Tag
9 articles
Broadcom documents the bugs that took down somebody's cluster. Five real issues from the latest ESXi release notes - the exact error, the root cause and the fix, with the war stories behind them.
12 Sep 202612 min
Install Failed on one host or the whole cluster tells you different things. Read esxupdate.log, clear the real blocker and recover a half-installed transport node without a rebuild.
12 Sep 20268 min
Overlay traffic between hosts stops but NSX looks green. Here is how to read tunnel state, prove TEP reachability at 1600 bytes and find the MTU or BFD fault behind it.
12 Sep 202610 min
APD, PDL and plain latency produce similar symptoms and need completely different responses. Here is how to classify the condition from the logs and recover correctly.
11 Sep 20268 min
Most 'HA agent unreachable' errors are DNS, firewall or management-network faults rather than HA itself. This fault tree takes you to the root cause in seven checks.
10 Sep 20268 min
The appliance pings and accepts SSH, but the vSphere Client returns 503. Work through disk space, certificates, time skew, directory service and database in the right order.
9 Sep 20267 min
A purple diagnostic screen is the VMkernel telling you it hit an unrecoverable condition. Here is how to read the panic banner, extract the core dump, and identify the faulting driver or hardware component.
8 Sep 20267 min
Fibre Channel over Ethernet (FCoE) is an industry-standard protocol used to consolidate data traffic in storage and networking environments. It provides a high-speed, low-latency way to transport data between servers and storage devices, while eliminating the need for separate networks dedicated to each type of traffic. In this article, we will discuss how VMware vSphere […]
10 Dec 20223 min
If you have recently upgraded your VMware ESXi system, you may be experiencing problems with VMNICs (virtual machine network interface cards) not working. This issue can occur when the new version of the hypervisor is incompatible with the existing hardware. Fortunately, there are ways to troubleshoot these issues and get your VMNICs up and running […]
27 May 20223 min
