With November 2015 public CAs do not issue new certificates that uses internal names or reserved IP addresses in subjectAltName or in commonName. Furthermore such certificates will be revoked on October 1st, 2016. Internal names are hostnames that do not end with an Top Level Domain ending (.com, .de, …). For example: .local, .internal. Also NetBIOS names without any domain extension are affected. Reserved IP addresses are defined […]
useful cli for VSAN
get information using esxcli esxcli vsan storage list details on physical devices esxcli vsan policy getdefault details on default policy, most often referred as “none” for cliesx vsan reference click here convince the host that there is a SSD (if there is a really one) search for the SSD using: esxcli storage nmp device list you will get a satp-type and a device-id. The satp-type can be […]
Steps to install VSAN (under construction)
This post contains important steps to create a VSAN-volume in a cluster. The list does not claim to be comprehensive.
design considerations for VSAN
Here are a few facts that sould be concidered by planing and deploying VSAN
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
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