Get the iSCSI iqn of an ESX(i) using vSphere CLI
When you are trying to configure iSCSI of and ESX(i) server from the command line is clear that at some point you are going to need the iqn. Of course you can use the vSphere Client to get the iqn but the Unix Geek inside me really wants to do it from the shell.
After a small research through the vSphere CLI documentation and several blogs I found this post by Jon Owings (@2vcps).
First list the SCSI devices available in the system to get the iSCSI hba.
[root@esx02 ~]# esxcfg-scsidevs -a
vmhba0 mptspi link-n/a pscsi.vmhba0 (0:0:16.0) LSI Logic / Symbios Logic LSI Logic Parallel SCSI Controller
vmhba1 ata_piix link-n/a ide.vmhba1 (0:0:7.1) Intel Corporation Virtual Machine Chipset
vmhba32 ata_piix link-n/a ide.vmhba32 (0:0:7.1) Intel Corporation Virtual Machine Chipset
vmhba33 iscsi_vmk online iscsi.vmhba33 iSCSI Software Adapter
[root@esx02 ~]#
After that Jon uses the command vmkiscsi-tool
to get the iqn.
[root@esx02 ~]# vmkiscsi-tool -I -l vmhba33
iSCSI Node Name: iqn.1998-01.com.vmware:esx02-42b0f47e
[root@esx02 ~]#
Beauty, isn’t it? But I found one glitch. This method is done from the ESX root shell but how do I get the iqn from the vMA? Some of my hosts are ESXi and even for the ESX I use the vMA to perform my everyday administration tasks.
There is no vmkiscsi-tool
command in the vMA, instead we are going to use the vicfg-iscsi
or the vicfg-scsidevs
command.
With vicfg-scsidevs
we can obtain the iqn listed in the UID
column.
[vi-admin@vma ~][esx02.mlab.local]$ vicfg-scsidevs -a
Adapter_ID Driver UID PCI Vendor & Model
vmhba0 mptspi pscsi.vmhba0 (0:16.0) LSI Logic Parallel SCSI Controller
vmhba1 ata_piix unknown.vmhba1 (0:7.1) Virtual Machine Chipset
vmhba32 ata_piix ide.vmhba32 (0:7.1) Virtual Machine Chipset
vmhba33 iscsi_vmk iqn.1998-01.com.vmware:esx02-42b0f47e () iSCSI Software Adapter
[vi-admin@vma ~][esx02.mlab.local]$
And with vicfg-iscsi
we can get the iqn providing the vmhba
device.
[vi-admin@vma ~][esx02.mlab.local]$ vicfg-iscsi --iscsiname --list vmhba33
iSCSI Node Name : iqn.1998-01.com.vmware:esx02-42b0f47e
iSCSI Node Alias :
[vi-admin@vma ~][esx02.mlab.local]$
The next logical step is to use PowerCLI to retrieve the iqn, but I’ll leave that for a future post.
Juanma.
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