Does virtual disk | read_latency correspond to GAVG in ESXtop or a different metric?
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meaning of "VirtualDisk|Read_Latency"
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Missing Counters in vROps
Under virtual disk in vROps I only see read latency (ms) and write latency (ms). I would like to see all the counters that are available in ESXTOP (KAVG, GAVG and DAVG)
Is it possible to enable these extra counters?
Thanks!
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Meaning of "Latest" transformation type in Custom View
I'm using a custom view. I choose for a time period to view some counters on Virtual machines. I choose that i want the time period covered to be the last 90 days. I choose "virtual disk | read_average (KBps)" metric and I choose the "latest" transformation type.
What is this giving me? Is this giving me just the "latest" sample polled right now in real time and nothing prior to that?
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Re: vROps throughput across datacenter
Thanks again. This gets me close but I have one issue. When I do it this way, vROps looks at the time period I select, then it gets the throughput metric for a single VM over that time period (last 30 days). Then it goes to the next VM, and gets the metric for that Vm, and so on for each individual VM. AFter it is done getting the info for each VM, the summary row gives me the total for all the individual VMs.
What I'm trying to do is a bit different.
I'd like to get, for a single point in time, the sum of all the virtual disk | read_average (KBps) for all VMs in the datacenter at once at that point in time. Then I want to look at that value over a period of time and see what the peak value was.
Is this possible with a custom view or do I need a supermetric that combines "virtual disk | read_average (KBps)" for all VMs?
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Performance impacts of Super Metrics
What is the potential performance impact of creating a supermetric for all VMs in a datacenter object (4000 vms total) and applying to that datacenter object? Is this risky in terms of creating performance demand on vROps?
Thanks!
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Re: meaning of "VirtualDisk|Read_Latency"
Hi there,
so the virtual disk Read/Write latency you could double check then with GAVG/cmd, GAVG/rd, GAVG/wr
G = Guest Latencys
if you seeing higher GAVG Values > then you should double check on esxtop where it comes from.
at first you could look at
CMDS/s
MBREAD/s
MBWRTN/s
DAVG/cmd
KAVG/cmd
if you facing high DAVG and KAVG > then possible cause is somewhere on youre StorageDevice and Kernel getting Troubles. Most Cases for high DAVG are Performance Bottlenecks once driving lot of I/Os or MB/s. each Disk is only able to cover an special amount of I/O or MB/s.
Best regards
Max
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vROps permissions
Is it possible to set up full permissions in the product UI of vROps 6.x without giving any permissions in the admin UI? How would I do this?
Thanks
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Re: Missing Counters in vROps
You should have these disk metrics on the host objects in vROps. If you don't see them make sure they are enabled in the policy.
KAVG - Disk | Aggregate of all instances | Kernel Disk Command Latency (ms)
DAVG - Disk | <device> | Physical Device Command Latency (ms)
GAVG - not sure if there is one that maps directly to this, but it is just the sum of KAVG + DAVG
I've asked VMware support and our TAM about this many times. I think they need better documentation for many of the vROps metrics and an easier way to find how metrics in vROps map to counters in esxtop or vCenter.
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Re: Meaning of "Latest" transformation type in Custom View
That's correct. Latest is just giving you the last sample polled. The time period you selected is used for the other types of transformations, like average, max, min, etc.
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Re: Performance impacts of Super Metrics
The performance impact should be negligible if any. We have several super metrics that are calculated over 1000's of objects. I don't know of any hard and fast rules on this, but with enough super metrics you'll eventually impact the performance of analytics.
There are however metrics for monitoring super metrics
In Environment under your vROps cluster select "vRealize Operations Manager Analytics" and look for Overall threshold checking | Super metric computation | Duration | Average(ms) or Maximum(ms). You should be able to see if the time increases significantly after creating your super metric. Our average is typically under 1ms.
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Re: vROps permissions
Only the admin user can login to the admin UI. Full permissions in the product UI doesn't allow users to login to /admin.
