The memory and storage optimized Mbs v4 VMs use 6th generation Intel® Xeon® Scalable processors and provide higher remote disk storage performance. These new VM sizes offer up to 4 TB of RAM and up to 780,000 IOPS and 16 GBps throughput to remote disk storage with an NVMe interface by using Ultra Disk and Premium SSD v2.
The increased remote storage performance of these VMs is ideal for storage throughput-intensive workloads such as relational databases and data analytics applications.
Host specifications
| Part |
Quantity
Count Units |
Specs
SKU ID, Performance Units, etc. |
|
| Processor |
16 - 304 vCPUs |
6th generation Intel® Xeon® Scalable processors (Granite Rapids) [x86-64] |
|
| Memory |
128 - 3892 GiB |
|
|
| Local Storage |
None |
|
|
| Remote Storage |
64 Disks |
64,000 - 780,000 IOPS
2,000 - 16,000 MBps |
|
| Network |
8 NICs |
16,000 - 100,000 Mbps |
Interfaces: NetVSC, MANA |
| Accelerators |
None |
|
|
Feature support
Premium Storage: Supported
Premium Storage caching: Supported
Live Migration: Limited Support
Memory Preserving Updates: Not Supported
Generation 2 VMs: Supported
Generation 1 VMs: Not Supported
Accelerated Networking: Supported
Ephemeral OS Disk: Not Supported
Nested Virtualization: Not Supported
Hibernation: Not Supported
Write Accelerator: Not Supported
Sizes in series (NVMe)
vCPUs (Qty.) and Memory for each size
| Size Name |
vCPUs (Qty.) |
Memory (GiB) |
| Standard_M16bs_v4 |
16 |
128 |
| Standard_M32bs_v4 |
32 |
256 |
| Standard_M48bs_v4 |
48 |
384 |
| Standard_M64bs_v4 |
64 |
512 |
| Standard_M96bs_1_v4 |
96 |
768 |
| Standard_M128bs_1_v4 |
128 |
1024 |
| Standard_M256bs_2_v4 |
256 |
2048 |
| Standard_M304bs_4_v4 |
304 |
3892 |
VM Basics resources
Local (temp) storage info for each size
Remote (uncached) storage info for each size
| Size Name |
Max Remote Storage Disks (Qty.) |
Max Uncached Premium SSD IOPS |
Max Uncached Premium SSD Throughput (MB/s) |
Max Uncached Ultra Disk and Premium SSD v2 IOPS |
Max Uncached Ultra Disk and Premium SSD v2 Throughput (MB/s) |
| Standard_M16bs_v4 |
64 |
64,000 |
2,000 |
64,000 |
2,000 |
| Standard_M32bs_v4 |
64 |
88,000 |
4,000 |
88,000 |
4,000 |
| Standard_M48bs_v4 |
64 |
88,000 |
4,000 |
130,000 |
4,000 |
| Standard_M64bs_v4 |
64 |
160,000 |
6,000 |
160,000 |
6,000 |
| Standard_M96bs_1_v4 |
64 |
260,000 |
12,000 |
400,000 |
12,000 |
| Standard_M128bs_1_v4 |
64 |
400,000 |
12,000 |
500,000 |
12,000 |
| Standard_M256bs_2_v4 |
64 |
500,000 |
14,000 |
780,000 |
16,000 |
| Standard_M304bs_4_v4 |
64 |
500,000 |
14,000 |
780,000 |
16,000 |
Storage resources
Table definitions
- Storage capacity is shown in units of GiB or 1024^3 bytes. When you compare disks measured in GB (1000^3 bytes) to disks measured in GiB (1024^3), remember that capacity numbers given in GiB might appear smaller. For example, 1023 GiB = 1098.4 GB.
- Disk throughput is measured in input/output operations per second (IOPS) and MBps where MBps = 10^6 bytes/sec.
- IOPS and MBps listed here refer to uncached mode for data disks.
- To learn how to get the best storage performance for your VMs, see Virtual machine and disk performance.
- The IOPS specification uses common small random block sizes like 4 KiB or 8 KiB. Maximum IOPS is an "up-to" value and is measured using 4 KiB random reads workloads.
- The throughput specification uses common large sequential block sizes like 128 KiB or 1024 KiB. Maximum throughput is an "up-to" value and is measured using 128 KiB sequential reads workloads.
Network interface information for each size
| Size Name |
Max NICs (Qty.) |
Max Network Bandwidth (Mb/s) |
| Standard_M16bs_v4 |
8 |
16,000 |
| Standard_M32bs_v4 |
8 |
16,000 |
| Standard_M48bs_v4 |
8 |
24,000 |
| Standard_M64bs_v4 |
8 |
24,000 |
| Standard_M96bs_1_v4 |
8 |
50,000 |
| Standard_M128bs_1_v4 |
8 |
80,000 |
| Standard_M256bs_2_v4 |
8 |
100,000 |
| Standard_M304bs_4_v4 |
8 |
100,000 |
Networking resources
Table definitions
- Expected network bandwidth is the maximum aggregated bandwidth allocated per VM type across all NICs, for all destinations. For more information, see Virtual Machine network bandwidth.
- Upper limits aren't guaranteed. Limits offer guidance for selecting the right VM type for the intended application. Actual network performance depends on several factors, including network congestion, application loads, and network settings. For information on optimizing network throughput, see Optimize network throughput for Azure virtual machines.
- To achieve the expected network performance on Linux or Windows, you might need to select a specific version or optimize your VM. For more information, see Bandwidth/Throughput testing (NTTTCP).
Accelerator (GPUs, FPGAs, and other accelerators) information for each size.
Note
This series doesn't include any accelerators.
List of all available sizes: Sizes
Pricing Calculator: Pricing Calculator
Information on Disk Types: Disk Types
Next steps
Take advantage of the latest performance and features available for your workloads by changing the size of a virtual machine.
Utilize Microsoft's in-house designed ARM processors with Azure Cobalt VMs.
Learn how to Monitor Azure virtual machines.