IgnaciusMonk (u/IgnaciusMonk)

IgnaciusMonk commented on Connecting M.2 drives to various things (and not doing so) utcc.utoronto.ca/~cks/spa... · Posted by u/kencausey

justsomehnguy · 4 months ago

Honestly I don't quite get why they do have a problem here.

That chassis sports a proper 16-port SAS backplane so they can just use... SAS drives?

Sure, SAS 7.68Tb drives cost a bit more than some shit like 870 QVO 8Tb SATA drive, but:

you will have at least 12Gbps instead of 6Gbps of bandwidth so your storage would be faster;

you will not have a shitshow of STP so your storage would be faster;

you will not have a USB thumbdrive speeds if you exhaust the SLC cache so your storage would be faster;

you will have a better DWPD (1 vs 0.3) so your storage would be faster for a longer time.

But okay, even if you don't go the SAS way... I'm again not sure what is going on here, but besides 870 EVO (desktop SATA QLC shit) there are Kingston DC600M, Solidigm D3-S4520 and Samsung PM893 which are the enterprise SATA drives and they cost only 10% more than 870 EVO (and only 10% less than Kioxia PM6-R SAS).

Oh, by the way: don't do U.2 in 2025 and later. It would bite you later.

IgnaciusMonk · 4 months ago

youre right.

his article does not make sense at all. i do not ... know why it is even here and why some other commenters are inserting additional "points" to that article just to make it seem sane. :)

IgnaciusMonk commented on Connecting M.2 drives to various things (and not doing so) utcc.utoronto.ca/~cks/spa... · Posted by u/kencausey

account42 · 4 months ago

> No, it makes as much sense as USB-NVMe

I don't think that's true. USB is accessible in lots of places where SATA and PCIe is not, i.e. as external connectors. Yes eSATA is a thing but eSATA without being able to use USB or PCIe?

Or in other words, SATA->NVMe would at best serve users unwilling to upgrade their legacy racks while USB->NVMe has plenty of non-legacy use cases.

IgnaciusMonk · 4 months ago

do not encourage nonsense. pls :) it is totally pointless endeavor because you CAN still buy NEW sata disks.... so why the.. you need to have 60 dollar converters added on top of essentially same disk ??? so no sata -> nvme is total nonsense and provides absolutelly nothing in technical terms to anybody in any situation.

"" rest of your comment is "ok" ""™ XD

IgnaciusMonk commented on Connecting M.2 drives to various things (and not doing so) utcc.utoronto.ca/~cks/spa... · Posted by u/kencausey

userbinator · 4 months ago

No, it makes as much sense as USB-NVMe, which does exist, and as the article mentions, so does the other direction (a PCIe SATA controller in the shape of an M.2 SSD) but there's just not enough of a market for NVMe-SATA yet. They're just block device protocols, and the conversion between them is well-defined.

A bidirectional example is IDE/SATA, for which plentiful cheap adapters in both directions (one IC automatically detects its role) exist; IDE host to SATA device, or SATA host to IDE device.

For another "directional" example, it's worth noting that SATA to MMC/(micro/mini)SD(HC/XC)/TF adapters exist which let you use those cards (often multiple, even in RAID!) as a SATA drive, but the opposite direction, exposing a SATA drive as an SD card, does not (yet).

IgnaciusMonk · 4 months ago

USB is on same "OSI model" layer as PCIE is. SATA is not.

PCIE sata controllers in m.2 ssd are a thing, as are m.2 direct sata ssd, as are sata controllers on m.2 card with sata connectors capable of connecting 4-6 disks ( ASM1166 ). so i do not seem to see point you want to make there

sata -> memory card is solution for embedded market of 2000s not today, for refurbishments or efforts to keep using old embedded stuff. and again it has nothing to do with guys point, it is absolutelly different use case. he is talking about servers, ( servers with a lot of drives have expanders ) ! ! ! ! M.2 NVMe to CFexpress Extender is something else entirely, so depends highly on what EXACTLY are we talking about ! ! ! !

simple reason why it is nonsense - how much does 256 GB m.2 ssd cost? so just use that.

or use M.2 to PCI-E 4X 1X Riser Card ( adt-link K42ST ) and connect standard ubiquitous SATA/SAS/NVME HBA/RAID card into it and use any freaking disks.

or

M.2 Key M to SFF-8643 and use cable to connect it to something like H3platform Falcon 4118... which is "just" PCIE switch + psu + connectors.

or

m.2 to pcie connector and use HBA with optics to connect to 5 miles remote ARRAY.

