NAS reset on a D-Link DNS-323

This case has a number of important things to learn.

The PC that usually access DNS-323 crashed and I have to replace it. However, with the new PC, I’m not able to detect DNS-323 using using the Easy Search utility. Thinking that the config of DNS-323 is corrupted, I reset the unit with the reset button.

Still unable to find DNS-323 on Easy Search, so access it using IP address and got a shock. My personal files are gone. Only those that I share publicly are visible. Conncet the HDD to PC using SATA-USB and tried reading the disk using R-Studio but it looks the same as reading it thru the DNS-323.

Can anyone advise how can I recover my files

First of all, if the system was not affected by the failure, it does not need repairs. It was the PC that failed, not the NAS. The NAS was in all likelihood fine before reset. The trick to figure out what is the IP address of the NAS and then access it by IP should have worked without reset.

Finding the right IP is sometimes tricky. Obvious steps are to look at the router DHCP assignments table, which lists IP addresses given out by the router, if the network is using dynamic IPs, or you can go as far as a ping/port scan if addresses are static and you do not keep track of addresses. In case of static IPs, the best place to write down the IP for the NAS is on the NAS itself.

You can try Home NAS Recovery to see if it finds missing files (if the undelete is better than that in R-Studio, this might work), but if not, the data is lost. EXT filesystem does not go easy on deleted files.


Single-disk Synology with bad sectors

A question of how – Mount, Find & Recover DATA in HDD outside of Synology Box

[With] a Synology … run into issues or Hard Drive corruption/ error in sectors etc. where I have had to pretty much remove the Drive which Synology refuses to read or work with. The question is, assuming I am able to detect the Hard Drive and assuming that hardware is still kind of functional, what way can I LOAD/ MOUNT the Drive (under Windows or Linux OS etc) on a PC/Laptop? (What tools/ software should I used to do that?)

Home NAS Recovery will work for you. Syngle-disk Synology is pretty standard setup. I have to recommend a PC, not a laptop. When the drive is suspected to have bad blocks, the common wisdom is that USB is to be avoided, and laptops are mostly limited to USB.

I’ve used several Partition Management tools and I can see 4 partitions inside the Disk as created by Synology.

That’s normal, and does not provide any significant additional information.

[various ext4 reading programs] none of which have been able to recover data (geeksnerds, stellar phoenix, linux reader, explore2fs, ext2explore, none of which allowed me to copy, recover or even see data files).

That depends on how bad the disk is damaged. Also some of these programs may be not quite compatible, especially if we are talking about modern Synology with EXT4. While EXT3 is identical to EXT2 in all respects concerning read-only driver, EXT4 is different.

[also] a Linux / RAID based solution that worked for someone, but not for me.

If Synology with its own, specifically adapted Linux, refused the disk, then most likely any stock Linux distro will also refuse the disk.

Basic Synology case

This is the simplest possible example of recovery, the unit being unidentified Synology.

Hard drive in my synology nas crashed yesterday. The disk was installed as a basic disc without protection. … storage manager … showed the disk as “not initialized”. I took out the disk and connected it to my windows computer to try recovering the files. I used “Ext2 volume manager” to see the hdd and it shows me 3 partitions … EXT3, SWAP and RAW. On the EXT3 there are some files but not the one I had saved on the hard drive.

How do I find the files that I had saved on the hdd?

And how do I know that my hard drive really is broken? The synology storage manager is not able to finish S.M.A.R.T Test.

As I do fairly often, I will address the last question first. If the SMART test cannot be completed, the drive is broken.

As far as partitions go, first one is most often firmware. SWAP is just what it says on the tin, and RAW is either data (which is probably maintained by md-raid so it was not recognized) or something broken. In any case, the first EXT3 partition is useless for recovery; you will get back some Linux binaries, not your data. On a bright side, Home NAS Recovery can see through the md-raid structures, identifies the partitions on its own, and reads EXT quite well.

Recover data from LaCie 1TB NAS

Neil seems to have a problem with its 1TB LaCie NAS.

… Lacie NAS 1TB drive… I can’t even get a connection to it. I … put [the drive] into my computer using a free SATA port. … I can see the drive only in Disk Management…Windows tells me that there is 100% free space available…How can I possibly recover my data from this drive?

What Filesystem is Lacie using?

Last question first, LaCie uses EXT3 or XFS filesystem, depending on the exact model/firmware.

As far as recovery goes, we can do that, since this is a NAS version of the LaCie.  If it were a USB/Firewire/Thunderbolt version, we would have passed the opportunity. As it is, single drive NAS with EXT3 (or XFS) is pretty easy. The damage should be not that bad, because not being able to connect to the unit at all suggests some kind of instantaneous and total failure of either the unit itself or firmware in it. Such cases tend not to damage the filesystem, because there is no time to do the said damage.

As a side note, Disk Management does not show free space for EXT3, or any other Linux filesystem. It does not know how to read them, so it assumes all the space is free.