Best config for a backup NAS

[BenGonGon]

Hello,
I want use my old and brave NAS for bakup data of my new NAS.

I want to backup dataset and zvol.

And for my old NAS, the speed is not mandatory. I have think to put compression to the highet level.

Someone have tips to give me (thanks you for futur tips)?

 

[m0nkey_]

If they're both FreeNAS, use replication tasks to backup your data.

 

[Stux]

Hello,
I want use my old and brave NAS for bakup data of my new NAS.

I want to backup dataset and zvol.

And for my old NAS, the speed is not mandatory. I have think to put compression to the highet level.

Someone have tips to give me (thanks you for futur tips)?

What is your old NAS?

 

[BenGonGon]

thank you for repsond me.

m0nkey_:
I go read your documentation. After that, I can tell if it is the good way like I wish/want.

Stux:
Like in my signature.
Backup NAS
5 x HD Deskstar 7K3000 3.5 SATA-III 3TB, 7200 rpm, 64M
Kingston Memory DDR3 8GB Kit PC3-8500 (2x 4GB)
Intel Core 2 Duo CPU E8400 @ 3.00GHz
ASRock G43Twins-FullHD, mATX, Intel G43, FSB 1333M
HP 539931-001 Quad-PORT PCI EXPRESS NIC NC365T
FreeNAS-8.3.0-RELEASE-x64 (r12701M)(it can be re-installed with new version of freenas)

Source NAS
Supermicro Case 825TQ-R740LPB
Supermicro Mainboard X10SRL-F
Intel Xeon E5-2623 v4, 2.6GHz and 2 QPI | 8 GT/s QPI
Crucial - DDR4 2 x 32 GB - DIMM 288-PIN - 2400 MHz
8 x WD Harddisk RE4 WD4000FYYZ 4 TB, 3.5"
2 x SATADOM 32GB
FreeNAS-9.10.1-U2 (f045a8b)

 

[BenGonGon]

I am back
I have read deeply doc.
I think Rsync task are better for me.
I have some question about it :

1) For Master is push direction and for slave is pull direction?

2) I want sync the zpool of Master on the zpool of slave, Can I put the zpool of slave in max compression or the sync choice compression level of master?

3) How Rsync work, at each sync it compare all file or it do it with a database for know what have change on master?

4) When I schedule a sync each 15 minutes. On the first sync it cannot finnish to work, what it do(launch a parallel sync, queue the second sync or do nothing about second sync)?

5) Zvol can be synced?

6) the master is configured in push and the slave must be configured in pull. only one config is needed or you do twice?

7) If in point 6 you need twice config. I want set 15 minutes on twice freenas, how it synchronize time between us?

8) compress data during transfer is very efficient?

Thank you if you have an answers.

 

[Robert Trevellyan]

1. Yes, if you consider Master to be live data and Slave to be backup.
2. They are independent.
3. Read the rsync documentation to understand how it operates: https://rsync.samba.org/
4. Don't do that - it will launch a 2nd task and the result will not be what you want. Make the task disabled, but click the run-now button the first time. When the first run is complete, enable the schedule. Start with a long interval and monitor progress before adjusting to a shorter interval. Always err on the side of avoiding overlap.
5. I don't think you can do this with rsync.
6. You only need a scheduled task on one side.
7. N/A
8. It's generally not useful unless bandwidth is low and CPU power is high.

 

[BenGonGon]

Hello,
I am setting RSYNC task.
And I have problem because I am not seeing data on backup side:
this task doing transfer 860 Kfiles, 65 KDir, 6.6 To. It is too many for FREENAS?

After doing a run now, it copying only 119 dir?
Why?

 

[snaptec]

Can you provide the Rsync logfile?


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[BenGonGon]

With pleasure, how can I take it?

 

[snaptec]

May look at
Man rsync

There is a --log-file flag
May add that as custom parameter when you use the GUI.
What other flags did you use?


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[BenGonGon]

I thank you snaptec for your tips.
The problem is :
1) I am having not enough knowloedge about RSYNC . I need to learn amore about it.
2) I need to found the RSYNC log for more understanding what is my problem

 

[BenGonGon]

I have add in auxiliary parameter of RSYNc --log-file=/var/rsync.log
after I am doing a "run now"
But I see not file rsync.log appear

 

[BenGonGon]

All work, it was because an old rsync task work in background.
the new one with good config refuse to be launched.

for checking that I have use "ps ax | grep rsync"
and for killing it : "killall rsync"

I have launch the new one and all work.
The useless logfile too(it grow monstruously)...