Recent content by barichardson

If you go the route of splitting PSUs across two circuits to balance the load pay attention to the PSU redundancy settings. By default most C6xxx chassis are set to A/B grid redundancy. In this mode the chassis will put all load on the primary PSU and the secondary will only be used if the...

C64xx sleds are strict about SFP transceivers in the mezz slot needing to report that they are rated for high temps. If not, the NIC will simply refuse to enable TX/RX. For the Intel X710 dual port OCP mezz card in the service tag you listed these part numbers are compatible: Dell SFP+ SR high...

I did some searching and it looks like opensm has been removed from the WinOF-2 distributions. This means that in order to have a functional InfiniBand fabric with windows you will ether need a host on the fabric running Linux with OFED or a managed IB switch capable of running a subnet manager...

Did you start the subnet manager service (opensm) on one of the systems? I am not familiar with the utilities provided in the WinOF-2 drivers but if there is an equivelent of 'ibstat' the output of that will probably point you in the right direction but it sounds to me like you don't have an...

Documenting the process to replace fans in the Mikrotik MT-HotSwapFan module used in CRS518 and CCR2216 switches. The hotswap modules use a ribbon cable so they will need to be modified to use standard PWM fans. The fans getting installed are Noctua nf-a4x20-pwm. The screws on the original...

I'm glad someone was able to make use of that fan shroud. It took a lot of iterations to get the fit just right. My zpool is under a decent load 24/7 so I should be able to give you a pretty decent idea of what the temps will look like under load. My hot swap bay fans are set vary their speed...

I recently built a similar system and I considered mirrors but in the end went with 3x 6 disk Z2 vdevs like you are planning. For my use it was the best balance of performance (6 disks in Z2 is an optimal config) while having an acceptable level of redundancy. I didn't bother with ZIL/ZLOG...

No. QDR has a maximum link rate of 40Gb/s but due to the data encoding it really ends up being around 32Gb/s. FDR-10 has a link rate of 40Gb/s but has updated encoding that ends up being the full 40Gb/s. FDR - 56Gb/s EDR - 100Gb/s HDR - 200Gb/s NDR - 400Gb/s

I am using that same Innodisk EGPL-T101 in my server and I have been happy with the performance so far. It is Aquantia based and did not require any additional drivers with Fedora 36. One thing to note is that the heatsink is pretty tall so I it will probably interfere with a PCIe card if your...

I've been happy with an LSI 9305-24i and it plays nice with ZFS. Supports SAS3 speeds and doesn't cost as much as the newer tri-mode cards. Just make sure to update the firmware to the latest version (16.00.12.00) since it fixes some SAS bus reset issues. I also designed a fan shroud that can...

PM sent for both UPS units.

Do the fans on those UPS units run all the time? I would like to upgrade to a 2200va unit but would like something that stays quiet.