Virtualization

No advance in information technology in the past six decades has offered a greater range of quantifiable benefits than has virtualization.

Virtualization

Brytech Virturalization

Server virtualization is a virtualization technique that involves partitioning a physical server into a number of small, virtual servers with the help of virtualization software.

BRYTECH has experience with all of the industry leading server virtualization software: VMware, IBM LPARs, HPE vPARs, Citrix XenServer, and Solaris Zones.

BRYTECH has a proven methodology for assessing IT environments. Success is determined on the front end of a virtualization engagement. Each individual workload has to be profiled under nominal, normal and peak loads. The profile includes CPU, memory and I/O characteristics. Workloads are grouped together for optimal utilization of all server resources.

Because workload profiles can change over time, BRYTECH remains engaged with our clients to offer periodic tune ups, reviewing server usage and recommending realignment of virtual servers, where necessary.

Storage virtualization is the pooling of multiple physical storage arrays from SANs and making them appear as a single virtual storage device.

 Virtual Disk

NAS vs. SAN NAS is a file-level data storage device attached to an TCP/IP network, usually Ethernet. It typically uses NFS or CIFS protocols, although other choices like HTTP are available.

SAN is a dedicated high-performance network for consolidated block-level storage. The network interconnects storage devices, switches, and hosts

In-band vs. Out-of-band

In-band, or shared-path, storage virtualization products route data and metadata through the device. They allow files to be migrated in real time and allow aggregation of many NAS devices or SAN arrays into one pool of storage. The in-band method of operation carries the downside of added latency and a potential single point of failure, which would mean deployment of these products in pairs. In-band storage virtualization products include EMC Rainfinity, IBM SAN Volume Controller and NetApp V-series.

Out-of-band, or split-path, storage virtualization products separate data and metadata and offer benefits similar to in-band products. They can also be implemented non-disruptively to a network/fabric and will not block access to files should the device fail. They do, however, use agents, and these have to be managed. Out-of-band storage virtualization products include EMC Invista and LSI Storage Virtualization Manager.

As you can see, there are a number of choices and considerations to be made before embarking on storage virtualization. BRYTECH subject matter experts can help you plot the best course of action for your unique business needs.

Virtual Tape

VTLs are typically used for backup and data archiving purposes. The array of disks is presented to the backup software as tape. Data is written sequentially, just as it would be as if it were being written to rotating tape, but can be written and read more quickly because disk is the underlying media. In addition to providing faster backup and recovery times, VTLs are scalable, can reduce operating costs and are compatible with other storage features such as deduplication.

Virtual SAN

virtual storage area network (VSAN) is a collection of ports from a set of connected Fibre Channel switches, that form a virtual fabric.

A virtual storage area network (VSAN) is a logical partition in a physical storage area network (SAN). VSANs allow traffic to be isolated within specific portions of a storage area network so that if a problem occurs in one logical partition, it can be handled with a minimum of disruption to the rest of the network. The use of multiple, isolated VSANs can also make a storage system easier to configure and scale out. 

VSANs offer the following features:

  • Traffic isolation: Traffic is contained within VSAN boundaries and devices reside only in one VSAN, thus ensuring absolute separation between user groups, if desired.
  • Scalability: VSANs are overlaid on top of a single physical SAN. The ability to create several logical VSAN layers increases the scalability of the SAN.
  • Per-VSAN fabric services: Replication of fabric services on a per-VSAN basis provides increased scalability and availability.
  • Redundancy: Several VSANs created on the same physical SAN ensure redundancy. If one VSAN fails, redundant protection is provided by a configured backup path between the host and the switch.
  • Ease of configuration: Users can be added, moved, or changed between VSANs without changing the physical structure of a SAN. Moving a device from one VSAN to another only requires configuration at the port level, not at a physical level.
  • Shared topology: Multiple VSANs can share the same physical topology.
  • Same FCIDs: The same Fibre Channel IDs (FCIDs) can be assigned to a host in another VSAN, thus increasing VSAN scalability.
  • Required protocols: Every instance of a VSAN runs all required protocols such as FSPF, domain manager, and zoning.
  • Independence: Fabric-related configurations in one VSAN do not affect the associated traffic in another VSAN.
  • Containment: Events causing traffic disruptions in one VSAN are contained within that VSAN, and are not propagated to other VSANs.
  • Isolation: No communication is possible between VSANs.

