There is still a bug in current VCSA 6.5 U1g. When you use a proxy server in management interface (Port 5480) to access VMware repository for updates, you get a “Download failed” error. The problem is that in configuration file https-proxy setting will not be set. To resolve the issue, do the following:
- Log in to VCSA shell
- set entry
No reboot or service restart is necessary. Just re-try to scan repository.
FC AFA (all flash array) 3PAR systems show quite a good latency on reads and writes. When operating an iSCSI AFA 3PAR it could happen that the systems show a rather high write latency on ESXi hosts. In this post you can read how to fix this.
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Here is a very simple linux bash script to shut down all VMs of a ESXi host and the host itself, for example when a power failure occurs, this script can be used in UPS software. Some time ago a posted how to use such script in an HPE UPS environment. You can find the post here.
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In this blog post you can see how to configure IO limits and how ESXi hosts executes these limits. Furthermore you will see how IO size matters.
Continue reading “How do IO Limits look like”
A short (and funny) one. At my last upgrade of VCSA from 6.0 to 6.5 I got a warning that says: “User vdcs does not have the expected uid 1006”. Furthermore warning is talking about a KB article to read but without any hint what article it is talking about. This message has something with the vCenter feature Content Library. According to VMware Support when Content Library is not used, you can continue with upgrading VCSA – and using Content Library after the upgrade. When feature is use, call VMware Support.
When you connect your storage device to your ESXi hosts, a Path Selection Policy (PSP) will selected based on defined rule set. To help the host to select the right policy for your device, you have a few options. I personally prefer to create a device specific rule based on Vendor and Model. I will describe for ways to get the information about your device you need.
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Here is a short PowerCLI script to copy vSwitch PortGroups from a source host to a target host. Security policies will be copied too. The switch at the target host has to be created already. The script takes inheritance into account. This means just setting, changed at PortGroup-level are copied. All other settings are inherited.
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