[CLOSED] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers

[HellDiverUK]

supermicro makes some nice hardware but SSD still has not made me all giggidy in the server world. There lifespan still is not where i want it.

Are you kidding me with raid1?    Why not raid 6? raid5 is too glitchy

SSDs are fine if you buy Enterprise drives, which are massively over-provisioned.

RAID1 is perfectly fine too - if you've got good backups, it's very difficult to beat as far as performance goes.  The servers here at work run a pair of 300GB 2.5" 15k SAS drives in RAID1, and they run very well, but they're only general purpose servers - no big database stuff.  Data is on a 8 spindle RAID6.

[buyer99]

supermicro makes some nice hardware but SSD still has not made me all giggidy in the server world. There lifespan still is not where i want it.

Are you kidding me with raid1?    Why not raid 6? raid5 is too glitchy

SSDs are fine if you buy Enterprise drives, which are massively over-provisioned.

RAID1 is perfectly fine too - if you've got good backups, it's very difficult to beat as far as performance goes.  The servers here at work run a pair of 300GB 2.5" 15k SAS drives in RAID1, and they run very well, but they're only general purpose servers - no big database stuff.  Data is on a 8 spindle RAID6.

SSD's have shown to be rock solid for me. Especially the Crucial M4.

As for RAID.... Raid 6 is probably the best for data with being able to lose two drives. But, for the server partition I think that 4 SSD's in RAID 10 is unbeatable. The fastest systems I have ever built are all running 4 x SSD in a RAID 10. Data on RAID 5 and the most critical data arrays are RAID 6.

EDIT: Not only does RAID 10 provide ultimate performance, it has redundancy as well.

[demonmaestro]

SSD's have shown to be rock solid for me. Especially the Crucial M4.

As for RAID.... Raid 6 is probably the best for data with being able to lose two drives. But, for the server partition I think that 4 SSD's in RAID 10 is unbeatable. The fastest systems I have even built are all running 4 x SSD in a RAID 10. Data on RAID 5 and the most critical data arrays are RAID 6.

I think RAID5 should be not even a consideration anymore. RAID10 is good if you got hardware able to use it. That is why I had said RAID6. But spot on!

[Joshwaa]

I wonder if i will have to restart my Raspberry pi inorder for it to reconnect to the pooling server. I really hope not. It may not restart. Its at that stage where its working and i dont want to touch it. It may not work anymore if i do..

So did you move DataCenters again or you staying up there?
Should of gotten with me at the beginning of this year i have a rack full of server i sold for $1k i had 4 - poweredge 2850, 1 Poweredge 1950, 2 poweredge 2650, and 3 poweredge 6600 i think they were.

Holy smokes someone has a 26.83Th monster on the pool..

Reconnecting is normally transparent with modern mining software, a lot of the early issues where miners would never reconnect to Stratum have mostly been fixed.  I think the last time the pool servers were restarted the drop in hash rate from miners that failed to reconnect wasn't even measurable compared to the normal hash rate variance.

Same datacenter, just migrating to much better hardware for the database.  The current DB server was never intended to be running something like BTC Guild.  New server is a 1U SuperMicro, E3-1230v2, 32 GB ram, and an LSI 9260-4i with SSDs in RAID1.

Funny that is the exact specs of my VMWare server. Same LSI Raid, Same CPU funny, same mobo manufacture.  I have 256GB Vertex 4's for the RAID. Didn't see the need for enterprise SSD's. You will love the speed.

[eleuthria]

I wonder if i will have to restart my Raspberry pi inorder for it to reconnect to the pooling server. I really hope not. It may not restart. Its at that stage where its working and i dont want to touch it. It may not work anymore if i do..

So did you move DataCenters again or you staying up there?
Should of gotten with me at the beginning of this year i have a rack full of server i sold for $1k i had 4 - poweredge 2850, 1 Poweredge 1950, 2 poweredge 2650, and 3 poweredge 6600 i think they were.

Holy smokes someone has a 26.83Th monster on the pool..

Reconnecting is normally transparent with modern mining software, a lot of the early issues where miners would never reconnect to Stratum have mostly been fixed.  I think the last time the pool servers were restarted the drop in hash rate from miners that failed to reconnect wasn't even measurable compared to the normal hash rate variance.

Same datacenter, just migrating to much better hardware for the database.  The current DB server was never intended to be running something like BTC Guild.  New server is a 1U SuperMicro, E3-1230v2, 32 GB ram, and an LSI 9260-4i with SSDs in RAID1.

Funny that is the exact specs of my VMWare server. Same LSI Raid, Same CPU funny, same mobo manufacture.  I have 256GB Vertex 4's for the RAID. Didn't see the need for enterprise SSD's. You will love the speed.

The 1230v2 CPU is just an amazing processor, and even better price.  I use them on all the newer stratum servers as well.  I talked with a lot of people who have experience with using SSDs in RAID for high volume servers, and the recommendation I got was Samsung 840 Pro SSDs.  These recommendations came from people who could have easily gone for enterprise drives, but the bang for your buck is that drive, and longevity issues can be easily handled with RAID and having a few spares to hot swap if one ever does have an issue.

[HellDiverUK]

840 Pro is a good drive - I've got a few Samsung SSDs, they've been rock solid (PM830, 830, 840, 840 Pro).

[bbxx]

840 Pro is a good drive - I've got a few Samsung SSDs, they've been rock solid (PM830, 830, 840, 840 Pro).

i have 830 from a year, works perfectly

my ocz vertex2 60GB was replaced to new on rma twice...

