archive snowblossom slack mining
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2018-08-27 10:13:43
fydel
someone has tried the optane yet?
2018-08-27 19:31:50
Rotonen
someone poked me on discord over how to benchmark optane, but did not say anything yet
2018-08-27 19:34:06
Fireduck
based soley on specs, 550000 random read IOPS / 6 reads per PoW = 91.666 kh/s
2018-08-27 19:35:16
Fireduck
it looks like the optane name is used for a number of form factors
2018-08-27 19:37:52
Rotonen
the controllers do a bit of intra channel magic on top still, but would love to see figures
2018-08-27 19:38:14
Rotonen
but yeah, mostly seems to be about fast writes on paper
2018-08-27 20:11:04
fydel
i want to know.
2018-08-27 20:11:13
fydel
i orderd this one today:
2018-08-27 20:11:14
fydel
https://www.caseking.de/en/intel-optane-900p-series-aic-ssd-pcie-3.0-x4-280-gb-ssit-100.html SSD-Flaggschiff für Enthusiasten von Intel, 3D XPoint Speicherzellen & Intel Controller, 280 GB Kapazität, 2.500/2.000 MB/s Lesen/Schreiben, weniger als 10 Mikrosekunden Latenz, PCIe-Steckkarte mit PCIe 3.0 x4-Schnittstelle
2018-08-27 20:12:15
Fireduck
IOPS (4 KB Random Read): 550,000
2018-08-27 20:12:28
Fireduck
So 91.6 kh/s
2018-08-27 20:12:43
fydel
nice
2018-08-27 20:15:18
fydel
plus unknown percentage because of the intra channel magic. :male_mage:
2018-08-27 20:15:55
Rotonen
2500 is a fairly low read rate
2018-08-27 20:17:04
Rotonen
the intel 760p seems like a decent price / worth sweet spot, but a 660p will do well too, and is almost stupidly cheap
2018-08-27 20:23:48
Rotonen
anyone got the 970 evo? how’s the steady state on those? still having thermal issues?
2018-08-27 20:26:59
Rotonen
m.2, pci-e, 500k+ 4k read iops, max half a watt power use: https://geizhals.eu/?cat=hdssd&xf=2235_500~2384_0.5~4832_3&sort=r&hloc=at&hloc=de&hloc=pl&hloc=uk&hloc=eu&v=e Preisvergleich und Bewertungen für Solid State Drives (SSD) mit Schnittstelle: M.2 (PCIe), IOPS 4K lesen: ab 500k IOPS, Leistungsaufnahme Betrieb: bis 0.5W
2018-08-27 20:27:29
Rotonen
low thermal output half promises a high stable end state
2018-08-27 20:29:01
Rotonen
that sandisk actually thus looks pretty interesting
2018-08-27 20:31:27
Fireduck
it would be a true shit berg, but I can maybe make 32gb nodes with this: https://www.newegg.com/Product/Product.aspx?Item=N82E16813138459
2018-08-27 20:32:24
Rotonen
https://www.anandtech.com/show/12543/the-western-digital-wd-black-3d-nand-ssd-review The Western Digital WD Black 3D NAND SSD Review: EVO Meets Its Match
2018-08-27 20:33:14
Rotonen
@Fireduck or look at xeon d passive as well
2018-08-27 20:34:05
Rotonen
the optane 900p looks monstrous on those read graphs there
2018-08-27 20:34:49
Rotonen
and the 960 pro is still probably king, but not price worth king
2018-08-27 20:38:08
Fireduck
if I have a bunch of low power boards, is there a good way to power multiple from one power supply?
2018-08-27 20:54:41
Fireduck
I was looking at the wrong DDR3 ram. the best I can do is $200 16gb setups. With 22 or so I could host field 8.
2018-08-27 20:54:42
Fireduck
lol
2018-08-27 21:26:12
Rotonen
yeah, atx power splitters are a thing
2018-08-27 21:28:25
Rotonen
or see if you can power them with a pico psu
2018-08-27 21:28:51
Fireduck
yeah, I was looking at those
2018-08-27 21:29:47
Rotonen
you have a lot of overhead with picos
2018-08-27 21:30:05
Rotonen
so rather get an efficient kilowatt scale psu
2018-08-27 21:30:56
Rotonen
and put a killawatt or somesuch on the wall side to see the draw as you power and spin things up one by one
2018-08-27 21:35:37
Rotonen
i guess the arktika miners do not actually need any storage either
2018-08-27 21:36:18
Fireduck
they need the files available when they go to generate an actual proof
2018-08-27 21:36:22
Fireduck
but nfs is fine for that
2018-08-27 21:36:35
Rotonen
they can just boot off pxe and the image can use dhcp attributes to figure out which chunks to load over the network
2018-08-27 21:37:07
Fireduck
I think I've lost enough of my life screwing with pxe booting already
2018-08-27 21:37:41
Fireduck
these days I get lazy and get a bunch of 16gb USB flash drives as boot devices
2018-08-27 21:37:55
Fireduck
not sure if it counts as lazy, as it might actually be more work
2018-08-27 21:37:57
Fireduck
but whatever
2018-08-27 21:38:13
Rotonen
nfs or even networked lvm, or preferably just iSCSI disks
2018-08-27 21:38:32
Rotonen
i run pxe infra
2018-08-27 21:38:53
Fireduck
they just need it on startup to load into memory and then when actually preparing a share to send to the pool
2018-08-27 21:40:37
Rotonen
i guess omnios would simplify your storage stack for that
2018-08-27 21:41:52
Rotonen
that’s still the only decent free iSCSI provider
2018-08-27 21:42:52
Fireduck
Why not just use NFS?
