If a private interface has faulted or is down, certain commands like "cluster show", "storage disk list" would show an error in their outputs

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Article ID: 100043765

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Description

Examples

Incorrect output:

access7410> cluster show

Node            State      CPU(15 min)    ens192(15 min)      ens193(15 min)      ens224(15 min)      ens225(15 min)
                                %        rx(MB/s) tx(MB/s)   rx(MB/s) tx(MB/s)   rx(MB/s) tx(MB/s)   rx(MB/s) tx(MB/s)
----            -----      -----------   -------- --------   -------- --------   -------- --------   -------- --------
access7410_02   RUNNING          4.63       0.58     0.15       0.00     0.00       0.00     0.00       0.00     0.00

access7410> storage disk list
Disk               access7410_02
=========  ==============
emc0_0389  OK
emc0_0390  OK


 

Correct output:

access7410> cluster show

Node            State      CPU(15 min)    ens192(15 min)      ens193(15 min)      ens224(15 min)      ens225(15 min)
                                %        rx(MB/s) tx(MB/s)   rx(MB/s) tx(MB/s)   rx(MB/s) tx(MB/s)   rx(MB/s) tx(MB/s)
----            -----      -----------   -------- --------   -------- --------   -------- --------   -------- --------
access7410_02   RUNNING          5.14      27.29     0.57       0.00     0.00       0.00     0.00       0.00     0.00
access7410_01   RUNNING          3.34       1.21     0.17       0.00     0.00       0.00     0.00       0.00     0.00

access7410> storage disk list
Disk               access7410_01    access7410_02
=========  ==============  ==============
emc0_0389  OK                          OK
emc0_0390  OK                          OK


 

Cause

There is no failover of private IPs between the private interfaces. So when the first private interface(priveth0 in releases before VA 7.4.1 or interface on which internal IPs are assigned) goes down, it causes the connection to break while executing the commands on remote nodes. Veritas Access uses only the first private interface to communicate within the nodes of the cluster. This is done so as to not disturb the distribution of LLT traffic

Resolution

To avoid this issue, a private bond can be created between private interfaces via the CLISH command "network bond priv-create".

Issue/Introduction

If a private interface has faulted or is down, certain commands like "cluster show", "storage disk list" would show incorrect information in their outputs