question

sakuraime avatar image
0 Votes"
sakuraime asked Cathyji-msft commented

Bytes Sent to Transport/sec vs Bytes Sent to Replica/sec

In Always-on availability Group . what's the difference between Bytes Sent to Transport/sec vs Bytes Sent to Replica/sec

117831-image.png


sql-server-general
image.png (97.6 KiB)
· 1
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

It seems to be a documentation problem here. Where did you find this information?

0 Votes 0 ·
Cathyji-msft avatar image
0 Votes"
Cathyji-msft answered Cathyji-msft commented

Hi @sakuraime,

There is no difference between these two counters.


If the response is helpful, please click "Accept Answer" and upvote it, as this could help other community members looking for similar queries.

· 3
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

ok so why need two ?

let me double check by capturing two counters and compare.

0 Votes 0 ·

they are not the same thanks and please explain

118240-image.png


0 Votes 0 ·
image.png (111.7 KiB)

Hi @sakuraime,

They are same in my environment as below screenshot. According to your screenshot, I found that the trends of the two curves are exactly the same.

119219-screenshot-2021-07-30-141652.jpg

I still do not know the difference between the two counters. I will continue to research for this, if I have some new idea, I will share it for you.


0 Votes 0 ·
ErlandSommarskog avatar image
0 Votes"
ErlandSommarskog answered

As I said earlier, this is appears to be a documentation error. I did some googling, and I guess that you found this on https://docs.microsoft.com/en-us/sql/relational-databases/performance-monitor/sql-server-availability-replica?view=sql-server-ver15.

On that page, scroll to the bottom of the page. There are two buttons for submitting feedback. The one to the right is specific for this page. This button takes you to the GitHub repository for the SQL Server Docs. Here you can file an issue and make the writers aware of that this page has an error. It may take a little while until they have figured out what should be the correct description.

5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.