Hi - I am new to all of this (Linux, Amahi and Greyhole). I have made the switch from WHS 2011 to Amahi, and so far I am very happy. I have almost 3TB of data to protect. I have setup Greyhole with the LZ on root (but plenty of space for it), and 4 SATA drives as the storage pool totaling 9TB. Everything has been copied over successfully, and Greyhole has made the extra copy.
What I want to understand is what would happen if a drive in the storage pool goes bad? Does Amahi or Greyhole let me know that a drive has gone bad? Does Greyhole then recreate the files that were on the bad drive and move them to good drives in the pool? Or would this be a manual recovery of sorts?
Thanks!
~Jay
What does Greyhole do when a drive goes bad?
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- Posts: 10
- Joined: Tue Oct 20, 2015 6:01 am
Re: What does Greyhole do when a drive goes bad?
If a drive goes bad in the greyhole pool you'd lose that data on that drive only.This is why it's recommended to keep 2 copies in the pools of data you don't want to lose.So you'd still have access to that data(different drive). I'm unaware of Greyhole/Amahi giving out warning that drive going/gone bad.But it could be something that I don't know about.
Once you replace the bad drive with a new one Greyhole will automatically re-balance the data across the disks in the pools.Recreating copies on the new disk if necessary.You can do this manually also. It is always a good idea to have current backups of your data stored else where.
Info can be found here. https://github.com/gboudreau/Greyhole/wiki
Once you replace the bad drive with a new one Greyhole will automatically re-balance the data across the disks in the pools.Recreating copies on the new disk if necessary.You can do this manually also. It is always a good idea to have current backups of your data stored else where.
Info can be found here. https://github.com/gboudreau/Greyhole/wiki
Server: AsRock N3700(4-core) mini-itx,8GB crucial RAM,Iocrest 8-port expansion card,450W corsair psu, x4 3TB WD green drives. All in a Sunbeam UFO case. (Amahi 8).
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- Posts: 78
- Joined: Sat Jan 31, 2015 5:35 pm
Re: What does Greyhole do when a drive goes bad?
Unfortunately, I found out first hand that amahi does not provide indication of drive errors.
I use my HDA primarily as a media server, and I noticed files would mysteriously disappear then reappear. The amahi dashboard didn't provide any error indications,. However, there were loads of errors when I connected a monitor to the server. These errors do not show when connecting by SSH, only with a physically connected monitor.
I use my HDA primarily as a media server, and I noticed files would mysteriously disappear then reappear. The amahi dashboard didn't provide any error indications,. However, there were loads of errors when I connected a monitor to the server. These errors do not show when connecting by SSH, only with a physically connected monitor.
Re: What does Greyhole do when a drive goes bad?
That is correct. You won't find many headless servers that do provide drive monitoring by default. Usually have to add that piece manually.Unfortunately, I found out first hand that amahi does not provide indication of drive errors.
We do have a feature request to add that functionality, but it's a bit complicated as a one-click app.
The Disk Error Alerts wiki guidance might help. I use it myself and also phpSysInfo with the drive monitoring piece as well.
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My HDA: Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz on MSI board, 16GB RAM, 1TBx1+2TBx2+4TBx2
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My HDA: Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz on MSI board, 16GB RAM, 1TBx1+2TBx2+4TBx2
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