Lacie 5Big2 Failed After Firmware Update

[unlucky1]

It worked!! I changed the port to one not taken and I'm in. I'm going to try to move files and see what happens.

[Mijzelf]

Duh me? Is that Spanish? ;)

[fvdw]

I achieved a download speed of 20 MB/s on a nwsp2 , on 5big2 this will be higher (faster CPU)

[Mijzelf]

Only 20? How many threads? What is the cpu load?

[unlucky1]

Duh me? Is that Spanish?

No, Catalan ;)

That seemed to do it. I need to see if I have another drive. If not, I need to take the USB I have mounted on the Lacie. Would that be a problem? I'd need to have to take the gzipped files off first before formatting it though. The ones of the start and end of the disks. I made another ftpd to port 20 and made the directory the USB drive. I'm copying the stuff off it now.

[Mijzelf]

Would that be a problem?

Not at all. Just umount it and pull the plug. I suppose you are going put NTFS on it again?

[fvdw]

Only 20? How many threads? What is the cpu load?

cpu load was around 95%
But on samba or normal ftp I don't get much more speed from the nwsp2.
On the 5big2 it is around 50 MB/s

[Mijzelf]

Hm. Apparently the throughput doesn't scale up nicely. I can saturate my 100Mbit network at a whopping 11MB/sec with only 25% cpu load on my nwsp2.

Anyway, 50MB/sec is twice as fast as the usb disk, which brings down the copying to only 15 hours!

[Mijzelf]

There is a possibility to mainly automate the process I wrote about here, under 'Data corruption'.

I can write a script which will assemble the array in 5 different ways, and calculate the md5sum of all files on the disk for all 5 possibilities.
This will give 5 files with on each row a filename (including path), and it's md5sum.

The nas will need several days for that, I think. (calculating an md5sum for 5*3TB data is quite a bit of work)

Then the manual part:
Windiff or winmerge or a similar tool can tell if there are differences and which files are involved. Then you'll have to manually check if the file(s) is corrupted, and if so extract the file with a different checksum from the right raid incarnation.

Let me know if your are interested.

[unlucky1]

Ugh! Lacie rebooted itself. I suspect overheating. I've got 2 fans pointed at it now although to be honest, the 1 I had was shut off because the baby was poking fingers into the blades. I've addressed that now by making him wear mittens the whole time ;) So now I need to restart the whole process. Also, the only FTP client that didn't crash after a few thousand files was WinSCP!! Yeah for opensource!!

So far, nothing seems corrupted but I won't know until further inspection. I'm only getting about 26Mb per second but at least it's working. But I like the idea o a script to certify the data. But what would be really handy right now is a tool that makes the raid and then loads ftp because I'm doing all these steps manually! ;)

Again, thanks so much guys for your help and I'll keep you posted.