Register Log in

High Availability and Disaster Recovery for Small Businesses

Articles tagged availability

High Availability and Disaster Recovery for Small Businesses

Too often in the past , High Availability and Disaster Recovery have been marketed as expensive choices for businesses with deep pockets. The truth is...

13 min read

AlwaysOn Availability Groups – What Not to do when Adding Databases

SQL Server's AlwaysOn Availability Groups provide a very resilient way of providing High-availability for SQL Server databases, but there are inevitable limits to their capacity....

10 min read

Hosting SQL Server in Hyper-V Replica Environment

A Hyper-V replica will provide a rapid disaster-recovery by simply replicating to a standby site a VM running at the primary site. Is it, therefore,...

26 min read

Hyper-V Migration Technologies

Hyper-V has become far more sophisticated since the release V3 of Windows 2012, but it means that there are now a number of alternative ways...

29 min read

Expanding AlwaysOn Availability Groups with Replication Subscribers

High Availability (HA) and Disaster Recovery (DR) can be provided for subscription databases from an AlwaysOn Avaliability Group, but the secondary replicas will need to...

8 min read

Expanding AlwaysOn Availability Groups with Replication Publishers

SQL Server 2012 AlwaysOn Availability Groups provide a high-availability and disaster-recovery solution for you SQL Server 2012 environments. Replication has been around in SQL Server...

9 min read

Encrypting Your SQL Server 2012 AlwaysOn Availability Databases

It is likely that you'll want to add a database with TDS Encryption to your AlwaysOn Availability Group. If you do so you'll find that...

8 min read

A first look at SQL Server 2012 Availability Group Wait Statistics

If you are trouble-shooting an AlwaysOn Availability Group topology, a study of the wait statistics will give a pointer to many of the causes of...

15 min read

SQL Server 2012 AlwaysOn

SQL Server AlwaysOn provides a high-availability and Disaster-recovery solution for SQL Server 2012. It makes use of existing SQL Server features, particularly Failover Clustering, and...

19 min read

Recover a Mailbox Server in A Database Availability Group (DAG)

When one mailbox server in a Database Availability Group (DAG) is accidentally deleted, then it is supposedly easy to fix the problem, but if the...

4 min read
Database Administration
in Database Administration

Database Properties Health Check

Within an instance of SQL Server, the database settings can have a direct effect on the database's behavior, performance and availability. Sometimes, it is difficult...

35 min read
General
in General

High Availability or High Recoverability?

Having pierced the veil of confusion surrounding High Availability, Wesley David finds himself asked (and being asked) whether HA is worth the money it burns...

20 min read

SMTP Routing Changed in an Exchange Database Availability Group

In Exchange Server 2010 it is possible to make the system more resilient by creating a Database Availability Group (DAG) where the nodes contain multiple...

3 min read

7 Things that High Availability is Not

Wesley has heard High Availablity touted as all sorts of technological cure-all for busy SysAdmins and DBAs, and now he's taking a stand against it....

8 min read

Exchange 2010 DAG Creation and Configuration Part 1

If you're using Exchange 2010, then you're probably interested in using the new Database Availability Group feature for your High Availability needs. The DAG is...

13 min read

Increasing the Availability of Virtualised Applications and Services

By using a virtualized clustering computing environment with failover, you can improve server availability without using as many physical computers. A group of independent computers...

23 min read

Exchange 2010 High Availability

In April 2009 Microsoft released a public beta of Exchange 2010, the latest and greatest version of a part of its unified communications family of...

14 min read

Disaster Recovery for SQL Server Databases

High-Availability depends on how quickly you can recover a production system after an incident that has caused a failure. This requires planning, and documentation. If...

27 min read

High Availability in Exchange 2007

Neil Hobson writes about the ways that MS Exchange 2007 can ensure that your organisations messaging remains available. He looks at the way that the...

17 min read

Database High-Availability: Soup to Nuts

William Brewer argues that, although there are technologies around that will minimise downtime in most circumstances, they are only part of the solution. At the...

14 min read