SyncIQ policies fail "No node on source cluster was able to connect to target cluster"

Summary: SyncIQ policies fail with error "No node on source cluster was able to connect to target cluster" on OneFS 9.1+. This is due to the "encryption required" flag being automatically set to "yes." ...

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Symptoms

SyncIQ source or target cluster was recently upgraded to OneFS 9.1.0 or later.

All policies fail with error:      
No node on source cluster was able to connect to target cluster.

The SyncIQ log /var/log/isi_migrate.log shows "attempting to run an unencrypted" message:        

2021-01-27T18:41:05Z <3.3> btestin-1(id1) isi_migrate[33253]: secondary: Source 1XX.1XX.1.69 is attempting to run an unencrypted sync while the global required flag is set.
2021-01-27T18:41:36Z <3.3> btestin-1(id1) last message repeated 5 times
2021-01-27T19:05:27Z <3.3> btestin-1(id1) isi_migrate[33253]: secondary: Source 1XX.1XX.1.69 is attempting to run an unencrypted sync while the global required flag is set.

Cause

In OneFS 9.1 and later, SyncIQ sets the encryption required flag to yes by default:       

# isi sync settings view
                                 Service: on
                           Source Subnet: -
                             Source Pool: -
                         Force Interface: No
                 Restrict Target Network: No
                       Tw Chkpt Interval: -
                          Report Max Age: 1Y
                        Report Max Count: 2000
                              RPO Alerts: Yes
                     Max Concurrent Jobs: 32
Bandwidth Reservation Reserve Percentage: 1
  Bandwidth Reservation Reserve Absolute: -
                     Encryption Required: Yes
                  Cluster Certificate ID:
              OCSP Issuer Certificate ID:
                            OCSP Address:
                  Encryption Cipher List:
                    Renegotiation Period: 8H
                 Service History Max Age: 1Y
               Service History Max Count: 2000
                    Use Workers Per Node: No

Resolution

There are two options to address this issue.

Run command # isi sync settings modify --encryption-required=false

btestin-1# isi sync settings view
                                 Service: on
                           Source Subnet: -
                             Source Pool: -
                         Force Interface: No
                 Restrict Target Network: No
                       Tw Chkpt Interval: -
                          Report Max Age: 1Y
                        Report Max Count: 2000
                              RPO Alerts: Yes
                     Max Concurrent Jobs: 16
Bandwidth Reservation Reserve Percentage: 1
  Bandwidth Reservation Reserve Absolute: -
                     Encryption Required: No
                  Cluster Certificate ID:
              OCSP Issuer Certificate ID:
                            OCSP Address:
                  Encryption Cipher List:
                    Renegotiation Period: 8H
                 Service History Max Age: 1Y
               Service History Max Count: 2000
                    Use Workers Per Node: No

Affected Products

Isilon, PowerScale OneFS, Isilon SyncIQ
Article Properties
Article Number: 000182756
Article Type: Solution
Last Modified: 12 Nov 2025
Version:  6
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