Hi,
In testing NDMP dumps over 10GbE, I am seeing it max out at 1.5Gb/s. Some here are thinking that NDMP should be using more of that pipe. Anyone know about, or have numbers of NDMP transfer rates over 10GbE? Any caps or thresholds in OnTap that keep NDMP from gobbling up resources on the controller? I have run tests over the 10GbE connection from controller to controller, 10k drives to 10k drives, sata drives to sata drives, and always 1.5Gb/s is the ceiling. FTP'ing data from server to server across the same 10GbE network shows rates of 2.5Gb/s or higher.
My NDMP options:
ndmpd.access all ndmpd.authtype challenge ndmpd.connectlog.enabled off ndmpd.data_port_range all ndmpd.enable on ndmpd.fh_node_retry_interval 250 ndmpd.ignore_ctime.enabled off ndmpd.maxversion 4 ndmpd.offset_map.enable on ndmpd.password_length 16 ndmpd.preferred_interface e1a (value might be overwritten in takeover) ndmpd.tcpnodelay.enable on ndmpd.tcpwinsize 65534
IF e1a configuration:
e1a: flags=0x5f4e867<UP,BROADCAST,RUNNING,MULTICAST,TCPCKSUM,NOWINS> mtu 1500 inet x.x.x.x netmask 0xffffff00 broadcast x.x.x.x partner e1a (not in use) ether 00:07:43:08:98:ae (auto-10g_sr-fd-up) flowcontrol none