Two seperate NAS Server's

[doofus]

Having two separate nas server's is there a way to sync all the data from one nas to the other? So I could consider the second nas server server a backup.

 

[peterh]

You have at least two options ( for freenas)
1/ use zfs send/receive
2/ use rsync
both scheduled via cron

 

[doofus]

Is there a more step by step guild? Not really an expert at this.

 

[peterh]

rsync is most likley the simplest. See http://en.wikipedia.org/wiki/Rsync for a starting place

 

[Joshua Parker Ruehlig]

If using rsync over ssh. Uou want to setup password keys one each server so that the one that initiates the rsync command has ssh access to a user on the other box. The key to doing this right is pemissions, but once you got i down it's not bad. Then once you got that just create an rsync command.

 

[BikerScott]

Hi, I am using rsync to replicate between to FreeNAS 8 servers. From what I can tell, only 1 rsync task can run at a time. Is this correct? Is there a way to have concurrent tasks running? I have 3 LUNs that I want to sync to a remote server. Thanks

 

[Joshua Parker Ruehlig]

Who said 1 rsync task at a time? That is preferable as they can mess with each others workflows but I believe you can run as many rsync tasks as you want.

 

[BikerScott]

Thanks Joshua. I am only going off what I observed on my rsync schedules and it appeared that only 1 could run. I will have a further look now I have your confirmation. Cheers, Scott

 

[logan54]

@BikerScott:

Hello,
i've made same observations that only one rsync task is present in the task list if I start several of them at the same time, see my post:

http://forums.freenas.org/showthread.php?7363-starting-two-rsync-tasks&highlight=logan54

At the moment haven't any time to keep track of this matter.

logan54

 

[Joshua Parker Ruehlig]

ahh, I see. It's something with freenas, not an rsync specific thing. Either way though, plan out your rsync so you don't have conflicts (pushing and pulling at the same time), pushing to several other locations should be fine.

 

[logan54]

That could be the reason,
I've startet two rsync task to the same destination host at the same time. Just one rsync is visible in the process list. Now I start the rsync-tasks time shifted and it will work.

regards,
logan54

 

[BikerScott]

Thanks guys, I actually have my 3 rsync tasks set as "pull" jobs, all starting at staggered times, but because there is such a large amount of data to move, the first job is still running when the second tries to start, and therefore the second and third just don't start (I can see this because the data on the destination doesn't change). I had the same issue when I orginally had them set as "push" jobs. Seems to be a limitation (bug?????) in FreeNAS, which is most annoying.

 

[logan54]

Hello,
see revision 11846
http://freenas.svn.sourceforge.net/viewvc/freenas?view=revision&revision=11846
possibly the issue is solved in RC1 of FN8.2

regards,
logan54