Discuss Nutanix NCP-US Exam Topic 10 Question 19

Refer the exhibit.

An administrator has received a support request indicating that after an update and reboot Of a Linux VM, the VM is no longer able to access the Volume Groups (VG) assigned to it.

When the administrator investigates the issue, the error message shown in the exhibit is displayed.

What are two possible reasons for the behavior? (Choose two.)

AThe new iscsiadm binary is not compatible with the version.

BThe administrator has a mistake when inputting the data services IP.

CA firewall rule is preventing the client to access the x.x.x.250 IP.

DThe client's IQN is no longer in the whitelist of the affected VG

Suggested Answer: B, D

iscsiadmis a command-line tool that allows you to manage iSCSI connections and devices. The error message shown in the exhibit indicates that there is a problem with connecting to the iSCSI target at x.x.x.250.

https://stackoverflow.com/questions/29954195/error-message-from-iscsiadm-while-trying-to-connect-to-a-iscsi-drive

Nutanix volume groupsare collections of vDisks that can be exposed to virtual machines or physical hosts using iSCSI protocol. Nutanix volume groups have a whitelist feature that allows you to specify which clients can access them.

https://portal.nutanix.com/page/documents/solutions/details?targetId=BP-2049-Nutanix-Volumes:BP-2049-Nutanix-Volumes

1. The administrator has a mistake when inputting the data services IP.This could cause the iscsiadm command to fail to discover or login to the iSCSI target at x.x.x.250. The administrator should verify that they have entered the correct data services IP for the Nutanix volume group.

2. The client's IQN is no longer in the whitelist of the affected VG. This could cause the iSCSI target to reject or ignore the connection request from the client. The administrator should check that they have added or updated the client's IQN in the whitelist of the Nutanix volume group.

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17 comments · newest first

Alesia 10 months ago

Mistakes with the data services IP happen all the time.

Barb 11 months ago

Wait, how can the binary be incompatible after just an update?

Raina 11 months ago

I think it might be the IQN whitelist issue.

Maryrose 11 months ago

Definitely a firewall rule problem!

Augustine 11 months ago

Could be the new iscsiadm binary issue.

Thurman 11 months ago

I'm a bit confused about the IQN and whitelisting. Is it possible that the client's IQN got removed somehow?

Onita 12 months ago

The firewall rule option sounds plausible. I recall that network issues can often cause access problems after updates.

Heidy 12 months ago

I think I saw a similar question about IP configurations in our practice tests. Could it be that the data services IP was entered incorrectly?

Tamesha 1 year ago

I remember something about compatibility issues with iscsiadm, but I'm not sure if that's the main problem here.

King 1 year ago

Alright, let's think this through step-by-step. The key details seem to be the error message and the mention of the volume groups. I'll focus on those and see if I can narrow down the most likely causes.

Soledad 1 year ago

Ugh, I'm not sure about this one. The possible answers seem a bit vague, and I'm not super familiar with iSCSI and volume groups. I'll have to try to eliminate the options that don't seem relevant.

Winfred 1 year ago

Okay, let's see here. The error message mentions something about the iscsiadm binary, so that's probably a good place to start. I'll need to check if the version is compatible with the system.

Reita 1 year ago

Hmm, this looks like a tricky one. I'll need to carefully read through the error message and the possible answers to see if I can identify the most likely reasons for the issue.

Odelia 1 year ago

This one's got me a bit stumped. I'm not sure if I fully understand the underlying technology here. I'll do my best to reason through the possible answers, but I might need to make an educated guess.

Bonita 1 year ago

I feel pretty confident about this one. The dynamic authorization server setup in option A seems like the right approach to enable the CoA functionality.

Rolande 1 year ago

I think the URL should be similar to the ones we've seen in practice, like that `/jsxapi` endpoint. Did we cover the right format for device updates?

Yun 1 year ago

I'm not sure I fully understand the question. I might need to review the material again.

Nutanix NCP-US Exam - Topic 10 Question 19 Discussion