Iscsi Storage in VMware

I have done all of the bindings and the paths come up . However, when i go to add the datastore the window is empty (see attached files).
Iscsi-Paths.PNG
Iscsi-Paths-2.PNG

I can see there is LUN0 presented.

How large have you made this LUN?

is this a new LUN or re-used LUN?

The size of the Lun is 3.41 TB . I have migrated two virtual machines to this Lun from another Host . However I want to get this host to see the same Lun now.

What version of ESX? 4.x?

Max size of LUN is 2TB-512bytes

Configuration Maximums for VMware vSphere 4.1

http://www.vmware.com/pdf/vsphere4/r41/vsp_41_config_max.pdf

My Apologies , The size of the volume is 1.3 TB. See the attached file showing the volume on the host .
Volume-Size.PNG

this lun is used on another hosts?

Yes it is

it's not VMFS 5?

No its a VMFS 4 volume

so this single 1.3TB LUN VMFS3 is presented two other hosts and is working?

It is Presented to one other host and is working

try the following esxcfg-volume -l

example output


~ # esxcfg-volume -l
VMFS3 UUID/label: 4cc89503-f054d0d4-2865-00221958e471/nas3-vmfs
Can mount: Yes
Can resignature: No (the volume is being actively used)
Extent name: naa.600140588e9bab7d2b7ed4b53dadc1de:1     range: 0 - 1048319 (MB)

and then

esxcfg-volume -m 4cc89503-f054d0d4-2865-00221958e471 (UUID from above)

or

esxcfg-volume -m nas3-vmfs (or friendly datastore name)

When I run this command (esxcfg-volume -l) it goes back to the root prompt with no error. I am not sure if this means it is successful but I do not get the output you get above .

if means it cannot find any volumes.

Ok , I also just restarted the hosts and still no luck.

Create a new lun and present to this host as a test

I created a new lun and presented it to the second host and the same thing happens , it comes up under storage adapters but not under datastore.
Lun-test.PNG

did you try presenting to the first host?

or is the second host, the host you are having issue with?

when you click add storage the LUN does not appear?

there must be something wrong on this host, or configured differently to the other.

The new Lun has now come up for all hosts

Correction it appears for all the hosts in the add storage section . However when I try to add it to hosts two and three I get an error . When i try to add it to the first host i get through . I know there is a problem with Hosts two and three but do you have  any idea what it could be ?

error message is?

Call "HostDatastoreSystem.CreateVmfsDatastore" for object "datastoreSystem-224" on vCenter Server "friedrice.MEDIANET.local" failed.
Operation failed, diagnostics report: Unable to create Filesystem, please see VMkernel log for more details.

okay, is this a new LUN, or a reused LUN, often errors occur like this is because the lun, is reused and may have existing partitions or data that cannot be deleted or erased.

check the vmkernel.log for further details, from the console

Is there anything specific to look for in them ? I have been looking at them for the past half hour and I'm not seeing anything popping out at me.

is this a newly created lun or old lun?

Its a new one i created after having the problem with the initial 1.3 Tb LUN

whats the size?

5 GB

5 GB? that' small?

Yeh I just created one just big enough to come up under vmware . Do you think the size is an issue ?

try a larger LUN 20GB

I just tried with a 600 GB LUN while giving access to only one host and still got the same error

I Have tried another combination buy configuring a new server with ESXi and adding the same 1.3TB LUN through Iscsi and it comes up with no problems . This means the issue is with the Dell R610. I tried reinstalling ESXi on the R610 and redoing the entire configuration and still it does not come up , however when I connect to it I do not get the error anymore . I have also checked the BIOS and all virtualization features are enabled there . Any ideas what could be the difference with the R610 ?

it would be time to check the logs on the ESXi server

see here

http://xtravirt.com/vmware-esxi-4-log-files