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this is day two of isolation with a sore throat and you're gonna be able to tell

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how long i've been at home by how long my facial hair gets but that doesn't

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mean we're gonna stop making videos so we did a folding at home call to arms

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last week where we had people contribute computing power from their desktop

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machines to help run protein folding simulations to help in the fight against

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covid19 among other diseases but as we

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mentioned in that video one of the main problems the folding project is having

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right now is not necessarily that there's not enough willing volunteers to

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contribute their compute power but that there's not enough servers to intake all

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the data so we said we were going to work with the folding guys to build

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ourselves a folding at home target

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server and put it in our server room that's what i'm going to be doing here

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at home today and i've got one of our old decommissioned servers along with a

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care package from Jake that i'm going to be opening up using to upgrading it and

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then lysoling the heck out of this thing and sending it back to him and the video

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is brought to you by glasswire instantly see your current and past network

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activity detect malware and block badly behaving apps on your pc or Android

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device with glasswire use offer code Linus to get 25 off glass wire at the

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link in the video description so it's pretty obvious what all the volunteer

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contributors like you are doing for the folding at home project but many of you

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probably won't know what role the server plays in all this so here's the thing

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when you're folding your machine says hey i need a job to work on what the

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server does is it says all right i've got a spot available go ahead and

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connect to me i'm going to generate a job for you send it off to you then you

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go ahead you crunch those numbers and the job is ready to submit and the

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server says okay i'm ready for you you send it back and it stores it until the

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researchers who are working on the folding at home project are ready to

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grab it and do something with it so for that to work you actually need a few

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things one is a decent amount of CPU

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power folding at home recommends an eight core CPU which we actually do have

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but uh for a couple of reasons i'll get into later we're gonna be upgrading the

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one in here it's a little pinner they also recommend about 64 gigabytes

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of RAM that's gonna let us handle anywhere from a thousand to twelve

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hundred clients connected to our machine the other things we're gonna need are a

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buttload of storage in order to hold those completed jobs and of course a

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fast internet connection in order to connect to all those clients so because

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we've got 10 gigabit Ethernet already built into this motherboard we don't

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need to make any upgrades there but we do need to swap out the 32 gigs of RAM

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we've got in here that eight core CPU and of course we're going to need to add

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some storage let's start with our CPU the xeon e3 2618 lv3 that we've got in

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here was just fine for basic file server

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duties especially given that we were running a raid card in here when we

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originally deployed it so the CPU didn't even have to handle any storage parity

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calculations or anything like that but it's only got a 2.3 gigahertz base clock

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which means that if we're actually loaded up with you know somewhere over a

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thousand clients that thing is going to be running darn near base speeds not to

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mention that folding at home recommends a gigabit internet connection and we are

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actually going to be running 10 gig and we're hoping to provision off anywhere

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between about 4 gigabit and 5 gigabit of

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our internet connection to run to this machine so we want to see this thing

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melt if we can get away with it let's pull out this chip and now seems like as

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good a time as any to open up my care package from jakku

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what do we got in here this is looking like pretty good stuff

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here's our two power cables for the redundant power supply that's already

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built into this machine a vga cable so we can test it make sure it actually

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powers on after our upgrade oh shoot these RAM sticks got kicked around a

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little bit 32 gig registered ecc memory modules so that's

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going to give us a total of 128 gigs of RAM in our completed config

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i will explain why we need so much a little bit later i've got some

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thermal paste

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some screws and this seems like there's more than just an optane SSD in it ah there it is

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all right so we are upgrading to an e5

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2697 v3 that is a high performance 14

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core 28 thread processor or at least it

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was a few years back nowadays it's not really anything special but it should be

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more than enough for what we're doing here today go ahead get that installed

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it's so nice he included a little cleaning pad but he also sent me a clean

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CPU so i'm not gonna bother with that i love these thick boy thermal paste

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tubes look at that it's a hand for scale i mean it's a small hand but you know

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how it is oh wow that's a lot uh uh well the good

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news is we're not likely to run out anytime soon

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this is a very early unit of this motherboard super micro actually sent us

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i think it was one of the first ones off the line for this thing because it was

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one of their first matx server boards that had 10 gig Ethernet built in 10 gig

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used to be more of like uh well you why wouldn't you just use an add-in card for

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that and it's become over the last few years an option to have just

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pre-built into the motherboard and our CPU upgrade is done now let's

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talk about the storage folding at home recommends about 50 terabytes of storage

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for one of these servers but because our network connection and our CPU not to

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mention our memory are all beefed up we could quite possibly need more than

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that so we're configuring ours with eight of these 12 terabyte ironwolf pro

