Come one, come all to the cloud.
That’s been the prevalent refrain in business technology for the past few years — and many companies have made the move.
But even though relying on cloud computing for IT services can and does offer a host of advantages, like agility, mobility, and automation, some businesses might find that some applications are better suited to staying on premises for now.
Mission-critical, legacy, and other large-scale applications like ERPs should get a closer look. Some examples:
- On-premises servers that include large-capacity file shares, of at least 50GB, or operations that would be bandwidth-prohibitive in a cloud scenario.
- Legacy applications that weren’t written for portability or virtualization and are tied to specific environments that can’t be duplicated in the cloud, such as systems that run on older operating systems, require out-of-date drivers, or lack proper security.
- Database or performance-intensive applications, such as financial services trading applications, where revenue is directly tied to transaction speed.
- Very complex enterprise resource planning systems that are now thought of as legacy systems, particularly for companies like manufacturing and finance that deal in products and assets, according to Gartner.
The ability of these systems to migrate and perform, plus the security requirements, customizability, cost, and time of moving them to the cloud are all factors that should be considered.
When taking all of these details into account, business IT leaders may find that some applications would be a good fit for the public cloud, and others would be better suited for a private cloud, or a combination of both (hybrid—off- and on-premises, too). Others, meanwhile, shouldn’t or can’t move to the cloud at all.
Because of the benefits that cloud-based applications bring, plus the complexity of needing to keep some systems on premises, many tech experts are advocating a mix of public and private clouds: the hybrid cloud model (off- and on-premises private and public).
And business IT leaders should expect to see more of this mix, as a Future of Cloud survey predicts that hybrid clouds will be the most prevalent within five years.
What applications has your business moved to the cloud? How are you incorporating public and private clouds with on-premises systems?