Symptoms

Error code CONN0064 at 48% during the configuration phase of DM5510 applianceDay‑1 configuration of a Data Domain DM5510 appliance stops at 48 % with error CONN0064 (Internal System Failure). The failure occurs during the Data Domain network assignment when bringing up physical interface eth2a, causing HTTP 500 and "Failed to set link parameters" errors. Day‑1 configuration failure details Configuration stops at 48 % with error code CONN0064 (Internal System Failure).Failure occurs during the Data Domain Network Assignment task while bringing up physical interface eth2a .The API call to enable the interface returns an HTTP 500 (Internal Server Error). INFO [workflow-ITHACANETWORKCONFIGONBOARDINGNORMAL_WF_D290126_T142309054-thread-13] ddrest.DDRestUtil - makeInterfaceUpWithDefaultIPInboundJaxrsResponse{context=ClientResponse{method=PUT, uri=https://192.168.100.109:3009/api/v3/dd-systems/0/networks/interfaces/physicals/eth2a, status=500, reason=Internal Server Error}}

Cause

Cause of CONN0064 Failure During DAY 1 Configuration The DAY 1 configuration of the DM5510 appliance stops at 48 % with error code CONN0064 (Internal System Failure) because the physical interface eth2a cannot be brought up. The underlying issue is a cabling and auto‑negotiation problem with Direct‑Attach copper cables connected to an E810 NIC. The NIC rejects the link‑parameter settings, causing the interface activation to fail. Key Technical Indicators API call to https://192.168.100.109:3009/api/v3/dd-systems/0/networks/interfaces/physicals/eth2a returns HTTP 500 (Internal Server Error).Data Domain logs show "failed to set link parameters, error: 95 (Operation not supported)"Interface state remains in error condition ( if_state=0x1043 ) and cannot transition to RUN. Relevant log excerpts: Jan 29 14:27:53 dd01-DE300255100201 sms: INFO: dd_net: plib: Took 4 sec to go to running state for eth2a Jan 29 14:27:53 dd01-DE300255100201 sms: INFO: dd_net: plib: _net_set_params interface eth2a: HW settings autoneg 1 speed 0 duplex 0 fec 0 Jan 29 14:27:53 dd01-DE300255100201 sms: INFO: _set_iface_state(): ifname=eth2a, rq_state=4, if_state=0x1043 Jan 29 14:27:53 dd01-DE300255100201 sms: ERROR: _net_set_params_pe interface eth2a: failed to set link parameters, error : 95 (Operation not supported) Jan 29 14:27:53 dd01-DE300255100201 sms: ERROR: dd_net: plib: _net_set_if(): _net_set_params() failed for iface eth2a, error Operation not supported Jan 29 14:27:53 dd01-DE300255100201 sms: ERROR: dd_plib_net netrq: eth2a, clrrq=8, ifstate=RUN, autoneg=1, full_duplex=0, speed=0, ipv6ready=1, Jan 29 14:27:53 dd01-DE300255100201 sms: ERROR: Error: <22: *** Failed to set link parameters., ddr/lib/dd_plib_net.c, _net_set_params_pe, 2693> Jan 29 14:27:53 dd01-DE300255100201 sms: NOTICE: dd_plib_net_setup(): Interface, eth2a, configuration complete, err = 22. Jan 29 14:27:53 dd01-DE300255100201 sms: ERROR: _sms_net_enable_iface: Could not enable interface eth2a error *** Failed to set link parameters. Jan 29 14:27:53 dd01-DE300255100201 sms: ERROR: sms_net_core_config_iface[6]: *** Failed to set link parameters.

Resolution

This issue will be fixed in future DM5510 code. To work around error CONN0064 Failure During Day‑1 Configuration:Recommended First‑Step: Replace Cabling.1. Direct‑Attach (DA) copper cables on an E810 NIC can cause auto‑negotiation failures. To resolve follow one of the two below steps: If Dell DA Passive cable is in use, change for Dell DA Active cable.Replace the cable with the supplied compatible Fiber Optic cable. 2. Complete the configuration.

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