Nutanix Collector vs Dell RVTools: A Comparative Analysis

In today’s complex IT environments, tools that provide insights into infrastructure performance and utilization are crucial. Nutanix Collector and Dell RVTools are two solutions, each with its unique features and benefits. This blog post will compare these tools based on various factors to help you choose the right one for your needs.

Performance Data Collection

Nutanix Collector

Nutanix Collector offers performance data collection for up to one week. This capability allows administrators to monitor and analyze system performance over a meaningful period, helping to identify trends and potential issues before they become critical. This is also very useful when right-sizing your existing environment.

Dell RVTools

RVTools, on the other hand, does not support performance data collection. This limitation might be a drawback for those who require detailed performance metrics to manage and size their infrastructure effectively.

Multi-Hypervisor Support

Nutanix Collector

Nutanix Collector supports multiple hypervisors, including ESXi, AHV, and Hyper-V. This versatility makes it an excellent choice for heterogeneous environments with different hypervisors.

Dell RVTools

RVTools is limited to ESXi only. While this might be sufficient for VMware-centric environments, it lacks the flexibility needed for mixed-hypervisor setups.

Extended Storage Support for ESXi

Nutanix Collector

Nutanix Collector and RVTools support extended storage options for ESXi environments, including RDM (planned in v5.2), vVOL, and vSAN. This feature is essential for environments leveraging advanced storage technologies.

Dell RVTools

RVTools also supports these extended storage options, providing parity with Nutanix Collector in this aspect.

Support for Capacity Workloads

Nutanix Collector

Nutanix Collector stands out by supporting capacity workloads such as NetApp ONTAP and MSSQL. This feature is particularly beneficial for enterprises that rely on these technologies for their data storage and database needs.

Dell RVTools

RVTools does not offer support for these capacity workloads, which may limit its usefulness in environments where these technologies are prevalent.

Native Cloud Support

Nutanix Collector

One of Nutanix Collector’s significant advantages is its native cloud support, including AWS (180 days of performance data) and Azure (90 days of performance data). This capability is critical for businesses leveraging cloud services and looking to move towards hybrid multi-cloud strategies.

Dell RVTools

RVTools does not provide native cloud support, which could be a considerable drawback for organizations with hybrid or multi-cloud strategies.

Data Visualization

Nutanix Collector

Nutanix Collector includes a portal or cloud version for rich data visualization, offering a comprehensive view of the infrastructure’s health and performance. This feature is crucial for making data-driven decisions and identifying issues quickly.

Dell RVTools

RVTools lacks built-in data visualization capabilities in its free version. While a paid version may offer this feature, it represents an additional cost.

Utilization Metrics and VM Provisioning Status

Nutanix Collector

Nutanix Collector provides utilization metrics at the cluster, host, and VM levels, along with VM provisioning status. This granular level of detail helps administrators optimize resource allocation, manage workloads efficiently, and right-size the environment.

Dell RVTools

RVTools does not offer these detailed utilization metrics or VM provisioning status, potentially limiting its effectiveness in comprehensive resource management and right-sizing the environment.

Networking Topology Support

Nutanix Collector

Nutanix Collector supports standard virtual networking topology, which is essential for understanding and managing network configurations in virtualized environments. Support for distributed virtual networking topology is planned in an upcoming release, version 5.2

Dell RVTools

RVTools supports both standard and distributed virtual networking topology, giving it an edge in environments where distributed networking is utilized.

Masking Sensitive Information

Nutanix Collector

Nutanix Collector includes features for masking sensitive information and enhancing security and compliance, particularly in environments dealing with sensitive or regulated data.

Dell RVTools

RVTools does not offer features for masking sensitive information, which could be a concern for organizations prioritizing data privacy.

Operating System Support

Nutanix Collector

Nutanix Collector supports multiple operating systems, including Windows, Linux, and Mac. This cross-platform compatibility makes it a versatile tool for diverse IT environments.

Dell RVTools

RVTools is limited to Windows only, restricting its use in environments with a mix of operating systems.

Conclusion

Both Nutanix Collector and Dell RVTools offer valuable features for managing and monitoring virtualized environments. However, Nutanix Collector provides a more comprehensive set of capabilities, including multi-hypervisor support, native cloud integration, advanced workload support, and cross-platform compatibility. While Dell RVTools has strengths in networking topology and is suitable for VMware-centric environments, its limitations in performance data collection, workload support, and data security features make Nutanix Collector a more robust and versatile choice for most enterprises.

