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[max85]

Hello,

I have some problems with my new DNS-345, i hope someone could answer me

So, i have put in 4 HDD Seagate 2To (they are in the compatibility list), when i want to format them in RAID 5 with the web interface, it's time to cry (my bank account too )

First time, it crash after 32% of formatting, now it crash at 15.
At this point, we can't ping the NAS, reboot it is necessary (Many reboot, 2 or 3 times ...)

I have try to format it with 4 different computers, and 3 switch + 3 ip range different (The woman at the support was so useless, 1 hour on call to ... nothing !)

SMART Test (Quick) is OK, no HDD failure.


If someone have something to try .... i'm ready !

[JavaLawyer]

I really don't know if this will help, but you can try mounting and reformatting each HDD in a Windows PC to remove any traces of the DNS-345's earlier formatting attempts.  The DNS-345 formats HDDs using the Linux file system and won't recognize FAT or NTFS partitions.  After you cleanse all four HDDs, try reformatting your RAID array.

Please post your results.

[max85]

Thanks for your response.

I have formatted the 4 drives in NTFS under Win 7 and now, it crashes before 0%, it's because of the NTFS format ?
I can try another formatting system (EXT4 ?) with a real tool like partiton magic for example.

[JavaLawyer]

An NTFS formatted HDD will not cause the DNS-345 to crash. The DNS-345 only recognizes the EXT file system. Any Windows formatted HDD will be unrecognizable, forcing a prompt to reformat.

At this point, I would reset the DNS-345 to the factory defaults. Press and hold the reset button on the rear of the unit for > 8 seconds. Also, upload a fresh copy of the latest firmware to rule out any corruption.

If the RAID-5 array fails again, try creating a simpler RAID array (e.g. RAID-1) to make sure everything is working properly.

[max85]

So i have install the latest firmware (maybe Beta, it's not a problem), after a reboot, it crashed again but now, it seems i have win in stability. (1 hour without crash)

He's trying to make 2 Raid 1 (HDD 1 -> 2 and 3 -> 4). 0-32% in 6-7min, and he jumped to 42% (35min now ^^) and the 2nd HDD has his light off.

This morning when it crashed a 32% the 4th was off, so a i switched the 2 and 4, we can confirm that the drive has a problem somewhere ? Raid 5 must require much precision, so the NAS crash because of that maybe.

Maybe i can try to buy a new one before make an RMA on the drive.

Thank you for your fast reply, i will keep you inform

Max.

[JavaLawyer]

Hopefully the new HDD is causing these problems.
Please post back when you have a new HDD to test.

[max85]

Me again ^^

So i have replaced the corrupted HDD.

New Raid 5 in progress .... 60% .... crash ... i've done what you said, i've rebooted the NAS and create 2 Raid 1 ... OMG it succeed !! New Raid 5 again ... Formatting completed !

I going to play with it, i hope it will not crash between my hands ^^

Thanks for you IT and psychological support 

[JavaLawyer]

I'm glad everything worked out.

Please post back in a few weeks and let us know how stable things are. . . Not having used the DNS-345, I'm also curious how the performance is (upload and download average mbps throughput).

Good luck