You can use either the sanlun command, the iscsiadm command, or the iscsi command to view the LUNs configured on your Linux host. The examples in this section show the type of output you see if you run one of these commands on your Linux operating system in an environment running VxDMP.
The tool you use depends on your version of Linux and what you would like to view. The sanlun command displays the host device names and the LUNs to which they are mapped. The iscsiadm command lists the available storage systems and LUNs.
The following sections provide examples of the type of output you see if you run one of these commands in a specific environment: for example, with iSCSI and DM-Multipath on Red Hat Enterprise Linux 5 series:
This example shows sample output from the sanlun lun show all command when it is issued in a Host Utilities environment that is running Data ONTAP operating in 7-Mode with FC and Veritas Storage Foundation.
# sanlun lun show all controller(7mode)/ device host lun vserver(Cmode) lun-pathname filename adapter protocol size mode -------------------------------------------------------------------------------- fas3040-201-25 /vol/vol1/lun1 /dev/sdu host1 FCP 5g 7 fas3040-201-25 /vol/vol2/lun2 /dev/sdt host1 FCP 5g 7 fas3040-201-25 /vol/vol3/lun3 /dev/sds host1 FCP 5g 7
If you execute the sanlun lun show all command in a Data ONTAP operating in 7-Mode FC environment, you get output similar to the following:
# sanlun lun show -p ONTAP Path: fas6030-201-71:/vol/vol1/lun1 LUN: 12 LUN Size: 7g Controller_CF_State: Cluster Enabled Controller Partner: fas6030-201-70 Mode: 7 DMP NODE: fas60300_9 Multipath Provider: Veritas --------- ---------- ------- ------------ ------------------------------------- host controller controller path path /dev/ host target state type node adapter port --------- ---------- ------- ------------ ------------------------------------- up secondary sdn host3 2a up primary sdbg host3 2a up primary sdes host4 2b up secondary sdcz host4 2b
This example shows sample output from the vxdisk list command when it is issued in a Host Utilities environment that is running the FC protocol. The vxdisk list command displays the LUNs on the VxVM disks:
# vxdisk list DEVICE TYPE DISK GROUP STATUS fas20200_0 auto:cdsdisk data_dg01 data_dg online thinrclm shared fas20200_1 auto:cdsdisk data_dg02 data_dg online thinrclm shared fas20200_2 auto:cdsdisk data_dg113 data_dg online thinrclm shared fas20200_3 auto:cdsdisk data_dg180 data_dg online thinrclm shared
This example shows sample output from the sanlun lun show all command when it is issued in a Host Utilities environment that is running Data ONTAP operating in 7-Mode with iSCSI and Veritas Storage Foundation.
# sanlun lun show all controller(7mode)/ device host lun vserver(Cmode) lun-pathname filename adapter protocol size mode ------------------------------------------------------------------------------- fas3040-201-24 /vol/vol1/lun1 /dev/sdb host6 iSCSI 10m 7 fas3040-201-24 /vol/vol2/lun2 /dev/sdb host6 iSCSI 10m 7 fas3040-201-24 /vol/vol3/lun3 /dev/sdb host6 iSCSI 10m 7
If you execute the sanlun lun show all command in a Data ONTAP operating in 7-Mode iSCSI environment, you get output similar to the following:
# ./sanlun lun show -p ONTAP Path: fas6030-201-70:/vol/vol1/lun1 LUN: 21 LUN Size: 7g Controller_CF_State: Cluster Enabled Controller Partner: fas6030-201-71 Mode: 7 DMP NODE: fas60300_44 Multipath Provider: Veritas --------- ---------- ------- ------------ -------------------------------- host controller controller path path /dev/ host target state type node adapter port --------- ---------- ------- ------------ -------------------------------- up iscsi sdaq host6 10.72.201.24 up iscsi sdbp host7 10.72.201.25
This example shows sample output from the iscsiadm command when it is issued in a Host Utilities environment that is running the iSCSI protocol and Veritas Storage Foundation on a Red Hat Enterprise Linux 5 series system.
# iscsiadm -m session -P 3 -r 2
Target: iqn.1992-08.com.netapp:sn.101183016
Current Portal: 10.72.199.71:3260,1001
Persistent Portal: 10.72.199.71:3260,1001
**********
Interface:
**********
Iface Name: default
Iface Transport: tcp
Iface Initiatorname: iqn.1994-05.com.redhat:5e3e11e0104d
Iface IPaddress: 10.72.199.119
Iface HWaddress: default
Iface Netdev: default
SID: 2
iSCSI Connection State: LOGGED IN
iSCSI Session State: Unknown
Internal iscsid Session State: NO CHANGE
************************
Negotiated iSCSI params:
************************
HeaderDigest: None
DataDigest: None
MaxRecvDataSegmentLength: 131072
MaxXmitDataSegmentLength: 65536
FirstBurstLength: 65536
MaxBurstLength: 65536
ImmediateData: Yes
InitialR2T: No
MaxOutstandingR2T: 1
************************
Attached SCSI devices:
************************
Host Number: 4 State: running
scsi4 Channel 00 Id 0 Lun: 0
Attached scsi disk sdc State: running
scsi4 Channel 00 Id 0 Lun: 1
Attached scsi disk sde State: running
scsi4 Channel 00 Id 0 Lun: 2
Attached scsi disk sdg State: running
scsi4 Channel 00 Id 0 Lun: 3
Attached scsi disk sdi State: running
scsi4 Channel 00 Id 0 Lun: 4
Attached scsi disk sdk State: running
scsi4 Channel 00 Id 0 Lun: 5
Attached scsi disk sdm State: running
scsi4 Channel 00 Id 0 Lun: 6
Attached scsi disk sdp State: running
scsi4 Channel 00 Id 0 Lun: 7
Attached scsi disk sdq State: running
This example shows sample output from the iscsiadm command when it is issued in a Host Utilities environment that is running the iSCSI protocol and Veritas Storage Foundation on a SUSE Linux Enterprise Server 10 or 11 system.
# iscsiadm -m session --sid=N -P 3
iSCSI Transport Class version 2.0-724
iscsiadm version 2.0-868
Target: iqn.1992-08.com.netapp:sn.101180456
Current Portal: 10.72.199.144:3260,1001
Persistent Portal: 10.72.199.144:3260,1001
**********
Interface:
**********
Iface Name: default
Iface Transport: tcp
Iface Initiatorname:iqn.1996-04.de.suse:lnx.200.109
Iface IPaddress: 10.72.200.109
Iface HWaddress: default
Iface Netdev: default
SID: 1
iSCSI Connection State: LOGGED IN
iSCSI Session State: Unknown
Internal iscsid Session State: NO CHANGE
************************
Negotiated iSCSI params:
************************
HeaderDigest: CRC32C
DataDigest: None
MaxRecvDataSegmentLength: 131072
MaxXmitDataSegmentLength: 65536
FirstBurstLength: 65536
MaxBurstLength: 65536
ImmediateData: Yes
InitialR2T: No
MaxOutstandingR2T: 1
************************
Attached SCSI devices:
************************
Host Number: 47 State: running
scsi47 Channel 00 Id 0 Lun: 2
Attached scsi disk sdj State: running
scsi47 Channel 00 Id 0 Lun: 1
Attached scsi disk sdf State: running
scsi47 Channel 00 Id 0 Lun: 0
Attached scsi disk sdb State: running