Choosing the right tool ultimately depends on your specific needs and environment.

Collector 4.4

The latest release of Nutanix Collector 4.4 is now available for download.  

WHAT’S NEW

Nutanix Collector provides you an option to gather data for virtual Microsoft (MS) SQL servers (version 2016 or higher) using Windows Command Line Interface (CLI) mode. You can gather the configuration data of the SQL servers that are helpful in sizing the Nutanix Database Service requirements accurately. Nutanix Collector gathers the below information.

  • DB Servers: Cluster role, Witness, Operating System, Sockets, Processors, CPU & Memory information.
  • SQL Instances: Name of the instance and DB server, SQL version, DB count, collation, authentication mode, concurrent, and active connections.
  • Databases: Name, ID, and size of the database, DB server, active connections, availability group, recovery model, and backup details.
  • Database Files: Name and ID of the database, type & size of the file, filegroup, used and free space, and file growth.
  • Availability Group: Name and status of the availability group, databases, replica, role, availability mode, failover mode, seeding mode, and listener details.

For detailed information, see the Collector User Guide.

RESOLVED ISSUES

  • When gathering the data through vCenter, the NX model names gathered through Direct Media Interface (DMI) are translated to the actual NX model names.
  • For Hyper-V (Remote) mode, Nutanix Collector can gather data via encrypted or unencrypted requests depending on the customer setup.
  • Resolved the security issues around the Mac version of Collector, the Mac version of Collector is back in 4.4 

RESOURCES

Here is a demo of support for MS SQL Servers.

CALL TO ACTION

Simplify your requirement gathering by downloading Collector

Public URL: Collector Download Link for Prospects (no login required)

MyNutanix URL: Collector Download Link for MyNutanix Users 

Report issues in Collector via this Google form

Thank you,

Team Nutanix Collector

Collector 4.3

Nutanix Collector 4.3 is now available for download.  

WHAT’S NEW

  • Support CLI for Collector Windows – You can run Nutanix Collector in the CLI mode on the Windows operating system to initialize data collection from Prism, vCenter, Hyper-V (remote and local), and ONTAP CIFS shares.
  • For v-Center – Collection output includes a new sheet named Datastore that allows you to look at the individual datastore, associated hosts, VMs, and their properties.

RESOLVED ISSUES

  • For vCenter environments, the data collection fails when Collector encounters nested datacenters hierarchy while scanning a list of available clusters.
  • Removed the domain administrator check for single node Hyper-V local cluster collection. Note:  For Hyper-V (remote) cluster with multiple hosts, you must be the domain administrator and for Hyper-V (remote) cluster with a single node, you must be the local administrator.
  • In certain scenarios, collection fails when gathering the VM performance data of a Hyper-V cluster.
  • Collector identifies a Hyper-V cluster as a single node when running on 64-bit Windows operating systems.
  • For ONTAP CIFS share cluster, collection fails when the search path for the CIFS home directory is not configured.

KNOWN ISSUES

  • When you run Collector in the CLI mode on Windows, the CIFS Shares count equal to or greater than 20 is displayed as 21 CIFS Shares.
  • Collector fails to gather the information when there is only one Prism Element cluster under the Prism Central. For the workaround, see the Troubleshooting section of the Collector User Guide.

RESOURCES

CALL TO ACTION

Simplify your requirement gathering by downloading Collector

Public URL: Collector Download Link for Prospects (no login required)

MyNutanix URL: Collector Download Link for MyNutanix Users 

Report issues in Collector via this Google form

Thank you,

Team Nutanix Collector

Collector 4.2

Nutanix Collector 4.2 is now available for download. The release is focused on a major re-architecture of the existing code base that shall enable us to add support for new workloads in the future. Below is a summary of the changes. 

