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The guide says 'Up to sixteen x1, eight x2, or four x4 NVMe direct-attach drive support' on page 10. I assume direct-attach means nvme stack. Does it work? Is it fast enough?

It works as you say in structures that do not contain an active switch chip, but here there is a pcie switch, the configuration can be done differently. The card I put the link to supports 32 u3 disks. But it has only 3 ports, it is not clear how the cable connections will be.

Broadcom has HBA cards with up to 32 NVME drive support. For example: Broadcom eHBA 9600-24i 24 Int. Ports PCIe SAS/SATA/NVMe Tri-Mode Storage Adapter | eBay I think x16 can't provide enough bandwidth for 32 drives. Also it is not clear how they connect 32 drives with only 3 ports.

I need to connect mellanox nics to hp blade system 20/40 F8 switch. The problem with that finding a compatible cable below 50 usd. The HP BladeSystem switch is not even compatible with all hp cables. At the other end, it should be compatible with mellanox. I need 8 qsfp+ 40G cables. It is...

It is too expensive. I am going with 2 of Asus 4x cards. So 8 nvme. I hope they will work on dell R730. I will try at the weekend. Now I need storage software that exposes nvme drives as NVME-oF.

Anyone runs a kind of storage with BTRFS filesystem for ESXi?

Yes it is production but I don't have enough money. The servers placed on Tier 3 Datacenter. There are 2 datacenters with 160km distance. Second site is just storing daily backups and hasn't enough resources to run workloads. It already works without storage without an issue for a 1 year because...

Yes I have 40G network between blades and outside. I want to place the storage outside of blades. I have 8 bay Dell R630's.

I can't complete the setup in my mind. There is single HP C7000 blade server with 32 CPU and 4 TB of memory. I need 30 TB usable storage space. It should be fast enough for virtualization kind of standard web servers. HP Bl460c Gen9 only supports a pair of 2.5 Sata drives. I don't want to...

100G switches are too expensive. If the cluster doesn't have more than 5 hosts this topology is considerable.

Hi, I need high speed low latency storage network. I will use drbd with NVME RDMA. The replica count will be 2. First is on the host, second is on another host. My virtualizaton is vmware esxi version 7 based. RDMA is important because, I can't rezerve cpus to storage instead of the...

Very good information to know. Thank you for share.

The seller does not shipping to Turkey. I would like to buy 4 of this.

Have been manually change PLP flag solves the speed issue? If yes, power issue is very simple. There are many capacitor backed nvme pcie cards. JEYI MX16-1U M.2 NVMe Ugreen NVME Card Asus hyper m2 v2 I think the capacity is enough. If not, you can increase capacitor capacity by soldering same...

I see only MCX354A-FCCT model as dual port in Offical Mellanox Documents

I couldn't confirm too.

Thank you for comments. I added some detail in my post.

I am looking for ConnectX 3 Pro, 4, 5 and 6 dual port models. Shipping to Kocaeli, Turkey. Max budget is $250, $500, $1500, $2000 for 4 Thank you for reading.

Istanbul, Turkey.

Thank you for help. I only see one listing. There are 2 left of it. There is a $70 shipping fee. I need 4 pieces. I am checking listings for 2 weeks. Not found a good deal.