Merge pull request #87691 from stevestein/sqldb-throughput-update

update SQL DB throughput

Author: PRMerger18

articles/sql-database/sql-database-service-tiers-dtu.md

@@ -10,7 +10,7 @@ ms.topic: conceptual
 author: stevestein
 ms.author: sstein
 ms.reviewer: carlrab
-ms.date: 06/25/2019
+ms.date: 09/06/2019
 ---
 # Service tiers in the DTU-based purchase model
 
@@ -31,7 +31,7 @@ Choosing a service tier depends primarily on business continuity, storage, and p
 |Uptime SLA|99.99%|99.99%|99.99%|
 |Backup retention|7 days|35 days|35 days|
 |CPU|Low|Low, Medium, High|Medium, High|
-|IO throughput (approximate) |2.5 IOPS per DTU| 2.5 IOPS per DTU | 48 IOPS per DTU|
+|IO throughput (approximate) |1-5 IOPS per DTU| 1-5 IOPS per DTU | 25 IOPS per DTU|
 |IO latency (approximate)|5 ms (read), 10 ms (write)|5 ms (read), 10 ms (write)|2 ms (read/write)|
 |Columnstore indexing |N/A|S3 and above|Supported|
 |In-memory OLTP|N/A|N/A|Supported|