Backup Central

On 22/01/12 17:13, Charles Stanton wrote:
helmut,

it's some WD custome linux on the WD Sharespace NAS - can't find out
what exactly the OS it uses ext3. the datavolume is a raid 0 - must
be created by mdadm. if you look at the top of the thread i am
getting cross device link errors. i am trying to use it as an nfs
share/target for rsnapshot running on Fedora 14 NAS (vortexbox). the
error is when rsnapshot runs the 2nd time. rsnapshot is running on the
Fedora box,. the first run works just fine. thanks

Just hazarding a guess, your raid is not being presented to the outside
world as one drive, but as two.
my two cents worth


On Sun, Jan 22, 2012 at 11:50 AM, Helmut Hullen<Hullen < at > t-online.de> wrote:
Hallo, Charles,

Du meintest am 22.01.12:

So the verdict is that rsnapshot won't work on the WD Sharespace?

I don't know this system/machine/application/...
What kind of file system does it use?
Whar kind of OS does it use?

Viele Gruesse!
Helmut

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So the verdict is that rsnapshot won't work on the WD Sharespace?

Maybe. The root problem is that the filesystem (and also device /dev/md0) is not behaving as expected for a normal Linux system. We don't know if the WD Sharespace is a funky piece of hardware, or if there is some other underlying issue. Why does the inode information look wrong for an EXT3 filesystem?

According to this review, it uses an "unmodified EXT3 filesystem":

http://www.smallnetbuilder.com/nas/nas-reviews/30586-western-digital-sharespace-reviewed

I can't think of any reason WD would mess with the filesystem. It would cost them money, but at what benefit? So it might be possible to get it to work.

Perhaps your particular unit is broken somehow, and exchanging it for a new one would fix the problems. Or, I've read the firmware can be updated. Maybe you are running an old, buggy version of the firmware?

If it were me, I'd do this:

1. Try updating the firmware to the very latest, and (if possible) do something like a "reset to factory defaults" to clear any possibly-broken configuration. Try again.

2. If you can conveniently exchange it at a retail store, then do that as the next step. Tell them it isn't working right and you want a different one. They try again from scratch; run the commands we asked about (again), and see if the result look more like a Linux box.

Failing that, I'd give up. The hardware all looks standard enough, so it could probably be made to work... assuming you have an EE degree and know how to do embedded software development


--Derek

On 01/22/2012 08:37 AM, Charles Stanton wrote: So the verdict is that rsnapshot won't work on the WD Sharespace?

it does appear i can link with single commands. any other suggestions?

thanks

On Tue, Jan 17, 2012 at 1:57 PM, Helmut Hullen <Hullen < at > t-online.de> ([email]Hullen < at > t-online.de[/email]) wrote:
Hallo, David,

Du meintest am 17.01.12:

/ $ df
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/md0                  2188      2188         0 100% /old
/dev/md0                202175    117377     74360  61% /

That's weird. Mounting the same filesystem in two places is just
Dodgy (and I don't think it's possible on most Unixe-a-likes - but
it's sufficiently dangerous that I'm not going to try to check this!)

That's possible - I've just tested it. But "df" then shows the same
informations in both lines, the only difference is the mountpoint.

In the above case the lines look like two different devices - and that's
strange.

Viele Gruesse!
Helmut



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On Sun, Jan 22, 2012 at 10:54:02PM -0800, Derek Simkowiak wrote:

Failing that, I'd give up. The hardware all looks standard enough,
so it could probably be made to work... assuming you have an EE degree
and know how to do embedded software development

On a somewhat related note, I recently upgraded from some fancy RAIDy
disk boxes to just a bunch of 3.5" SATA disks hanging off of SATA/USB
adapters, with a small computer attaching them to the network. I
happened to use a Mac Mini, because that's what I had available at the
time, but this is the *perfect* application for a Raspberry Pi once they
go on sale in a coupla weeks time.

I was prompted to upgrade by needing more disk space, but I decided to
go the way I did because it was cheaper and would give me more
flexibility in the future.

--
David Cantrell | A machine for turning tea into grumpiness

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