Posts Tagged ‘host’

Upgrade VCenter

In order to ensure protection is not affected when upgrading or replacing a vCenter, the vCenter database should be preserved

Upgrade then make sure Replication all comes back green

 

Upgrade Hosts

Before Upgrading the Hosts to the latest ESXi , double check the current version of Zerto supports the version you are putting on or you will get the error on Upgrade “VRA unsupported esx version”

Migrate all VM’s to other VPG’s , migrate 6 VM’s at a time

Once VM’s migrated , shutdown VRA and VRAH , restart upgrade host

You can migrated VCC machines to other hosts without effecting replication

https://nolabnoparty.com/en/vsphere-6-7-upgrade-esxi-6-5-to-6-7-pt-3/

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Enable SSH on the ESXi Machine and run the following

esxcfg-info | grep "Serial N"

If this doesnt work then you can use something like this in powershell however it needs Vcenter and Vsphere CLI

Get-VMHost | Select Name,
    @{N='Serial';E={(Get-EsxCli -VMHost $_).hardware.platform.get().SerialNumber}} |
Export-Csv serial.csv -NoTypeInformation -UseCulture
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The below command needs to be run on Each Host , it  will remove the old one and install the new one

esxcli software vib install -d https://update.nimblestorage.com/esx6.5/ncm/index.xml

The host then needs to be rebooted to install

You can add https://update.nimblestorage.com/esx6.5/ncm/index.xml , as an update location via Update Manager in Vmware Vcenter Server and Add a Host Basline Extension , then remediate this to the hosts as well

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clip_image0024[1]When provisioning a new VMware host important things to configure

1) NTP Server
2) IP of Management with DNS Name
3) Portgroup Names
4) Syslog Server
5) SNMP Trap for monitoring
6) Renaming Local Datastore to something with the server name other than datastore1
7) Nic Teaming

Another thing that is also important to setup is the pass selection policy. Depending on the SAN Manufacturer they will tell you the recommended policy e.g. https://vstorage.wordpress.com/2013/03/28/optimising-vsphere-path-selection-for-nimble-storage/

1) Fixed
2) Round Robin
3) Recently used

Most of the time it will be Round Robin

This can be changed via Command Line

esxcli storage nmp satp set -s VMW_SATP_ALUA -P VMW_PSP_RR

or through the VMWare Client

Go to Configuration Tab on Host , go to Storage , Go to Properties of Datastore and click Manage Paths

When changed make sure no VM’s are on the host as this could disrupt them

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