WHAT’S NEW

  • 2x to 3x performance improvement in data collection
  • Improved accuracy of storage metrics when gathering data via Prism
    • Gather storage from all Volume Groups irrespective of VG to VM mapping. For example, VGs associated with Nutanix Files are not mapped to VMs. 
  • Improved user experience for troubleshooting customer issues
    • Support to change log level on the fly to gather additional log files
    • Supported log levels – critical, warning, info, debug

RESOLVED ISSUES

  • Resolved issues around major anti-virus vendors flagged us as Malicious
  • VM level storage metrics handle duplicate vPartition data entries
  • Resolved data collection failures in Hyper-V caused due to unsupported delimiters
  • Populated values for the 95th percentile value of the IOPS, the number of read & write operations under vHosts sheet.

Note: With the new architecture, the size of the Collector bundle has been reduced to half.  

RESOURCES

CALL TO ACTION

Simplify your requirement gathering by downloading Collector

Public URL: Collector Download Link for Prospects (no login required)

MyNutanix URL: Collector Download Link for MyNutanix Users 

Report issues in Collector via this Google form

Thank you,

Team Nutanix Collector

Collector 4.1

Nutanix Collector 4.1 release is focused on the stability of the data collection, enhancements & bug fixes. Below is a summary of the changes. 

ENHANCEMENTS

Following are the feature enhancements made in this release:

  • ONTAP CIFS Shares

Collector can now identify the storage associated with CIFS Share Home Directories

“Search Path” column is added for CIFS shares configured as home directories, this helps in mapping Volume associated with Home Directories

  • Added Support to report Storage associated via Volume Groups

VolumeGroups sheet now reports all the volume groups that are associated with the discovered VMs – 

vDisk sheet now reports the vDisks that are part of Volume Group. Additional columns under vDisk are – Volume Group Name, Volume Group Disk, Volume Group Shared, Disk UUID, Volume Group UUID

vmList sheet now reports if the VM has Volume Groups attached. Additional columns under vmList are – Volume Group Attached, Volume Group Capacity (MiB) & Volume Group Consumed (MiB)

  • Added support to gather multiple NICs associated with a VM via Prism Element

If a VM supports multiple Network Interface Cards (NICs), the Collector output exported as an XLSX shows all the supported NICs in the vNetwork tab.

COLLECTOR PORTAL ENHANCEMENTS

The below enhancements are available in Collector Portal as part of his release

  • Collector Portal now supports a simple 1-click option to export NetApp ONTAP projects to Size Nutanix Files

Export to Sizer is supported for Collections gathered via Collector 4.1 and later versions

Export to XLSX is supported for Collections irrespective of Collector version

  • When exporting data to Sizer, the “Provisioned Capacity” is the default storage selection

Users are free to switch to “Consumed Capacity”

Defaulting to “Provisioned Capacity” is applied for both compute based workloads and Netapp ONTAP capacity workloads

  • Optimized the process of fetching VM information when dealing with a large number (1K+) of VMs
  • Improved the histogram chart under the VMs Summary tab by ignoring the powered OFF VMs when showing the distribution of VMs by CPU utilization. 
  • Collector provides a specific error message and suggests actions when the user is not registered on the Sizer portal and tries to export Collector Project to Sizer. 

RESOLVED ISSUES

The following issues are resolved in this release:

  • Resolved an issue where the Collector Portal was unable to generate an XLSX file when NetApp ONTAP Volume did not report Consumed Capacity & Snapshot Reserved Capacity.
  • Significantly improved the time taken to gather information via Prism when Collector is unable to gather Guest OS information.
  • Resolved an issue with Data Collection when gathering data via Prism due to the failure of Prism APIs. 
  • Resolved the cluster connection issue when trying to gather data via the Prism version AOS 5.15.4
  • Data collection completes successfully when clusters intermittently fail to report performance data.  
  • Resolved an issue in collecting the vNetwork data for AOS 5.20.2.1 (AHV – 20201105.2244) and higher versions.
  • Resolved the data center name identified by the Collector for the Prism Element clusters.

RESOURCES

Short Demo link: Collector ONTAP Export to Sizer

CALL TO ACTION

Simplify your requirement gathering by downloading Collector

Download Collector via Collector Login Page

Public URL: Collector Download Link for Prospects

MyNutanix URL: Collector Download Link for MyNutanix Users 

Report issues in Collector via this Google form

Thank you,

Team Nutanix Collector

Collector 3.5.1

Nutanix Collector 3.5.1 goes beyond compute-focused workloads, Collector has now added support for the first of the many upcoming capacity-focused workloads. Here is a short summary:

WHAT’S NEW

Collector now provides you an option to collect data for NetApp Clustered DATA ONTAP (8.3 or above) File Shares, CIFS. Collector allows you to collect data directly from the native storage boxes. You can gather a valuable set of information that can be extremely helpful in sizing your File Share requirements accurately. 

