How can we recover data from Hard Drives were on RAID 10 without controller?
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@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
Not sure if I can do something on Device without sending the device to QNAP, like booting from Linux on USB etc. to access the drives from there.
In theory, QNAP uses standard MD RAID, so it's plausible.
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@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
Is it possible to connect these SATA hard drives to PC and recover data?
Yes, if you carefully keep everything read only, you can theoretically image the drives using dd and try to reconstruct the array separately.
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@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
Again, since it is RAID 10, it will have a pair (for striping), is it HDD 1 and HDD 2 will be pair one ? HDD 3 and HDD 4 will be pair 2?
Only QNAP will know that one. I bet no one has it documented.
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@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
Once I connected, how can I combine data from HDD 1 and HDD 2 as singe drive to get the data? with any software?
Only MD RAID. Make sure it is set to read only or you can EASILY hose the images.
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@bnrstnr said in How can we recover data from Hard Drives were on RAID 10 without controller?:
Is buying another QNAP box out of the question?
I know with Synology you can move the drives to a new Synology box and restore everything from the drives. Assuming it's the box that went bad and the drives are still good, of course.
I assume QNAP does this identically.
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@RojoLoco said in How can we recover data from Hard Drives were on RAID 10 without controller?:
If you have a server with a hardware RAID controller, you might be able to connect all 4 and import the foreign configuration. We have done this on different Dell models when in a pinch (funny how those dev systems that didn't need to be backed up suddenly became mission critical to recover).
It's a QNAP, situation is not on Server. Even if it is fine, just in case, I don't have RAID Controller that supports RAID 10.
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It's not very smart using RAID10 on a small NAS. I bet you don't have more than a 1Gbit ethernet connection which means that you'll saturate it with RAID1 using modern harddrives. So you added complexity and risk without any benefit.
If you had used RAID1 you could just pop the drives in another linux system and read the data.
I'm also not a fan of putting the OS on data drives on a dedicated fileserver/NAS. But that is how they do it. So maybe you have a corrupt OS, maybe you have a hardware problem on the NAS, maybe you have one or several drives that are bad.
Right now it's better to send it away if you need to recover data from the drives. I don't know if QNAP has that service.
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@CCWTech said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@scottalanmiller said in How can we recover data from Hard Drives were on RAID 10 without controller?:
This is when you call Allen at @CCWTech
Thanks! Yes we do data recovery. https://ccwtech.com/data-recovery-services/
Well, we are in other side of globe from you I believe, no way of getting service. Any suggestions would be great.
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@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@CCWTech said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@scottalanmiller said in How can we recover data from Hard Drives were on RAID 10 without controller?:
This is when you call Allen at @CCWTech
Thanks! Yes we do data recovery. https://ccwtech.com/data-recovery-services/
Well, we are in other side of globe from you I believe, no way of getting service. Any suggestions would be great.
Where are you?
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@bnrstnr said in How can we recover data from Hard Drives were on RAID 10 without controller?:
Is buying another QNAP box out of the question?
I know with Synology you can move the drives to a new Synology box and restore everything from the drives. Assuming it's the box that went bad and the drives are still good, of course.
It is available with QNAP as well.
Don't see any chance to buy it soon, in between I need to look at data if possible. SMB IT always sucks at budget, if you have other expense at that time, you will need to wait for sometime to get new things.
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@Pete-S said in How can we recover data from Hard Drives were on RAID 10 without controller?:
Right now it's better to send it away if you need to recover data from the drives. I don't know if QNAP has that service.
QNAP wipes drives if you sent to them, so no.
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@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@RojoLoco said in How can we recover data from Hard Drives were on RAID 10 without controller?:
If you have a server with a hardware RAID controller, you might be able to connect all 4 and import the foreign configuration. We have done this on different Dell models when in a pinch (funny how those dev systems that didn't need to be backed up suddenly became mission critical to recover).
It's a QNAP, situation is not on Server. Even if it is fine, just in case, I don't have RAID Controller that supports RAID 10.
Hardware RAID will definitely erase all your data. It's only software MD that you can use in this situation.
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@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
SMB IT always sucks at budget, if you have other expense at that time, you will need to wait for sometime to get new things.
Actually, what burned you here was overspending, not being cheap. QNAP is more expensive than a small equivalent Linux general purpose server.
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@scottalanmiller said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
Once I connected, how can I combine data from HDD 1 and HDD 2 as singe drive to get the data? with any software?
Only MD RAID. Make sure it is set to read only or you can EASILY hose the images.
How about using these tools on Windows? I would prefer graphical in this situation than Linux CLI.
http://www.freeraidrecovery.com/library/raid10-recovery.aspx
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@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@scottalanmiller said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
Once I connected, how can I combine data from HDD 1 and HDD 2 as singe drive to get the data? with any software?
Only MD RAID. Make sure it is set to read only or you can EASILY hose the images.
How about using these tools on Windows? I would prefer graphical in this situation than Linux CLI.
http://www.freeraidrecovery.com/library/raid10-recovery.aspx
You can try it, but remember only on a CLONE of your drives.
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@Pete-S said in How can we recover data from Hard Drives were on RAID 10 without controller?:
It's not very smart using RAID10 on a small NAS. I bet you don't have more than a 1Gbit ethernet connection which means that you'll saturate it with RAID1 using modern harddrives. So you added complexity and risk without any benefit.
If you had used RAID1 you could just pop the drives in another linux system and read the data.
I'm also not a fan of putting the OS on data drives on a dedicated fileserver/NAS. But that is how they do it. So maybe you have a corrupt OS, maybe you have a hardware problem on the NAS, maybe you have one or several drives that are bad.
Right now it's better to send it away if you need to recover data from the drives. I don't know if QNAP has that service.
I was not sure that I will not gain anything if I use 1Gbit with RAID 10, anyway, can utilize other network cards on it, in that case. But, with 4 hard drives on RAID 1 will give less space to use?
I assume, QNAP has it's OS on the device, not on Hard Drives I inserted, isn't it?
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@CCWTech said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@CCWTech said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@scottalanmiller said in How can we recover data from Hard Drives were on RAID 10 without controller?:
This is when you call Allen at @CCWTech
Thanks! Yes we do data recovery. https://ccwtech.com/data-recovery-services/
Well, we are in other side of globe from you I believe, no way of getting service. Any suggestions would be great.
Where are you?
Middle East.
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@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@CCWTech said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@CCWTech said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@scottalanmiller said in How can we recover data from Hard Drives were on RAID 10 without controller?:
This is when you call Allen at @CCWTech
Thanks! Yes we do data recovery. https://ccwtech.com/data-recovery-services/
Well, we are in other side of globe from you I believe, no way of getting service. Any suggestions would be great.
Where are you?
Middle East.
That's a region. If you tell me where you are I may be able to find a DR shop near you.
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@scottalanmiller said in How can we recover data from Hard Drives were on RAID 10 without controller?:
@openit said in How can we recover data from Hard Drives were on RAID 10 without controller?:
SMB IT always sucks at budget, if you have other expense at that time, you will need to wait for sometime to get new things.
Actually, what burned you here was overspending, not being cheap. QNAP is more expensive than a small equivalent Linux general purpose server.
Might be general impression on NAS made me to go with NAS.
It seems, you are suggesting here like below scenario?
- have a server which takes more hard drives, let it be lower end server
- install hardware raid controller
- insert as many hard drives the raid controller or server supports
- install linux on top (prefably) CentOS, and run SMB Shares
If yes, I have similar plans with Dell PE T310 older server I have.
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GetDataBack with RAID Reconstructor is a utility set we've used to recover data from a set of drives that were originally in a NAS box.
