Because it's almost impossible to purchase the equipment required to
convert old drive bays to u.2 etc.
The M.2's we purchased are enterprise class.
Mike
On 14/1/2024 12:53 pm, Anthony D'Atri wrote:
Why use such a card and M.2 drives that I suspect aren’t enterprise-class? Instead of U.2, E1.s, or E3.s ?
On Jan 13, 2024, at 5:10 AM, Mike O'Connor<mike@xxxxxxxxxx> wrote:
On 13/1/2024 1:02 am, Drew Weaver wrote:
Hello,
So we were going to replace a Ceph cluster with some hardware we had laying around using SATA HBAs but I was told that the only right way to build Ceph in 2023 is with direct attach NVMe.
Does anyone have any recommendation for a 1U barebones server (we just drop in ram disks and cpus) with 8-10 2.5" NVMe bays that are direct attached to the motherboard without a bridge or HBA for Ceph specifically?
Thanks,
-Drew
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Hi
You need to use PCIe card with a PCIe switch, cards with 4 x m.2 NVME are cheap enough around $USD180 from Aliexpress.
There are companies with cards which have many more m.2 ports but the cost goes up greatly.
We just build a 3x1RU G9 HP cluster with 4 x 2T m.2 NVME using Dual 40G Ethernet ports and dual 10G Ethernet and a second hand Arisa 16 port 40G switch.
It works really well.
Cheers
Mike
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