Set up iscsi storage in Centos6.5

Set up iscsi storage in Centos6.5

To build a vsphere environment, you need to use network storage to simulate applications in the production environment. Now, a 800 GB hard drive server is configured as iscsi storage.

The iscsi server is as follows:

Ip: 10.11.68.10

Hard Disk: in addition to basic server applications, GB is used for storage. Thanks to the lvm, we can directly create a logical volume.

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1. [Root @ iscsi10 ~] # Vgs
2. VG # PV # LV # SNAttrVSizeVFree
3. Vg_iscsi10110wz -- n-808.45g730.32g

Lvcreate-L 500G-n iscsi_test vg_iscsi10

In this way, the iscsi storage space is available. Let's configure the storage.

1. Install scsi-target-utils on the server

Yum instal scsi-target-utils-y

2. Configure the storage device

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1. [Root @ iscsi10 ~] # Vim/etc/tgt/targets. conf
2. Targetiqn.2008-09.com. example: iscsidisk>
3. Backing-store/dev/vg_iscsi10/iscsi_test
4. Initiator-address10.11.68.11
5. Initiator-address10.11.68.12
6. Initiator-address10.11.68.13
7. </Target>

The target definition format is as follows:

Iqn. yyyy-mm. <reversed domain name>: target_name

Backing-store: virtual device. This parameter is generally used preferentially.

Direct-store: the actual device. The entire disk is used for iscsi devices.

Initiator-address: used to restrict client sources using this target

Incominguser: the client can use the user name and password for storage.

After startup, you can check whether the storage has been allocated.

Service tgtd start

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1. [Root @ iscsi10 ~] # Tgt-admin-s
2. Target1: iqn.2008-09.com. example: iscsidisk
3. Systeminformation:
4. Driver: iscsi
5. State: ready
6. I _Tnexusinformation:
7. LUNinformation:
8. LUN: 0
9. Type: controller
10. SCSIID: IET00010000
11. SCSISN: beaf10
12. Size: 0 MB, Blocksize: 1
13. Online: Yes
14. Removablemedia: No
15. Preventremoval: No
16. Readonly: No
17. Backingstoretype: null
18. Backingstorepath: None
19. Backingstoreflags:
20. LUN: 1
21. Type: disk
22. SCSIID: IET00010001
23. SCSISN: beaf11
24. Size: 536871 MB, Blocksize: 512
25. Online: Yes
26. Removablemedia: No
27. Preventremoval: No
28. Readonly: No
29. Backingstoretype: rdwr
30. Backingstorepath:/dev/vg_iscsi10/iscsi_test
31. Backingstoreflags:
32. Accountinformation:
33. ACLinformation:
34. 10.11.68.11
35. 10.11.68.12
36. 10.11.68.13

3. Add the boot item

Chkconfig tgtd on

4. If the server has firewall settings, open the corresponding port. The iscsi port is 3260.

Iptables-a input-p tcp-s 10.0.0.0/8 -- dport 3260-j ACCEPT