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nas drives from seagate that's going to give us about 96 terabytes of raw space

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or 72 once we give up two of our drives for parity and then once we've formatted

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about 60 terabytes of usable storage

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fortunately this case is super easy to install drives in it's actually one of

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the only things that i really really like

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about it you just pop these open slide them in

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no tools no sleds no nothing just

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boom just like that that takes care of our capacity but these are mechanical

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drives and even in zfs raid they're not

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going to be particularly fast so believe it or not that's where our overkill

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memory upgrade comes in so we're going to be using 64 gigs of

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our RAM to meet the recommended specs from folding at home but we're going to

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be using the other 64 gigs to actually

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act as an arc or a or a cache for our

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mechanical drives these are going to be running in a quad

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channel configuration so we should have plenty of bandwidth and uh i don't know

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whatever i haven't shouted out kingston for sending these to us in a long time

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they actually sent them originally for the six workstations one CPU project but

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we have used them for tons of things and they've worked basically anything we've

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put them in so good on them for that you guys probably noticed though that

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inside that optane box there was also an actual Intel optane 905p 960 gig SSD

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this is gonna act as a level 2 arc so

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between our RAM and this SSD we are hoping to accelerate our mechanical

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storage array quite significantly alleviating any performance bottlenecks

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that we could run into there where's my screwdriver so we're just

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going to take one of these open pci express

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gen 3 8x slots i was going to put it in

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the next slot over but i realized that puts it right up against the edge of the chassis and there's no cooling fan there

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so probably better off sitting next to the hba and having a cooling fan near it

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as opposed to being farther away from another heat source but not having any

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direct cooling one thing we're not changing is this hba the difference

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between an hba and a raid card is that an hba doesn't have a CPU built into it

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to handle raid calculations it's just a card that adds more ports to your

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motherboard in this case eight 12 gigabit per second sas ports even though

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we're only running them at SATA six gigabit per second through this back

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plane over here that's it then for the hardware upgrades and it all comes down

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to software configuration to decide how best to use it so one of the things we

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could do is instead of using 64 gigs of our memory to accelerate our hard drives

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we might cordon off just 32 gigs for that giving ourselves the capability to

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handle over 1500 clients that's something that those extra CPU cores

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might come in handy for or we might realize that we're better off using our

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extra CPU horsepower to enable real-time data compression to our hard drives like

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maybe we run into a network limitation or some other system limitation and

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realize we just don't have enough storage guys that's something that you

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can do with cfs for now though all that remains

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close this puppy up there we go screw it together

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and give the whole thing a good lysol wipe down i like Jake he's a good guy he

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can have the uh lemon scented wipes

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this is gonna be like the best smelling server ever

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hopefully matthias is here to pick it up and we'll send it back to the office

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okay let me open this okay so i don't actually have the rails

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for this server so we're just going to sit it on top of this storinator

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it's kind of ghetto but whatever i also don't have a screwdriver so i'm not

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going to look at what Linus did but i kind of know what it is already

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and for a little server she sure is heavy there we go

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okay hey he gave me the cables back noise

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he stole the thermal face though what the

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heck okay we got power

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plug one in for ipmi so we can remote control this thing

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uh oh right i need a display

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do we even have spaces left on this thing

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sweet okay i gotta try and find this back here so this is p

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where do these cables even come from

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should probably label this right yeah

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i'll leave that for the next person hey it's working

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let's make sure everything's here 110

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28 gigs of RAM everything else it's working

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yes like Linus mentioned earlier we're going to be using something called zfs for our

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hard drive array so not only does it do the work of a file system by controlling

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how your data is stored and retrieved but it also handles how all the physical

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or virtual disks are partitioned and works to ensure the integrity of the

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data on said drives now that we've installed zfs and verified that it's

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actually working we're going to create our z pool now we're going to be using something called raid z2 which is

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actually based on raid 5 but it's going to allow us to lose two total drives

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before we lose any data i've already kind of pre-configured the command

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written out all the disk name so we don't have to wait for that and i've also defined our cache in here which

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means we're going to have that 905p working right off the bat so just copy

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this command in there paste enter and yeah

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okay let's check our z pool list now that it's should be in there we see 87

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terabytes which is a little lower than 96 but you know drive partitioning and

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what have you and then if we run dfh

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we can see we actually end up with 60 terabytes of usable space that's a

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little bit down from 96 but it should be plenty for what we're trying to do

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there's still a couple more things we need to check off the list before we can install our folding software namely i

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want to set our arc cache to a max of 64 gigs and then i'm going to enable

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compression because i think it's going to be fine with the 14 cores we have i

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think realistically our network is going to be our bottleneck but we'll enable it

