mirror- stream different drive size
Michael Neumann
mneumann at ntecs.de
Fri Oct 20 16:24:15 PDT 2017
On 10/20/17 14:43, Predrag Punosevac wrote:
> Michael Neumann <mneumann at ntecs.de> wrote:
>
>> No. HAMMER1 mirroring works on the logical level, the physical drive
>> size is not important. You can think of it as if you would replay the
>> SQL statements in a database vs block level replication. With HAMMER1
>> mirroring you end up with two physically distinct filesystems with
>> identical content (where it matters).
>> mirror-stream is damn cool. I once did a live presentation of it at my
>> university, where I were replicating a PFS of my box from the data
>> center via WiFi to this tiny little Asus EEEpc. Students could upload
>> to my remote box and the name would pop up on my laptop via OSD once
>> the file was replicated to my laptop. It became funny as people started
>> to chat with me via OSD during my presentation by constructing file
>> names and uploading them ;).
>> Regards,
>> Michael
>
> One would think that a person with as many years of schooling as I have
> knows at least how to use Internet search engine. These slides from your
> HAMMER talk
>
> https://www.ntecs.de/talks/HAMMER.pdf
>
> are pure gem. Thank you so much for your e-mail and clarifications
You found it! :). You are welcome!
To clarify slide 4: You can either start "hammer mirror-stream" from the
masterhost OR from the slavehost. You don't need both.
Regards,
Michael
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