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HBA Storage Path metric in vROPs 6.x?
Hi all - I know this question may have already been answered somewhere, but is there a metric to pull all storage paths for hosts and create a report out of that?
Let me know. Thanks guys.
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Re: Missing Counters in vROps
Great info - thanks.
In light of this article:
http://www.vmignite.com/2016/02/vrops-6-how-to-enable-hidden-metrics-and-properties/
Is it possible there are "hidden" metrics that pertain to the "virtual disk" object that are not enabled by default? Ideally, I'd like to see for each virtual machine, what the latency is when it sends commands to storage, and what portion of that latency is in the host, and what portion is below the host. I'd like to see this not just for the entire ESXi host but for each VMs storage traffic individually.
Is it possible this information could be part of a "hidden" metric?
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Re: meaning of "VirtualDisk|Read_Latency"
I would think that "virtual disk | read latency" corresponds more closely to LAT/rd in the virtual disk view "v" in esxtop since vROps has it on VM resources, but that's just a logical guess. GAVG in esxtop is for the host adapter, i.e. vmhba0, vmhba1, etc., and is for both reads and writes. vROps has DAVG and KAVG under the host disk metrics, but I haven't found one that looks like it matches GAVG.
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Authentication Error
I'm not sure how long this has been going on but one of my vRealize Operations Managers is no longer syncing with AD and I cannot authenticate with my AD account. I have an Authentication Source setup and it was working however when I tried to sign in today it told me invalid credentials. I had to use my SSO administrator account to finally get in. My auth source is still setup however when I try to test it I get "ERROR_NULL_RESULT_FROM_SERVER". I have another vRrealize Operations Manager for a different cluster and it's working just fine with the same auth source.
This is my version and build.
Version 6.4.0.4635874
Build 4635874
I have tried to delete the auth source and re-create it but that doesn't work. I have also tried pointing it at my other domain controllers but that gives the same error.
Anyone had this issue or know how to fix it?
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Re: Missing Counters in vROps
There are a lot of metrics disabled by default. You can enable them in your policy, but I don't think these are exactly what you're looking for.
The Virtual Disk | Total latency and Read/Write latency will give you the latency for each VM. The latency at the host level and outside of the host isn't measured at a VM level as far as I know. The kernel average (KAVG) is going to be the same for each VM on the host since they all share the same kernel. Likewise the device average (DAVG) will be the same for each VM sharing storage on that physical device. So I think you have to look at the host level for the latency outside of the VM.
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Re: Authentication Error
I think I have a similar issue. I have not been able to fix mine either. However, error I am getting is incorrect user name/password. I did notice it was also unable to login for Local Users as well.
I did put in a ticket with VMware and engineer felt issue was related to how data was being collected. I had since adjusted and moved most vCenter adapters to the appropriate Remote collectors but issue still persists.
I do have a lot of objects in this vROPs environment which may or may not be related to the issue. What you should try is editing a user's objects permissions under Access Control and let me know if that screen populates quickly or there is a lag.
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Re: Free vROps Management Packs
100% agree that this is annoying. I reached out to the solutions exchange team and they said to check the release notes per management pack to see if it's "free" or not.
Not all of them show this so I've been importing into my lab to see if a license is required or not.
All Blue Medora packs seem to be paid only so far.
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Re: vrealize operations manager refresh data (autoswitch dashboards)
With Standard edition, you will not be able to edit dashboards. However, looking at my environment, the out of the box vSphere dashboards do have widgets refreshing every 300 seconds on those that I checked.
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Can vRealize be used to get insight into NSX Load Balancer?
I'd be interested to see basic load balancer stats - like hit counts for the VIPs and pool members, transaction times,
maybe info on the source of the traffic to a VIP. I've hunted around in vRealize but so far not seeing anything.
Am I just missing it? Or should I use another tool to see these kinds of metrics? Thank you.
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