it_user234747 - PeerSpot reviewer
Practice Manager - Cloud, Automation & DevOps at a tech services company with 501-1,000 employees
Real User
Every VMAX requires valid EMC support, even adding one disk or reconfiguring a Front-End port. You cannot do any of this yourself.

Originally posted at vcdx133.com.

My VCDX design architecture was based upon the EMC Symmetrix VMAX 20K. I spent a lot of time with EMC SMEs learning everything I could about it. The first step was learning the major building blocks of the VMAX and how it all fits together. The examples I provide below are with the vSphere ESXi host being the consumer of VMAX storage services.

Be aware that buying a Symmetrix VMAX is like owning a McLaren F1 race car; consider yourself lucky to drive it at the track since everything else must be performed by McLaren. Every VMAX requires valid EMC support, even adding one disk or reconfiguring a Front-End port from iSCSI to FCoE requires an EMC Engineer to generate a “BIN” file to update the VMAX configuration; you cannot do any of this yourself. Furthermore, EMC support is second to none, EMC engineers will visit your site to replace a disk or component before you are even aware that there is a problem (via ESRS – see below).

The EMC Symmetrix VMAX has the following major components:

  • “UniSphere for VMAX” Management Server provides the GUI to manage the VMAX via Gateway LUNs
  • “EMC Secure Remote Support” (ESRS) is the remote support gateway for EMC products
  • Three models: Symmetrix VMAX 10K, 20K and 40K
  • Flexible configuration – design for Capacity (“Daisy Connect”) or Performance (“Direct Connect”)
  • The Operating System of the Symmetrix VMAX is known as “Enginuity”
  • Two bay types: System Bay and Storage Bay
  • System Bays contain up to 8 Engines (40K supports dual System Bays) with UPS, “Matrix Interface Board Enclosure” (MIBE) and Service Processor with KVM (accessed via RSA token)
  • Each Engine is actually a pair of Directors
  • Each Director has Front-End ports, Back-End ports, CPUs, Global Memory and a Virtual Matrix interface
  • Front-End ports support 4/8/16Gb FC, 1Gb/10Gb iSCSI/Remote Replication, 10GE FCoE and FICON
  • Storage Bays contain Disk Shelves with I/O Modules (IOM) and can scale up to 4 PB (10 Storage Bays)
  • The Disk Shelf IOMs are connected to the System Bay by the “Matrix Interface Board Enclosure” (MIBE). The Directors interconnect via this “Virtual Matrix” as well.
  • Remote replication is achieved with “Symmetrix Remote Data Facility” (SRDF) or RecoverPoint

The diagram below illustrates an EMC Symmetrix VMAX 20K with two Engines connected to vSphere ESXi hosts via Fiber Channel.

The EMC Symmetrix VMAX system has many features that are designed to optimise and enhance storage performance whilst being very efficient with the utilised storage. These main features are:

  • Thin Devices (TDEV) – Virtual volumes that are thin provisioned and then bound to a Thin Pool with striping.
  • FAST-VP – Auto-Tiering policies that can be configured to run 24×7.
  • Cache – Provides fast performance by keeping frequently accessed addresses in memory.
  • Compression – LUN Compression can be enabled Thin Pools.

The physical drives of the VMAX are collected into Disk Groups with the RAID configuration. The Disk Groups are then associated with a Thin Pool. The Thin Pool is the physical manifestation of the storage that is then virtualised through the process of “binding” with each Storage Group.

Each ESXi Host that requires SAN storage must have the following logical configuration. The linchpin of this configuration is the Mask View, which associates the Storage Group to the Initiator Group and the Port Group. The Initiator Group is merely the definition of the SAN address of the host that wants to connect to the VMAX. The Port Group is the collection VMAX Front End ports that connect to the outside world (FC, iSCSI, FCoE, FICON, SRDF). The Storage Group is the collection of thin provisioned virtual volumes (called TDEVs) that appear as LUNs to the host.

Until the TDEVs are associated with a Thin Pool, they have no substance and are merely configuration objects. Once associated with a Thin Pool, the storage is then online.

The Fully Automated Tiering for Virtual Pools (FAST VP) Policy is then applied to the Storage Group and configured to continually run. This optimises the Thin Pool storage by moving storage “hot spots” to faster storage tiers.