2018-08-27 21:43:02
Fireduck
Especially if I want multiple nodes to mount the same data
2018-08-27 21:43:54
Rotonen
i have a decade of bad experiences with nfs so far, just never ends up working in the end
2018-08-27 21:44:26
Rotonen
always hitting some new funky corner or edge under load
2018-08-27 21:46:08
Fireduck
nfsv4 seems to be cleaned up nicely
2018-08-27 21:46:12
Fireduck
but haven't done much with it
2018-08-27 21:54:06
Rotonen
it's only like 2 weeks ago i moved something juniors built on fresh nfs onto iscsi
2018-08-27 21:56:40
Fireduck
Last time I looked at iscsi, I though, ok, this is cool if only any software supported it and I can't afford that hardware
2018-08-27 21:56:48
Fireduck
but that was probably over 10 years ago
2018-08-27 21:58:08
Rotonen
~anything consumes iscsi, and the descendants of solaris are free providers
2018-08-27 21:58:27
Rotonen
also fun to put a honeypot on one of those and see confused script kiddies try to linux haxors a solaris
2018-08-27 21:58:37
Rotonen
https://omniosce.org/ illumos based server OS with ZFS, DTrace, Crossbow, SMF, KVM and Linux zone support
2018-08-27 21:59:26
Rotonen
i'm not sold on their snowflake virtualization and containerization stack, i just use it as a storage server
2018-08-27 22:00:22
Fireduck
I use FreeBSD for my ZFS
2018-08-27 22:00:51
Rotonen
their zfs implementation, like the linux one, does not have iscsi, so meh
2018-08-27 22:01:21
Rotonen
they claim things, but has not worked out for me yet - would be less exotic, so that'd be a win
2018-08-27 22:02:14
Rotonen
dunno if i'm misunderstanding something in how theirs works, but never got the autodiscovery fabric stuff to 'just work'
2018-08-27 22:03:32
Rotonen
that looks less horrid than previously, will have to give it a spin some quiet week
2018-08-27 22:03:45
Fireduck
autodiscovery fabric sounds like something that happens in a Jo-anne's arts and crafts store
2018-08-27 22:04:56
Rotonen
no, it's essentially just silly lun speak for dhcp + fluff, which then got actually freaky with ipv6
2018-08-27 22:05:52
Rotonen
or, well, a lot of L2 magic in regards to high availability, but that's just sorta background chatter enterprisey network stuff
2018-08-27 22:07:28
Rotonen
i suppose one could make a case for it being named for converged networking needing a term to 'pull the wool over the eyes' of managers back in the day :stuck_out_tongue:
2018-08-27 22:08:52
Rotonen
but yeah, do tell if you actually go for building a cluster
2018-08-27 22:41:51
Fireduck
sure, if I can come up with $6k for it :wink:
2018-08-27 22:58:05
fydel
who is the Sunshine squirrel pool?
2018-08-27 22:59:15
fydel
i think he is mocking my hamsters.
2018-08-27 23:01:23
Fireduck
If they are mocking you, it means you matter to them
2018-08-27 23:02:26
fydel
hehe
2018-08-27 23:05:19
fydel
ah. nice. he gives 1% dev fee.
2018-08-27 23:06:59
Fireduck
That is nuts
2018-08-27 23:08:50
fydel
oh. we rodents are the only ones giving dev fee right now.
2018-08-27 23:09:15
Rotonen
i think i'm still the lowest fee pool, just with 0 miners :smile:
2018-08-27 23:10:35
fydel
SNOWPLOUGH?
2018-08-27 23:11:24
Rotonen
yeah
2018-08-27 23:11:34
Rotonen
i did have a block again a few weeks ago, though
2018-08-27 23:11:42
Rotonen
but currently no idle hardware
2018-08-27 23:11:44
fydel
hehe
2018-08-27 23:11:51
fydel
ah. okay.