Data Domain : "Ha create peer" failed with error "Communication with the peer node timed out."

Summary: "Ha create peer" failed due to "HA interconnect" not connected.

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Symptoms

1. Ping worked on both HA nodes.

2. Iperf worked on both HA nodes.

3. Veth99 could not be destroyed. 
net destroy veth99

**** veth99 is used for the interconnect and cannot be configured.

4. Ha.log kept reporting "_detect_peer_ip: recvfrom error" 
01/11 00:20:11 WARNING: _detect_peer_ip: recvfrom error
01/11 00:20:11 WARNING: _detect_peer_ip: recvfrom error
01/11 00:20:11 WARNING: _detect_peer_ip: recvfrom error

Cause

The HA interconnect (veth99) is not connected (link down, no cable plugged in). 
net show settings
port     enabled   state     DHCP   IP address                 netmask           type   additional setting
veth99   yes       down      no     (not specified)            (not specified)   n/a    lacp hash xor-L3L4: eth1a,eth1b
net show hardware
Port    Speed      Duplex    Supp Speeds      Hardware Address    Physical   Link Status   State
-----   --------   -------   --------------   -----------------   --------   -----------   -------
eth1a   unknown    unknown   100/1000/10000   00:60:16:a9:00:40   Copper     unknown       down
eth1b   unknown    unknown   100/1000/10000   00:60:16:a9:00:40   Copper     unknown       down

Resolution

Connect the HA interconnect (veth99).
https://dl.dell.com/content/docu79597_single-node-to-high-availability-upgrade-for-dd6800-dd9300-dd9500-and-dd9800.pdf?language=en_us
Page 37-39
Connecting the HA interconnect

Affected Products

Data Domain

Products

Data Domain
Article Properties
Article Number: 000060437
Article Type: Solution
Last Modified: 07 May 2024
Version:  4
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