Solutions and Services Portfolio
Storage Area Network (SAN) - SAN is highly scalable and can offer high system availability, extensive fault tolerance and low cost of ownership.
Network Attached Storage (NAS) - By consolidating storage, resources are more scalable and manageable and hard disk storage space can be added to a network without shutting down existing severs for maintenance and upgrades.
Direct Attached Storage (DAS) - Is a storage device that connects directly to a single server for storage and retrieval of data and database applications or email.
RANSAN - Solid State SAN - It is a RAM SSD storage, data is not stored on traditional hard disks-- it is stored on DDRRAM memory chips. The result is -- 14 microseconds of latency - 250x faster than RAID.
Routing and Switching Systems
Switching - Switching technology has superseded bridging as the process of forwarding data from one segment of the LAN to other. River Valley offers swithcing systems that work at the following layers. Data Link Layer, Network Layer and Transport Layer.
Routing - Bridging occurs at the OSI Layer 2 (Data Link Layer) and utilizes MAC addresses, whilst routing occurs at the OSI Layer 3 (Networking Layer) and utilizes IP addresses. We are certified and specialize in Design, Configuration and Maintenance of Layer 3 devices from various leading vendors.
Businesses are required to comply with more and more data laws and regulations set by the Government and Industry. There are more than 18 different data compliance acts affecting Global companies making compliance one of the biggest challenges facing IT departments.
Data storage is no longer just a matter of retention for internal use but now regulations stipulate that some data must be kept for certain time periods and in certain cases be available within just 24 hours. Therefore, storage solutions must address how data is kept, protected, shared and retrieved. In addition to adhering to data compliance regulations networked storage enables higher availability, better network performance and increased uptime.
It is necessary to perform a business analysis to highlight compliance commitments relating to each data type. This analysis can be used to assess the best technologies for your compliance requirements. In addition to a storage infrastructure solution it is also imperative to implement effective disaster recovery.
- Storage Area Network (SAN) - is a high-speed sub-network connecting storage devices and servers to provide consolidated storage and storage management. Data is not stored directly on to any of the network's servers, maintaining server power for business applications and releasing network capacity to the end user. SAN is highly scalable and can offer high system availability, extensive fault tolerance and low cost of ownership.
- Network Attached Storage (NAS) - relocates storage from application servers onto its own independent platform. The server still handles the data processing but a NAS device will deliver the data to the user. By consolidating storage, resources are more scalable and manageable and hard disk storage space can be added to a network without shutting down existing severs for maintenance and upgrades.
- Direct Attached Storage (DAS) - as the name suggests, is a storage device that connects directly to a single server for storage and retrieval of data and database applications or email. Performance is not as high as NAS and it requires high capital expenditure.
- Economies of scale - Organisations can manage more data for less money by consolidating data across the network rather than using many distributed devices (as would be the case with DAS)
- Business continuity planning - A common data location allows copies to make quicker, with less disruption and more efficient migration than with disk-to-disk or disk-to-tape methods. Improving business continuity and a providing efficient disaster recovery.
- Improved management - Single point storage allows for easier data management and monitoring.
- Compliancy - Data is stored and made available in compliance with associated laws and legislative guidelines.
Solid State Based Storage Area Networks (RANSAN) -
Solid State Benefits
Conventional storage exists on magnetic platters, where mechanical devices physically "seek" the requested data. This mechanical blundering is the weakest link in the input/output chain. Typical "latency" (the time between data requested and data received) is around 5 or 6 milliseconds for the very best RAID arrays.
On RamSan-300 and RamSan-400 RAM SSD storage, data is not stored on traditional hard disks-- it is stored on DDRRAM memory chips. The result is -- 14 microseconds of latency - 250x faster than RAID. On the RamSan-500 Cached Flash system, latency is less than 200 microseconds or still 20x faster than RAID.
Other companies brag about their latency times, but these numbers are useless unless they result in truly faster data transmission. The truth is in the IOPS-- Input/Output transactions (I/Os) per second. Truly low latency should be backed up by extreme IOPS performance.
