RAID parameters in log files

[svdhoorn]

Hello all!

Does somebody know if the current RAID parameters of my ReadyNAS NV+ can be found in the logs?

I am looking for the following parameters:

- RAID type (XRAID, RAID4, RAID5, etc)

- Block order

- Parity delay

- Block size

- etc...

Mostly the RAID parameters I need to rebuild my RAID ;-). I've used many programs to 'auto detect' my missing RAID

parameters, but to no avail.

Many thanks!

Sander

[StephenB]

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@svdhoorn wrote:

Hello all!

Does somebody know if the current RAID parameters of my ReadyNAS NV+ can be found in the logs?

I am looking for the following parameters:

- RAID type (XRAID, RAID4, RAID5, etc)

- Block order

- Parity delay

- Block size

- etc...

dmesg.log says its RAID-4, and will tell you which drive is the parity disk - normally disk 3 (numbering from 0). 

VERSION/ID    : SB=(V:0.1.0) ID=<0e58e33c.00000000.00000000.00000000> CT:57334e6c
RAID_INFO     : DISKS(TOTAL:4 RAID:4 PARITY:3 ONL:4 WRK:4 FAILED:0 SPARE:0 BASE:0)
                SZ:3907008688 UT:00000000 STATE:0 LUNS:2 EXTCMD:1 LSZ:3907008686
LOGICAL_DRIVE : 0: B:0000000032 E:0004096000 R:1 O:1 I:1:000000000 DM:f
LOGICAL_DRIVE : 1: B:0004096032 E:3902912686 R:4 O:1 I:1:000000000 DM:f
PHYSICAL_DRIVE: 0: DISK<N:0/1,hdc(22,0),ID:0,PT:1,SZ:3907008688,ST: B:online>
PHYSICAL_DRIVE: 1: DISK<N:1/2,hde(33,0),ID:1,PT:1,SZ:3907008688,ST:  :online>
PHYSICAL_DRIVE: 2: DISK<N:2/3,hdg(34,0),ID:2,PT:1,SZ:3907008688,ST:  :online>
PHYSICAL_DRIVE: 3: DISK<N:3/4,hdi(56,0),ID:3,PT:1,SZ:3907008688,ST:P :online>
CURRENT_DRIVE : DISK<N:0/1,XXX(22,0),ID:0,PT:1,SZ:3907008688,ST: B:online>

There might be some more info scattered around, but I'm not seeing what you're looking for.

Is your array (and NAS) functioning?  Are you attempting to mount in a linux system?  Or something else?

[svdhoorn]

Thanks for you prompt reply!

@StephenB wrote:

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Is your array (and NAS) functioning?  Are you attempting to mount in a linux system?  Or something else?

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My NAS was stuck on booting (see this thread). I put in four (4) new discs and the NAS itself is functioning fine again now.

Unfortunately, up till now, I am unable to recover any data from my four old discs through R-Studio, ReClaiMe, etc. probably

because I do not have the right RAID parameters. My idea is to find the parameters from the current log files in the NAS with

the new HDDs and put those parameters in, for instance, R-Studio.

[StephenB]

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@svdhoorn wrote:

Unfortunately, up till now, I am unable to recover any data from my four old discs through R-Studio, ReClaiMe, etc. probably

because I do not have the right RAID parameters. My idea is to find the parameters from the current log files in the NAS with

the new HDDs and put those parameters in, for instance, R-Studio.

---

It's a bad sign that R-Studio and ReclaiMe aren't able to detect the RAID parameters.  Have you tried this: https://www.r-studio.com/Unformat_Help/finding_raid_parameters.html

@JohnCM_S and/or @Marc_V should be able to track down what you need though.  If they don't respond, I suspect R-Studio and ReclaiMe support both know this parameters, so they should be able to help.

[svdhoorn]

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@StephenB wrote:

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Have you tried this: https://www.r-studio.com/Unformat_Help/finding_raid_parameters.html

Yes, I have tried this, but no result. I hope @JohnCM_S and/or @Marc_V have the parameters for me. Thanks for your help!