Cluster details – Capacity, Storage Efficiency, # of CIFS Shares & # of Volumes

Node details – Node Health, Model, Vendor, ONTAP version, CPU & Memory info

Share details – Share Path, Access Control Levels, and Max Connections

Volume details – Capacity, Storage Efficiency, QoS Level, Snapshot & Backup Details

QoS details – Policy Group, Max Throughput & Workload Count

Short Demo link: Nutanix Collector support for ONTAP

ENHANCEMENTS

Guest OS details are now available in the case of AHV if NGT is installed and enabled. The Guest OS details can be seen within the “VM Summary” page and the same can be viewed under the “vInfo” tab of the XLSX file. 

Collector Portal – Invite & Share option allows you to share your Collector projects with users who are not registered on Collector Portal. This allows you to share your project with your peers or subject matter experts for collaboration and discussion.

RESOLVED ISSUES

Resolved inconsistencies around CPU & Memory dials seen in AHV collections.

Resolved issues in vCenter collections – CPU & Memory charts displaying more than 100%

RESOURCES

Release Notes, User Guide & Security Guide

Collector Help Pages

Collector FAQs 

Product Videos

Public URL: Collector Download Link for Prospects

MyNutanix URL: Collector Download Link for MyNutanix Users 

Collector FAQs

This page aims to address most of your queries with regards to Nutanix Collector. While we are happy to engage in insightful conversations over the slack channel, we request you to please go through the FAQs on this page before reaching out to us via slack or email.

How can my prospect or customer access Collector?

Prospects and Customers can access Collector in a few ways:

Download Collector via Collector Login Page as seen in the screenshot below:

Collector Public Download Link – no registration required

Collector Download Link for MyNutanix Users

The last approach via MyNutanix registration would also give our users access to the Collector Portal.

How do we report issues in Collector?

You can report issues in Collector by filling this Google form. The form can also be accessed by customers, prospects, and partners.

Why should my customer or prospect use Collector Portal?

Replicates the exact same view as seen by your prospect or customer

Share and Collaborate with peers, customers/prospects, capacity planning experts for improved sizing.

Collector Portal is enhanced on a regular basis to add more value – for example, VM provisioning status, VM list tab with the consolidated view, etc.

Data gathered by Collector across 200K+ VMs says 90+% of VMs are over-provisioned

How can I view the Collector output generated by my customer or prospect?

Collector contains data gathered from the customer or prospect data centers and hence the data gathered by customer or prospect is not accessible by anyone unless the data is explicitly shared.

How can my customer or prospect share the data gathered by Collector with me?

There are a few ways to request data from your customer or prospect:

  • Request the Collection file (zip file) and create a project in the Collector portal to replicate the exact same view as your customer or prospect. You can also generate an XLSX file once the project is created.
  • If the customer or prospect has already created a project in Collector Portal, you can request them to use the “Share” option to share the project with you. For more details on sharing projects, please refer to the User Guide.
  • Request the XLSX file generated by Collector, the XLSX file can be used to analyze the data and import the data into Sizer but XLSX can’t be used to replicate the visual views in Collector Portal.

How can I create a “Project” in the Collector Portal?

You can create a Project using the Collection zip file. For detailed steps, please refer to “Creating a Project” in the Collector Portal User Guide available here

How can I invite new users to Collector Portal?

We have simplified the process of inviting users to the Collector Portal. If you have an existing project which you want to share, just go ahead and share the project with them. If the user is not registered on Collector Portal, we will identify the same and then invite the user and share the project via 1-click.

If you want to invite users without sharing any projects, please use the “Invite” option present within the top right section under the “Summary” page of Collector. For more details, please refer Collector Portal User Guide available here

Where can I find the documents associated with Collector?

Please refer to this Portal link for User Guide, Release Notes, and Security Guide.

Is there any Collateral that I can share with my prospect or customer to brief them about Collector?

