Re: [BackupPC-users] backing up to NAS

The ReadyNAS has CIFS,NFS, and Rsync capability. For the moment I am just mounting the ReadyNAS NFS share onto the Backuppc server. The Backuppc server is using rsyncd to connect to the file server, which is a windows xp machine.

Backuppc server has the following specs:

AMD Athlon(tm) 64 X2 Dual Core Processor 4000+ 2.1GHz
775424 KB RAM

The file server uses cygwin/rsync and has the following specs.

AMD Athlon(tm) 64 Processor 3800+ 2.4 GHz
3GB RAM

The ReadyNAS has 256MB RAM.

`find /path/to/data | wc -l` shows this number:

149073

does it look like i have enough RAM???

(On a side note, even though i got the backup aborted errors, the job seems to have started up again automatically -- check the logs i posted earlier. I decided to manually stop the job until i researched this problem further. I noticed after stopping the job, browsing the backup files showed a lot of my files are all there. If you look at the log carefully it shows that only the A-F/ folder caused the backup job to abort. The job then started again on the next day at 8pm, which is what $Conf{WakeupSchedule} is set to and the A-F folder seems to have finished successfully because the next entry in the log shows the G-N/ folder and then the O-Z/ folder. So no errors for A-F folder the second time around.)

should i let the backups continue and see what happens???

On Mon, May 5, 2008 at 9:29 AM, dan <dandenson AT gmail DOT com> wrote:

does the ReadyNAS have rsync or are you just mounting up the NFS share locally? If you are trying to use rsync then I suspect that the ReadyNAS doesn't have enough RAM. Also, how much RAM does your system have? and are you using rsync? rsync eats up RAM like candy when you have a high file count. would you do a `find /path/to/data|wc -l` and post that number? if you take than number and multiply by 100, then divide by 1024 and you will see how many KBytes of RAM required for a single sided rsync. if you are using rsyncd remotely and rsync locally, then you need this amount of ram on each side.
On Mon, May 5, 2008 at 7:12 AM, Leandro Tracchia <ltracchia AT gmail DOT com> wrote:
well it turns out the terastation does not even support NFS, however it does support Windows shares. I do have another NAS, a ReadyNAS which does support NFS so i decided to try this one out and started a full backup job to let it run over the weekend. Uncompressed, the data needed to backup is about 475GB. This is actually 3 different shares (A-F\: 250GB,G-N\:63GB,O-Z\: 160GB). Well hoping to see a successful backup monday morning, i came to work seeing that the backup had failed! it ran for about 5 hours until i got some "PIPE" error and then after that i got a "Child exited prematurely" error.

2008-05-02 11:56:49 full backup started for directory A-F
2008-05-02 17:07:38 Aborting backup up after signal PIPE
2008-05-02 17:07:40 Got fatal error during xfer (aborted by signal=PIPE)
2008-05-02 17:07:45 Saved partial dump 0
2008-05-02 20:00:06 full backup started for directory A-F
2008-05-02 22:54:40 Got fatal error during xfer (Child exited prematurely)
2008-05-02 22:54:45 Backup aborted (Child exited prematurely)
2008-05-02 22:54:45 Saved partial dump 0
2008-05-03 20:00:02 full backup started for directory A-F
2008-05-04 17:14:22 full backup started for directory G-N
2008-05-04 22:46:52 full backup started for directory O-Z

fortunately it seems to have saved the partial backup and automatically restarted the job. though, i'm not sure what these errors mean or if they have anything to do with the NFS mount or if these errors are even documented anywhere or if they will happen again.

any suggestions???

(thank you for all the help so far, btw!!)
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