Question

HSX Access

Forum|Forum|3 months ago
August 20, 2025
4 replies
73 views

A

+9

atitagain
Byte

All,

Has anyone experienced the following.

I have a three nodes HSX Ref architecture cluster and I have “enable password-based root access” disabled.

This means I can’t connect to it over SSH or iDRAC.

Yesterday I patched my cluster but the services on one of the nodes hung.

So, I went into the Command Centre and enabled password-based root access but because the node was hung the Command Centre could not talk to it to enable password-based root access so I could not connect to it.

As a work around I was able to enable password on node 2 and from here SSH to node 1 which allowed my restart the services and get the node back online.

My question is how would I connect if all three of my nodes were in a hung state ?

+3

Bronco
Vaulter
Forum|Forum|3 months ago
August 21, 2025

Hello @atitagain ,

If all three HyperScale X nodes are hung while password-based root access is disabled, there is no way to enable root directly from Commvault, since Command Center requires communication with the nodes. In this case, the only option is to use out-of-band management like iDRAC/iLO (or physical console) to power cycle the nodes, and bring them back online. Once the nodes are responsive, you can enable temporary root access again from Command Center if needed. If neither out-of-band nor console access is possible, the next step is to engage Commvault Support and the hardware vendor.

Regards,

Bronco

A

Like

+12

Michael Woodward
Commvault Certified Expert
Forum|Forum|3 months ago
August 21, 2025

I haven’t tested this, but could you SSH in using the restricted shell user (cvbackupadmin) and run one of the cvnode commands (--reboot, --commvault list/status/start etc) to either reboot or bring services back online?

If all 3 nodes failed, then I’d be engaging support.

A

Like

+3

Bronco
Vaulter
Forum|Forum|3 months ago
August 21, 2025

I haven’t tested this, but could you SSH in using the restricted shell user (cvbackupadmin) and run one of the cvnode commands (--reboot, --commvault list/status/start etc) to either reboot or bring services back online?

If all 3 nodes failed, then I’d be engaging support.

Hello @Michael Woodward

Yes indeed, that is true technically, it is possible.