The management-server discovery port of HP OpenView Storage Area Manager, a SAN management suite discontinued in 2015.
IANA registers 3869 as ovsam-mgmt, "hp OVSAM MgmtServer Disco". HP OpenView Storage Area Manager was a centralised suite for discovering and managing Fibre Channel switches, HBAs, arrays and tape libraries across a storage network, with host agents reporting to a central management server. HP discontinued it in 2015 in favour of Storage Essentials. Anything still listening on 3869 is a surviving management server in a very old storage estate.
Do not expose
An end-of-life storage management plane that stopped receiving fixes over a decade ago — it should not be reachable from anything but its own management network.
$ nc -vz TARGET 3869Seen this on your network? Beige Box scans your Wi-Fi and shows every open port on every device — and its Ports tool links straight back here.
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Corrections or a missing port? Reply @rimrocksystems.