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

aread22 · 2008-04-30 05:34:24

Hello,

My DNS323 has become a nice paper weight because of a CR/LF error. I was wondering if anybody is selling a prebuilt serial cable that I could
use to try and recover the DNS323. I am not good at soldering and I kind of need to recover the data ASAP. My only other option would be
to buy another DNS323 and see if I can try to reconfigure that to work with the hard drives..

Thanks

fordem · 2008-04-30 05:44:28

You had data in a RAID0 array and no backup ???? That is just begging for trouble.

I don't know what your linux skills are, but, it might be easier to try with a second DNS-323 - and if you do go that route you'll need to get a pair of disks and configure a RAID0 array, before swapping the existing disks over, I don't think the size of the disk is critical, at least it doesn't seem to be with RAID1, but I've never tried it with RAID0.

aread22 · 2008-04-30 05:51:48

Yeah I know I was asking for trouble when I set it up

I will buy another one tomorrow and try it with two 80GB drives as the 2 Seagate 750GB I had in there are quite expensive at retail.

I would still like to get a serial cable though...so if anyone is willing to sell one, give me an offer and I can paypal the money.

Thanks

Last edited by aread22 (2008-04-30 05:52:06)

index monkey · 2008-04-30 11:22:44

If you have access to a PC, you can mount one of the raid volume disks using
http://dlink.co.uk/?go=gNTyP9CnptFMIC4A … 7faIa1GdS8
Then copy the files as required.
Having recovered your data, I would try doing a reset with the recessed button on the back of the dns-323, as that should set the box back to defaults - (depending on how it got buggered up in the first place) good luck.

Last edited by index monkey (2008-04-30 11:35:55)

aread22 · 2008-04-30 12:05:16

Thanks for the reply index monkey. Actually index monkey what I have done is mounted the raid in knoppix and used mdadm-raid. Knoppix was able to see the raid
and all my files, so my data is pretty safe...As for the the unit, I have tried the reset trick and it is still bumming out, so I am going to try to RMA it.

Last edited by aread22 (2008-04-30 12:06:29)

jdoering · 2008-04-30 19:39:13

This is the cable I use; USB for only $25 pre-built: http://www.dionysusdesign.com/product_i … ucts_id/72 . It does require either soldering a header on with tiny wires (see parts numbers on the wiki under serial); soldering to tiny points on the underside; or (what I did first) carefully using pins from an different-sized-header minus the plastic and using electric tape.

I tried to reproduce my earlier failure to get more insight into exactly what happens and if there is any workaround without serial. But after two uploads of CRLF files; I still haven't re-bricked it. I guess there was something about the edits I did the first time that combined with the CRLF caused the bricking.

BTW is yours pingable when you turn it on?

-Jeff

fordem · 2008-04-30 20:16:07

index monkey wrote:
If you have access to a PC, you can mount one of the raid volume disks using
http://dlink.co.uk/?go=gNTyP9CnptFMIC4A … 7faIa1GdS8
Then copy the files as required.
Having recovered your data, I would try doing a reset with the recessed button on the back of the dns-323, as that should set the box back to defaults - (depending on how it got buggered up in the first place) good luck.

That might work with RAID1 or standard volumes, for JBOD and/or RAID0 (which is what he has indicated he has) he would need to mount both of the disks in a linux system and fiddle with mdadm - which is not something for a linux initiate to try.

aread22 · 2008-05-01 08:31:53

@jdoering
No mine is not pingable, I have tried a crossover cable to the box and have set my ip address appropriately but I still can't see the device. What actually happened was that I saved the configuration file to my pc, edited the "CF-JUMBO" setting and reuploaded the file. I was trying to see if setting "CF-JUMBO" to 1 or 2 would enable Jumbo Frames (Other post have indicated that it used to be in the web interface, but they took it out and it is still available in the configuration file)

@fordem
It actually wasn't to difficult to mount it in knoppix. I followed this guide for Raid 1 (http://www.howtoforge.com/recover_data_ … partitions) and instead of putting missing, I just put the name of my device (in my case /dev/sda2)

Thanks for all your help guys.

Last edited by aread22 (2008-05-01 08:56:37)

fordem · 2008-05-01 15:46:30

I don't know if you realise it - but - you're pointing me to a tutorial that specifically deals with recovering data from a single drive removed from a RAID1 array.

I'm not saying it won't work with two drives and RAID0 - but I do believe that it's going to need more changes than just the name of the device in place of missing - perhaps "level=raid1" earlier in the same line might need to be changed to reflect the fact that you're working with RAID0 - I have no idea.

Another possible problem area - this one is actually dependent on the motherboard used and it's BIOS - the tutorial specifically refers to ATA/IDE drives - and uses the term hda1, many but not all system boards can be configured to recognize a SATA drive as ATA, but others don't, and even those that do default to viewing them as SCSI - in which case it would have to be addressed as sda1.

My point is quite simply, there are many areas of uncertainty and a person familiar with linux might have more success than one without - either way, I believe it would have been simpler if the data were backed up.

Last edited by fordem (2008-05-01 16:05:23)

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

Announcement

#1 2008-04-30 05:34:24

anybody willing to sell a prebuild serial cable?

#2 2008-04-30 05:44:28

Re: anybody willing to sell a prebuild serial cable?

#3 2008-04-30 05:51:48

Re: anybody willing to sell a prebuild serial cable?

#4 2008-04-30 11:22:44

Re: anybody willing to sell a prebuild serial cable?

#5 2008-04-30 12:05:16

Re: anybody willing to sell a prebuild serial cable?

#6 2008-04-30 19:39:13

Re: anybody willing to sell a prebuild serial cable?

#7 2008-04-30 20:16:07

Re: anybody willing to sell a prebuild serial cable?

index monkey wrote:

#8 2008-05-01 08:31:53

Re: anybody willing to sell a prebuild serial cable?

#9 2008-05-01 15:46:30

Re: anybody willing to sell a prebuild serial cable?

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