Cannot list the ISCSI LUN in a "Increase Datastore Capacity" box

[Simon_mamh]

Hi all,

I am using VC5.1, VMFS 5.54.

Currently, i have 4 datastore in my ESXI 5.1 host (2FC datastore, 1NL datastore, 1 localdisk). i would like to extent the capacity of NL datastore, so i already create a new ISCSI LUN and exported to this ESXI host.

My procedure is: Select EXSI host > Configuration > Storage > "Select NL datastore and click properties" > "Click Increase button"

But i cannot see this LUN present in NL datastore "Increase Datastore Capacity" box.

If i select another datastore, such as 1 of FC datastore, the new ISCSI LUN is present in the "Increase Datastore Capacity" box.

May i know how can extent my NL datastore?

My NL datastore is using ISCSI port, currently this NL datastore already have 2 extents (2 5TB iSCISI disk). And the total capacity is 10TB, now i would like to add one more 5TB iSCISI disk for this datastore.

Thank you

[admin]

with NL datastore, what do you mean exactly - please elaborate.

[Simon_mamh]

Dear Rupam Thakuria

My NL datastore is using ISCSI port, currently this NL datastore already have 2 extents (2 5TB iSCISI disk). And the total capacity is 10TB, now i would like to add one more 5TB iSCISI disk for this datastore.

Thank you

[admin]

Hi Simon,

Since the LUN is being seen by a different datastore, I am pretty sure, it's is seen on Add a new Datastore window as well. Which means we can rule out any issues with the presentation/ compatibility of the SCSI controller.

For testing, can you present a LUN which is 2 TB - 512 B and see if it provides you the option to extend. I have a feeling, that the original Datastore was upgraded from VMFS 3 to VMFS 5. Strange, coz it allowed you to add two 5 TB LUNs earlier.

Trying out a new LUN with a different size will help narrow down. I looked at the COnfiguration Maximum and do not see any issues - > http://www.vmware.com/pdf/vsphere5/r51/vsphere-51-configuration-maximums.pdf

Regards,

Rupam

[Simon_mamh]

Hi Rupam,

Thank you for your support, tested with a 1.9TB LUN, but it still cannot see on the ISCSI storage extent device list, but i can see on the FC storage extent device and the "Add storage" list.

And have new finding, i just uses vsphere connect to a esxi host and find that the new 5TB and 1.9TB ISCSI presenting on the extent device list. It seems can extent the existing storage from this way. Before the action. May i confirm have risk if i extent the storage thru this way?

Thank you

Regards,

Simon

[Simon_mamh]

Hi Rupam,

Connected to ESXI host directly and success to extent the ISCSI storage capacity to 15TB. Thank you.

Regards,

Simon