[NBLUG/talk] Synchronizing strategies

Zack Gold zg at nblug.org
Sat Nov 22 11:14:52 PST 2014


You could write a clever script that stores md5sums of every file and check
I'd it's changed.
On Nov 22, 2014 2:13 PM, "Omar Eljumaily" <omar at omnicode.com> wrote:

> I'd like to have the knowledge of when a file changes.  I don't know how
> to get those notifications in linux.  Does anybody know?
>
> Also, not all files get closed to the point where they can be copied every
> time they're modified.  Windows clients are notorious for keeping files
> open all day long without letting other processes copy them.
>
> The thing with the could side is that I don't want to be the person
> responsible for running the cloud server, so I'm going to have to work
> within the cloud provider's framework.  The ones I'm looking at right now
> are Google and 1and1.com (which seems to be pretty cheap, about $10/month
> for 1 terrabyte).
>
> Thanks,
>
> Omar
>
>
> On 11/22/2014 10:57 AM, Jordan Erickson wrote:
>
>> I use rsync+ssh+rsnapshot+cron for a (albeit daily) backup of multiple
>> VMs in "the cloud" (my cloud) totaling about 1.5TB total to a local
>> disk, then another rsnapshot to an external disk about every month. It's
>> fast. rsync is designed to take large amounts of data and sync them
>> efficiently.
>>
>> Is there a requirement for "every hour" (and not something more frequent
>> like, every time a file changes)? If not, maybe a trigger that whenever
>> a file changes, it's sync'd... I'm sure multiple avenues are possible
>> with some simple script-fu (and probably plenty of ready-to-go packages
>> as well).
>>
>>
>> Jordan Erickson (PGP: 0x78DD41CB)
>> LNS: 707-636-5678, http://logicalnetworking.net
>>
>>
>> On 11/22/2014 10:50 AM, steve wrote:
>>
>>> On 11/22/2014 10:43 AM, Zack Gold wrote:
>>>
>>>> rsync + cron?
>>>>
>>>> On Nov 22, 2014 1:36 PM, "Omar Eljumaily" <omar at omnicode.com
>>>> <mailto:omar at omnicode.com>> wrote:
>>>>
>>>>      Does anybody know about file synchronization strategies, mainly for
>>>>      synching from a local file server to a cloud?  What I'm trying to
>>>>      accomplish is:
>>>>
>>> For a terebyte???
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