The following EMC products complement the Symmetrix VMAX:

  • EMC PowerPath (for OS), PowerPath/VE (for vSphere ESXi) Multi-Pathing Plugin
  • EMC VPLEX for Stretched Metro Clusters
  • EMC VNX VG8 for NAS Gateway services
  • EMC ViPR for Software Defined Storage

The diagram below illustrates an ESXi host with PowerPath/VE configured with the “SymmOpt” LB Policy, “Served” Electronic Licence Management, “Rtools” Virtual Appliance and the “VSI” Plugin for vCenter.

The following sites provide details of the EMC Symmetrix VMAX with VMware vSphere and should be used for additional information:

Disclosure: I am a real user, and this review is based on my own experience and opinions.
PeerSpot user
it_user243753 - PeerSpot reviewer
it_user243753Global Business Alliance Director
Vendor

We have EMC VMAX Secure service credential solution of SymmToken. You can maintain vmax by yourself instead of EMC.

PeerSpot user
Works at a tech services company with 10,001+ employees
Real User
Expensive, but we run a big infrastructure of voip services on it and don’t get any complaints of latency or delays.

What is most valuable?

Virtual Provisioning, Auto provisioning and FAST VP.

How has it helped my organization?

Before VMAX, it was a huge task to provision storage to a host but with VMAX Auto provisioning it has become just a matter of few clicks. The VMAX virtual provisioning feature helps us save cost.

What needs improvement?

1) It is still expensive.

2) Front-end port throughput should be higher than what it is currently.

3) Restriction on storage and system bay ordering/placement should be gone.

For how long have I used the solution?

More than 4 years now.

What was my experience with deployment of the solution?

It is the most stable storage product I have worked with.

What do I think about the stability of the solution?

It was deployed by EMC itself. No issues faced.

What do I think about the scalability of the solution?

We did not encounter any issues as we had planned expansion well before its deployment but in an environment where scalability was not planned before deployment, storage bay placement/ordering could cause some issues. New VMAX model (40K) sort out this issue by allowing 25 meters spanning between system and storage bay.

How are customer service and technical support?

Customer Service:

It is one of the best support I have worked with.

Technical Support:

It is one of the best support I have worked with.

Which solution did I use previously and why did I switch?

No

How was the initial setup?

It was setup by EMC itself but its not a straightforward setup. Loads of planning is required to set it correctly.

What about the implementation team?

Vendor.

What other advice do I have?

If someone is looking for a product that can give the best performance under heavy load then this is the product they must go for. We are running a big infrastructure of voip services on it and we don’t get any complaint of latency of delays from our customers.

Disclosure: My company has a business relationship with this vendor other than being a customer: My company is a partner of the vendor.
PeerSpot user
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it_user814776 - PeerSpot reviewer
Principal Infrastructure Architect
Reseller
A rock solid foundation to deploy applications which cannot incur a disruption of service
Pros and Cons
  • "A rock solid foundation to deploy applications which cannot incur a disruption of service."
  • "Better speed to release new features that have become industry standards. EMC created so many standards in the past. Now, it seems they are playing a me-too game and lagging behind in some areas, specifically data reduction."

What is our primary use case?

Zero downtime and high performance applications. We support customers with applications that cannot incur unplanned outages.

How has it helped my organization?

We have stabilized many environments with VMAX. We have helped people consolidate numerous applications to provide better uptime and performance. 

What is most valuable?

Stability: Every environment struggles with something that can cause a disruption to application uptime. VMAX is a rock solid foundation to deploy applications which cannot incur a disruption of service.

What needs improvement?

Better speed to release new features that have become industry standards. EMC created so many standards in the past. Now, it seems they are playing a me-too game and lagging behind in some areas, specifically data reduction.

For how long have I used the solution?

More than five years.
Disclosure: My company has a business relationship with this vendor other than being a customer: We are a consulting company with resell and delivery capabilities.
PeerSpot user
Head of Microinformatics at a financial services firm with 1,001-5,000 employees
Real User
The all-flash feature is great
Pros and Cons
  • "I like the many new features, especially the all-flash solution."
  • "I would like this solution to integrate the solution that EMC vPlex offers."

