CloudArena

  NSX-T Data Center   leverages BGP EVPN technology to interconnect and extend NSX-managed overlay networks to other data center environments not managed by NSX, VXLAN encapsulation is used between NSX TEPs (edge nodes and hypervisors) and external network devices to ensure data plane compatibility. Two connectivity modes are supported for EVPN implementation in  NSX-T Data Center : Inline Mode: In this mode, the tier-0 gateway establishes MP-BGP EVPN control plane sessions with external routers to exchange routing information. In the data plane, edge nodes forwards all the traffic exiting the local data center to the data center gateways and incoming traffic from the remote data center to the hypervisors in the local data center. Since the edge nodes are in the data forwarding path, this model is called the Inline model. Route Server Mode: In this mode, the tier-0 gateway establishes MP-BGP EVPN control plane to exchange routing information with the external router or route reflectors

Today, I am writing this post related to SDDC manager backup task failure with error message " Could not start SDDC Manager backup Backup failed : Unexpected error encountered when processing SDDC Manager Backup ". SDDC manager is running with VCF 4.5.1 version. We have configured the SDDC backups on a external SFTP server. Below is the screenshot of backup task failure. After checking the operations logs under   /var/log/vmware/vcf/operationsmanager/operationsmanager.logs we have found below entries related to backup failures that indicating issue with SOS client service and Too many files open in backup task.   2023-09-25T11:22:34.655+0000 ERROR [vcf_om,99cc8bcd8fbb453b,d881] [c.v.v.b.helper.SosBackupApiClient,http-nio-127.0.0.1-7300-exec-5] An exception 500 INTERNAL SERVER ERROR: "{"arguments":[],"causes":[{"message":"[Errno 24] Too many open files: '/var/log/vmware/vcf/sddc-support/vcf-sos.log'","type":