VASA and VA-AI

by admin February 14, 2012

written by admin February 14, 2012

VASA is an additional set of APIs that complement VA-AI. this post explains it in detail.

from the article:

VASA provides the insight and VAAI enables the off load processing of storage related activities. VASA is focused on providing information and insight into how a storage system is configured, its capabilities, health and status. VAAI is focused on providing off load functionally from VMs to storage systems that support those capabilities.

an overview of storage APIs from vmware can be found here.

vmware vsphere 5.0 storage features in 12 parts (ignore labeling in some URLs which is mixed up):

1. VMFS 5

2. storage vMotion

3. VAAI – vSphere storage APIs for array integration

4. storage DRS – initial placement

5. storage DRS – balance on space usage

6. storage DRS – balance on I/O metrics

7. vmfs 5 and gpt

8. handling all paths down (APD) condition

9. snapshot candidate

10. VASA – vSphere storage APIs storage awareness