Mabro1
3 Zinc

Ask the Expert: How to Optimize Your VNX

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https://community.emc.com/message/710869#710869

This Ask the Expert event will cover general guidance and tips/tricks to help you get the most out of your VNX.

The experts will discuss how to leverage key capabilities embedded within the product interface such as:

  • The VNX health check
  • Customer code upgrades
  • The CRU process for drives.

This discussion begins on August 19 and concludes on August 30. Get ready by bookmarking this page or signing up to receive email notifications.

Your Hosts:

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Greg Swain has been an information technology specialist for the last 15 years, before joining EMC in 2004 he worked as a Boston based consultant focusing on backup, disaster recovery strategies and networking. After joining EMC Greg worked as a system’s administrator and integrator specializing in brining recently acquired organization into EMC own information technology infrastructure. The integration process typically required working with competitive technologies managing datacenter build outs and deploying EMC infrastructure including mid-tier storage and archive. Currently Greg is a Systems Engineering Manger based out of Franklin MA.


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Christopher DiMartino is a Systems Engineer for EMC, focused on MidMarket GEO.

Chris’s position at EMC comes after 18+ years working in the IT field in southern New England. He now focuses on designing data center solutions that meet the client’s needs today as well as planning for future growth. Prior to joining EMC, Chris has worked at several Fortune 200 companies, insurance providers and the US Naval War College. With a primary focus on infrastructure security and compliance, Chris has had exposure to many varied environments, from companies with less than 10 employees all the way to redesigning the PCI scanning methodology of the current Fortune 1.


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Nathaniel Fagundo is a Systems Engineer. He was originally hired into EMC as a Technical Support Engineer to support Their CLARiiON array. He then moved to VNX support when the new platform was released. After a few months I was moved up into the ELITE VNX support team to assist in supporting EMC's top 112 customers around the world. He is currently working at EMC as a Associate Systems Engineer or up to recently called an Associate Technical Consultant. Nathaniel focuses on direct and in-direct sales of new and emerging technologies comprised of both proprietary and partnered hardware, software, consulting, and cloud based solutions. He holds EMC Associate Certification in Information Storage Management, a VNX Specialist Certification for Platform Engineers, and a Data-center Virtualization and Cloud Infrastructure Specialist Certification.

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Oliver Ames, an EMC Systems Engineer, came to EMC with over 7 years of IT experience having worked for Florida’s largest private insurance brokerage firm; PC repair, help-desk management, Systems Administration and Backup Administrator for over 20 branch offices and corporate headquarters.

Oliver uses his experience to educate customers on what best practices and approaches can be taken to ensure business can enjoy growth, while at the same time lowering costs to secure and maintain growing data sets.


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Glen Kelley is an EMC Senior Hardware Support Engineer. He has spent the past 10 years working at EMC in Mid-Range array support (CLARiiON and VNX) as a Senior Hardware Support Engineer. Prior to EMC, Glen worked at Digital Equipment Corporation for 10 years and Data General for 17 years.


35 Replies
Mabro1
3 Zinc

Re: Ask the Expert: How to Optimize Your VNX

This discussion is now open for your questions. We look forward to an interesting, fun and informative Ask the Expert event.

0 Kudos
diardobj
1 Nickel

Re: Ask the Expert: How to Optimize Your VNX

I'll start with a quesiton posed by one of my clients recently: "What does the USM Health Check utility evaluate to determine health of the system"?

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kelleg
4 Ruthenium

Re: Ask the Expert: How to Optimize Your VNX

The tool performs the following heath checks:

•Network Connectivity

•Management Service Status

•Storage Processor Status

•Hot Spare Status

•No Disk Faults

•Disk Status

•VNX OE for Block Committed

•Data Mover Status

•No Hardware Component Faults

When the health check completes, you can view all status details in the summary report at the bottom of the dialog box, or the status details of each individual rule by clicking its associated icon.

glen

swaing
1 Copper

Re: Ask the Expert: How to Optimize Your VNX

Glen is spot on.

The health check is typically the first step when trying to optimize a storage or NAS system.  

There has been some confusion about this topic the health check does not capture performance statistics or detail ways to optimize the system.  Often customers are looking for at least some performance information.  If they have VNX Analyzer enabled often the next step is to retrieve analytics from the system.   EMC and our partners can also help interpret those findings.

Greg-

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diardobj
1 Nickel

Re: Ask the Expert: How to Optimize Your VNX

Does network connectivity help to determine impact on Mirror View sessions or other replication features that rely on network infrastructure? If not, what would you suggest as a next step?

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swaing
1 Copper

Re: Ask the Expert: How to Optimize Your VNX

That is a multifaceted question the short answer is; no.   Bandwidth utilization is what's important and that is not avaiable via the health check.

The best practice is to have MirroView on its own SP port.  The health check will only give limited information mainly the port status up or down.  For MirrorView the lower the RPO the more bandwidth you would require, due to the fact that there would be less commonality among the data and less time available to transmit changes.   A shorter RPO for MirrorView does equate to more SAN resource utilization.  

I think the core of your question has to do with determining bandwidth required for a given dataset.  EMC has tools to help you determine what is a practical bandwidth for a particular dataset and RPO.  The sole purpose of the Business Continuity Solution Design tool is to analyze SAN or Host performance data and determine the impact and correct replication technology to use.   Simply put you load the BCSD tool with performance analytics garnered from the host or SAN input some variables and the tools tells you what you need for bandwidth.   EMC and partner engineers have access to the BCSD tool.

EMC and it partners also have services that are specifically targeted at doing full SAN/LAN/WAN analysis, these services are most often targeted at customers looking to deploy replication technologies in remote sites without a strong local or in house IT presence. 

Moderator
Moderator

Re: Ask the Expert: How to Optimize Your VNX

Hi there

This may be very basic question ... Can anybody tell me how to perform health check from USM ?

I only found Diagnostics>Verify Storage System> Storage System Verification wizard ...

Is this it ?

If it is .... seems only get Block side information ... Can USM be able to check VNX file side health check as well ?

thanks !

Aya

0 Kudos

Re: Ask the Expert: How to Optimize Your VNX

Hey there Aya,

You are correct in using the Verify Storage System function of USM to do a health check on the block side. The methods and procedures for running a health check differ for the Block and File operating environments. The following sections explain how to run a health check on a VNX Unified array using the following methods:

  • VNX BLOCK operating environment - Using the Verify Storage System function of USM.
  • VNX FILE operating environment -  Using the VNX nasadmin command line interface and using the Prepare for Installation function in the Unisphere USM System Software dialog.

I hope this helps,

Nathan

kelleg
4 Ruthenium

Re: Re: Ask the Expert: How to Optimize Your VNX

In the most current version of USM, once you've logged into the array or the Control Station (using the IP address for the CS or the SPA/SPB), in the lower right corner under the Tools section, you'll find Health Check, click this to run the check. Most of the checks for for the array, and one check for the Data Movers.

The Verify Storage System check under the Diagnostics section is another check that, depending on the type of issue, is a bit more complete.

USM Versions with Health Check:

OE Release 32

UnisphereServiceManager-Win-32-x86-en_US-1.2.26.1.0068-1

OE Release 33 (the recently released Next Generation VNX) - this is backwards compatible with the older VNX and CLARiiON arrays

UnisphereServiceManager-Win-32-x86-en_US-1.3.0.1.0015-1

glen

BTW: the Health Check is an invaluable tool for quickly determining if there are issues on the array