Tim is, of course, right on the money.
But, this reminded me of the "Pizze as a Service' explanatory model.
(Some of you may have seen this before.)
I thought it was simultaneously amusing and accurate... :-)
Here it is:
https://www.episerver.com/learn/resources/blog/fred-bals/pizza-as-a-service/
On Tue, Sep 25, 2018 at 4:04 PM Tim Gorman <tim.evdbt@xxxxxxxxx> wrote:
Jeff,
I'm not sure if you are using the terms appropriately in your original
question.
By way of background, cloud services generally consist of IaaS, PaaS, or
SaaS...
- IaaS
- *Infrastructure* as a Service
- hosted servers in the cloud accessible just like any server
on-premise, usually configured and managed by on-premise personnel
- good example: Amazon EC2
- PaaS
- *Platform* as a Service
- managed tools hosted in the cloud and accessed through a portal
- good example: Amazon RDS
- SaaS
- *Software* as a Service
- managed applications hosted in the cloud and accessed through a
portal
- good example: Salesforce
Naturally, behind the scenes PaaS is generally comprised of IaaS, and
behind the scenes SaaS is generally comprised of PaaS and IaaS except the
SaaS vendor is directly accessing and managing them. One way or another,
you "need" IaaS.
What is really important is how we define the verb-with-many-meanings in
your original question: "moved"...
- If "moved" means you rehosted your on-premise EBS to cloud-based
servers, managed by your on-premise staff, then you'd be using IaaS only
- In this scenario, the move works very much as you've probably
done it so many times in the past, except this time you didn't have to
set
up new servers and storage in your data center first
- If "moved" means that you migrated your on-premise EBS into a
cloud-hosted EBS environment, configuring setup through their portals,
uploading legacy data through their portals, then you'd be using SaaS
directly, while somewhere under that SaaS service are possibly PaaS and
definitely IaaS
- In this scenario, it would be like you're going to use EBS that
is already installed and running somewhere else managed by someone else,
and you just have to configure/setup and get your old data transferred
into
it
Hope this helps!
Thanks!
-Tim
On 9/25/18 13:23, Jeffrey Beckstrom wrote:
Back in 2017, I heard that if you moved EBS to the cloud that you needed
IAAS. Is this still true?
Jeffrey Beckstrom
Lead Database Administrator
Information Technology Department
Greater Cleveland Regional Transit Authority
1240 W. 6th Street
Cleveland, Ohio 44113
