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This is a list of some practice tests for the VCP5 exam:

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Note

This product has been discountined with the release 5.1 and replaced by the new VDP.

Disclaimer

I do not work for VMware and I’m not writing that VDR is the best backup product! First versions were affected by some bugs and issues… But now (from 1.2 release) could be one possible backup solution (of course with its limits).

VMware Data Recovery (VDR)

Note that this product works quite like the old esXpress (similar idea to have virtual appliance that handle the backup procedure).

continue reading…

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After the recent announce of  new Equallogic storage I’ve notice some tweets that need more  clarifications.

To take advantage of new vStorage API for vSphere you do not need the new storage, but only the firmware that support the required feature:

  • VAAI can be used also in vSphere 4.1 (only in the Enterprise and Enterprise+ editions)  both with firmware 5.0.x or 5.1.x. With the new 5.1 firmware a new version of VAAI is implemented with a new feature for thin provisioning (but in this case it’s also required vSphere 5).
  • VASA can be used only with vSphere 5 and the new 5.1 firmware, but old with a old Equallogic storage (check controller compatibility for the 5.1 upgrade).
  • The new related software, like for example the EqualLogic Host Integration Tools for VMware 3.1, are not strictly required to use Equallogic in a virtual environment or to use vSphere integration.

See also:

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Dell announce the new Equallogic array with the introduction of 2.5-inch drive support, providing greater density that enables users to store more in less space. New storage arrays include:

  • EqualLogic PS4100 Series — ideal for small-to-medium businesses or remote office locations with growing storage needs. The SANs, supporting up to 36TB in a single array and 72TB in a single group, can scale as storage demands increase by seamlessly adding additional PS4100 or PS6100 arrays into an EqualLogic group.
  • EqualLogic PS6100 Series — designed to provide mid-sized customers with a scalable storage environment, up to 72TB in a single array and 1.2PB in a single group, that can easily accommodate both high-performance and high-capacity drive options. The PS6100 family is ideal for customers looking for a storage solution to support the storage demands of a highly virtualized data center environment where the seamless movement and protection of virtual machines, applications and data is crucial.

With the newly redesigned, compact form factor, PS6100 customers can achieve the same performance for their typical workload using half the number of arrays, and receive 50 percent more expansion capacity when compared with the previous generation EqualLogic arrays. Customers can gain up to 60 percent performance improvement on typical workloads with the EqualLogic PS Series compared to the previous generation EqualLogic arrays. The new controller type of the PS6100 series has now 8 GB of cache (the PS6000 series has 4 GB and the PS4000 “only” 2 GB).

Those new Equallogic are equiped with the new 5.1 firmware that include new specific API for vSphere integration, like vSphere Storage API – Storage Awareness (VASA) for thin provisioning awareness and new vSphere Storage APIs – Array Integration (VAAI). Note that this improvement are firmware related, so can be applied also to old Equallogic series (if the controller can be upgraded to the new 5.1 firmware).

Dell also has begun shipping the new EqualLogic FS7500, the company’s latest NAS solution that works with EqualLogic PS Series arrays to deliver the only scale-out, unified storage platform for mid-size deployments. The FS7500 uses the Dell Scalable File System, which offers several advanced features including cache monitoring, load balancing and multi-threading for fast I/O processing.

See also:

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Official announce: Veeam unveils Veeam Backup & Replication v6, extending leadership in virtualization data protection.

Veeam Software today unveiled major enhancements in Veeam Backup & Replication™ v6.

Probably the most evident new feature is theMulti-hypervisor support (actually limited only to VMware and Windows Server Hyper-V).

Note that the vSphere 5 compatibility is not specified, but the related Storage API are not changed (or not too much) and also the v 5.0.2 works “fine” on vSphere

General availability of v6 is expected in Q4 2011. For more information and updates prior to GA, go to http://go.veeam.com/v6-backup-replication.

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In a physical environment usually the term CPU is used to refer to the physical package (or socket). The real processing unit inside this package are called cores (and not that each core can have inside more ALU and can be seen as more logical cores with hyper-threading feature). More CPU usually define a SMP system, more cores a multi-core CPU, more CPU each with more cores a complex system (usually the NUMA architecture is used in this case).

In a virtual enviroment the term vCPU is used to refer to a core assigned to a VM. More vCPU define a vSMP system, similar to a physical system with more CPU each with a single core.

The number of vCPUs can be assigned is determined by the license edition (for more info see http://www.vmware.com/products/vsphere/buy/editions_comparison.html): for all edition except the Enterprise+ was (in vSphere 4.x) 4 vCPU, now (in vSphere 5) is 8 vCPU. For the Enterprise+ edition was 8 and now is 32.

But the number of vCPU can have some impact on guest OS CPU licensing. For example Windows XP or 7 is limited to only 2 vCPUs as “physical” CPUs and can not use more than this limit… But can use more cores.

To get around this limit, it’s possible expose to a VM a more complicated structure where each vCPU has more than one cores. This can be set by and advanced setting in the vmx file. Note that from vSphere 5 this is possible also from graphics interface.

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The list of the vExpert 2011 is now available on line. But note that this list could not cover all the vExpert people  (the list is not automatic but each vExpert must add his entry) and, of course, do not include the vExpert 2009 and 2010.

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