[zfs-discuss] Re: Are there general guide to put ZFS on steroids?

Arman Khalatyan arm2arm at gmail.com
Wed Oct 30 11:54:40 EDT 2013


Steve could you please provide more details on how you accelerate your
backups with zfssnapshots +rsync?
thanks.




On Wed, Oct 30, 2013 at 3:35 PM, Steve Wilson <stevew at purdue.edu> wrote:

>  And why not use ZFS snapshots instead of rsnapshot hard links?  I used to
> use rsnapshot (it's a great tool!) and then started using rsync coupled
> with taking ZFS snapshots.  I found that this resulted in faster backups
> for our environment.
>
> Steve
>
>
> On 10/30/2013 10:30 AM, Arman Khalatyan wrote:
>
> I am planning to use compression from zfs, it was much faster than perl
> based backuppc compression.
>
>
>
> On Wed, Oct 30, 2013 at 3:29 PM, Arman Khalatyan <arm2arm at gmail.com>wrote:
>
>>  Compression is off on Backuppc
>>  rsnapshot and rdiff are similar they are not simply rsync, they use
>> hardlinks as well.
>>
>>
>>
>> On Wed, Oct 30, 2013 at 3:23 PM, Cédric Lemarchand <
>> cedric.lemarchand at ixblue.com> wrote:
>>
>>>
>>> Le 30/10/2013 14:24, Arman Khalatyan a écrit :
>>>
>>>  Thanks all for suggestions.Definitely I will go for rsnapshot.
>>>>
>>>> I just tested on same data (480GB-400k files, about 200MB/hour
>>>> changes): backuppc,rdiff-backup and rsnapshot
>>>> rsnapshot:   1min    (keep 7 hourly, 6 daily , 2weekly, 3 mountly )
>>>> rdiff-backup: 4min    (keep 14 days hourly backup)
>>>> backupPC:  20 min  (48 rollback history)
>>>>
>>>> It looks that lookup for backuppc is slower than on others.but for the
>>>> moment it has much more hard-links than others.
>>>>
>>>
>>>  BackupPC do more than a simple 'rsync', it compress and dedup files
>>> (deduped files are stored in pool/ dir).
>>>
>>>
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>>
>>
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