SHIFT

--- Sjoerd Hooft's InFormation Technology ---

User Tools

Site Tools


Sidebar

Recently Changed Pages:

View All Pages


View All Tags


LinkedIn




WIKI Disclaimer: As with most other things on the Internet, the content on this wiki is not supported. It was contributed by me and is published “as is”. It has worked for me, and might work for you.
Also note that any view or statement expressed anywhere on this site are strictly mine and not the opinions or views of my employer.


Pages with comments

View All Comments

vmwarevcp

VMware VCP

This is a page about VMware certification.

VCP 5.0

VCP 4.1

Some Practice Exams

Configuration Maximums

Since the Configuration Maximums you need to know change from version to version here are the original configuration maximum pdfs:

vSphere 5.1
vSphere 5.0
vSphere 4.1
vSphere 4.0
VMware Infrastructure 3.5
VMware Infrastructure 3

vReference cards

This website hosts a number of reference cards and overview sheets which are really handy when preparing for an exam.

Additional knowledge for the exams

ToDo

VMware License Comparison

VMWare Network Configuration


  • Considerations when moving an uplink from a standard switch to a distributed switch:
    • The adapter can be added to a distributed switch without a warning
    • If the Standard Switch has no uplinks left, port groups depending on these uplinks will lose their connectivity. See the knowledgebase article above for more information.

vCenter Installation

OneLiners

  • ESX(i) requires NFS version 3 over TCP
    • ESX Server requires a connection to be made and maintained to the NFS server, and thus requires TCP support on your NFS Server.
    • NFS version 2 only supports a 32 bit offset for WRITE requests, meaning that you can't have a file larger then 4 GB.
    • If an ESX host accesses a VMs disk file on an NFS-based datastore, a .lck-XXX lock file is generated in the same directory where the disk file resides to prevent other hosts from accessing this virtual disk file
  • VLANs can only be configured on the port group level, not on the vSwitch level
  • If you crate a Service Console port, the gateway device:
    • Is the network adapter used for the default route
    • Is required ehen using 2 or more uplinks are using the same subnet
    • The default name for the (first) gateway device is vswif0
    • The default isolation address is the ESX service console gateway
  • Plugins
    • Standard installed plugins:
      • vCenter Storage Monitoring
      • vCenter Service Status
      • vCenter Hardware Status
    • Through Plug-in manager it's possible do download/install plugins and to disable them
    • Data Recovery plug-in gets installed on the system running the vSphere Client
  • Data Recovery
    • Can have a maximum of 2 deduplication stores
    • Can have 8 simultaneous running jobs (restore or backup)
    • Processor utilization must not exceed 90% to start a single job and 80% to start multiple jobs
    • Needs 10 GB for indexing and processing restore points and 5 GB per VM to be backed up
  • Cluster Settings
    • VM restart priority:
      • Disabled, Low, Medium, High
    • Host Isolation Response:
      • Leave Powered On, Power Off, Shut down
    • DRS Automation Level:
      • Manual, Partially Automated, Fully Automated
    • Power Management:
      • Off, Manual, Automatic
  • Memory allocation tab for VM:
    • Host memory usage: Consumed: Actual consumption of physical memory that has been allocated to the virtual machine
    • Guest memory usage: Private: Amount of memory backed by host memory and not being shared.
  • The following items can be viewed from the Network Adapters section of the Configuration tab:
    • Speed
    • MAC address
    • Observed IP Ranges
    • Wake on LAN
  • If FT is enabled for a VM in an HA/DRS cluster without host monitoring enabled it could happen that if the primary FT VM fails, a new secondary FT VM is not created and the VM is no longer redundant
  • The Adaptive Scheme utilizes a small number of large LUNs
  • The Predictive Scheme utilizes several LUNs with different storage characteristics
  • vMotion can be used with NPIV enabled virtual machines, but not with disks in multiple datastores
  • Storage vMotion cannot be used on a virtual machine with NPIV enabled
  • Storage vMotion is not allowed if the VM has a snapshot and is turned on
  • To enable Jumbo Frame support for the Software iSCSI Initiator you have to modify both the virtual switch and the VMkernel port
  • Disk shares are enabled on the virtual disk in the VM
  • High Priority vMotion
    • On hosts running ESX/ESXi version 4.1 or later, vCenter Server attempts to reserve resources on both the source and destination hosts to be shared among all concurrent migrations with vMotion. vCenter Server grants a larger share of host CPU resources to high priority migrations than to standard priority migrations. Migrations always proceed regardless of the resources that have been reserved.
    • On hosts running ESX/ESXi version 4.0 or earlier, vCenter Server attempts to reserve a fixed amount of resources on both the source and destination hosts for each individual migration. High priority migrations do not proceed if resources are unavailable.
  • Standard Priority vMotion
    • On hosts running ESX/ESXi version 4.1 or later, vCenter Server reserves resources on both the source and destination hosts to be shared among all concurrent migration with vMotion. vCenter Server grants a smaller share of host CPU resources to standard priority migrations than to high priority migrations. Migrations always proceed regardless of the resources that have been reserved.
    • On hosts running ESX/ESXi version 4.0 or earlier, vCenter Server attempts to reserve a fixed amount resources on the source and destination hosts for each migration. Standard priority migrations always proceed. However, the migration might proceed more slowly or fail to complete if sufficient resources are not available.
  • datastore/Device information:
    • Home → Inventory → Datastores shows location of datastore, nr of hosts, nr of VMs, capacity and free space
    • Host → Configuration tab → Storage → Datastores shows path selection, paths, capacity, free space, location, extents, storage I/O Control
    • Host → Configuration tab → Storage → Device shows location, owner (NMP), ID, capacity, primary partitions, transport (Fibre Channel)
  • Notify switches in the case of failover
    • Yes, whenever a virtual NIC is connected to the vSwitch or whenever that virtual NIC’s traffic is routed over a different physical NIC in the team because of a failover event, a notification is sent over the network to update the lookup tables on the physical switches. In almost all cases, this is desirable for the lowest latency of failover occurrences and migrations with vMotion.
      • The physical switch is notified when the location of a virtual NIC changes
      • A NIC team failover of failback has occurred.
      • When a NIC team member fails, or fails back, the virtual NIC connected to the switch will change.
  • Read Latency: Average amount of time taken during the collection interval to process a SCSI read command issued from the Guest OS to the virtual machine
  • Write latency: Average amount of time taken during the collection interval to process a SCSI write command issued from the Guest OS to the virtual machine
  • vCenter Foundation supports a maximum of 3 hosts
  • If a cluster gets a Host profile Compliance Check and there is none the cluster get checked for normal cluster requirements (HA/DRS/DPM)

New Oneliners

You could leave a comment if you were logged in.
vmwarevcp.txt · Last modified: 2021/09/24 00:25 (external edit)