What is most valuable?

I like the many new features, especially the all-flash solution. 

What needs improvement?

I would like this solution to integrate the solution that Dell EMC vPlex offers. In addition, I think they should have a better means to test the equipment.

For how long have I used the solution?

Three to five years.

What do I think about the stability of the solution?

We have had no issues with the stability of this solution.

What was our ROI?

There is ROI for this product. It is always something I look at when choosing a solution. 

Which other solutions did I evaluate?

We looked at HP and Hitachi as other potential solutions. We have two Hitachi subsystems and one Dell EMC subsystem right now. 

Disclosure: I am a real user, and this review is based on my own experience and opinions.
PeerSpot user
it_user164970 - PeerSpot reviewer
Manager Storage and Virtualization with 501-1,000 employees
Vendor
It’s a great product, the only draw back is you don’t get multiple point in time copies.

Valuable Features

Ease of use, stability, reliability and ease of troubleshooting.

Room for Improvement

Adding a snapshot function will make this product even better, currently that feature is lacking.

Use of Solution

5-7 years.

Deployment Issues

No issues.

Stability Issues

No issues.

Scalability Issues

Scalability has dependency on WAN link speed.

Customer Service and Technical Support

Customer Service:

Excellent.

Technical Support:

Excellent.

Initial Setup

It was simple.

Implementation Team

This was done through a vendor team. EMC professional services have great level of expertise on this product and its setup.

Other Advice

It’s a great product, the only draw back is you don’t get multiple point in time copies.

Disclosure: I am a real user, and this review is based on my own experience and opinions.
PeerSpot user
PeerSpot user
Engineer at a tech services company with 501-1,000 employees
Consultant
Powerfull High End Storage Array

What is most valuable?

Thin provisionning

FAST

Symmetrix Virtual Matrix which give more performance to the VMAX

How has it helped my organization?

  • Thin provisioning reduces capacity consuming: only the amount of data written to the disk is used, no extra reservation.
  • FAST improves the use of performance disks: hot extents are automatically placed on EFD disks, medium used extents are placed on FC disks and extents which are not used very often are moved to ship disks (SATA)

For how long have I used the solution?

1 year

Which solution did I use previously and why did I switch?

We used to use CLARiiON then VNX arrays. VMAX is more scalable and has better performance (gives more IOPS, more front end ports...)

Disclosure: My company has a business relationship with this vendor other than being a customer: We are an EMC partner
PeerSpot user
it_user2529 - PeerSpot reviewer
Manager of Data Center at a transportation company with 1,001-5,000 employees
Vendor
Resilient, fast, and reliable, but expensive

Valuable Features:

Resilience, speed, flexibility, system reliability, refresh strategy

Room for Improvement:

Cost of the hardware tends to be high, however, you do get what you pay for.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
PeerSpot user
it_user820140 - PeerSpot reviewer
‎Chief Catalyst at ssnc
User
It works with our replication technology, which is native replication technology
Pros and Cons
  • "We have been able to present storage from the VMAX to hosts without any problems."
  • "It works with our replication technology, which is not SRDF, which is native replication technology."
  • "Resilience replication, reporting, and performance need to be improved."

What is our primary use case?

Used for our storage with applications that need storage on the SAN. We also use it with RecoverPoint for replication to another site that also uses VMAX storage. We also use it with RecoverPoint for for replication instead of SRDF.

How has it helped my organization?

Since using the VMAX that we have had in our organization for many years, after moving from CX4 and prior to that EVA, we have been able to present storage from the VMAX to hosts without any problems. It works with our replication technology, which is not SRDF, which is native replication technology. We use RecoverPoint.

What is most valuable?

  • Storage
  • Unisphere
  • RecoverPoint
  • Reporting
  • Creating LUNs
  • Reliability
  • Dependability
  • Resilience

    What needs improvement?

    • Ease of use
    • Reporting
    • Performance management
    • Performance
    • Dependability
    • Resilience replication
    • Power

    For how long have I used the solution?

    More than five years.
    Disclosure: I am a real user, and this review is based on my own experience and opinions.
    PeerSpot user
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