Main Server Drive Failure

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Tommo
Site Admin
Posts: 80
Joined: Wed Apr 09, 2014 6:17 pm

Main Server Drive Failure

Post by Tommo » Mon Jan 18, 2016 7:35 pm

The main server has suffered a drive failure, recovery isn't looking good this time, all attempts so far have failed. There are some further options for me to try but its looking like I'll need to rebuild the main server from backups. No idea how long this will take, it involves a lot of tireless work I hate to even think of beginning. I'll update this thread when/if things change...

How's your day been?

fiore
Posts: 3
Joined: Mon May 26, 2014 11:53 pm

Re: Main Server Drive Failure

Post by fiore » Tue Jan 19, 2016 5:11 am

Hi Tommo sorry to hear about the hard drive. I would like to donate 10.00 in Bitcoin to you for your hard work and efforts. Please put you bitcoin address in your response so I can send you a donation. I have enjoyed using your site for many years now and its been a part of my cryptocoin experience.

Tommo
Site Admin
Posts: 80
Joined: Wed Apr 09, 2014 6:17 pm

Re: Main Server Drive Failure

Post by Tommo » Tue Jan 19, 2016 10:39 am

Hi fiore,

Thank you for the offer, I don't usually accept donations but if anyone's willing to donate please use this address:

1LUu4QdVAv8SZWa9Dox4TxvzcHnu5Ak3SZ

Although this is all technically my problem and shouldn't come down to any miners having to contribute to get things back up and running, thank you to anyone who sends something through. Chances are a number of the wallets won't be recoverable so I'll need to refill them :/

Anywhose, latest status is I've booted into the Ubuntu live cd to try and rebuild the array, its reporting as 'clean, degraded' with 2 of the 3 drives in active sync. Sounds good in theory but in practice previous attempts to sync the third drive have failed with read errors, rebuilding while booted from the live cd has the third drive listed as 'spare rebuilding' but no progress status so I don't have a clue if its doing anything or simply sitting there saying 'rebuilding'.

Managed to boot into the OS yesterday and start an SSH session, directory listings work ok but attempts to access any files result in I/O errors... not going well :cry:

Fun times.

Tommo
Site Admin
Posts: 80
Joined: Wed Apr 09, 2014 6:17 pm

Re: Main Server Drive Failure

Post by Tommo » Tue Jan 19, 2016 12:10 pm

Super great news, I've been unable to recover the failed array. The machine is being wiped and re-imaged by the web host, I'm having an extra drive added in the process to run RAID-10 instead of RAID-5.

Not much else to say, other than its going to take a while to get everything back to normal.

ernie
Posts: 10
Joined: Wed Apr 09, 2014 10:14 pm

Re: Main Server Drive Failure

Post by ernie » Tue Jan 19, 2016 7:38 pm

Tommo wrote:Super great news, I've been unable to recover the failed array. The machine is being wiped and re-imaged by the web host, I'm having an extra drive added in the process to run RAID-10 instead of RAID-5.

Not much else to say, other than its going to take a while to get everything back to normal.
Ouch, I have heard of RAID-5 doing that often, not sure why. I use ZFS RAID myself, not a fan of hardware RAID controllers.

Did you loose much data since the last backup?


- Ernie.

fiore
Posts: 3
Joined: Mon May 26, 2014 11:53 pm

Re: Main Server Drive Failure

Post by fiore » Tue Jan 19, 2016 11:10 pm

Hey Tommo I just sent you the donation. I invite others to do the same as Tommo is putting in a lot of effort to keep the pool going. I have really enjoyed mining at your pool and look forward to doing more mining there in the future. Thank you for your efforts.

Tommo
Site Admin
Posts: 80
Joined: Wed Apr 09, 2014 6:17 pm

Re: Main Server Drive Failure

Post by Tommo » Wed Jan 20, 2016 9:13 am

ernie wrote:
Tommo wrote:Super great news, I've been unable to recover the failed array. The machine is being wiped and re-imaged by the web host, I'm having an extra drive added in the process to run RAID-10 instead of RAID-5.

Not much else to say, other than its going to take a while to get everything back to normal.
Ouch, I have heard of RAID-5 doing that often, not sure why. I use ZFS RAID myself, not a fan of hardware RAID controllers.

Did you loose much data since the last backup?


- Ernie.
I'm running software RAID, can't say I've been happy with the reliability of SSD's in a server environment, seems the constant DB/wallet writes are too taxing on them.

I have automated daily backups of the DB and the individual coin DB's are on another server so no data loss there, the main issue is setting up all the config of the old server. Node stratum/config for each individual pool/multipool switcher/multipool calculator/block chains and code of each coin running on this server/likelihood of corrupt wallets restored from backup/ugh the list goes on...

Tommo
Site Admin
Posts: 80
Joined: Wed Apr 09, 2014 6:17 pm

Re: Main Server Drive Failure

Post by Tommo » Wed Jan 20, 2016 9:13 am

fiore wrote:Hey Tommo I just sent you the donation. I invite others to do the same as Tommo is putting in a lot of effort to keep the pool going. I have really enjoyed mining at your pool and look forward to doing more mining there in the future. Thank you for your efforts.
Many thanks for your support fiore, a little bit goes a long way :)

kerqbut
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Joined: Fri Dec 28, 2018 11:33 am

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Post by kerqbut » Sat Dec 29, 2018 8:36 pm

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AbakbaloTiC
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