Re: [BackupPC-users] Backing up the BackupPC pool

[Bzzzz]

On Thu, 10 Aug 2017 11:26:26 +0800
Alexey Safonov  wrote:

> you can use for example FreeNAS (ZFS based) which can sync snapshots.

you can even do better (depending on your IT Dpt size), using GlusterFS
onto ZFS, and synchronize with the remote site :)

However, these solutions implies to transmit the whole shebang; so the
available inet bandwidth might be the final judge (difficult to elaborate
an answer with only scarce parts of the equation…)

JY

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Re: [BackupPC-users] Backing up the BackupPC pool

[Alexey Safonov]

you can use for example FreeNAS (ZFS based) which can sync snapshots.

On 10 August 2017 at 06:38, B  wrote:
> On Wed, 9 Aug 2017 16:29:49 -0600
> Ray Frush  wrote:
>
>> A snapshot of the BackupPC Filesystem does not protect from gross
>> hardware failure of the storage that destroys both the data and the
>> snapshots.
>
> I think he meant making a snapshot then convey it to he's 2nd site.
>
> JY
>
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Re: [BackupPC-users] Backing up the BackupPC pool

[Bzzzz]

On Wed, 9 Aug 2017 16:29:49 -0600
Ray Frush  wrote:

> A snapshot of the BackupPC Filesystem does not protect from gross
> hardware failure of the storage that destroys both the data and the
> snapshots.

I think he meant making a snapshot then convey it to he's 2nd site.

JY

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Re: [BackupPC-users] Backing up the BackupPC pool

[Ray Frush]

A snapshot of the BackupPC Filesystem does not protect from gross hardware
failure of the storage that destroys both the data and the snapshots.

--
Ray Frush

On Wed, Aug 9, 2017 at 3:42 PM, Alexander Moisseev via BackupPC-users <
backuppc-users@lists.sourceforge.net> wrote:

> On 8/9/2017 11:47 PM, Hannes Elvemyr wrote:
>
> Sound great, but how do I know that BackupPC is not reading/writing to the
>> pool during the copying process (maybe some backup is running or
>> BackupPC_Nightly could start doing some cleaning). Copying a large pool
>> over a bad Internet connection could take hours…
>>
>> Option 1. Stop BackupPC.
> Option 2. Make a snapshot of the file system.
>
>
>
> 
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>



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Re: [BackupPC-users] Backing up the BackupPC pool

[Alexander Moisseev via BackupPC-users]

On 8/9/2017 11:47 PM, Hannes Elvemyr wrote:


Sound great, but how do I know that BackupPC is not reading/writing to the pool 
during the copying process (maybe some backup is running or BackupPC_Nightly 
could start doing some cleaning). Copying a large pool over a bad Internet 
connection could take hours…


Option 1. Stop BackupPC.
Option 2. Make a snapshot of the file system.


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Re: [BackupPC-users] Backing up the BackupPC pool

[Bzzzz]

On Wed, 9 Aug 2017 22:47:25 +0200
Hannes Elvemyr  wrote:

I forgot: for either solution, you wanna have a deep look at
https://www.wireguard.com/ , a VPN solution faster than any
competition, very easy to set up, protected by PFS and
elliptic curve crypto.

JY

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Re: [BackupPC-users] Backing up the BackupPC pool

[Ray Frush]

Hannes-

Option 2, Copying the the pool (tar, then copy) to a remote server appears
to be viable for small installations, and we've tested that with success.
But at a certain point, if you have a lot of machines, and your pool gets
large, that process becomes un-manageable.  (Our pool is about 3.5TiB for
just over 100 hosts backed up).  Just  tar-ing the data store up takes most
of the day.

So, Option 1 starts to look more appealing.   It may be that your primary
instance (local) has a more aggressive retention schedule than the remote
copy, or other differences like how frequently backups run.

