[OpenIndiana-discuss] funky beginer questions

[Udo Grabowski (IMK)]

On 11/09/2013 16:13, Harry Putnam wrote:
> "Udo Grabowski (IMK)" <udo.grabowski at kit.edu> writes:
>
>>  From 7 years of experience with zfs I absolutely recommend to
>> go the other way, create filesystems below /rmh/... for each
>> host. The simple reason is that you can easily snapshot each
>> host, transport it, or even promote it to be the root on a real
>> physical machine. And you can easily destroy a machine filesystem.
>> It's all much easier and faster than doing a tar, rm, rsync
>> or whatever. With ZFS there's no reason not to have filesystems
>> for everything. We usually have more than hundred on a single
>> 96 TB fileserver, no problems, but great savings in manageability.
>
> Thanks for the input.
>
> I wondered how it works with something like a 4 level set of zfs fs.
>
> /rmh/host1/someproj/Acollection
> /rmh/host2/someproj/Acollection
>
> Seven filesystems in all assuming a .zfs at each level.
>
> Now, if you wanted to send receive the whole works you would not be
> able to send/receive a snapshot from /rmh/, right?
>
> So you'd need to send/receive all seven then, eh?  Or is there
> something like the -p operator to 'zfs create -p [...]' that can be
> invoked to allow you to send/receive the whole batch in one go?
>


You can always do a 'zfs snapshot -r ...' and a 'zfs send -r .....'
or even -R to send all snaps in one go.
-- 
Dr.Udo Grabowski    Inst.f.Meteorology a.Climate Research IMK-ASF-SAT
www.imk-asf.kit.edu/english/sat.php
KIT - Karlsruhe Institute of Technology            http://www.kit.edu
Postfach 3640,76021 Karlsruhe,Germany  T:(+49)721 608-26026 F:-926026