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this error is related to timeout of write messages. There are people that recommend to use vlan to get better throughput to transfer the data. So the problem involve here: host: ip stack, adapter, network switch, NetApp network adapter etc. Other thing you can do is to increase the timeout of write at disk. echo 180 > /sys/block/sdX/device/timeout at ...


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A bit long for a one-liner, but here you go (again?) get-cluster | select @{n="cluster";e={$_.name}}, @{n="hosts";e={($_ | get-vmhost).count}}, @{n="vms";e={($_ | get-vm).count}} | sort cluster | ft -auto


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the solution to fix this is to sync all parties (ESXi hosts, vcenter, VRM Appliance) with ntp servers. Once this done - the error is gone.


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AFAIK you cannot make ESXi to wait for a VM to start before mounting the datastores. I may be wrong though. The datastores are mounted way before any VM can boot up. In general iSCSI connects right away if you do a rescan on the iSCSI sw adapter after your storage VM boots up (and rescan it works way better than NFS, where if it gets disconnected/inactive ...


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That method should work, mostly the esxi host's are static once they are configured with an ip, interfaces, and management. If you are talking about backing up the configuration of VCenter then you can just export the database that it uses to run. Vcenter is where all of the vlans, host configurations are mostly stored.


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You cannot just unplug a server and plug it into a colo providers network, turn it on and expect it to work. You need to update all the IP Addresses, gateways and so on on those machines and expose them in the correct way. And there might be a bit more to it than just changing each machines IP details. These servers might be inter-related. i.e. they may ...


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The problem encountered here was caused by python or the vcsa-deploy utility attempting to use the proxy defined in the shell environment: https_proxy=http://proxy.example.com:3128/ I ran vcsa-deploy with strace and saw that it was attempting to use that proxy. I used the unset https_proxy command to temporarily disable that proxy, repeated the ...


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Maybe touch a marker file in the %post script? See docs at https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/s1-kickstart2-postinstallconfig.html


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This happened quite a bit with some of our Windows VMs (2008 R2 and 2012). However, the problem only shows itself after a number of reboots - the actual number seems rather nondeterministic (betwwen 2 and 20). After setting the ArpRetryCount to 0 as recommended in KB article 1028373 the problem did not occur anymore. To work around this issue, turn off ...


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VMware has a hardware compatibility guide (HCL) which outlines which servers are supported by which versions of the ESXi hypervisor. My recommendation if you want to buy a used HP server is to use G6, G7, Gen8 or newer HP servers in the 300-series or higher (DL360/DL380). Anything else is going to be missing critical support or features under VMware.



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