Merge pull request #102158 from dimitri-furman/dimitri-furman

Clarified read-only replica availability

Author: PRMerger20

articles/sql-database/sql-database-service-tiers-general-purpose-business-critical.md

@@ -10,7 +10,7 @@ ms.topic: conceptual
 author: stevestein
 ms.author: sstein
 ms.reviewer: sashan, moslake, carlrab
-ms.date: 10/01/2019
+ms.date: 01/23/2020
 ---
 # Azure SQL Database service tiers
 
@@ -45,7 +45,7 @@ The following table describes the key differences between service tiers for the
 |**Availability**|All| 99.99% |  [99.95% with one secondary replica, 99.99% with more replicas](sql-database-service-tier-hyperscale-faq.md#what-slas-are-provided-for-a-hyperscale-database) | 99.99% <br/> [99.995% with zone redundant single database](https://azure.microsoft.com/blog/understanding-and-leveraging-azure-sql-database-sla/) |
 |**Backups**|All|RA-GRS, 7-35 days (7 days by default)| RA-GRS, 7 days, constant time point-in-time recovery (PITR) | RA-GRS, 7-35 days (7 days by default) |
 |**In-memory OLTP** | | N/A | N/A | Available |
-|**Read-only replicas**| | 0  | 0 - 4 | 1 (built-in, included in price) |
+|**Read-only replicas**| | 0 built-in <br> 0 - 4 using [geo-replication](sql-database-active-geo-replication.md) | 0 - 4 built-in | 1 built-in, included in price <br> 0 - 4 using [geo-replication](sql-database-active-geo-replication.md) |
 |**Pricing/billing** | Single database | [vCore, reserved storage, and backup storage](https://azure.microsoft.com/pricing/details/sql-database/single/) are charged. <br/>IOPS is not charged. | [vCore for each replica and used storage](https://azure.microsoft.com/pricing/details/sql-database/single/) are charged. <br/>IOPS not yet charged. | [vCore, reserved storage, and backup storage](https://azure.microsoft.com/pricing/details/sql-database/single/) are charged. <br/>IOPS is not charged. |
 || Managed Instance | [vCore and reserved storage](https://azure.microsoft.com/pricing/details/sql-database/managed/) is charged. <br/>IOPS is not charged.<br/>Backup storage is not yet charged. | N/A | [vCore and reserved storage](https://azure.microsoft.com/pricing/details/sql-database/managed/) is charged. <br/>IOPS is not charged.<br/>Backup storage is not yet charged. | 
 |**Discount models**| | [Reserved instances](sql-database-reserved-capacity.md)<br/>[Azure Hybrid Benefit](sql-database-azure-hybrid-benefit.md) (not available on dev/test subscriptions)<br/>[Enterprise](https://azure.microsoft.com/offers/ms-azr-0148p/) and [Pay-As-You-Go](https://azure.microsoft.com/offers/ms-azr-0023p/) Dev/Test subscriptions| [Azure Hybrid Benefit](sql-database-azure-hybrid-benefit.md) (not available on dev/test subscriptions)<br/>[Enterprise](https://azure.microsoft.com/offers/ms-azr-0148p/) and [Pay-As-You-Go](https://azure.microsoft.com/offers/ms-azr-0023p/) Dev/Test subscriptions| [Reserved instances](sql-database-reserved-capacity.md)<br/>[Azure Hybrid Benefit](sql-database-azure-hybrid-benefit.md) (not available on dev/test subscriptions)<br/>[Enterprise](https://azure.microsoft.com/offers/ms-azr-0148p/) and [Pay-As-You-Go](https://azure.microsoft.com/offers/ms-azr-0023p/) Dev/Test subscriptions|