Hi gentle people that live in the intertubes and heat chips all days long,
Ze plot :
Applying some HPC guidelines to a clustered file server for ~450 users (85% of files into [257-128k]):
- Use 3 SRVs:
- FS: ZFS,
- DFS: GlusterFS,
- HBAs w/ broadcom chipset,
- RDMA 40 Gb from Mellanox (adapters & head switches)
- No fancy stuff (such as overclocking).
Ze hardware :
H1- Threadripper 1950X ?
H2- As the gain of 2950X is only 100 MHz over the 1950X and performance difference is far from a break out, put €200 more for that on the table seems a bad idea ?
H3- 2990WX is of course tempting, but as 2/4 dies access RAM through another die, as it is an energy hog and as it only runs @3.0 GHz (ZFS loves high clock), it doesn’t seem to be a good competitor, especially @€1,650 the beast ?
H3b- As the 3 SRVs will also run some daemons (apache studio, nginx intranet sites, etc), will the 1950X be sufficient to cope will all that ?
H4- As AMD tables show that RAM speed goes down when the machine’s stuffed (8 sticks) and I left HW alone for the past 15 years, is it possible to have the CPU running at it’s regular speed and the ECC RAM run at it’s nominal speed (2,666 MHz) WITHOUT any risk of unstability ?
H5- Motherboards aren’t legion but I have a particularly bad souvenir of ASRock, that wasn’t even consummer grade 15 years ago - from what I read here and there, it seems to be the same today, especially upon BIOS upgrade/reactivity ?
H5b- Which motherboard would you advise about ? (criterium #1: Stability, #2 (if possible) ability to run the RAM at it’s nominal speed, #3 must have at least 3 × M.2 slots)
Ze software :
SW1- Does running the whole shebang under Linux avoids the need of ADM special software to modify the CPU cores behavior ?
SW1b- if not, doest it run under wine ?
BTW: How can I correctly tag this post (did not find any setup), is it automatic/moderator only ?
Thanks in advance & regards.