We have a flyer that is currently a work in progress – “Capacity Planning Data Collection in 30 seconds”. We will update this FAQ once the collateral is ready. Draft version available now – Collector in 30 seconds

Does the data gathered by Collector include CVM resources?

In the case of vCenter/ESXi or Hyper-V, the data includes CVM resources. Please ensure to turn off the CVMs before sizing to ignore the resources consumed by CVM.

In the case of Prism/AHV, the data does not include CVM resources as these are not needed for sizing. At the same time, we plan to enhance Prism/AHV to optionally show resources along with CVM.

Sizing FAQs

Can I trace back a solution back to the requirements gathered by the Collector?

Yes, if you happened to use Collector Portal and exported to Sizer. Recently, we have introduced the ability to view all the related sizings associated with the Collector Project. This mapping would be extremely beneficial in case of any customer satisfaction issues where the workload has changed pre and post-deployment.

Why are the Processor selection options disabled when I export the Collector output to Sizer?

Collector automatically considers the CPU based on the data gathered from the existing customer or prospect environment and hence the processor selection options are disabled. In the future, we plan to enhance UI to make this more intuitive.

How can I selectively turn off or on certain VMs before exporting the data to Sizer?

There are a couple of ways in which you can selectively turn off or on certain VMs before sizing via exported XLSX file.

If you using XLSX export in Sizer and want to power OFF a few VMs, you need to make a couple of changes:

a) In the “vInfo” sheet, edit the ‘Power State’ column value from “poweredOn” to “poweredOff”.

b) In the “vCPU” sheet, clear the values of the mentioned columns for the VMs that you desire to turn off – ‘Peak %’, ‘Average %’, ‘Median %’, ‘Custom Percentile %’ and ’95th Percentile % (recommended)’

Save the sheet and import data in Sizer.

Note: If you miss (b) you may see the below error:

Data being imported contains one or more VMs that were powered ON during the collection period and reported CPU utilization. 
We recommend you to size both Powered ON & Powered OFF VMs.

How can I selectively decide to place VMs in different clusters when sizing?

Similar to turning off/on the VMs, you can selectively specify the target cluster before sizing.

If you are using Collector Portal, you can go to the “VM List” tab and edit the ‘Target Cluster’ field before exporting the data to Sizer.

If you using XLSX export, you can edit the ‘Target Cluster’ column under the “vInfo” sheet and save it before importing data in Sizer.

You can also edit multiple VMs in one go via “Bulk Change” option.

Can we export more than one Collector Project to the same Sizer scenario?

Unfortunately, this is not possible via Collector Portal but you can do it directly in Sizer using the Import Workload functionality.

If you have the Collector XLSX file please import the individual project XLSX files in Sizer one by one within the same Sizer scenario.

You can get the XLSX from the Collector portal using the “Export to XLSX” functionality.

Is there any document explaining various options while exporting data to Sizer?

Yes, there is a detailed help page documenting various options available when exporting to Sizer, guidance, and caveats around the same. Please here the same here – Exporting Collector Data to Sizer

How can I view the Sizings created via Collector Portal in Sizer using Salesforce Login?

We plan to merge Sizer & Collector Portal in the future. But for now, there are a couple of workarounds to access the Sizings created via Collector Portal in Sizer when using Salesforce login:

1) If you know the scenario number, just open any scenario and replace the scenario number with the one you want to view.

2) If you don’t remember the scenario number, you the search functionality in Sizer. Search functionality is located on the left of your username (that can be seen at the top left corner).  Navigate to the “Advanced” tab in the search dialog and use “Scenario Owner” with the value ‘Created by me’ and you should be able to view the scenario created via Collector Portal.

CPU FAQs

Are the existing environment CPUs considered during sizing when we export Collector output to Sizer?

Yes, when you either export Collector data to Sizer or import Collector data from Sizer, the input CPUs are considered.

Storage FAQs

Does Collector report raw storage or usable storage?

Collector reports both raw storage and usable storage. At the cluster level, the storage represents raw cluster storage. Usable storage can indirectly be calculated using the vDisk tab of the XLSX export. There are a couple of caveats around the storage metrics, please refer to other questions under this section.

Does the Collector capture snapshot information?

