Saas:单实例vs多实例vs单租户vs多租户? [英] Saas: Single-instance vs Multi-instance vs Single-tenant vs Multi-tenant?

问题描述

我一直在阅读有关实例和租户以及Saas体系结构的信息.我的问题如下(请更正您发现以下任何一项我错了的内容):

I've been reading about instances and tenants and in the Saas architecture. My questions are as follows (please correct anything that you notice I've gotten wrong with any of the following terms):

1)实例:一个软件的实例是否只是该软件的副本以及具有其自己的数据库的副本?除此之外，还有什么?

1) Instance: Is an instance of a piece of software just a copy of that software with its own database? Is there anything more to it than that?

2)租户:租户是共享单个实例的一组公共访问权限的用户/一组用户吗?

2) Tenant: Is a tenant a user / group of users that share a common set of access privileges to an individual instance?

3)单实例::如果Saas提供者提供单实例服务，这是否意味着他们仅创建其软件的单个实例?还是意味着可能有多个实例，但是每个实例可以为多个租户提供服务?如果是这样，单实例是否与多租户相同?

3) Single-instance: If a Saas provider offers single-instance service, does this mean that they create only a single instance of their software? Or does it mean that there could be multiple instances, but that each instance can serve multiple tenants? If so, is single-instance the same as multi-tenant?

4)多实例:是不是意味着每个实例只能为一个租户服务，或者是否可以有多个实例为每个租户服务? IE.多实例服务可以是单租户还是多租户?

4) Multi-instance: Does this mean that each instance can serve only one tenant, or can there be multiple instances that each serve multiple tenants? ie. Can a multi-instance service be either single-tenant or multi-tenant?

5)单租户:这是否仅表示一个实例只能服务一个租户，或者还意味着存在多个实例? IE.单租户服务既可以是单实例又可以是多实例吗?

5) Single-tenant: Does this just mean that an individual instance can serve only one tenant, or does it also imply that there are multiple instances? ie. Can a single-tenant service be both single-instance and multi-instance?

6)多租户:这是否仅意味着一个实例可以为多个租户提供服务，还是意味着只有一个实例? IE.多租户服务既可以是单实例又可以是多实例吗?

6) Multi-tenant: Does this just mean that an individual instance can serve multiple tenants, or does it imply that there is only a single instance? ie. Can a multi-tenant service be both single-instance and multi-instance?

7)总结:您可以使用单实例+单租户，单实例+多租户，多实例+单租户以及多实例+多租户吗?房客?

7) To sum up: Can you have single-instance+single-tenant, single-instance+multi-tenant, multi-instance+single-tenant, and multi-instance+multi-tenant?

推荐答案

我将从我的直接经验中写信:

I'm going to write from my direct experience:

1)简单的答案是是".

1) simple answer is 'yes'.

2)几乎是:可能会有完善的访问权限，例如一两个管理员和一般用户.

2) nearly yes: there will probably be refined access rights, say an administrator or two, and general users.

3)他们只是为您提供该模块的一个实例，该实例将是单个租户.

3) they're providing you with just one instance of that module, which will be single tenant.

4)他们为您提供了该模块的多个实例，这些实例将是单个租户.

4) they're providing you with multiple instances of that module, which will be single tenant.

5)我将使用单租户来指代托管实例的服务器，该服务器仅由一个租户使用.这样做可能是为了获得明显的安全利益，或者服务器运行的时间段对于SaaS提供商来说不是标准的，例如整年都使用UTC.

5) I would use single-tenant to refer to the server hosting the instances is used by only one tenant. This might be done for perceived security benefits, or the server is running on a time zone that is non-standard for SaaS provider, like staying on UTC all year round.

6)我将使用多租户来指代托管多个实例的实例的服务器.这样往往更具成本效益，并且可能与单租户一样安全.

6) I would use multi-tenant to refer to the server hosting the instances is used by more than one tenant. This tends to be more cost effective and probably just as secure as single-tenant.

7)是，不，是，是.

7) yes, no, yes, yes.

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