Add Metric `Avg ms per disk wait` on dashboard

[imajaydwivedi]

Add Metric Avg ms per disk wait on dashboard

This wait type helps to identify if there is disk latency on server.

[imajaydwivedi]

Metric has been added successfully.

Objects created for this infra -

• Procedure dbo.usp_avg_disk_wait_ms
• Added column avg_disk_wait_ms in dbo.all_server_volatile_info & dbo.all_server_volatile_info_history
• Added column avg_disk_wait_ms in dbo.usp_GetAllServerInfo
• Added column avg_disk_wait_ms in dbo.usp_wrapper_GetAllServerInfo
• Added column avg_disk_wait_ms in dbo.usp_populate__all_server_volatile_info_history
• Added column avg_disk_wait_ms as Avg Disk Wait on Monitoring - Live - All Servers dashboard

[imajaydwivedi]