As of today, Collector gathers storage consumed by snapshots when we take the vCenter/ESXi route. But this data is missing in data gathered via Prism/AHV or Hyper-V.  Very soon, we plan to enhance Prism/AHV to gather storage metrics around snapshot.

Does Collector report Datastores, RDM, or iSCSI disks?

Unfortunately, as of today, Collector does not report RDM or iSCSI disks. But we do have this in our roadmap.

Security FAQs

How can I convince my customer or prospect that Collector is safe to the user?

Nutanix does not compromise on the security of our customers, partners, and prospects. We have comprehensive security measures in place and the same is made available in the security guide available here. Additionally, the security guide is bundled along with Nutanix Collector bits.

Is there an option to mask sensitive information gathered by the Collector?

Yes, with the launch of Collector 4.0, users do have an option to mask information that might be considered sensitive. This option is available while exporting the data to .XLSX format. We will soon be enabling masking of data even in the Collection file (.zip file).

Hyper-V FAQs

How can we initiate performance data collection in the case of the Hyper-V cluster?

There is a detailed help page on Collector support for Hyper-V, please refer to Collector 3.3 page

Can we gather data of more than 1 cluster at a time?

At this moment, in the case of Hyper-V, Collector can gather data from only one cluster at a time.

Does the collector support a standalone Windows server? 

Not yet, it is on the roadmap.

AHV FAQs

Why can’t I see the Guest OS details in case of data gathered via Prism/AHV?

For Collector to gather Guest OS details, NGT needs to be installed and enabled on the guest OS. Collector 3.5.1 is enhanced to pick up guest OS details if the pre-requisites are met.

vCenter/ESX FAQs

Can Collector gather data from standalone ESXi hosts that are not managed by vCenter?

As of today, Collector gathers data from ESXi hosts is via vCenter APIs and hence we can’t pull data from a standalone ESXi host.

ONTAP FAQs

How can I export Collector output from the ONTAP system to Sizer?

We are currently working on supporting the export of ONTAP output to Sizer. For now, you will have to manually analyze the Collector output and feed it to Sizer. ETA: mid-Jan 2022

Misc FAQs

How can I identify the Hypervisor in use at the end-user site using Collector output?

The “vDatacenter” sheet within the XLSX can be used to identify the Hypervisor in use. The ‘MOID’ column within the “vDatacenter” maps to the Hypervisor as shown below:

MOID Hypervisor
Prism Element AHV
Prism Central AHV
Hyper-V Hyper-V
Anything starting with “Datacenter” ESXi

In the future, we do plan to add an additional column to call out the Hypervisor in use which would make this information self-explanatory and also display the same information UI.

What is the frequency at which performance data is gathered by Collector?

The granularity of performance data collection differs based on the hypervisor in use.

Performance data on both, ESXi & AHV, are gathered every 30 minutes. Most metrics are gathered over a period of 7 days.

In the case of Hyper-V, the frequency of performance data collection depends on the duration of data collection initiated. The below table provides a granularity of the data collected:

Duration of Performance Collection Frequency of Data Collection Data points over the duration
1 day 5 minutes 288
3 days 10 minutes 432
5 days 20 minutes 360
7 days 30 minutes 336

Does Collector gather IOPS & throughput-related information?

Yes, Collector gathers IOPS at cluster level and the throughput – disk usage and network usage at both cluster level as well as host level. The same can also be viewed in the XLSX export of Collector data. In the case of Collector Portal, the VM List tab in the performance view displays the same as well.

How is the VM Provisioning Status calculated?

The VM Provisioning Status is calculated based on the 95th percentile CPU utilization values. The categorization details can be seen in the tooltip and the same is mentioned below:

Normal: CPU utilization values is between 60% and 80%
Under-provisioned: CPU utilization > 80%
Over-provisioned: CPU utilization < 60%
Unknown: Utilization value is missing

Can I customize the VM Provisioning Status?

Yes, you can customize the VM Provisioning Status criteria using the “Manage” option next to VM Provisioning Status tooltip.

Can I edit the project name in Collector?

Yes, you can edit the project name. Please refer to the “My Projects” section within the Collector Portal User Guide available here

Is there a way to bulk edit the records under the VM List tab?