--
Ray Frush



On Wed, Aug 9, 2017 at 2:47 PM, Hannes Elvemyr  wrote:

> Hi!
>
> I'm using BackupPC for all my machines and it's great! I would now like to
> protect my BackupPC pool somehow (if my BackupPC server crashes, gets
> stolen or burns up I don't want to loose the data). As I see it, I have at
> least two options:
>
> 1. Run a second instance of BackupPC off-site
>
> This of course creates a new second pool, but that could actually be an
> advantage if one of them somehow gets corrupted.
>
> Pros: Two independent pools.
>
> Cons: Complicated setup. I need a VPN between my network and the off-site
> machine to get this to work, which turned out to be more complicated than I
> first thought (my current router does not support static routing, so a new
> router would be the first step). I would also need to sync the BackupPC
> configuration from my main BackupPC instance to the second one (if I change
> some configuration on my main instance, I would also like the second
> instance to get that change).
>
> 2. Copying the pool and send it off-site
>
> Pros: No need for a second BackupPC instance. Seems to be the easier
> solution if I can find out how to make a reliable copy of the pool.
>
> Cons: How to copy the pool? The version 4 documentation says that “In V4,
> since hardlinks are not used permanently, duplicating a V4 pool is much
> easier, allowing remote copying of the pool.”. Sound great, but how do I
> know that BackupPC is not reading/writing to the pool during the copying
> process (maybe some backup is running or BackupPC_Nightly could start doing
> some cleaning). Copying a large pool over a bad Internet connection could
> take hours…
>
> Any thought on this? How do you get redundancy of your BackupPC data?
>
> Thanks!
>
> --
> /Hannes Elvemyr
>
>
> 
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>
>


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Re: [BackupPC-users] Backing up the BackupPC pool

[Bzzzz]

On Wed, 9 Aug 2017 22:47:25 +0200
Hannes Elvemyr  wrote:

> Hi!

Biscotte Hannes,

> I'm using BackupPC for all my machines and it's great! I would now
> like to protect my BackupPC pool somehow (if my BackupPC server
> crashes, gets stolen or burns up I don't want to loose the data).

Use an encrypted partition/HD to house the BPC pool|cpool.

> As I
> see it, I have at least two options:
> 
> 1. Run a second instance of BackupPC off-site
> 
> This of course creates a new second pool, but that could actually be
> an advantage if one of them somehow gets corrupted.

This would be ZE wise (and first) thing to do; think about little
inconveniences that will happen one day or another to your work building:
fire, lightning strike, flooding, gas (or bomb) explosion, dragon attack,
rabid customer, and worse of all: a mad Craig Barratt attack (well,
he's already mad, so it's not a matter of "if" but really a matter of
"when";-p)

It will also give you the main benefit of rsync by tunneling only
what's necessary (only your first backup will take more time.)

Think about the whole pool size and the time needed to tunnel it
elsewhere…

Jean-Yves

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[BackupPC-users] Backing up the BackupPC pool

[Hannes Elvemyr]

Hi!

I'm using BackupPC for all my machines and it's great! I would now like 
to protect my BackupPC pool somehow (if my BackupPC server crashes, gets 
stolen or burns up I don't want to loose the data). As I see it, I have 
at least two options:


1. Run a second instance of BackupPC off-site

This of course creates a new second pool, but that could actually be an 
advantage if one of them somehow gets corrupted.


Pros: Two independent pools.

Cons: Complicated setup. I need a VPN between my network and the 
off-site machine to get this to work, which turned out to be more 
complicated than I first thought (my current router does not support 
static routing, so a new router would be the first step). I would also 
need to sync the BackupPC configuration from my main BackupPC instance 
to the second one (if I change some configuration on my main instance, I 
would also like the second instance to get that change).


2. Copying the pool and send it off-site

Pros: No need for a second BackupPC instance. Seems to be the easier 
solution if I can find out how to make a reliable copy of the pool.


Cons: How to copy the pool? The version 4 documentation says that “In 
V4, since hardlinks are not used permanently, duplicating a V4 pool is 
much easier, allowing remote copying of the pool.”. Sound great, but how 
do I know that BackupPC is not reading/writing to the pool during the 
copying process (maybe some backup is running or BackupPC_Nightly could 
start doing some cleaning). Copying a large pool over a bad Internet 
connection could take hours…


Any thought on this? How do you get redundancy of your BackupPC data?

Thanks!

--
/Hannes Elvemyr

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