DSM-G600, DNS-3xx and NSA-220 Hack Forum

St0o wrote:

3. I transferred 150GB from a pc with 300gb IDE HDD to the DSN-323 accross the network through the router (all hardlines no wireless) it took approx 6 hours!!?!? is this too slow? is it to do with the EXT3 file system?

It depends on your cables and router capabilites. The DNS-323 supports GigaBit (1000Mbps) and most often, home equipment is 10 or 100 Mbit. If you have 100 Mbit equipment then you can reach a theoretical limit of 12,5Mbyte/s (100Mbit/8) but in reality you'll end up at ~7-8Mbyte/s - depending on file size.

The specs for DNS-323 says 23Mbyte/s read and 15 Mbyte/s for write. But this will only be reached  at very special conditions. SmallNetBuilder has a good review of the unit with some figures.

(((150GB/6)/60)/60) = 6'944'444 bytes/s so I guess you're running on a 100Mbit LAN. Put a GigaBit switch between the NAS and your PC and you'll get better figures. Maybe 4 hours instead

I doubt you'll see any differences using SATA-I or SATA-II externally, but might have better figures internally - e.g. when coping a file from HDD_1 to HDD_2.

/Apan

St0o wrote:

Alot of questions I know but I dont want to waste another 6 hours and I want to know if it is running as well as it should?

Thanks

Actually, I am wondering if the unit is performing the way it's suppsed, too. Maybe We should start another thread about this...

Please enter my mental space regarding this device:

1. I love the fact that this website, and all the hard working people in it, exists. Thanks for all the help, awesome work and ideas you people put in here.
2. New features are great, either from D-Link or (more probably) the minds on this forum.
3. The hardware could not have been much better. IMHO though, they could have fitted a larger, more silent, and more efficient fan on the device. And better silicone feet maybe .

4. ------->   BUT IS MY DATA SAFE!?! (with good quality HD:s, latest FW, Raid 1)

I mean, if the device was working FLAWLESSLY with the current feature set, I would be more than happy. I meets ALL my needs as it is now. But how stable is it? I am referring to the current 1.02b firmware and Raid 1 setup. But still we are talking about D-Link support, bugs, instability...

Please tell me I am worrying for nothing.

//epatnor

epatnor wrote:

4. ------->   BUT IS MY DATA SAFE!?! (with good quality HD:s, latest FW, Raid 1)

RAID-1 is not, and should never be seen as, a backup replacement. You'll get better reliability and less impact when a disc crashes and hopefully no down-time. But, your data is not safe. What if the HD-Controler goes berzerk? Corrupted data on both discs. I've seen it happen - discs were intact but data was lost. Also, the RAID part is software and all software contains bugs (so does HW...)

You need to ask yourself how important is your data is and how fast do yeo need access to it in the case of failure. You should not think of the DNS-323 as a safe storage for your pictures or other sensitive information.

It's a great placeholder for backups of other systems and personally I think it's a great place to store redundant media. I mean, you can always rip your CD collection to mp3's agan if you have a total breakdown.

I, personally, has decided not to use RAID-1 and are instead using the discs as standalone. Sensitive and semi-sensitive data are backed up from HDD_1 to HDD_2 frequently. Sensitive data is also backed up to DVD's and stored at the office. Non-sensitive data is only stored on one of the discs. I've decided that mp3's and movies are redundant data which I can get again if I need to. It'll be tedious, but I then finally get a chance to scrap all those mp3's never used.

/Apan

so would it right to assume that the raid 1 mirror system is not as secure as I thought, that being the case, and going for the JBOD format how and what system do you use to mirror one disc.

That withstanding, my current set up Raid 1 useing x2 250gb and the supplied backup software which after the initial backup only adds changed files...

What are the views of the quality of the software to do the job

Thanks in advance

epatnor wrote:

Well. Might just as well do the JBOD or Separate Discs like you, and use the extra space. But how do you mirror data between the discs on the unit? I take it you do it outside the DNS323, like using Allways Sync in Windows?

Cheers for your input //epatnor

I guess a nice method to better backups is to buy two DNS units.
Put on in one location and another a bit further away.
Then install rsync on your primary machine.

On the second install a fun_plug debian with perl and rsync and rsnapshot.
This one will make it possible for you to keep multiple snapshots of your primary DNS.

Thoose snapshots are created with hard links which means it normaly only uses twice the amount of storage. All depending of course of how many files are changing.

Its a really cool solution and not too expensive.

Last edited by frodo (2007-03-12 14:27:44)