Collector Portal now allows you to edit multiple VMs in one go via the “Bulk Change” button. Use cases where bulk edits would be of great value:

Sizing a set of VMs in one cluster and the rest in another cluster. For example, all DB VMs “Target Cluster” values can be changed to a new cluster, say DB Cluster instead of default Cluster 1.  The rest of the VMs can be left to default, Cluster 1, or further targeted towards specific clusters before exporting to Sizer.

Edit the resources allocated to the set of VMs. For example, all knowledge workers are not allocated enough vCPUs, increase all of them at once via bulk edit.

Is there a way to export the graphs from the Collector portal?

Unfortunately, not yet but we do plan to export to PDF or PPT in the future.

I am having issues with uploading the collection file to Collector Portal, what could be wrong?

If you happen to see the below error message:

Invalid input file. Collection Zip file is expected. 

One of the possible reasons could be that the original zip file was extracted and zipped once again. Using the original zip file should resolve the issue. If the issue still persists please report the issue.

Where can I find the Collector support matrix?

Please refer to the “Nutanix Collector Compatibility Matrix” section under Collector User Guide available here

Who should I contact in case of any other queries?

Please reach out to us via collector@nutanix.com or reach out to us via slack channel – #collector

Alternatively, our partners, customers, and prospects can also reach out to us via Nutanix Community Page – Sizer Configuration Estimator

Report issues in Nutanix Collector – here

And you can always reach the Product Management @ arun.vijapur@nutanix.com

You have reached the end 🙂 Do let us know if you found this page useful or how we can make this better. Please feel free to share this page with your peers, partners, customers, and even prospects.

Thank you,

Team Nutanix Collector

 

 

Working in Sizer with Collector Data

Once you have gathered the workload requirements using Collector, you can generate the Nutanix solutions that are best suited for your workload needs by either

  1. Export the Collector data to Sizer via the “Export to Sizer” option within the Collector Portal or
  2. Import the Collector data in Sizer via the “Import Workloads” option within the Sizer Scenario

Note: Apart from Nutanix Collector, Sizer supports importing output from RVTools and Nutanix Insights. The concepts and parameters remain the same irrespective of the import source. 

There are various options while feeding the Collector data to Sizer. This help page will describe how and when to use the different available options.

In the following section, we will be exporting the data from the Collector Portal to Sizer. To export the data to Sizer, navigate to the desired Project in the Collector Portal, click Export, and select the Export to Sizer option as shown in Figure 1 below.

Figure 1: Exporting Collector Project to Sizer

On clicking “Export to Sizer” you will be shown a pop-up dialog asking for Sizer scenario details as seen in Figure 2 below.

Figure 2: Specifying Scenario Details

In the first step, you can specify the Scenario Name and Account name. Optionally, you can specify the Opportunity details are well. The default name of the scenario is the same as the Collector Project name.

Note: Account and Opportunity detail fields are limited to Nutanix Employees and not visible to partners. 

In the second step, the user can specify all the “Sizing Preferences” as seen in Figure 3 below

Figure 3: Specifying Sizing Preferences

At a very high level, the sizing preferences are based on the number of VMs and their requirements – the compute, memory & storage.

Now, let’s start with the “VMs” option – Powered ON only vs Both powered ON and powered OFF. Nutanix Collector gathers configuration and performance data of all the VMs managed by the IP address specified while establishing the connection. If there are VMs that you don’t wish to size, you can optionally turn them off using the “VM List” tab before exporting to Sizer.  In most scenarios, we recommend the users to choose the “Powered ON only” option but you do have an option to select “Both powered ON and powered OFF” VMs in case you plan to run all the discovered VMs on the Nutanix solution.

Figure 4: Export VMs – Powered ON only vs Both powered ON and powered OFF

Warning: When the data gathered is that of a VDI workload, we highly recommend our users carefully look at the CPU utilization values of the powered-off VMs under the “VM List” tab. The VMs may be powered off when Collector gathered the data but these VMs may have been running intermittently and might be consuming resources. If you miss out on exporting these VMs, you might end up under-sizing the solution. 

Next, let us look at the “Capacity” option – Consumed vs Provisioned. This option lets the users decide if they would like to size for storage based on the actual consumed storage or the storage that is provisioned for each VM. The selection purely depends on the actual storage utilization value and the future capacity needs.

