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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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SOFTWARE RAID 5 Parameters required FreeNas

November 1st, 2012, 5:22

Hi Guys,
I have a FreeNas 0.7.2 with a Software RAID 5 which crushed.
I am trying to recover the data using R-STUDIO 6.1 but i need few parameters to handle that.
What are the default parameters of the Software RAID 5 UFS(default on FreeNas)?
i know that the strip size is 128K but i don't know the rest, like
What is the parity direction, left or right, and dynamic or standard?
Start RAID header on start of disk, end of disk etc.

Would love to get these parameters if someone have them.

Cheers,
Oded

Re: SOFTWARE RAID 5 Parameters required FreeNas

November 1st, 2012, 7:35

Reclaime Free RAID software might fing the settings for you? if so the you can imput them in to R-Studio
http://www.freeraidrecovery.com/

Re: SOFTWARE RAID 5 Parameters required FreeNas

November 1st, 2012, 8:21

thx loki, i already tried this software, but it doesn't recognize it properly, it thinks that it is a 4 disk RAID while it has 3.
I'll keep playing with it to try and get something.

Cheers,
Oded

Re: SOFTWARE RAID 5 Parameters required FreeNas

November 1st, 2012, 8:39

DTI do a software to check for stale drive?
http://www.youtube.com/watch?feature=pl ... OCDg19ArhA

Software costs $9.99
https://www.e-junkie.com/ecom/gb.php?i= ... e&cl=31534

Could also try USF Explorer?
http://www.ufsexplorer.com/download_stdrr.php

Re: SOFTWARE RAID 5 Parameters required FreeNas

November 1st, 2012, 10:14

Do you have full clones of the drives? You can PM or contact me if you want remote support.

Re: SOFTWARE RAID 5 Parameters required FreeNas

November 2nd, 2012, 5:37

Thanks Luke, i really appreciate your offer.
I managed to resolve that. I changed the drives order where they were connected to the sata ports.
Reclaim managed to analyse it and gave me the right parameters.
I fed them into UFS Explorer and got 99% of the data.
Thx for the help.

Re: SOFTWARE RAID 5 Parameters required FreeNas

November 2nd, 2012, 7:46

Well done thats great news :D

Just out of curiousity what were the settings if you dont mind me asking?
Just so I can add it to my documentation


Thanks

Loki

Re: SOFTWARE RAID 5 Parameters required FreeNas

November 2nd, 2012, 8:55

Hi Loki,
Sure mate, i have it back at the office in a text file, will send it to you on Monday.

Enjoy your weekend,
Oded

Re: SOFTWARE RAID 5 Parameters required FreeNas

November 2nd, 2012, 9:18

odedshankar wrote:Hi Loki,
Sure mate, i have it back at the office in a text file, will send it to you on Monday.

Enjoy your weekend,
Oded


Thanks mate :D

You have a good weekend also


Loki
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