I just found a Cisco KB descripts a firmware issue may impact to ESXi FC storage performance. Please have a look whether your Cisco UCS system firmware is 2.1(2a), 2.1(2c), or 2.1(2d).
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How to get HP ProLiant blade server and enclosure information
An enterprise infrastructure administrator needs to run plenty of reports for firmware, software version, or any kind of infrastructure data in their day-to-day operation. Some vendors provide powerful tools to pull out data from their solution, but what if you don’t have such tools? It is pain to get data manually especially for large number of servers. I’m going to share my trick to you. I’ll use HP ProLiant blade system for example, as it’s very common case in enterprise datacenter.
Upgrade raspberry pi on fly
This article is for the new users whom just like me! 🙂 I got a Raspberry Pi about half years ago, I’m pretty new in Linux world, so I rebuilt my pi over and over again whenever there was a new release…it takes lot of time to do it. Thanks Safari(a online library for IT … Read more
How to Delete a Pending Host from SCVMM 2012 R2
A Hyper-V host shows Pending status under VMs and Services section, the host invisible under Fabric section. You may experience following symptoms when you re-add the Hyper-V host to SCVMM 2012 R2. There were no computers discovered based on your inputs. Please verify the following: Your Virtual Machine Manager Server service account has at least … Read more
PortChannel does not work on Cisco UCS Fabric Interconnect
Whatever you configure on MDS, whatever you configure on Cisco UCS FIs, whatever you do for port channel on both side, the Cisco UCS uplink ports always down with error message Initilize failed, or Error disabled. Congratulation! your device hit MDS firmware bug…https://tools.cisco.com/bugsearch/bug/CSCtr01652/?reffering_site=dumpcr.
Domain account locked out on vCenter Server
That’s a very small problem but it struggles you if you are enterprise datacenter administrator. As you may know the best practices to run application is by service account. But sometimes you may testing applications by your own domain account and forget remove it. Few days ago, my domain account locked out on domain controller. … Read more
Extremely slow when run PowerShell script by scheduled taks
I like automition/programming as much as I like Windows, my first offical training in University was VB, then I learned PHP and HTML after graduated. I can’t believe my first PHP program was welcomed in internel. But I stopped develop the skill. I got lot of special request for virtual environment. Some people want to monitor … Read more
$array.count does not show anything in PowerCLI
I developed a script to take snapshot on VM and delete older snapshot regularly. I used variable $snapshots to receive data from Get-Snapshot command, then determine how many existing snapshots according to return of $snapshots.count. Somehow the script always ran incorrect behavior. When I deep looked into $snapshots, I found a interesting things. Computer A, $snapshots.count return nothing if no, or … Read more
Device or Resource Busy
You may read my post How to find which ESXi 5.1 host lock the VM, it’s a solution to figure out which host lock down a file. But sometimes you may face similar problem but different solution. You are able to browse the file by CLI or GUI, but cannot delete by either way. It returns … Read more
Virtual Machine Disappeared on vCenter Inventory
Just googled this issue, some of people got similar problem, following was my problem and solution, hope it’s useful for you. Virtual machine maybe lost on vCenter Server inventory for some reason, it’s also disappeared on ESXi inventory when you connect to the individual host directly. You are able to find the VM process by esxcli … Read more