High Availability for SQL Server in Vmware vSphere

vHA [italiano]

With VMware advanced PowerCLI scripting and AD Consulting’s deep knowledge of SQL Server databases you can make your databases high available at a fraction of enterprise edition’s cost

What is vHA

vHA builds SQL Server clustered databases in VMware vSphere without using raw device mapping (RDM).

vHA at-a-glance

•   Get rid of raw device mappings
•   Works with every version/edition of SQL Server
•    Zero performance overhead
•   Does not increase storage costs
 •   No certification issues with Microsoft or VMware

high availability

Forget about RDMs

•  RDM is the nightmare of every VMware sysadmin, they deny snapshots, cloning, storage vmotion.

•  With vHA clustered database VM can be treated like any other VM.

Zero performance overhead

•  vHA can be compared to AlwaysON Availability Groups as per functionality but differently from AG, it has zero performance overhead.

•  Your infrastructure is highly available across the globe.

Zero additional storage

•  AlwaysON Availability Groups and other third party solutions that permit HA for SQL Server without the need of RDM duplicate storage because they replicate databases. vHA does not replicate anything.

We achieved High Availability for our SQL Server databases using Standard Edition of SQL Server without the need to build a failover cluster without having to change our Vmware policies.

CIO, Material Handling Company

How vHA works, to achieve SQL Server High Availability

   

vHA does not modify the IO chain of SQL Server and VMware with filter drivers or vmdkreplication,
so compatibility and support is not broken.

Leverage native VMware APIs

•  vHA uses certified Powerschell to arbitrate exclusive access on clustered databases shared disks instead of SCSI-3
•  vHA uses certified Microsoft T-SQL procedure to guarantee database consistency

Always Available

•  Even if vHA crashed, the availability of the protected databases would not be affected
•  vHA orchestrate the database failover, it has no effect on database’s normal operations

Lightweight and Secure

•  vHA is written in .Net and Powershell with the highest level of code security
•  vHA typical installation uses less than 10MB of disk space.
Why AD Consulting

AD Consulting – One Company Solution 
AD Consulting is a company focused on System Integration, Management Services and designing solutions and services for Digital Transformation.
Our competence and reliability is reflected in the cutting-edge technologies available on the market.

Benefits

•  High Availability for SQL Server at a fraction of cost of AlwaysON Availability Groups

•  Fully integrated with VMware vSphere

•  Fully integrated with Windows Server Failover Cluster

vHA

Headquarters

AD Consulting S.p.A.
via Natalia Ginzburg, 40
41123 Modena

Offices:
Vimercate (MB) – Roma
Sesto Fiorentino (FI) – Padova

CONTACTS

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