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    Mellanox Switches - Tips & Tricks

    Does anybody know which version of the SN2100 that are safe from the AVR54 bug? Any specific date or revision? The Nvidia KB article does not have much info: Intel Atom Boot Issue | Knowledge Base
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    Arista DCS-7050TX-64-F - eBay US

    Datasheet says 315W Typical / 387W Max. But i guess that is with all ports connected?
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    Cheap, efficient, USB-C Power Supply?

    For good reviews of USB C power supplies check out :
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    Supermicro MCP-290-00014-00 Compatibility

    I have MCP-290-00053-0N on my old 846 cases, seller found the correct rails based on chassis serial number. They were end of life back in 2014 when I bought mine, so might be kind of hard to find now.
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    Optane P1600X 58GB $40

    Special metadata vdev can only be removed if your pool consists of mirrored or single vdevs. A single RaidZ vdev in your pool makes it impossible to remove other vdevs.
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    QSFP28 vs QSFP+ direct attach cables

    I have only tried Ethernet, don't know about Infiniband.
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    QSFP28 vs QSFP+ direct attach cables

    My QSFP28 DAC Cables was not detected by early software versions on SX6012. With version 3.6.8010 they work without issue at 56Gb/s.
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    Beware of EMC switches sold as Mellanox SX6XXX on eBay

    I tried with "-s SX6012" as well, but it did not work. Just using 1 to make a copy worked. But after copying the patched FRU the mlxi2c command does still not work. Might need a reboot or something else? mlxi2c show devs -v Oct 13 21:48:59 INFO LOG: Initializing SX log with STDOUT as output...
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    Beware of EMC switches sold as Mellanox SX6XXX on eBay

    The guide uses that command to get the current FRU. From section "Get current FRU" before "Send the updated FRU to the switch" Or am I missing something?
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    Beware of EMC switches sold as Mellanox SX6XXX on eBay

    When trying to convert a EMC 6012 using dodgy routes guide I have issues when trying to detect the FRU Bus number mlxi2c show devs -v -E- mlxi2c: mi_opend Failed status(MLXI2C_AUTO_DETECT_FAILED:21) Any ideas?
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    Enterprise wifi APs - API access to logs or current hooked up devices?

    Cisco has tow different wifi series, Catalyst and Meraki. Catalyst 9800 has a few different API alternatives: Catalyst 9800 Programmability and Telemetry Deployment Guide 16.10 Meraki getClients: Cisco DevNet
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    Checking Health Status - PCIe & U.2 SSD

    CrystalDiskInfo shows a overall health status, power on hours and other useful info. A lot of ebay sellers add a screenshot of CrystalDiskInfo when selling disks.
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    ESXI 7 vmotion issue

    EVC is only required for live vMotion. When a VM is power off there is no issue powering it on again with a different CPU. Different bios settings can cause issues, such as enabling/disabling AES NI. vMotion between cpus with the same instruction set shut be no issue. In my homelab I can...
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    SR-IOV on Supermicro X9DRI-LN4F+

    I am trying to do SR-IOV with a Mellanox ConnectX-4 in a Supermicro X9DRI-LN4F+ running vSphere 7. Under pyshical adapters it shows the following: SR-IOV Status Enabled Number of virtual functions 4 (0 currently available) mlxconfig shows SR-IOV enabled in the firmware...
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    Intel SSD Optane P5800X 400GB @ $625

    My X10SDV-4C-TLN2F does 4x/4x/4x/4x with Asus Hyper M.2 at least.
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    X10SDV-4C-TLN2F $229.90

    Are you sure? Spec sheet and the manual says NVME and SATA.
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    Cisco 3560CX and PBR - Changing the IOS from IPBase to IPServices

    A Cisco a Right To Use license is not enforced, if it shows evaluation no actual license has been installed/activated but the features still work.
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    Looking for: Introduction to Fibre Optics for the Copper Cable user

    That is not entirely accurate, you cant get QSFP-BiDi transceivers that do 40Gbit on single pair multi-mode cables. Example: Cisco QSFP-40G-SR-BD Compatible 40GBASE-SR BiDi QSFP+ Transceiver Module Edit: Cisco also has a 100Gbit QSFP28 transceiver with LC connector that does 100m with OM4 MMF...
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    QSFP Cables - same for Ethernet and Infiniband?

    Thanks if i can get 40G from 100G cables that is good enough. Will look for some cheap original cables on ebay.