BRYTECH can assist you in developing and implementing virtual SANs with no minimal downtime typically just minutes.

Hyper-converged infrastructure (HCI) is a software-defined IT infrastructure that virtualizes all of the elements of conventional “hardware-defined” systems.

Hyperconvergence is an IT framework that combines storage, computing and networking into a single system in an effort to reduce data center complexity and increase scalability. Hyperconverged platforms include a hypervisor for virtualized computing, software-defined storage, and virtualized networking, and they typically run on standard, off-the-shelf servers. Multiple nodes can be clustered together to create pools of shared compute and storage resources, designed for convenient consumption.

 

The use of commodity hardware, supported by a single vendor, yields an infrastructure that’s designed to be more flexible and simpler to manage than traditional enterprise storage infrastructure. For IT leaders who are embarking on data center modernization projects, hyperconvergence can provide the agility of public cloud infrastructure without relinquishing control of hardware on their own premises.

BRYTECH assisted early adopters of HCI and now we can help you too.

Virtual desktop infrastructure (VDI) is virtualization technology that hosts a desktop operating system on a centralized server in a data center.

Virtual desktop infrastructure (VDI) offers critical benefits to IT, including improved security and centralized desktop management, but the ability to securely access a remote Windows or Linux desktop isn’t enough in today’s organizations. The demands placed on IT require a more evolved approach. Organizations need to optimize user experiences to increase adoption, maximize capabilities by minimizing the number of consoles to manage, and ensure sensitive data stays safe — even in BYOD programs where employees access apps and data from personal devices.

here are key benefits of VDI, including increased access to your network users’ desktops, improved data security, and less expended effort for troubleshooting. Here’s more about the top ten benefits of this type of infrastructure.

  1. You use a smaller amount of bandwidth. One of the benefits of VDI is that it puts all information that ordinarily would be on a user’s computer on a server in a data center. You can save both time and money by making the same data available to all users on the network
  2. You can reduce IT costs up to 30 percent. You can install updates and patches once rather than many times. You also have only one system to troubleshoot rather than several. This helps your organization by allowing your IT staff to focus on significant issues instead of engaging in redundant work for every computer in the network.
  3. Users can access workstations anywhere. One of the most significant benefits of VDI is users can access their workstations from all types of devices, from smartphones and iPads, to laptops and desktops out of the office. In addition, on all devices, the user interface and layout will be the same. This increases agility and reduces the employee learning curve.
  4. Data is more secure. Data is better protected when stored on the server rather than on individual devices. This helps a company protect its data and reduce the chance of file corruption by viruses.
  5. You can assign information access according to an employee’s security clearance. You can provide users different levels of access depending on their security clearance. This provides agencies with the ability to establish barriers for content and activities.
  6. You can use VDI to access very large files. One of the main benefits of VDI is that all users on a network can access large files like CAD documents and video files. Individual devices would expend unnecessary amount of time and energy accomplishing this on a local area network.
  7. The graphics for VDI are better than before. The image quality for graphics and text is vastly superior to previous years. The user experience for VDI has been greatly improved, and you can add graphics acceleration to further enhance the quality.
  8. You can back up data just once. If you have the right procedures in place, you can back up data without the risk of losing any files. This reduces costs and allows backups to be conducted regularly.
  9. You save power. If you have the right procedures in place, you can back up data without the risk of losing any files. This reduces costs and allows backups to be conducted regularly.
  10. VDI has seen significant advancements in recent years. VDI no longer requires big budgets, time, and dedicated resources. Changes have made it possible for more organizations to spend less time, effort, and money setting up the infrastructure.

BRYTECH consultants and engineers can help you define and deploy a virtual desktop infrastructure tailored to your specific needs.

 

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