My point was - Thunder bolt is maximum of 4 pcie3 lanes. It cannot supply enough bandwidth to saturate more than single, not to mention four 4x PCIe3 - striped 16GB array of NVMe is likely to cost multiple thousands $$.
There is even less point spending 2x of that on pcie4 NVMe solution. ... Not my money or choice ... still it should be reasonable advice .... just saying ... On Mon, Sep 21, 2020, 15:24 Bill Barry <[email protected]> wrote: > On Mon, Sep 21, 2020 at 5:16 PM Tomas Kuchta > <[email protected]> wrote: > > > > If you are using full bells and whistles 40Gb TB3 you are limited to 4 > > shared PCI lanes for all the NVMe's in the enclosure. > > > > Given the price and the purpose of these PCIe storage arrays, it seems to > > make sense to have them on PCIe 16x cards otherwise you cannot access > them > > at their native speeds and they might just as well use much cheaper > > 4xSATA/SAS hangout ng of PCIe3 4x. > > > > Tomas > > > > To say it again, another factor you need to consider is whether or > not your ssd drives are PCIe3 or PCIe 4. It can make a big difference > in transfer speed. I know that you can now get PCIe4 on motherboards, > but I don't know anything about external enclosures. > > https://www.techspot.com/review/1893-pcie-4-vs-pcie-3-ssd/ > > Bill > _______________________________________________ > PLUG: https://pdxlinux.org > PLUG mailing list > [email protected] > http://lists.pdxlinux.org/mailman/listinfo/plug > _______________________________________________ PLUG: https://pdxlinux.org PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
