Rebuild RAID6 on TS 869 Pro QNAP

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Continuum
Posts: 3
Joined: Wed Jun 15, 2016 6:59 pm

Rebuild RAID6 on TS 869 Pro QNAP

Post by Continuum » Wed Jun 15, 2016 7:23 pm

I am trying to rebuild a RAID 6 configuration on a QNAP TS-869 Pro.

Does anyone know the default block size?

Do they use reed solomon or xor?

Any configuration help would be appreciated.

Corsari
Posts: 131
Joined: Wed Aug 14, 2013 4:18 am

Re: Rebuild RAID6 on TS 869 Pro QNAP

Post by Corsari » Thu Jun 16, 2016 12:31 am

What has been the source of the problem?

Have you played with the drives?

Some premises are needed.

E.g. Are all the drives healthy?

Thank you
Robert
Technical Manager @ Recupero Dati RAID FAsTec (Italy)

USEFUL RULES and GUIDELINES
1) What to check BEFORE begin a disk image/clone process [link]
2) Disks that are too slow while imaging/cloning them [link]
3) All my posts on this forum [link]

RForce
Posts: 31
Joined: Wed Jul 09, 2014 9:05 am

Re: Rebuild RAID6 on TS 869 Pro QNAP

Post by RForce » Thu Jun 16, 2016 12:56 pm

I'd first start by reading the RAID meta data to read the RAID config and be sure which drives were last online.

Continuum
Posts: 3
Joined: Wed Jun 15, 2016 6:59 pm

Re: Rebuild RAID6 on TS 869 Pro QNAP

Post by Continuum » Thu Jun 16, 2016 6:56 pm

I think the box failed. It is hard to get much from the client, but 4 drives were listed as failed, but all test OK.

As far as we know, the RAID has not been played with

Corsari
Posts: 131
Joined: Wed Aug 14, 2013 4:18 am

Re: Rebuild RAID6 on TS 869 Pro QNAP

Post by Corsari » Thu Jun 16, 2016 11:41 pm

In the doubt,

Obviously and as ever

1th and must have to do: clone all the drives and work with the copies (read directives in my signature's link at bottom)

Next you can use auto-detect features of R-Studio
Robert
Technical Manager @ Recupero Dati RAID FAsTec (Italy)

USEFUL RULES and GUIDELINES
1) What to check BEFORE begin a disk image/clone process [link]
2) Disks that are too slow while imaging/cloning them [link]
3) All my posts on this forum [link]

Continuum
Posts: 3
Joined: Wed Jun 15, 2016 6:59 pm

Re: Rebuild RAID6 on TS 869 Pro QNAP

Post by Continuum » Sun Jun 19, 2016 7:15 pm

Worked it out by studying the raw data.

If anyone is interested -
block size 64K
reed solomon -6 (not 6E)
Left Syncronous.

Thanks for the replies.

Corsari
Posts: 131
Joined: Wed Aug 14, 2013 4:18 am

Re: Rebuild RAID6 on TS 869 Pro QNAP

Post by Corsari » Tue Jun 21, 2016 12:49 am

Thank you for the feedback
Robert
Technical Manager @ Recupero Dati RAID FAsTec (Italy)

USEFUL RULES and GUIDELINES
1) What to check BEFORE begin a disk image/clone process [link]
2) Disks that are too slow while imaging/cloning them [link]
3) All my posts on this forum [link]

Data-Medics
Posts: 148
Joined: Tue Oct 20, 2015 10:13 am
Location: Providence, RI USA
Contact:

Re: Rebuild RAID6 on TS 869 Pro QNAP

Post by Data-Medics » Thu Jun 23, 2016 8:06 am

Yes, it's always nice when people post the follow up solution to the problem. Way too many topics on these forums are just left hanging with an open problem even though the case was eventually solved.

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