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for now and if down the road we have to turn it off no big deal

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now as a sort of last step i'm just going to kind of look at our z pool so

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we're going to do z pool status folding and we can see all eight of our drives

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one two three four five six seven eight and our cash drive are all there and

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ready to go and we have no errors which is perfect

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in order for folders to actually be able to access our folding server i've

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created some firewall rules now that was pretty easy but we're also going to create something called a traffic

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limiter because we don't want this folding server to eat up all of our 10

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gigs of bandwidth so we're going to limit it to 5 gigabit but i'm going to show you guys how this works on the

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laptop as a baseline i'm going to run a speed test on the system before we

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enable the traffic limiter so you can actually see the difference

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okay we have our results in and we're looking at 230 down and 200 up so i

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think i'm going to limit it to 5 megabit which will be a very stark change and

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you should be able to see it right away so we're going to go into our two rules

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here it's already set to megabit so we'll do 5 and then we'll go to our in

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set that to five and then apply and then

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we just need to find our ip which i already did so

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10.20.3.35 for this laptop so i'll just go add the rule in so here's our results

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and yeah five megabit right on the dot ish

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so now we're gonna change this over to five gigabit and then set it up on our

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actual server now that we've got our z pool configured and working we've got

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our bandwidth limiter and our firewall rules set up it's just a matter of

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calling the folding guys and getting them to install the software so we can get this work server going

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well it's been a week and as you can see my isolation facial hair is quite long

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and this is great i've got jakku on the line and we're going to be checking out

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how well our folding server is running so Jake give me the good news well the

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good news is there's enough work units for most people now which is great did

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we help with that or was that just serendipitous yes but it's not only us

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helping so they've also got microsoft azure i think they donated some servers

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um oracle you know the guys that make java and lots of other things they're

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doing stuff too and then there's us but uh if we look on the stats here we can

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definitely see that our server does have jobs available which means work units

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are available nice 19 000 jobs i mean for the first like five days it was up

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there was basically nothing because they just couldn't create enough projects it

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was no longer the servers but the people that were the ben or the bottleneck so

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how we doing now how much usage have we got i was kind of expecting more to be

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honest but if we look at the past history you can see like

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they spike up quite a bit so like right there is half a gigabit and then that's

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600 and then if we scroll out actually

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so that's like 1.6 gigabit wow so from

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my understanding these actual like spikes a lot of the time are actually

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when the different work servers are like communicating with each other the actual

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like network bandwidth of individual clients connecting isn't too much but

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it's when they're trying to talk together that it really starts to hurt and how much storage have we used so far

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last i checked this morning it was already like two and a half or three

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terabytes of storage used that's awesome and we can look at our zfs stats here

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which actually paints a little bit more of a picture so our RAM cache i set to

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64 gigs is completely full you can see it's it's ramping up slowly filling so

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as things are being removed from the RAM cache when they would normally get

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dumped back to the disks they actually go to the level two cache instead

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so this is already up to 64 or 40 gigs

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and it's only been like an hour or something since i reset it so it does

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take a few days to fill obviously because it's only filling up with stuff that's being removed from the primary

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cash but um fantastic and hey i've actually got an update for you so we

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have created an exclusive folding at home shirt design

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and all profits from the shirts are going to be contributed to causes within

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canada around the research relief and treatment of covet 19. so you guys are

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going to have to check that out at lttstore.com and

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what's really cool is Intel is going to match

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every dollar raised dollar for dollar to a maximum of 40 grand and so that 40

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grand is actually going to go directly to the folding project so they can get

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servers and stuff right yes that's correct oh apparently you already knew

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about this i did already know yes this is actually like one of my favorite

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shirt designs and the qr code on the back takes you to our our team stats on

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extreme overclocking dot

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so join the cause guys we're gonna leave this server running for the foreseeable

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future i'll let you go now Jake and uh

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just share a word from our sponsors with the good viewers out there drop.com the

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cost gmr 54x iso gaming headset is the

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featured product this time around these are audiophile approved and based on a

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popular cost headset that was custom engineered for immersive 3d sound giving

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you positional cues for where your enemies are coming from there are some

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changes made from the original so they've reduced the tension in the

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lightweight headband for improved comfort they include a cord splitter

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inline microphone with remote and a detachable boom mic and the boom mic

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works with the ps4 xbox nintendo switch and more without hassle get it today and

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new users who sign up on drop.com will get 20 off on this headset we're gonna

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have it linked in the video description so thanks for watching guys if you enjoyed this video maybe check out our

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previous part of this video where we built a monster client folding machine

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as opposed to a server that's some really good stuff too