Centos 安裝配置iscsi

標籤：

在測試oracle rac的時候用iscsi來類比磁陣的(真的磁陣需要多重路徑軟體)，簡單的記錄下

#scsi serveryum install scsi-target-utilsservice tgtd startchkconfig tgtd onmkdir /srv/iscsidd if=/dev/zero of=/srv/iscsi/disk01.img bs=1M count=200

 

#配置虛擬磁碟vi /etc/tgt/targets.conf#backing-store (虛擬裝置)#direct-store (實際的裝置)<target iqn.2014-11.dev.iscsi-target:iscsidisk>backing-store /srv/iscsi/disk01.imginitiator-address 192.168.55.0/24incominguser iscsiadm iscsiadm123write-cache off</target>

 

[[email protected] ~]# tgt-admin -showTarget 1: iqn.2014-11.dev.iscsi-target:iscsidiskSystem information:Driver: iscsiState: readyI_T nexus information:LUN information:LUN: 0Type: controllerSCSI ID: IET 00010000SCSI SN: beaf10Size: 0 MB, Block size: 1Online: YesRemovable media: NoPrevent removal: NoReadonly: NoBacking store type: nullBacking store path: NoneBacking store flags: LUN: 1Type: diskSCSI ID: IET 00010001SCSI SN: beaf11Size: 210 MB, Block size: 512Online: YesRemovable media: NoPrevent removal: NoReadonly: NoBacking store type: rdwrBacking store path: /srv/iscsi/disk1.imgBacking store flags: Account information:ACL information:192.168.55.0/24[[email protected] ~]# tgt-admin --showTarget 1: iqn.2014-11.dev.iscsi-target:iscsidiskSystem information:Driver: iscsiState: readyI_T nexus information:I_T nexus: 5Initiator: iqn.1994-05.com.redhat:1e12cf823426Connection: 0IP Address: 192.168.55.159LUN information:LUN: 0Type: controllerSCSI ID: IET 00010000SCSI SN: beaf10Size: 0 MB, Block size: 1Online: YesRemovable media: NoPrevent removal: NoReadonly: NoBacking store type: nullBacking store path: NoneBacking store flags: Account information:ACL information:ALL

 

#scsi client　installyum install iscsi-initiator-utilschkconfig iscsid onchkconfig iscsi on/etc/init.d/iscsi start/etc/init.d/iscsid start

 

#add#vi /etc/iscsi/iscsid.confnode.session.auth.username = iscsiadmnode.session.auth.password = iscsiadm123#修改用戶端名字vi /etc/iscsi/initiatorname.iscsi#InitiatorName=iqn.1994-05.com.redhat:1e12cf823426InitiatorName=iqn.2014-11.dev.iscsi-initiator:initiator#發現iscsiadm -m discovery -t sendtargets -p 192.168.55.158192.168.55.158:3260,1 iqn.2014-11.dev.iscsi-target:iscsidisk#登陸iscsiadm -m node -T iqn.2014-11.dev.iscsi-target:iscsidisk -p 192.168.55.158:3260 --loginLogging in to [iface: default, target: iqn.2014-11.dev.iscsi-target:iscsidisk, portal: 192.168.55.158,3260] (multiple)Login to [iface: default, target: iqn.2014-11.dev.iscsi-target:iscsidisk, portal: 192.168.55.158,3260] successful.#退出iscsiadm -m node -T iqn.2014-11.dev.iscsi-target:iscsidisk -p 192.168.55.158:3260 --logoutLogging out of session [sid: 1, target: iqn.2014-11.dev.iscsi-target:iscsidisk, portal: 192.168.55.158,3260]Logout of [sid: 1, target: iqn.2014-11.dev.iscsi-target:iscsidisk, portal: 192.168.55.158,3260] successful. #查看串連iscsiadm -m sessiontcp: [5] 192.168.55.158:3260,1 iqn.2014-11.dev.iscsi-target:iscsidisk (non-flash)

 

#查看[[email protected] ~]# fdisk -lDisk /dev/sda: 12.9 GB, 12884901888 bytes255 heads, 63 sectors/track, 1566 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x0004c11aDevice Boot Start End Blocks Id System/dev/sda1 * 1 64 512000 83 LinuxPartition 1 does not end on cylinder boundary./dev/sda2 64 1567 12069888 8e Linux LVMDisk /dev/mapper/VolGroup-lv_root: 11.1 GB, 11068768256 bytes255 heads, 63 sectors/track, 1345 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x00000000Disk /dev/mapper/VolGroup-lv_swap: 1287 MB, 1287651328 bytes255 heads, 63 sectors/track, 156 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x00000000Disk /dev/sdb: 209 MB, 209715200 bytes7 heads, 58 sectors/track, 1008 cylindersUnits = cylinders of 406 * 512 = 207872 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk identifier: 0x00000000

 

Centos 安裝配置iscsi