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.
Backup from snapshot on target 3PAR
In a 3PAR Peer Persistence configuration volumes are synchronously replicated between two 3PAR arrays. For each volume one array acts as primary or source array. This array exports the volume for read/write. The other array acts as secondary or target for replication. For performance reasons it could be an advantage when backup reads data from target array. This is easily possible with Veeam B&R 9.5.
Warning in VCSA Upgrade Wizard
A short (and funny) one. At my last upgrade of VMware vSphere 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 […]
How to find information to create device specific PSP rule
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 […]
3PAR – does CPG setsize to disk-count ratio matter?
In a 3PAR system it is best practice that setsize defined in CPG is a divisor of the number of disks in the CPG. The setsize defines basically the size of a sub-RAID within the CPG. For example a setsize of 8 in a RAID 5 means a sub-RAID uses 7 data and one parity disk.
Remove a cage from a 3PAR array
To remove a cage from a 3PAR array can be a simple task. But it can also be impossible without help from HPE. Before starting at point 1, you should probably check point 3 first. Generally I would recommend to do any of these steps ONLY when your are very familiar to 3PAR systems! know what you are doing! know what are the consequences of […]
3PAR: Considerations when mixing sizes of same disk type
Generally it is supported to mix disks of different sizes of the same type within a 3PAR system. For example you can use 900GB and 1.2TB FC-disks – within the same cage and even within the same CPG. When a disk fails, HPE sends an replacement disk. Some time ago, stock of 900GB FC disks seem to be empty. So when a 900GB disk fails, […]
PowerCLI script to copy PortGroup between hosts
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.
NIC0 error in vCenter HA wizard
Recently I got the following a error on two different vCenter appliances when trying to enable vCenter HA. This is the NIC0 error in vCenter HA wizard: Cannot find a network adapter for the vCenter Server management network (NIC0) on the vCenter Server Appliance guest OS. Once available, the first guest OS network adapter will be selected. Use Edit VM settings to add a network […]
Error send to root account in ESXi
On a HPE Proliant Server upgraded to ESXi 6.0 U3 image: VMware-ESXi-6.0.0-Update3-6921384-HPE-600.10.2.0.23-Feb2018.iso I get the error sent to root-account: WorldList: malloc failed when allocating allNodes list So, you can see the error every few minutes when you logged in to console or using SSH. In /var/log/vmkernel.log you can see this error: User: 3820: sfcb-intelcim: wantCoreDump:sfcb-intelcim signal:6 exitCode:0 coredump:disabled This is caused by a problem with HPE […]
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