Monitoring and reporting for Veeam Backup & Replication, VMware vSphere and Microsoft Hyper-V
Post Reply
stevehughes
Service Provider
Posts: 46
Liked: 4 times
Joined: Jul 27, 2016 1:39 am
Full Name: Steve Hughes
Contact:

Performance graphs hour/day/week

Post by stevehughes » Aug 14, 2018 5:24 am

I have noticed that the performance graphs show inconsistent results depending on whether I select hourly, daily or weekly.

For instance - viewing the datastore latency for a particular VM for the past hour shows an average of around 1-2msec, with a spike to 40msec at 2:56 pm. If I change to 'past day' the spike drops to 5msec. This throws into doubt the usefulness of the 'past day' graph because I really don't know what it's showing me.

What's the go here?

Thanks,
Steve

Shestakov
Veeam Software
Posts: 6836
Liked: 697 times
Joined: May 21, 2014 11:03 am
Full Name: Nikita Shestakov
Location: Prague
Contact:

Re: Performance graphs hour/day/week

Post by Shestakov » Aug 14, 2018 2:54 pm

Hello Steve,
That's an expected behavior. For past hour graph the values are shown with the best accuracy, i.e. we show performance values for every 20 seconds.
If we switch to past day/week, we cannot show all 20-seconds points, so they are combined to 5-minutes/1-hour points.
Thanks

stevehughes
Service Provider
Posts: 46
Liked: 4 times
Joined: Jul 27, 2016 1:39 am
Full Name: Steve Hughes
Contact:

Re: Performance graphs hour/day/week

Post by stevehughes » Aug 16, 2018 11:18 pm

Thanks for that info.

Is this a limitation just with how many point you can fit on the display, or is it a limitation in the way you store aging points in the database?

I would like to view the performance graphs at fine resolution for earlier times than just the past hour. For example this morning I noted a number of storage latency alerts from during the night, but the ''past day' view doesn't show them because of the averaging involved. I'd like to scroll back in time through the night, displaying in one-hour periods if necessary to pinpoint what was going on at the time. Any way to do this?

Shestakov
Veeam Software
Posts: 6836
Liked: 697 times
Joined: May 21, 2014 11:03 am
Full Name: Nikita Shestakov
Location: Prague
Contact:

Re: Performance graphs hour/day/week

Post by Shestakov » Aug 17, 2018 9:50 am

Is this a limitation just with how many point you can fit on the display, or is it a limitation in the way you store aging points in the database?
Both. You don't want to have 30k 20-sec performance points on a weekly graph and Veeam ONE does aggregation of historical data. It collects 20-second samples from ESXi and shows it during the day or so(depends on the settings), then it aggregates 20-second values to 5-minutes intervals and shows the average value and so on up to 2-hour averages. At the same time Veeam ONE remembers the max. sample values.
I would like to view the performance graphs at fine resolution for earlier times than just the past hour. For example this morning I noted a number of storage latency alerts from during the night, but the ''past day' view doesn't show them because of the averaging involved. I'd like to scroll back in time through the night, displaying in one-hour periods if necessary to pinpoint what was going on at the time. Any way to do this?
You can set custom interval to get the desired data on the graph.

stevehughes
Service Provider
Posts: 46
Liked: 4 times
Joined: Jul 27, 2016 1:39 am
Full Name: Steve Hughes
Contact:

Re: Performance graphs hour/day/week

Post by stevehughes » Aug 21, 2018 2:42 am

I found a previous thread that describes what I'm looking for. https://forums.veeam.com/post232359.htm ... se#p232359

We have a similar sized infrastructure to the one described.

How do I make a change to the settings? Do I need to contact support?

stevehughes
Service Provider
Posts: 46
Liked: 4 times
Joined: Jul 27, 2016 1:39 am
Full Name: Steve Hughes
Contact:

Re: Performance graphs hour/day/week

Post by stevehughes » Aug 21, 2018 6:13 am

Sorry I messed up that link. This is what I meant. You made reference to a global setting that can be changed at the expense of database size.

https://forums.veeam.com/post232359.htm ... se#p232359

Shestakov
Veeam Software
Posts: 6836
Liked: 697 times
Joined: May 21, 2014 11:03 am
Full Name: Nikita Shestakov
Location: Prague
Contact:

Re: Performance graphs hour/day/week

Post by Shestakov » Aug 21, 2018 10:30 am

Yes, it's recommended to change regkeys with the support team assistance.
Thanks!

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest