Migrate SQL Server to Azure SQL Database using Database Migration Services (DMS)

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The Data Migration Assistant (DMA) helps you upgrade to a modern data platform by detecting compatibility issues that can impact database functionality in your new version of SQL Server or Azure SQL Database. The Data Migration Service (DMA) lets you … Continue reading

Backup VMware Server Workloads to Azure Backup Server

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In my previous article, I explained how to install and configure Azure Backup Server. This article explains how to configure Azure Backup Server to help protect VMware  Server workloads. I am assuming that you already have Azure Backup Server installed. … Continue reading

Azure Backup Server v2

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Azure Backup is used for backups and DR, and it works with managed disks as well as unmanaged disks. You can create a backup job with time-based backups, easy VM restoration, and backup retention policies. The following table is a … Continue reading

Configuring EMC DD Boost with Veeam Availability Suite

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This article provides a tour of the configuration steps required to integrate EMC Data Domain System with Veeam Availability Suite 9 as well as provides benefits of using EMC DD Boost for backup application. Data Domain Boost (DD Boost) software … Continue reading

Dell Compellent: A Poor Man’s SAN

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I have been deploying Storage Area Network for almost ten years in my 18 years Information Technology career. I have deployed various traditional, software defined and converged SANs manufactured by a global vendor like IBM, EMC, NetApp, HP, Dell, etc. … Continue reading

Dell Compellent Storage to be discontinued after Dell-EMC merger

DELL is buying EMC. This is an old news. You already know this. There are many business reasons Dell is buying EMC. EMC is the number one storage vendor and a big cat of NASDAQ. One key business justification is to get into Enterprise market with enterprise class product lines and second big reason is break into cloud market utilising dominant presence of EMC. Have you rationalised your opinion on what Dell storage product line likely to be once merger is complete. There are many argument in for and against of various combination of storage line Dell will come up. Let’s look at current product lines of Dell and EMC.

Dell Current Product Line:

  • Network Attached storage based on Dell 2U rack servers.
  • Direct Attached Storage
  • iSCSI and FCoE SAN solution such as PowerVault MD, EqualLogic, Compellent

EMC Product Line:

  • EMC XtremIO – the XtremIO all-flash array—ideal for virtual desktop infrastructure (VDI), virtual server, and database
  • EMC VMAX enterprise class storage- Mission critical storage for hyper consolidation and delivering IT as a service.
  • EMC VNX/VNXe – hybrid flash storage platform, optimized for virtual applications.

Software Defined Storage

Dell

  • Software defined storage such as Dell XC Series powered by Nutanix

EMC

  • EMC Isilon – High-performance, clustered network-attached storage (NAS) that scales to your performance and capacity requirements.
  • EMC ScaleIO – Hyper-converged solution that uses your existing servers, and turns them into a software defined SAN with massive scalability, 10X better performance and 60% lower cost than traditional storage.
  • EMC Elastic Cloud Storage (ECS) – Cloud-scale, geo-federated namespace, multi-tenant security and in-place analytics ECS is the universal platform
  • EMC ViPR Controller – deliver automation and management insights from your multivendor storage.
  • EMC Service Assurance Suite – Service Assurance Suite delivers service-aware software defined network management that optimizes your physical and virtual networks, increases operational efficiency by ensuring SLA’s, and reduces cost by maximizing resources.
  • EMC ViPR SRM – optimize your multivendor block, file & object storage tiers to application service levels you’ll maximize resources, reduce costs and improve your return on investment.

Other Partnership and Products of EMC

EMC Vblock Systems – VCE is a technology partnership which EMC plays major role to deliver converged cloud solutions for midrange to enterprise client. Converged Infrastructure technology that provide virtualization, server, network, storage and backup, VCE Converged Solutions simplify all aspects of IT.

EMC Hybrid Cloud- Federation Enterprise Hybrid Cloud for delivering IT-as-a-Service. With thousands of engineering hours, the Federation brings together best-in-class components from EMC, VCE, and VMware to create a fully integrated, enterprise-ready solution.

VMware Partnerships-EMC Corp plans to keep its majority stake in VMware Inc. EMC, which owns about 80% of VMware, bought the company in 2004 for $700 million. VMware accounted for about 22 percent of EMC’s revenue of $23.2 billion in 2013. EMC and VMware share a cloud vision. Through joint product development, solutions, and services, EMC is the number one choice for VMware customers for storage, backup, security, and management solutions.

RSA Information Security division- RSA info security offers data protection and identity management.

Pivotal- EMC and VMware partnership to manufacture software and big data solutions.

Virtustream- EMC and VMware joint $1.2B acquisition of this brand to provide public cloud services.

