QUAD M.2 NVMe Ports to PCIe 3.0 x16 Interface (x8 Bandwidth) Bifurcation Riser Controller

Product Information

Typically HBAs (or RAID cards in IT mode) are used for storage systems to provide direct access to disks, so that that the host operating system can perform software RAID, or deploy a special filesystem like ZFS on the disks. If you’re running Ubuntu, your existing nobtcmd.txt should look like this: dwc_otg.lpm_enable=0 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait The card also has beautiful blue LED activity indicators to show I/O on each disk independently. IO-PCE585-5I LED Activity Indicators Overall I’m very impressed, and it’s working great. While I haven’t tested any games, it’s working perfect for videos, music, YouTube, and multi-monitor support on my 10ZiG 5948qv. I’m using 2 displays with both running at 1920×1080 for resolution.

It’s now time to configure the sharing protocols that will be used. As mentioned before, I plan on deploying iSCSI, NFS, and Windows File Shares (SMB/Samba). iSCSI and NFS Configuration In the event of a power loss, crash, or freeze, this data will be lost and/or possibly result in corruption. After enabling this, I noticed that RAM and Memory usage had drastically increased on the Synology NAS. This would peak when my ESXi hosts would restart. This issue escalated to the NAS running out of memory (both physical and swap) and ultimately crashing. Virtualized – Once a month I had an ESXi PSOD. This was either due to overheating of the IO-PEX40152 card because of modifications I made, or bugs with the DL360p servers and PCIe passthrough. While this card is great, I would like to point out the following issues and problems I had that are worth mentioning:

Customer reviews

Higher throughput with compression and deduplication can be reached with higher frequency CPUs (more Ghz), more cores (for more client connections). Remember that large amounts of RAM are required for deduplication. This card is also marketed as the SI-PEX40139 and IO-PEX40139 Part Numbers. IO-PCE585-5I Specifications thats like taking your car to a mechanic who doesnt have any tools-any advice given would be a hard pass There are a number of considerations that must be factored in when virtualization FreeNAS and TrueNAS however those are beyond the scope of this blog post. I will be creating a separate post for this in the future. Use Case (Fast and Risky or Slow and Secure) Implementing a SLOG that is slower than the combined speed of your ZFS pool will result in a performance loss. You SLOG should be faster than the pool it’s acting as a ZIL for.

In the event you do not have a SLOG device to provide a ZIL to your zpool, and you have a substantial amount of memory, you can disable sync writes on the pool which will drastically increase write operations as they will be buffered in RAM memory. Using compression and deduplication may also reduce the writes to your SSD vdevs, prolonging the lifetime and reducing the cost of maintaining the solution. ZFS ZIL and SLOG Some HDs and SSDs come with utilities or tools to change the sector size of the drive. I highly recommend changing it to it’s native sector size. iSCSI vs NFS Clearly iSCSI is the best performing method for ESXi host connectivity to a TrueNAS based NVMe Storage Server. This works perfect because we’ll get the VAAI features (like being able to reclaim space). iSCSI MPIO Speed Test Since you’re pushing more data, more I/O, and at a faster pace, we need to optimize all layers of the solution as much as possible. To reduce overhead on the networking side of things, if possible, you should implement jumbo frames.Mount the root partition of the SD Card Linux install to a directory. In my case I used directory called “old”. Originally I was planning on providing numerous benchmarks, however in every case I hit the speed limit of the hard disks connected to the controller. Ultimately this is great because the card is fast, but bad because I can’t pinpoint the exact performance numbers. Normally, for a VMware ESXi virtualization environment, I would always usually prefer iSCSI based storage, however I also wanted to configure NFS to test throughput of both with NVMe flash storage. Connecting the ESXi hosts to the iSCSI targets and the NFS exports is done in the exact same way that you would with any other storage system, so I won’t be including details on that in this post.