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Forum Discussion
bucky1
Feb 01, 2013Aspirant
When I delete a share it deletes my data as well
READYNAS NV+ v2 with 4 3TB WD Red RAIDiator 5.3 RAIDar 4.3.4 Setup as Flex Raid JBOD with 4 volumes c,d,e,f Accessing console (dashboard) with firefox 18 I been copying all my data onto these v...
Etz
Feb 03, 2013Aspirant
bucky wrote: Thanks for your reply Etz.
“Basically each share is a separate folder in NAS file system, you delete folder, you delete its contents”…..understand…however unintuitive it is!
Shouldnt be, as Samba generally works this way, regardless of platform. (Windows included) :roll:
Only thing is, dont mix server with client, if you delete share (not contents) on client PC, data wil remain intact, if you delete it on server, it will get actually deleteded.
bucky wrote:
So from here I guess questions become
1. If I delete a share and it deletes the data how do I recover that data as you have said in your last sentence? You said it still exists in console, what do you mean?
I was able to see it when SSH`ing into box, right after deletion and I could use "mv" command to move data to another existing share (folder)
Unfortunately it is too late for yours already, as you have done multiple reboots, etc...
I did some tests also after that, whole share (folder) with data will be completely gone (from filesystem) after reboot, so there is nothing to recover anymore, also ARM unit may act differently and folder may be gone immediately. I observed such behavior on Sparc based unit.
StephenB wrote: AFAIK there is no easy way to recover data from a deleted share. Certainly there isn't one built into dashboard. Recovering deleted files from linux file systems is not easy - there is a utility called extundelete which claims to do it, though I don't know how well it works or what it takes to install it on an NV+ v2. It would require ssh access.
It works pretty well, though I havent tried to install it on ReadyNAS.
Also it depends heavily on filesystem, basically lost files on EXT2 is almost impossible to recover from end-user point of view.
EXT3 & EXT4 have more hope to get at least something back.
There is also another tool called "extundelete" for those, witch I have not tried.
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