B-series update: B1ls is now available

Posted on Monday, April 1, 2019

We're excited to announce a new B-series VM size, B1ls, which has the smallest memory and lowest cost among Azure VM instances. This offering is in response to customers who were looking for entry-level offerings. B1ls has 512 MiB of memory and 1 vCPU, and it costs only $0.0052 (US East) per hour.

Target workloads

B1ls is best for small web servers, small databases, and development and test environments. It offers a cost-effective way to deploy workloads that don't need the full performance of the CPU continuously and burst in their performance.

Performance

B1ls is available only on Linux for the best customer experience. Windows is not supported because the minimum recommended memory for the Windows OS is larger than what B1ls offers.

Available configurations and regional availability

Size

vCPU

Memory: GiB

Temp storage (SSD) GiB

Base CPU perf of VM

Max CPU perf of VM

Credits banked/hour

Max banked credits

Max data disks

Max cached and temp storage throughput: IOPS/MBps

Max uncached disk throughput: IOPS/MBps

Max NICs

Standard B1ls

1

0.5

4

5%

100%

3

72

2

200/10

160/10

2

It's available in most regions.

Get more information about B1ls on the Burstable VM sizes page.

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