IgnaciusMonk commented on Connecting M.2 drives to various things (and not doing so) utcc.utoronto.ca/~cks/spa... · Posted by u/kencausey

tomhow · 4 months ago

Could you please not fulminate like this on HN? It's not what this site is for, and destroys what it is for.

If you wouldn't mind reviewing https://news.ycombinator.com/newsguidelines.html and taking the intended spirit of the site more to heart, we'd be grateful.

IgnaciusMonk · 4 months ago

i do not understand what exactly you mean by - "It's not what this site is for, and destroys what it is for." because i thought it is for technical things.

not braindead nonsense which does not make any sense ( FOR PEOPLE WHO FULLY UNDERSTAND AREA HE IS EXPLORING not for ai kind of 80% understnading by googling and looking up in wikipedia by 50+ year old social studies major working as middle manager ) because that is what that article is about. yes it can seem it is highly technical , writen by person by a lot of knowledge, but it is not. OR HE HAS ANEURYSM OS CALL DOCTOR FOR HIM, so why the fffffffffuuuuuuuuuuuukkkkkkk is it here then. AI can hallucinate more accurate content than that.

so remove his nonsensical post and no fulmination anywhere, whole post is technical retardation, yet it is still here. conclusions, in that article are total retardation. way of thinking about problems in that article is total retardation. he is mixing apples with cars, and inserting totally nonsensical "economical" conclusions for problem no one sane even manage to invent yet.

IgnaciusMonk commented on Connecting M.2 drives to various things (and not doing so) utcc.utoronto.ca/~cks/spa... · Posted by u/kencausey

yummypaint · 4 months ago

You could do this on an FPGA dev board with the right connectors. Might be a nice project for someone with the time

IgnaciusMonk · 4 months ago

Writing SATA to NVME adapter is nonsensical endeavor. It is as writing RoCE to HTTPS adapter. Makes no sense at all. And im not even talking about voltages etc.

Any NVME disk can be connected even over PCIE3 x1 so there is plenty of capability on DESKTOP computers he is "managing".

And what is he writing and how is he writing it is unbelievable that he can not seem to understand what SAS expander is etc.

IgnaciusMonk commented on Dwl: Dwm for Wayland codeberg.org/dwl/dwl... · Posted by u/theycallhermax

exiguus · 5 months ago

I am a big fan of dwm and have used it for years on all of my Free- and OpenBSD desktops before switching to sway. The suckless people clearly stated that they would not support Wayland on dwm. At the time, I considered sway as the successor to dwm, at least for me, because it already had an ecosystem around it, and its behavior could be configured similarly if it wasn't already. I also took a look at dwl at the time, I think it was three years ago. I am now happy to revisit it.

IgnaciusMonk · 5 months ago

RHEL and friendly clones like Alma linux do run totally without X11 already !! Only wayland. so no need to remove x11 after installing distro. (on some distros it is not even possible, distro will break.) so finally we can have "clean" distros. it can provide nicer experience.

IgnaciusMonk commented on Algorithms for Modern Processor Architectures lemire.github.io/talks/20... · Posted by u/matt_d

bayindirh · 5 months ago

The newest x86_64-v1 server is older than a decade now, and I'm not sure -v2 is deprecated. RockyLinux 9 is running happily on -v2 hardware downstairs.

Oh, -v2 is deprecated for RH10. Not a big deal, honestly.

From a fleet perspective, I prefer more code uses more advanced instructions on my processors. Efficiency goes up on hot code paths possibly. What's not to love?

IgnaciusMonk · 5 months ago

Rocky linux is in cahoots with Oracle, do not supporting that with anything, not even with words. Go Alma linux if you need Red Hat but with different name but for love of anything good in this world, boycott everyone friendly with Ellison.

IgnaciusMonk commented on NonRAID – fork of unRAID array kernel module github.com/qvr/nonraid... · Posted by u/qvr

lazylizard · 5 months ago

i think unraid is a raid4

IgnaciusMonk · 5 months ago

unraid is nonsense for silly people(50year old managers).

IgnaciusMonk commented on Algorithms for Modern Processor Architectures lemire.github.io/talks/20... · Posted by u/matt_d

IgnaciusMonk · 5 months ago

I do not want to be rude but this is exactly why LLVM being in hands of same entity which controls access to / owns platform is insane.

edit - #64 E ! Also, i always say, human body is most error prone measuring device humans have in their disposal.

IgnaciusMonk · 5 months ago

Also to be more controversial. - redhat deprecated x86_64_v1 & x86_64v2 . and people were crying because of that....