APPLIES TO: Azure Database for PostgreSQL - Flexible Server
You can create an Azure Database for PostgreSQL flexible server instance in one of three pricing tiers: Burstable, General Purpose, and Memory Optimized. The pricing tier is calculated based on the compute, memory, and storage you provision. A server can have one or many databases.
Resource/Tier Burstable General Purpose Memory Optimized VM-series B-series Ddsv5-series,To choose a pricing tier, use the following table as a starting point:
Pricing tier Target workloads Burstable Workloads that don't need the full CPU continuously. B-series VMs utilize a CPU credit model to track how much CPU is consumed. The virtual machine accumulates CPU credits when a workload is operating below the base CPU performance threshold and uses credits when running above the base CPU performance threshold until all of its credits are consumed. Upon consuming all the CPU credits, a B-series virtual machine is throttled back to its base CPU performance until it accumulates the credits to burst again. B series VMs are ideal for web servers, proof of concepts, small databases, and development build environments. Burstable SKU is usually not recommended for production use. General Purpose D-series VMs provide a solid balance between CPU capabilities and memory size with scalable I/O throughput which makes them suitable for most production workloads. Examples include servers for hosting web and mobile apps and other enterprise applications. Memory Optimized E- Series VMs that are suitable for high-performance database workloads that require in-memory performance for faster transaction processing and higher concurrency. Examples include servers for processing real-time data and high-performance transactional or analytical apps.After you create a server for the compute tier, you can change the number of vCores (up or down) and the storage size (up) in seconds. You also can independently adjust the backup retention period up or down. For more information, see the Scaling resources in Azure Database for PostgreSQL flexible server page.
Compute tiers, vCores, and server typesYou can select compute resources based on the tier, vCores, and memory size. vCores represent the logical CPU of the underlying hardware.
The detailed specifications of the available server types are as follows:
SKU name vCores Memory size Maximum supported IOPS Maximum supported I/O bandwidth Burstable B1ms 1 2 GiB 640 10 MiB/sec B2s 2 4 GiB 1,280 15 MiB/sec B2ms 2 8 GiB 1,920 22.5 MiB/sec B4ms 4 16 GiB 2,880 35 MiB/sec B8ms 8 32 GiB 4,320 50 MiB/sec B12ms 12 48 GiB 4,320 50 MiB/sec B16ms 16 64 GiB 4,320 50 MiB/sec B20ms 20 80 GiB 4,320 50 MiB/sec General Purpose D2s_v3 / D2ds_v4 2 8 GiB 3,200 48 MiB/sec D2ds_v5 / D2ads_v5 2 8 GiB 3,750 85 MiB/sec D4s_v3 / D4ds_v4 4 16 GiB 6,400 96 MiB/sec D4ds_v5 / D4ads_v5 4 16 GiB 6,400 145 MiB/sec D8s_v3 / D8ds_v4 8 32 GiB 12,800 192 MiB/sec D8ds_v5 / D8ads_v5 8 32 GiB 12,800 290 MiB/sec D16s_v3 / D16ds_v4 16 64 GiB 25,600 384 MiB/sec D16ds_v5 / D16ds_v5 16 64 GiB 25,600 600 MiB/sec D32s_v3 / D32ds_v4 32 128 GiB 51,200 768 MiB/sec D32ds_v5 / D32ads_v5 32 128 GiB 51,200 865 MiB/sec D48s_v3 / D48ds_v4 48 192 GiB 76,800 1152 MiB/sec D48ds_v5 / D48ads_v5 48 192 GiB 76,800 1200 MiB/sec D64s_v3 / D64ds_v4 / D64ds_v5/ D64ads_v5 64 256 GiB 80,000 1200 MiB/sec D96ds_v5 / D96ads_v5 96 384 GiB 80,000 1200 MiB/sec Memory Optimized E2s_v3 / E2ds_v4 2 16 GiB 3,200 48 MiB/sec E2ds_v5 / E2ads_v5 2 16 GiB 3,200 85 MiB/sec E4s_v3 / E4ds_v4 4 32 GiB 6,400 96 MiB/sec E4ds_v5 / E4ads_v5 4 32 GiB 6,400 145 MiB/sec E8s_v3 / E8ds_v4 8 64 GiB 12,800 192 MiB/sec E8ds_v5 / E8ads_v5 8 64 GiB 12,800 290 MiB/sec E16s_v3 / E16ds_v4 16 128 GiB 25,600 384 MiB/sec E16ds_v5 / E16ds_v5 16 128 GiB 25,600 600 MiB/sec E20ds_v4 20 160 GiB 32,000 480 MiB/sec E20ds_v5 / E20ads_v5 20 160 GiB 32,000 750 MiB/sec E32s_v3 / E32ds_v4 32 256 GiB 51,200 768 MiB/sec E32ds_v5 / D32ads_v5 32 256 GiB 51,200 865 MiB/sec E48s_v3 / E48ds_v4 / E48ds_v5 / E48ads_v5 48 384 GiB 76,800 1152 MiB/sec E48ds_v5 / E48ads_v5 48 384 GiB 76,800 1200 MiB/sec E64s_v3 / E64ds_v4 64 432 GiB 80,000 1200 MiB/sec E64ds_v5 / E64ads_v4 64 512 GiB 80,000 1200 MiB/sec E96ds_v5 /E96ads_v5 96 672 GiB 80,000 1200 MiB/secImportant
Minimum and maximum IOPS are also determined by the storage tier so please choose a storage tier and instance type that can scale as per your workload requirements.
PriceFor the most up-to-date pricing information, see Azure Database for PostgreSQL flexible server pricing.
Azure portal also shows you an estimation of the monthly costs of a server configuration, based on the options selected.
That estimation can be seen throughout the server creation experience, in the New Azure Database for PostgreSQL Flexible server page:
It can also be seen for existing servers if, in the resource menu of an existing instance, under the Settings section, you select Compute + storage:
If you don't have an Azure subscription, you can use the Azure pricing calculator to get an estimated price. In the Azure pricing calculator website, select Databases category, and then select Azure Database for PostgreSQL to add the service to your estimate and then customize the options.
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