Centos6.6 mounts iscsi storage and centos6.6 mounts iscsi
To solve the company's backup and log problems, we have specially set up a backup server and prepared 8 TB storage space for use. Now we will mount iscsi storage on the client.
1. The client installs the iscsi installation package and starts
Yuminstall binutils iscsi-initiator-utils kmod-xfs xfsprogs
Service iscsi start
Kmod-xfs xfsprogs is the component of the xfs file system.
2. Configure initiatiorname
Add the target name to initiatorname. iscsi.
Vim/etc/iscsi/initiatorname. iscsi
InitiatorName = iqn.1994-05.com. redhat: 677b9f2936f8
3. target found
[root@usvr119 data]# iscsiadm -m discovery -t sendtargets -p 192.168.3.16192.168.3.16:3260,1 iqn.2001-05.com.equallogic:0-af1ff6-dce2985d0-95e004e6a155508d-bak-disk01
4. log on to the target
Iscsiadm-m node-T iqn.2001-05.com. equallogic: 0-af1ff6-dce2985d0-95e004e6a155508d-bak-disk01-p 192.168.3.16: 3260 -- login
5. Check whether the storage is mounted.
[root@usvr119 data]# fdisk -lDisk /dev/sdb: 8796.1 GB, 8796100362240 bytes255 heads, 63 sectors/track, 1069398 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytes
6. Partition with parted
Parted/dev/sdb
Mklabel gpt: Set the partition to gpt.
Mkpart primary 0% 100% divides the space into a partition
Print
Quit
Note: fdisk supports disks smaller than 2 TB. parted is required for disks larger than 2 TB.
7. format the partition
Mkfs. ext4-T largefile/dev/sdb1
Note:-T largefile is much faster to format large files.
View the uuid of a disk
Blkid/dev/sdb1
/Dev/sdb1: UUID = "27f0ec37-d7ab-4c93-b9e3-cd09ddd9e340" TYPE = "ext4"
8. Attach a hard disk
Mount-t ext4/dev/sdb1/data
9. automatic mounting upon startup
Log on to/etc/rc. local first.
Vim/etc/rc. lcoal
Iscsiadm-m node-T iqn.2001-05.com. equallogic: 0-af1ff6-dce2985d0-95e004e6a155508d-bak-disk01-p 192.168.3.16: 3260 -- login
Vim/etc/fstab
UUID = 27f0ec37-d7ab-4c93-b9e3-cd09ddd9e340/data ext4 defaults 0 0
Note: The first 0 is about dump, and the second 0 is about fsck. After the start, fsck/dev/sdb1 is displayed, in this case, the startup fails because no mounting is available.
10. iptables settings
If the firewall is enabled for our server, we need to release iscsi port 3260.
/Sbin/iptables-a input-I eth0-p tcp-s 192.168.3.16-m multiport -- dport 3260-m comment -- comment "iscsi target"-j ACCEPT