Dell to discontinue Compellent after merger–make sense

There are too many eggs on the busket already. Would Dell continue to sell identical products in different name or stream line all products. Dell is after streamlining all products. It is well known by Dell loyal customer that EqualLogic will disappear from Dell product line at 2018. We learnt that in Dell partner’s conference. Then question will remain what will happen to Compellent? In current market place, VNX directly compete with Dell Compellent. But VNX has more customer base than Compellent. VNX is in market for almost 20 years and still growing fast. Compellent is in new shape and in market with SC series product line. But Compellent has frustrated its customer with poor performance and poor customer support. A very poor explanation and guidelines from Dell presales team on how to align Dell storage with business requirement.

Dell can offer customer will both VNX and Compellent knowing Compellent did not work from the beginning or Dell streamline its product and kill Compellent all together. Then promote VNX as it worked past 20 years and has a proven track record. Killing Compellent will disturb few already unhappy customer who simply wanted cheap SATA disks. But killing VNX will disturb wide range of customers and annoy them once and for all. Consequence of that would be losing customers to HP and NetApp which dell desperately wants to avoid and gain control of storage market. This way Dell-EMC will retain undisputed title of EMC as a number one storage vendor. This make sense for any non IT savvy walking on the street. I am certain and believe that Dell will discontinue Compellent serries all together.  Protecting $67 billion dollar acquisition of EMC is more important than protecting $960 million acquisition of Compellent. It would obviously make sense for Michael Dell to kill Compellent and promote VNX as a sole mid range storage.

References:

Dell Compellent: A Poor Man’s SAN

EMC plans to keep stake in VMware, despite investor pressure: source

EMC-VMware Alliance

EMC Cloud

Dell Product Lines

EMC Product Lines

VCE Converged Systems

Dell buying EMC

Dell-EMC: What Storage Customers Should Do

Gartner’s verdict on mid-range and enterprise class storage arrays

Previously I wrote an article on how to select a SAN based on your requirement. Let’s learn what Gartner’s verdict on Storage. Gartner scores storage arrays in mid-range and enterprise class storage. Here are details of Gartner score.

Mid-Range Storage

Mid-range storage arrays are scored on manageability, Reliability and Availability (RAS), performance, snapshot and replication, scalability, the ecosystem, multi-tenancy and security, and storage efficiency.

mid1

Figure: Product Rating

mid2

Figure: Storage Capabilities

mid3

Figure: Product Capabilities

mid4

Figure: Total Score

Enterprise Class Storage

Enterprise class storage is scored on performance, reliability, scalability, serviceability, manageability, RAS, snapshot and replication, ecosystem, multi-tenancy, security, and storage efficiency. Vendor reputation are more important in this criteria. Product types are clustered, scale-out, scale-up, high-end (monolithic) arrays and federated architectures. EMC, Hitachi, HP, Huawei, Fujitsu, DDN, and Oracle arrays can all cluster across more than 2 controllers. These vendors are providing functionality, performance, RAS and scalability to be considered in this class.

ENT1

Figure: Product Ratings (Source: Gartner)

Where does Dell Compellent Stand?

There are known disadvantages in Dell Compellent storage array, users with more than two nodes must carefully plan firmware upgrades during a time of low I/O activity or during periods of planned downtime. Even though Dell Compellent advertised as flash cached, Read SSD and Write SSD with storage tiering, snapshot. In realty Dell Compellent does its own thing in background which most customer isn’t aware of. Dell Compellent run RAID scrub every day whether you like it or not which generate huge IOPS in all tiered arrays which are both SSD and SATA disks. You will experience poor IO performance during RAID scrub. When Write SSD is full Compellent controller automatically trigger an on demand storage tiering during business hour and forcing data to be written permanently in tier 3 disks which will literally kill virtualization, VDI and file systems. Storage tiering and RAID scrub will send storage latency off the roof. If you are big virtualization and VDI shop than you are left with no option but to experience this poor performance and let RAID scrub and tiering finish at snail pace. If you have terabytes of data to be backed up every night you will experience extended backup window, un-achievable RPO and RTO regardless of change block tracking (CBT) enabled in backup products.

If you are one of Compellent customer wondering why Garner didn’t include Dell Compellent in Enterprise class. Now you know why Dell Compellent is excluded in enterprise class matrix as Dell Compellent doesn’t fit into the functionality and capability requirement to be considered as enterprise class. There is another factor that may worry existing Dell EqualLogic customer as there is no direct migration path and upgrade path have been communicated with on premises storage customers once OEM relationship between Dell and EMC ends. Dell pro-support and partner channel confirms that Dell will no longer sell SAS drive which means IO intense array will lose storage performance. These situations put users of co-branded Dell:EMC CX systems in the difficult position of having to choose between changing changing storage system technologies or changing storage vendor all together.