[Adminsysters] Fwd: TECH INFRA - PREP UpGRADE - issue [mur.at #12287] backup

[bolwerK]

hi
@ igni did you already start the backup solo
thought we were agreeing on a date :: 
https://transitional.anarchaserver.org/date/studs.php?poll=9hZvhKvLFK7Lu3Ug
and it seems  wednesday 16/10 we can be more people present
so can we do it all together that moment  - as in the meantime  we 
received this message from ralph of [mur][at]

xm


-------- Forwarded Message --------
Subject: 	Re: TECH INFRA - PREP UpGRADE - issue [mur.at #12287] backup
Date: 	Wed, 9 Oct 2024 14:46:43 +0200
From: 	Ralph Wozelka via RT <amt at mur.at>
Reply-To: 	amt at mur.at
To: 	info at ooooo.be, mara at multiplace.org



it looks like the transfers broke off pretty early in the process!

> murmin at hamster/backup/images/adelejean »ll
> total 1,1G
> -rw-rw-r-- 1 murmin murmin    0 Okt  3 17:53 adele01.img.lz4
> -rw-rw-r-- 1 murmin murmin  350 Okt  4 23:40 jean01.img.lz4
> -rw-rw-r-- 1 murmin murmin 1,1G Okt  3 15:32 test.img.lz4
> murmin at hamster/backup/images/adelejean »

I will write a script which will loop back and restart the receiving 
server-side process!
It will *keep* all files from previous attempts so that nothing can go 
amiss :-)
it will name the backup files like "adele01.img.lz4.202410091415", ...
and "jean01.img.lz4.202410091415", ...
each new attempt will create a separate file! :-)

use the lines as before again to commence transfer:
(I added -N for netcat so it will terminate after the end of file is 
reached. I noticed it just keeps going wailting for more input otherwise)

for adele, port 12346: dd if=/dev/<your-dev-on-adele> | lz4 | pv | nc 
-N  hamster.mur.at 12346
for jean, port 12347: dd if=/dev/<your-dev-on-jean> | lz4 | pv | nc -N 
hamster.mur.at 12347


let me know how it goes!

so long,
r

If the connection breaks it will restart the listening servers on the 
same tcp ports ready for transfar
On 03.10.24 17:59, Ralph Wozelka | NOC - mur.at wrote:
>
> I'll prepare for 2 separate transfers now!
> install lz4 and pv on your servers.
>
> try some transfer locally to make sure the tools work.
>
> then you should run this line:
>
> dd if=/dev/<your-dev-on-adele> | lz4 | pv | nc hamster.mur.at 12346
> dd if=/dev/<your-dev-on-jean> | lz4 | pv | nc hamster.mur.at 12347
>
> and I start 2 corresponding server on hamster *now*, which will store 
> the streams to local files there:
>
> /backup/images/adelejean »nc -l -p 12346 | cat > adele01.img.lz4
> /backup/images/adelejean »nc -l -p 12347 | cat > jean01.img.lz4
>
>
> --> the server side is up and running *from now on* and you can start 
> your transfer whenever you're ready.
>
> *note:*  the server processes will exit after your client terminates. 
> so if some error occurs on your side, I will need to restart the 
> server-side processes.
>
> it is the fastest way of transferring the data via the local network 
> (it is not encrypted - so only good for our local network. it would be 
> a rather poor choice for across the public internet)
>
> so long,
> r
>
> On 01.10.24 23:43, info at ooooo.be via RT wrote:
>> Tue Oct 01 23:43:50 2024: Request 12287 was acted upon.
>> Transaction: Correspondence added byinfo at ooooo.be
>> Queue: noc
>> Subject: TECH INFRA - PREP UpGRADE - issue [mur.at #12287] backup
>> Owner: rwoz
>> Requestors:info at ooooo.be,mara at multiplace.org
>> Status: open
>> Ticket <URL:https://rt.mur.at/Ticket/Display.html?id=12287 >
>>
>>
>> Hi  great for the enthousiasm.
>> Is raw  disk spaec around 500 gig
>>
>> $ df -h
>> *adele */dev/md0p2      876G  167G  665G  21% /
>> *jean* /dev/mapper/jean-data 875G  357G  474G  43% /
>>
>> and do you have a little more explanation what you expect from us ?
>> "/netcat socket on hamster"
>>
>>
>> xm
>>
>> sounds good
>> On 30/09/2024 17:10, Ralph Wozelka via RT wrote:
>>> hey systers!
>>>
>>> how big are the disk(s)?
>>> we could do it with netcat!
>>> I'd open a netcat listening socket on hamster, our backup server, and
>>> you could pipe the whole block device there via netcat...
>>>
>>> so long,
>>> r
>>>
>>> On 16.09.24 18:20,info at ooooo.be via RT wrote:
>>>> Mon Sep 16 18:20:09 2024: Request 12287 was acted upon.
>>>> Transaction: Ticket createdbyinfo at ooooo.be
>>>> Queue: noc
>>>> Subject: backup
>>>> Owner: Nobody
>>>> Requestors:info at ooooo.be
>>>> Status: new
>>>> Ticket<URL:https://rt.mur.at/Ticket/Display.html?id=12287 >
>>>>
>>>>
>>>> hello mur.
>>>> we write you / the technical support -
>>>> cc Andreas
>>>> to see if you can follow up our request?
>>>>
>>>> on 12/09 we wrote ANdreas --
>>>>
>>>> -------------------
>>>>
>>>> Dear Andreas
>>>>
>>>> hope you are doing well.
>>>> We want to upgrade adele server, but our backup server has some issues
>>>> so we are wondering if mur could make a full disk backup for us?
>>>>
>>>> -------------------
>>>>
>>>> thanks for taking it in consideration
>>>> xm
>>>>
>>>>
>>>>
>>>> thanks xm
>>>>
>>>>
>>>>
>>>>
> -- / NOC - mur.at
> / Network Operation Center / Systemadministration
> / +43 (0)681 816 45 308
> / Di-Fr 12:00-14:00 (Support)

-- 
     / NOC - mur.at
    / Network Operation Center / Systemadministration
   / +43 (0)681 816 45 308
/ Di-Fr 12:00-14:00 (Support)
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