[SoggyLettuce]

Awesome...miner hasn't been doing anything for 6 hours.
Fuck man I am not in the mood to reset my pi and everything.

[demonmaestro]

if you have alot of miners i can see how that would be a pain. I am lucky that i dont see any down time still. everything seems to still be running fine.

[HellDiverUK]

my ocz vertex2 60GB was replaced to new on rma twice...

That's a good one then.  I had an Agility3 that was replaced 7 times under warranty.  2 of them were DOA, 3 lasted less than an hour before freaking out, and the other two lasted about a month each.  Junk.

Best SSD I have is an old Kingston V+200 - it's taken a severe beating 24/7 for years in my download server, and it's been totally solid.  Amazing performance from an old Sandforce drive.  And it's still on it's release firmware.

[eleuthria]

Website/Database Maintenance Reminder

The website and API will be unavailable for an estimated 1 hour of maintenance to migrate the database to a new server.  The pool servers will remain online during the migration, and experience a brief restart when the maintenance is finished.

This maintenance will start when the next shift is finished.  The goal is maintenance will be finished before the following shift is ready to close.


EDIT/UPDATE:  Maintenance has been pushed back to ~4 PM (when the next shift closes) due to one minor oversight that can be addressed prior to entering maintenance mode.

[kslavik]

eleuthria,

What is the proper procedure to exchange a bad erupter? One of the erupters I got from you is not working.

Thank you.

[eleuthria]

eleuthria,

What is the proper procedure to exchange a bad erupter? One of the erupters I got from you is not working.

Thank you.

Please send an email to webmaster@btcguild.com and I will try to respond as soon as the database migration is finished.



RE: Database migration.  Since this is a live move, there is going to be an extremely small window where shares are not counted when the servers get pointed to the new database.  I'm preparing all the SSH sessions so I can very rapidly restart the servers immediately after the snapshot is taken of the live PPLNS shift database.  The estimated loss of mining time is only a few seconds.

[xstr8guy]

I'm in desperate need of help with setting up my Blades on BTCGuild.  Yes, I've tried to read and comprehend everything on the entire forum regarding this issue but it just goes over my head.  I'm hopeless when it comes to Command Prompts and the like.  I need step-by-step, fool-proof instructions.

.5 BTC (half BTC) reward to the person who gets me hashing first.  Feel free to PM.

[d20_9999]

I'm in desperate need of help with setting up my Blades on BTCGuild.  Yes, I've tried to read and comprehend everything on the entire forum regarding this issue but it just goes over my head.  I'm hopeless when it comes to Command Prompts and the like.  I need step-by-step, fool-proof instructions.

.5 BTC (half BTC) reward to the person who gets me hashing first.  Feel free to PM.

https://bitcointalk.org/index.php?topic=205369.0

No command line needed.  Or return/sell the Blade and get something else.  If you are that unable to follow directions, you should not have purchased one of the more user un-friendly mining devices in production.

[eleuthria]

Database migration is complete!  There's a little tidying up left to do, and a pesky time zone issue I need to fix, but for the most part everything is now complete.

[xstr8guy]

I'm in desperate need of help with setting up my Blades on BTCGuild.  Yes, I've tried to read and comprehend everything on the entire forum regarding this issue but it just goes over my head.  I'm hopeless when it comes to Command Prompts and the like.  I need step-by-step, fool-proof instructions.

.5 BTC (half BTC) reward to the person who gets me hashing first.  Feel free to PM.

https://bitcointalk.org/index.php?topic=205369.0

No command line needed.  Or return/sell the Blade and get something else.  If you are that unable to follow directions, you should not have purchased one of the more user un-friendly mining devices in production.

I've read through the above link several times.  I'm probably just missing something simple.

I already have some of the "friendlier" miners.  I have 70 USB Erupters and a BFL Little Single running just fine.  I have a Bitfury Starter Kit being delivered tomorrow with 5 more Hashing boards coming in October and a KnC Mercury on the way, hopefully soon.

But hey, thanks for being so kind.    

[demonmaestro]

Database migration is complete!  There's a little tidying up left to do, and a pesky time zone issue I need to fix, but for the most part everything is now complete.

still speedy.   ! Keep up the good work Eleuthria!

No data on charts...
No data on rankings...

The rest looks fine.

[eleuthria]

Database migration is complete!  There's a little tidying up left to do, and a pesky time zone issue I need to fix, but for the most part everything is now complete.

still speedy.   ! Keep up the good work Eleuthria!

No data on charts...
No data on rankings...

The rest looks fine.

The old chart data was not copied over, so it will take time to repopulate the data for them to start drawing again.  They should start showing up again in an hour or so.  Rankings were the same situation, but they've already started to regenerate.

[demonmaestro]

Database migration is complete!  There's a little tidying up left to do, and a pesky time zone issue I need to fix, but for the most part everything is now complete.

still speedy.   ! Keep up the good work Eleuthria!

No data on charts...
No data on rankings...

The rest looks fine.

The old chart data was not copied over, so it will take time to repopulate the data for them to start drawing again.  They should start showing up again in an hour or so.  Rankings were the same situation, but they've already started to regenerate.

Yea!! That means i will be up at top now for the Texas United team..  erm wait... never mind. Still old data there..     Damn...