Tag Archives: Vsphere 5.0

VMware vSphere 5 Memory Management and Monitoring diagram

The VMware vSphere 5 Memory Management and Monitoring diagram provides a comprehensive look into the ESXi memory management mechanisms and reclamation methods. This diagram also provides the relevant monitoring components in vCenter Server and the troubleshooting tools like ESXTOP.

VMware KB: VMware vSphere 5 Memory Management and Monitoring diagram.




What’s New in Site Recovery Manager 5.0

With the new version 5.0 release, VMware has expanded the capabilities of Site Recovery Manager to provide unprecedented levels of protection.   The following are among the significant improvements in Site Recovery Manager 5.0 over 4.1:

 • Completely new user interface

Includes the ability to manage both protected and recovery sites from one interface, as well as more intuitive graphical representations of protected objects, without linked mode.

 • vSphere Replication

vSphere Replication is a VMware proprietary replication engine that copies only changed blocks to the recovery site, ensuring both lower bandwidth utilization and more aggressive recovery point objectives compared with manual, full-system copies of virtual machines. It offers Parallel operation with array-based replication via storage replication adaptors to enable tiered replication offerings.

 • Increased scalability

Site Recovery Manager 5.0 has introduced some changes to the scalability limits of previous versions, offering a larger ceiling of protected systems per instance.

• Planned migration

Prior to Site Recovery Manager 5.0, workflow capabilities included both execution and testing of a recovery plan. With version 5.0, VMware has introduced a new workflow designed to deliver migration from a protected site to a recovery site through execution of a planned migration workflow. Planned migration ensures an orderly and pretested transition from a protected site to a recovery site while minimizing the risk of data loss.

• Re-protection

After a recovery plan or planned migration has run, there are often cases where the environment must continue to be protected against failure, to ensure its resilience or to meet objectives for disaster recovery.

With Site Recovery Manager 5.0, re-protection is a new extension to recovery plans for use only with array-based replication. It enables the environment at the recovery site to establish synchronized replication and protection of the environment back to the original protected site.

• Failback

An automated failback workflow can be run to return the entire environment to the primary site from the secondary site. This will happen after re-protection has ensured that data replication and synchronization have been established to the original site.

• Enhanced dependency definition.

• There is now a faster recovery time if IP customization is required at the recovery site.

• There is now the capability to run callout scripts from within protected virtual machines during a failover.

• There is now the capability to manage the start-up of virtual machines at a more granular level as well as to manage their dependent relationships.

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VMware vSphere Storage Appliance (VSA)

  • VSA is a new product offering in vSphere 5.0
  • vSphere Storage Appliance is software that delivers shared storage capabilities without the cost and complexity of shared storage hardware
  • It installs with just a few mouse clicks and is centrally managed in VMware vCenter Server.
  • Use vSphere’s business continuity features, all without shared storage hardware.

 Key Features of vSphere Storage Appliance

  • Affordable Shared Storage –  Turns internal server storage into fully virtualized, clustered, shared and highly available datastores at a dramatically lower cost than networked, external shared storage
  • Supports up to three nodes
  • Simple installation – Fully automated installation and configuration of vCenter Server, vSphere and VMware VSA
  • Ensures correct configuration for high availability
  • Simple Administration – Tight vCenter Server integration provides simplified administration via VSA plug-in
  • Storage Resilience and Availability  – Mirrors datastores with RAID1 across nodes/RAID 10, within each node. 99.9% availability with HA.
  • Flexibility to migrate to hardware SAN – using storage vMotion.
  • Run vCenter Server separately from your VSA cluster for best protection

VSA Restrictions

  • It is a virtual NFS filer only, and not a block-level storage appliance as VMware implied.
  • NFS shares cannot be created on the VSA for the apps on the VM to access.
  • Storage only presented to the hypervisor and not the VM.
  • Does not support CIFS, ISCSI, FCOE.
  • Does not support VAAI 1.0 ( vStorage API for Array Integration)


VSA provides an alternative shared storage solution for small-to-medium business (SMB) customers who might not be in a position to purchase a SAN or NAS array for their virtual infrastructure.

  • Aimed at SMB market
  • Simple to setup
  • Resilient, has High Availability features
  • Uses NFS protocol
  • VSA pooled storage only presented to Hypervisor
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vSphere 5.0 Licencing Short Take

  • vSphere 5.0 licensing model is per processor (CPU) with pooled vRAM entitlements.
  • Removes two physical constraints (core and physical RAM), replacing them with a single virtual entitlement (vRAM).
  • No limit on CPU cores, now licenced only on physical socket of the processor on host
  • No caps on physical memory on ESX host
  • No Advanced edition. Existing advanced edition licences will be upgraded to Enterprise edition
  • Charge for Virtual Memory configured to each hypervisor (VRAM/ Memory Tax)
  • Available and consumed vRAM capacity can be monitored and managed using the licensing management module of VMware vCenter Server.
  • Hard limit on vRAM pool with VMware vSphere Essentials and Essentials plus. With all other editions, if a limit has been reached, admins can carry provisioning VM’s but will get alerts. .
  • Total vRAM capacity of Essentials and Essentials Plus kits cannot be extended.
  • Customers can create reports and set up alerts to obtain automated notification of when the level of vRAM consumption surpasses a specified level of the available pooled capacity
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VMware VSphere 5.0

VSphere 5.0 is expected to be released in August 2011. Beta release is already available to partners.

Listed below are the new features that will be included in VMware VSphere 5.0

Client Side

  • New Web based Client. No need to install a local client.


Virtual Machine

  • Support for up to 32 vCPU’s per Virtual Machine, previously was 8 vCPU’s.
  • 1 TB RAM per VM, previously was 255GB
  • 64TB Virtual Disk/RDM, previously was 2TB

Cluster Features

  • Storage DRS – Storage Pods
  • Network DRS
  • VASA – Vstorage API Storage Awareness – (monitors IOPS)
  • Application Aware HA (High Availability)

Other Features

  • Host based Replication – SRM 5.0
  • Network I/O Control
  • Storage I/O Control for NFS storage
  • 3D Graphics Support
  • VMFS – READ CACHE ( use RAM as disk)
  • FIPS 140 Compliance


Loads of extra feature enhancement from VSphere 4. Exciting times ahead.

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