zfs discuss - Aug 2009 - Procedure for Initial ZFS Replication to Remote Site by External HDD?

What is the best way to use an external HDD for initial replication of a large
ZFS filesystem?

System1 had filesystem; System2 needs to have a copy of filesystem.
Used send/recv on System1 to put filesystem at snap1 on connected external HDD.
Exported external HDD pool and connected/imported on System2; then used
send/recv to copy it to System2.

Incremental send/recv from System1 for @snap1 to @snap2 fails.

Clearly I have failed to take some measure of preparation. Osol isn''t
recognizing that the destination filesystem is/should be the same as the source
@snap1.

I didn''t find this issue on the forums but I will continue searching.
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I figured out what I did wrong. The filesystem as received on the external HDD
had multiple snapshots, but I failed to check for them. So I had created a
snapshot in order to send/recv on System2. That doesn''t work,
obviously.

A new local send/recv of the filesystem''s correct snapshot did the
trick. Now System1 is replicating incrementals from San Diego to Seattle.
Huzzah!
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