Here are a few facts that sould be concidered by planing and deploying VSAN
nfs client for windows (server 2012)
Installation and how to use: Install the client by adding the feature “nfs client for windows” – straight forward … no reboot required use nftadmin to configure the client, if necessary use mount to map shares use umount to remote mount points Example mount \\nas-device\nas\share u: could be interesting: -o mtype=soft|hard hard: in case the nfs-server goes offline, the nfs client for windows will try to reconnect until the server […]
performance counter
%IDLE Percentage of time the resource pool, VM, or world was idle. Subtract this percentage from %WAIT to see the percentage of time the resource pool, VM, or world was waiting for some event. The difference, %WAIT- %IDLE, of the vCPU worlds can be used to estimate guest I/O wait time. %RDY Percentage of time the resource pool, VM, or world was ready to run, […]
VSAN configuration minima and maxima
Status at 2014.04 Disk groups [MIN]: 1 per host; [MAX]: 5 per host Flash devices (SAS, SATA, PCIe SSD): 1 per disk group Magnetic disk devices [MIN]: 1 HDD per disk group [MAX]: 7 HDDs per disk group Disk formatting overhead: 750 MB per HDD Nodes in cluster [MIN]: 3 hosts; [MAX]: 32 nodes VMs on VSAN [MAX]: 3200 VMs Components (objects (vmdk, swap, config, snapshot) consist of components) per Host [MAX]: 3000 Memory and CPU overhead [MAX]: 10% […]
Links
official VMware VSAN Sizing Tool OFFICIAL VMware Virtual SAN Blog Index page Virtual SAN Ready Nodes
add (VMware-)snapins at start
# Check if profile-file exists (difference between powershell and powershellISE) Path $profile # create, if it not exists Item -path $profile -type file -force | Out-Null # ADD to prifile file: #Load Windows PowerShell cmdlets for managing vSphere Add-PsSnapin VMware.VimAutomation.Core -ea “SilentlyContinue” Add-PsSnapin VMware.VimAutomation.VDS -ea “SilentlyContinue” # if necessary, add more snapins according to PowerCLI User Guide
eject CDs
# eject all media from every drive from every VM get-vm |get-cddrive |set-cddrive -nomedia
set syslog settings
# Conncect to vCenter Server/Host Connect-VIServer -Server a.b.c.d -user username -password password Get-VMHostAdvancedConfiguration -name Syslog.Remote.Hostname -VMhost fqdn Set-VMHostAdvancedConfiguration -name Syslog.Remote.Hostname IP-ADRESSE -VMhost fqdn # show syslog settings Get-VMHost ESXHostnameOrIP | Get-VMHostSysLogServer # set syslog settings Get-VMHost ESXHostnameOrIP | Set-VMHostSysLogServer -SysLogServer SyslogHostnameOrIP -SysLogServerPort PortNumber # for hosts added by Connect-VIServer Get-VMHost | Set-VMHostSysLogServer -SysLogServer a.b.c.d -SysLogServerPort 514
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