VCP4 Notes


Finally passed the VCP (VMware Certified Professional) today – clocked at 413/500 ! The toughest, for me, was to remember the myriad of vSphere maximum numbers. Some notes I had written down to remember a few things easily:

VCenter Ports

80, 389 (LDAP), 443, 636(Linked Mode), 8080, 8443
902/903 – For vClient to show VM Console

vSphere Network Switch Maximums

A quick diagram made it easier … First thing I did, after settling down for the exam, was to draw this on the erasable board.

ESX Partition sizes

I couldn’t remember them, so made a list in an order that was easy for me to remember !

Partition Size
/ 5 GB
Swap 600 MB/1600 MB
/boot 1.25 GB (1100MB for /boot and rest for vmkcore)
Esxconsole..vmdk 1200 MB
Optional
/home 512
/tmp 1024
/usr
/var/log 2000

Maximums

Same story here. Too many mixed numbers all over the map. So I created a sorted list and the (kind of) ER diagram mentioned earlier !

Number Attributes that have this number as value

4

iSCSI initiators/Host

Failovers/Cluster

8

HBAs/Host

iSCSI paths to a LUN

16

HBA Ports

DistSw/vCenter

20

VCPUs/Core

32

Extents/Volume

Hosts/Cluster

FC Paths to a LUN

e1000 NIC ports/Host

40

VMs/HA Closter (> 8 Hosts)

50%

Failover as % of Cluster

61

Static Targets/iSCSI Adapter port

64

Dynamic Targets/iSCSI Adapter port

Logical Processors/Host

Hosts/DistSw

100

VMs/HA Cluster(<= 8 hosts)

Hosts/DC

248

StdSw/Host

256

VMs / Volume

Volumes/Host

LUNs/Host

Targets/HBA

VMs/Host DRS Cluster

320

VMs/Host

512

VCPUs/Host

PortGroups /vSS

dPortGroups/vCenter

Resource Pools/Cluster

1024

Paths to a host

Children / Resource Pool

1280

VMs/DRS Cluster

4088

Ports/StdSs

4096

StdSwitch/vDSwitch ports per Host

Resource Pools/Host

6000

vDSS ports/vCenter

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