2015-1.dragon.com:raid

System Information:

Driver:iscsi

State:ready

i_t Nexus Information:

LUN Information:

lun:0

Type:controller

SCSI Id:iet 00010000

SCSI SN:BEAF10

size:0 MB, Block size:1

Online:yes

Removable Media:no

Prevent Removal:no

Readonly:no

Backing store Type:null

Backing store Path:none

Backing Store Flags:

Lun:1

Type:disk

SCSI Id:iet 00010001

SCSI sn:beaf11

size:2145 MB, Block size:512

Online:yes

Removable Media:no

Prevent Removal:no

Readonly:no

Backing store Type:rdwr

Backing store Path:/dev/md0

Backing Store Flags:

Account information:

ACL Information:

192.168.150.139

192.168.150.130

Publish target for LVM

[Email protected] ~]# tgtadm-l iscsi-o new-m target-t 2-t IQN.2015-1.DRAGON.COM:LVM

[Email protected] ~]# tgtadm--lld iscsi-o new-m lu-t 2-l 1-b/DEV/DRAGONVG/DRAGONLV

[Email protected] ~]# tgtadm--lld iscsi-o bind-m target-t 2-i 192.168.150.139

You can also publish the target by configuring/etc/tgt/targets.conf

<target iqn.2015-1.dragon.com:raid>

Backing-store/dev/md0

Initiator-address 192.168.150.139

</target>

<target iqn.2015-1.dragon.com:lvm>

Backing-store/dev/dragonvg/dragonlv

Initiator-address 192.168.150.139

</target>

Three. Client publishing and mounting iSCSI:

[email protected] ~]# Yum install iscsi-initiator-utils lsscsi #安装iscsi-initiator

[[Email protected] ~]# service iSCSI start #启动服务

[Email protected] ~]# iscsiadm-m discovery-t sendtargets-p 192.168.150.138 #查找192. Available objects for 168.150.138 released iSCSI publications

Starting iscsid: [OK]

192.168.150.138:3260,1 Iqn.2015-1.dragon.com:raid

192.168.150.138:3260,1 IQN.2015-1.DRAGON.COM:LVM

[Email protected] ~]# iscsiadm-m node-t iqn.2015-1.dragon.com:raid--login #连接存储对象iqn. 2015-1.dragon.com:raid

Logging in to [Iface:default, Target:iqn.2015-1.dragon.com:raid, portal:192.168.150.138,3260] (multiple)

Login to [Iface:default, Target:iqn.2015-1.dragon.com:raid, portal:192.168.150.138,3260] successful.

[Email protected] ~]# iscsiadm-m node-t iqn.2015-1.dragon.com:lvm--login #连接存储对象iqn. 2015-1.DRAGON.COM:LVM

Logging in to [Iface:default, TARGET:IQN.2015-1.DRAGON.COM:LVM, portal:192.168.150.138,3260] (multiple)

Login to [Iface:default, TARGET:IQN.2015-1.DRAGON.COM:LVM, portal:192.168.150.138,3260] successful.

[Email protected] ~]# LSSCSI #可以看到本机多了两块虚拟硬盘sdb和sdc

[1:0:0:0] CD/DVD Necvmwar VMware IDE CDR10 1.00/dev/sr0

[2:0:0:0] disk vmware, VMware Virtual S 1.0/DEV/SDA

[3:0:0:0] Storage IET Controller 0001-

[3:0:0:1] Disk IET virtual-disk 0001/dev/sdb

[4:0:0:0] Storage IET Controller 0001-

[4:0:0:1] Disk IET virtual-disk 0001/DEV/SDC

Partitioning and formatting

[Email protected] ~]# Fdisk/dev/sdb

N

P

1

[Enter]

[Enter]

W

[Email protected] ~]# FDISK/DEV/SDC

N

P

1

[Enter]

[Enter]

W

[Email protected] ~]# mkfs-t EXT3/DEV/SDB1

[Email protected] ~]# mkfs-t EXT3/DEV/SDC1

Mount succeeded

[Email protected] ~]# Mkdir/test1

[Email protected] ~]# Mkdir/test2

[Email protected] ~]# Mount/dev/sdb1/test1

[Email protected] ~]# Mount/dev/sdc1/test2

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This article is from the "Dragon Love Xue qi" blog, please make sure to keep this source http://dragon123.blog.51cto.com/9152073/1599412

San's iSCSI NAS share build operation