Figure 5: Export Storage - Consumed vs Provisioned

Figure 5: Export Storage – Consumed vs Provisioned

If the current environment is over-provisioned on storage, we recommend the users go with the “Consumed” option.  Don’t worry about running out of storage if you go by the “Consumed” option, Sizer does take care of it and also ensures the recommended solution is capable of handling node failure.  Alternatively, you can always go with the “Provisioned” storage values if you are sure that the allocated storage is required or you want to take a more conservative approach.

Note: When sizing only powered-ON VMs, do ensure to size the storage of powered-OFF VMs. The VMs are powered OFF but the data of powered OFF VMs persists and needs to be accounted for during sizing. 

Now, the most critical part, sizing based on Configuration vs Performance. This option will decide the compute or cores within the solution. Again the selection of this option depends on the CPU utilization values. When we look at the data collected, we see a lot of existing solutions are oversized on the compute or cores. This is usually due to the bad job done during requirement gathering or a very conservative approach taken to avoid CSAT issues.

Figure 6: CPU Utilization under Cluster Summary

The cluster summary gives an overall CPU utilization of the cluster and the “Provisioning Status” donut under VMs Summary helps to identify the VMs that are over-provisioned or under-provisioned.

Figure 7: Provisioning Status under VMs Summary

The above two charts should give the users a fair idea and help users to decide on which option to go with when it comes to sizing CPU cores or compute. If the CPU utilization value is very low, we recommend going with “Performance” based sizing. When using the performance-based option, we highly recommend using 95th percentile CPU utilization values to ensure the workload demands are met all the time.

Figure 8: Export Workload CPU options – Configuration vs Performance

Warning: Selecting performance based on Median or Average may result in under-sizing the solution.

When using 95th percentile-based CPU utilization values, Sizer does factor in an additional 20% of compute requirements to ensure the workload spikes are met. The end Sizer solution has enough cores within the solution to ensure you are not short on CPU cores and the solution can handle node failures as per desired resiliency levels (that can be tweaked in Sizer).

The next preference is the “Create Workloads by” option – you can either choose Profile or VM-based workloads. Ever since the launch of “Export to Sizer” we supported “Profile” based workloads. This approach would categorize each collector discovered VM under predefined VM buckets in Sizer – XS, S, M, L, XL.

Figure 9: Export Workload – Profile-based vs VMs based

Beginning in 2021, we have started supporting “per VM” based workloads, this results in a much more accurately defined workload feed to Sizer.  We highly recommend the “per VM” based option to our users. This option currently has a limitation and supports only up to 500 VMs. If you are trying to export more than 500 VMs you will have to go with “Profile” based workloads.

Retaining VM to Cluster Mapping is another handy preference – the option is unchecked by default. By default, exporting to Sizer consolidates all the VMs in one cluster (Cluster-1), this is good if the customer wants to consolidate the VMs within one cluster. But if the users want to recreate the same cluster and VM mappings in the Nutanix solution, you can always use “Retain VM to Cluster Mapping” to ensure AS-IS VM to cluster mapping is retained in the Nutanix Sizer solution.

The final option is the  Flash percentage – the Flash percentage option allows the user to control the Flash storage requirements.

Figure 10: Specifying workload Flash Requirement

By default, the storage requirements are split into 90:10, 90% HDD requirements, and 10% flash requirements. Depending on the workload nature, the users can tweak this percentage as desired. If the users prefer an all-flash solution, the slider value can be set to 100%.

Now, we are all set to hit the “Done” button to export to Sizer. On successfully exporting to Sizer, you can see the newly created Scenario URL in the banner as shown in Figure 10 below.

Figure 11: Banner showing Sizer Scenario URL

Successful export will also generate a CollectorToolsSummaryReport.xlsx with all the details of the VM data.

Hopefully, this help page provides you with more clarity on the options to choose when exporting Collector data to Sizer. By the way, you will also see the same options when you are trying to “Import” workloads in Sizer either via Collector or RVTools data.

If you have any queries feel free to reach out to Collector Support via collector@nutanix.com or alternatively you reach the Collector team via the Nutanix Community Page – Sizer Configuration Estimator

For more information please refer to Nutanix Collector User Guide, Security Guide, Release Notes & Nutanix Collector Portal User Guide

For any other queries related to Nutanix Collector, please refer to Collector FAQs