On Thu, Nov 19, 2009 at 02:04:32PM -0600, Mike Christie wrote: >xi qihao wrote: >> Hi all: >> >> I a newbie of iscsi. Now I use two PC to test software iscsi. >> My problem is how to fix connect of iscsi target? >> >> The below are the detail: >> SAN: iscsi target device ip: 192.168.3.2 >> master: iscsi initiator ip: 192.168.3.124 >> >> 1. configure on SAN >> 1)install iscsi-target >> [r...@san ~]# yum -y install scsi-target-utils >> >> 2)create two files >> [r...@san ~]# dd if=/dev/zero of=/lun/lun1.img bs=1M count=4096 >> [r...@san ~]# dd if=/dev/zero of=/lun/lun2.img bs=1M count=4096 >> >> 3)add the content to /etc/tgt/targets.conf >> <target iqn.2009-09.com.test:sa-1:tgtd> >> backing-store /lun/lun1.img >> initiator-address 192.168.3.124 >> </target> >> <target iqn.2009-09.com.test:sa-2:tgtd> >> backing-store /lun/lun2.img >> initiator-address 192.168.3.124 >> </target> >> >> 4) restart tgt service >> [r...@san tgt]# /etc/init.d/tgtd restart >> >> 5) check iscsi target >> [r...@san tgt]# tgtadm --op show --mode target >> Target 1: iqn.2009-09.com.test:sa-1:tgtd >> System information: >> Driver: iscsi >> State: ready >> I_T nexus information: >> I_T nexus: 8 >> Initiator: iqn.1994-05.com.redhat:155e0ebbe8c >> Connection: 0 >> IP Address: 192.168.3.124 >> LUN information: >> LUN: 0 >> Type: controller >> SCSI ID: deadbeaf1:0 >> SCSI SN: beaf10 >> Size: 0 MB >> Online: Yes >> Removable media: No >> Backing store: No backing store >> LUN: 1 >> Type: disk >> SCSI ID: deadbeaf1:1 >> SCSI SN: beaf11 >> Size: 4295 MB >> Online: Yes >> Removable media: No >> Backing store: /lun/lun1.img >> Account information: >> ACL information: >> 192.168.3.124 >> Target 2: iqn.2009-09.com.test:sa-2:tgtd >> System information: >> Driver: iscsi >> State: ready >> I_T nexus information: >> I_T nexus: 7 >> Initiator: iqn.1994-05.com.redhat:155e0ebbe8c >> Connection: 0 >> IP Address: 192.168.3.124 >> LUN information: >> LUN: 0 >> Type: controller >> SCSI ID: deadbeaf2:0 >> SCSI SN: beaf20 >> Size: 0 MB >> Online: Yes >> Removable media: No >> Backing store: No backing store >> LUN: 1 >> Type: disk >> SCSI ID: deadbeaf2:1 >> SCSI SN: beaf21 >> Size: 4295 MB >> Online: Yes >> Removable media: No >> Backing store: /lun/lun2.img >> Account information: >> ACL information: >> 192.168.3.124 >> >> 2 configure iscsi initiator on master >> 1) install >> [r...@master ~]# rpm -ql iscsi-initiator-utils >> >> 2) discovery iscsi target >> [r...@master scsi]# iscsiadm -m discovery -t sendtargets -p 192.168.3.2 >> 192.168.3.2:3260,1 iqn.2009-09.com.test:sa-1:tgtd >> 192.168.3.2:3260,1 iqn.2009-09.com.test:sa-2:tgtd >> >> 3) check >> [r...@master scsi]# sfdisk -s >> /dev/sda: 78150744 >> /dev/sdb: 4194304 >> /dev/sdc: 4194304 >> total: 86539352 blocks >> >> [r...@master scsi]# fdisk -l >> >> Disk /dev/sdb: 4294 MB, 4294967296 bytes >> Disk /dev/sdc: 4294 MB, 4294967296 bytes >> >> >> My problem is how to setup fix connect on master after reboot? >> ex: lun1.img /dev/sdb lun2.img /dev/sdc >> if lun1.img does not exist, lun2.img is still /dev/sdc. >> How can I configure it? I should set tgt or initiator? >> > >What distro are you using? If you look in /dev/disk/by-id there should >be names that are persistent across reboots.
It is CentOS (2.6.18-128.1.16.el5xen) x86_64 [r...@master ~]# ls -l /dev/disk/by-id/ total 0 lrwxrwxrwx 1 root root 9 Nov 20 11:00 scsi-SATA_WDC_WD800BD-22M_WD-WMAM9YU42742 -> ../../sda lrwxrwxrwx 1 root root 10 Nov 20 11:00 scsi-SATA_WDC_WD800BD-22M_WD-WMAM9YU42742-part1 -> ../../sda1 lrwxrwxrwx 1 root root 10 Nov 20 11:00 scsi-SATA_WDC_WD800BD-22M_WD-WMAM9YU42742-part2 -> ../../sda2 lrwxrwxrwx 1 root root 9 Nov 20 11:01 scsi-S_beaf11 -> ../../sdc lrwxrwxrwx 1 root root 10 Nov 20 11:01 scsi-S_beaf11-part1 -> ../../sdc1 lrwxrwxrwx 1 root root 9 Nov 20 11:01 scsi-S_beaf21 -> ../../sdb you mean scsi-S_beaf are persistent? -- You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-is...@googlegroups.com. To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/open-iscsi?hl=.
