Date: Thu, 23 Feb 2023 18:09:07 +0100 From: Miroslav Lachman <000.fbsd@quip.cz> To: Freddie Cash <fjwcash@gmail.com> Cc: mike tancsa <mike@sentex.net>, freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: speeding up zfs send | recv (update) Message-ID: <d55595b5-39b4-b4a2-b773-129d299de545@quip.cz> In-Reply-To: <CAOjFWZ7k7ANwcGyNCoYMg%2BLUBzAz2VyNfxQo5rKcrYj8XFgG3Q@mail.gmail.com> References: <866d6937-a4e8-bec3-d61b-07df3065fca9@sentex.net> <CAOtMX2gifUmgqwSKpRGcfzCm_=BX_szNF1AF8WTMfAmbrJ5UWA@mail.gmail.com> <f6ea3387-faf8-4c63-d1e7-906fa397b00b@sentex.net> <a38578c6-b633-249d-90f0-0652377d76c0@quip.cz> <c229a502-fb76-ec6a-a56b-934d3b56e474@sentex.net> <1031e2b0-b245-1dc6-a499-8f4da3796543@quip.cz> <46455168-d7f1-6ca9-ad2f-9bcd3359e0f3@sentex.net> <78c78aec-a34b-f188-ef96-8ced9a1eda35@quip.cz> <CAOjFWZ7k7ANwcGyNCoYMg%2BLUBzAz2VyNfxQo5rKcrYj8XFgG3Q@mail.gmail.com>
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On 22/02/2023 22:43, Freddie Cash wrote: > [Sorry for top part, GMail sucks for replies.] > > If this is a LAN or private WAN where you trust the network, piping the > send stream through netcat will remove ssh from the equation. > > That's what we switched to using once it became almost impossible to get > the "none" cipher working with ssh on FreeBSD. It would be good if I can run it without ssh overhead but I don't found any example on the internet how to use Sanoid / Syncoid without SSH. It looks like ssh is requirement and mbuffer and pv is optional. > We use ssh to connect to the remote server and enable a netcat listener > on port X, then pipe the send through netcat to the remote system on > port X. That way it's logged and uses ssh for authentication. > > We easily saturate gigabit links between our ZFS systems using netcat. Nice trick. Next time I will need to move fet TB of zfs data I will try different solution instead of Syncoid to avoid slow ssh. Netcat or direct mbuffer listening on TCP port seems better. Kind regards Miroslav Lachman
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