A storage device can only handle so many IOPS, regardless of how small or large the I/O is. Conventional hard disks are capable of, at most, 300 IOPS. The best RAID is capable of approximately 10,000 IOPS. The slowest RamSan solid state drive, by comparison, is capable of 100,000 random IOPS. Since there are no moving parts, data performance is high regardless of whether the data is accessed sequential or randomly. This is important, since "real world" use is typically more random than it is sequential. Beware of any storage device that does not display random IOPS. Database applications benefit most frequently from high random IOPS.
The super-fast performance of the RamSan solid state drive enables it to fully saturate today's high-bandwidth interfaces. For this reason, the RamSan is equipped with up to eight Fibre Channel ports and a high speed backplane. This ensures that high-bandwidth applications are provided with as much data as the physical interfaces allow-- up to 3 GB/sec of data from a single storage appliance. These interface ports can provide a single, high bandwidth link to a demanding application, or they can serve separate functions for maximum efficiency. 1, 2, or 4 Gb Fibre Channel interfaces are available as are 4x InfiniBand interfaces, and the RamSan solid state drive is certified as interoperable with a wide variety of Fibre Channel host bus adaptors and InfiniBand host channel adapters from the leaders in the industry. High bandwidth is essential for some applications, including non-linear video editing and video-on-demand.
Lower I/O Wait Time
I/O Wait Time is experienced when processors are literally waiting on storage to process their I/O request. To some degree, I/O wait time occurs in all systems. Typical applications, however, do not thrash hard drives enough for users to notice.
A demanding enterprise application -- OLTP, data warehousing, video-on-demand -- can easily become busy enough that servers are constantly waiting on storage...up to 60% of the time! When servers wait on storage for data, users wait on servers.
The incredibly low latency of the RamSan means that I/O wait time can be completely eliminated! CPUs once underutilized will be used to their best capacity, increasing the performance of the applications they run.
Improved Server Efficiency
When slow, conventional storage holds back the potential of expensive processors and servers, efficiency is reduced and money is wasted. Conversely, introducing a blazing fast RamSan solid state disk fully utilizes those servers, resulting in maximized ROI. If your data only travels as fast as the slowest point in the network, then removing that bottleneck results in efficiency gains throughout the system.
The drive towards server consolidation means squeezing every last drop of performance out of the remaining servers. If a RamSan can improve server efficiency, then that efficiency increase can lead to server consolidation without performance loss! This is especially true in "server-bloated" environments, where the problem of I/O wait time was not solved by adding additional servers or processing power. By consolidating servers and moving the hottest data to a single RamSan, TCO is reduced across the enterprise.
Lower Power Consumption
Starting with the RamSan-500 Cached Flash SSD, enterprises can decrease power consumption and increase performance by replacing Enterprise RAID systems with the RamSan-500.
More Concurrent Users
When a RamSan solid state disk is installed, it typically takes the pressure off of whatever system was being thrashed in its place (a RAID array, server system memory, etc.). Those resources are freed up for other applications and tasks. In the case of query-based applications, this can translate in to more concurrent users receiving their data at higher speeds than ever before. Conventional thinking suggests that adding concurrent users requires more servers. The RamSan allows you to scale concurrent users by improving server efficiency.
Faster Response Times
RamSan solid state disks are famous for consistently decreasing the response times of demanding applications. Without mechanical storage devices to slow down performance, users and applications get data at the speeds they demand. At the core of any enterprise is a critical database. Whether it is queried by employees, customers, or other servers, anyone can benefit from faster response times.
In many environments, particularly OLTP, increased customer satisfaction is the first priority. Eliminating I/O bottlenecks with a RamSan solid state disk can improve the performance of all hardware depending on that data. Whether the application is e-commerce, OLTP, hot files storage, or any other use, higher performance, faster response, and greater transactions means increased satisfaction by users.
Financial, telecom, and e-commerce industries know the value of increased transactions per second. To those industries, every additional transaction that their hardware can carry out directly affects the bottom line. In such a situation, it is easy to see how the RamSan solid state disk quickly pays for itself. This logic, however, can be applied to virtually any mission-critical application that requires a solid state disk to reach its potential. Compare the cost of a RamSan to alternative solutions that increase application performance from 2x to 10x, and the choice becomes easy.