ACP module connection-error after ONTAP 9.1 upgrade

alessice

Hi,

I have upgrade my FAS2554 from 8.3 to 9.1. All works fine but about every 5 minutes in the Events Log I found this debug messages:

acp.command.connect: Could not establish connection with 192.168.2.145.

acp.command.connect: Could not establish connection with 192.168.2.145.

I read that starting from ONTAP 9 ACP move from out-of-band to in-band for communications, but I have no idea how to switch or solve for my case.

Here my configurations:

cluster2::> storage shelf acp module show
Node Module Name State
----------------- ----------------- ----------------------
cluster2-node01 1.0.B connection-error
1.0.A connection-error
cluster2-node02 1.0.B connection-error
1.0.A connection-error
4 entries were displayed.

cluster2::> storage shelf acp show
Node Channel Connectivity
------------------ --------------- ----------------------
cluster2-node01 out-of-band full-connectivity
cluster2-node02 out-of-band full-connectivity
2 entries were displayed.

cluster2::> storage shelf acp show -instance

Node: cluster2-node01
Channel: out-of-band
Enable Status: true
Port: e0P
IP Address: 192.168.2.55
Subnet: 192.168.0.1
Netmask: 255.255.252.0
Connection Status: full-connectivity

Node: cluster2-node02
Channel: out-of-band
Enable Status: true
Port: e0P
IP Address: 192.168.1.253
Subnet: 192.168.0.1
Netmask: 255.255.252.0
Connection Status: full-connectivity
2 entries were displayed.

cluster2::> storage shelf acp module show -instance

Node: cluster2-node01
Module Name: 1.0.B
Adapter Name: 0a
MAC Address: 00:a0:98:c6:ea:91
IOM Type: iom6e
Shelf Serial Number: SHJHU1702000451
IP Address: 192.168.2.145
Protocol Version: 2.1.01.22
Firmware Version: 01.22
Assigner ID: 537067641
State: connection-error
Last Contact: 514

Node: cluster2-node01
Module Name: 1.0.A
Adapter Name: 0a
MAC Address: 00:a0:98:c6:ed:91
IOM Type: iom6e
Shelf Serial Number: SHJHU1702000451
IP Address: 192.168.1.145
Protocol Version: 2.1.01.22
Firmware Version: 01.22
Assigner ID: 537067641
State: active
Last Contact: 36

Node: cluster2-node02
Module Name: 1.0.B
Adapter Name: 0b
MAC Address: 00:a0:98:c6:ea:91
IOM Type: iom6e
Shelf Serial Number: SHJHU1702000451
IP Address: 192.168.2.145
Protocol Version: 2.1.01.22
Firmware Version: 01.22
Assigner ID: 537067641
State: connection-error
Last Contact: 514

Node: cluster2-node02
Module Name: 1.0.A
Adapter Name: 0b
MAC Address: 00:a0:98:c6:ed:91
IOM Type: iom6e
Shelf Serial Number: SHJHU1702000451
IP Address: 192.168.1.145
Protocol Version: 2.1.01.22
Firmware Version: 01.22
Assigner ID: 537067641
State: active
Last Contact: 36
4 entries were displayed.

cluster2::> system service-processor show
IP Firmware
Node Type Status Configured Version IP Address
------------- ---- ----------- ------------ --------- -------------------------
cluster2-node01
SP online true 2.4.1P2 192.168.7.210
cluster2-node02
SP online true 2.4.1P2 192.168.7.211
2 entries were displayed.

I read the KB https://kb.netapp.com/app/answers/answer_view/a_id/1029778 but I have no understand if for my setup is sufficient an

storage shelf acp configure -is-enabled true -channel in-band

or can cause problems if firmware or similar are not at the right version.

Thanks

AlexDawson

BURT ID 1121636

After the Data ONTAP software upgrade from 8.3.x to 9.1.Px, ONTAP might report
 that the Alternate Control Path (ACP) processor on IOM6/IOM6E is no longer
 active, and it is reported as a "connection-error."
 You can verify this issue by using the "storage shelf acp module show" command
 to display the state of all ACP processors on IOM modules.
 cluster1::> storage shelf acp module show
 Node               Module Name        State
 -----------------  -----------------  ----------------------
 cluster1-01        1.10.B             active
                     1.11.B             active
                     1.11.A             active
                     1.10.A             active
                     1.0.A              connection-error
                     1.0.B              active
 cluster1-02        1.10.B             active
                     1.11.B             active
                     1.11.A             active
                     1.10.A             active
                     1.0.A              connection-error
                     1.0.B              active

 1. Disable ACP
 cluster1::> storage shelf acp configure -is-enabled false
 2. Wait for 5 minutes to allow the ACP to reset completely.
 3. Enable out-of-band ACP again and use the default IP address. ACP provides the
 IP address.
 cluster1::> storage shelf acp configure -is-enabled true -channel out-of-band