Mitigate Spectre and Meltdown impact with vSphere ESXi

Meltdown-Spectre

As most of the folks in the IT, I’ve spent last couple of days researching about famous Spectre and Meltdown attacks and their possible impact to our infrastructure. These security flaws are especially bad, not only because they’ve been here for more than 2 decades, but mitigation comes with significant … Continue reading

ESXi installation fail with IBM x3650 M4 and m5110e storage controller after Firmware upgrade

OperationFailed

Yesterday, we experienced a problem where we couldn’t install ESXi on the one of ours IBM x3650 M4 servers. We suspected it could be a firmware issue as we performed a complete firmware upgrades just before the installation. If you already had your ESXi installed and did the firmware upgrade … Continue reading

Bricked QLogic Broadcom BCM57840 after driver update

alert

Two weeks ago, we started with regular updates of our Flex system servers, including drivers and firmwares. It is good practice to update drivers first so I followed this procedure as usually. Our update list included ESXi driver for CN4022 (QLogic Broadcom BCM57840). Since IBM/Lenovo doesn’t provide VMware drivers for … Continue reading

Just Another ESXi 6.0 Storage APD Handling Bug

alert

It’s been a while since we experienced partial outage on our storage infrastructure running under IBM SVC storage. Few LUNs (vdisks in IBM SVC world) presented from storage went offline. I’m not going into details why it happened as HW problems just happens sometimes. Important thing is how are you … Continue reading

Broadwell ESXi 6.0 Exception 14 PSOD and Lenovo support fail

exception14

You may already have heard about known issue with Intel Broadwell Family CPUs (Intel Xeon CPU E5-26xx v4 CPUs)  where you can hit Exception 14 PSOD if you are running older microcode. If not, you can read about it in kb2146388 From there you can clearly see you need to … Continue reading

SoftLayer local disk performance SATA/vSAN/SSD

SoftLayer local disk performance SATA/vSAN/SSD What disk performance you can expect from local drives in Softlayer with VMware vSphere6, vSAN & local SATA or SSD drives? This article is here to help you see and decide if performance will be enough for your needs. I have 3 hosts with: hardware … Continue reading

Updated: Building vSphere 6 with VSAN on IBM Softlayer: Part 4 – Configuring VSAN on Softlayer

  UPDATE: I do not recommend using this guide for any future deployment. The information included is quite outdated and is not relevant anymore. The article should only be used as reference for some commands. My recommendation is to check  IBM’s official offering of VMware on IBM Cloud. A lot … Continue reading