Protect Your Most Critical Asset
Whether you want to cut down on unexpected and expensive downtime, meet data retention compliance regulations or achieve recovery point and time objectives, Agilysys will find a high performance Data Management & Storage solution for you. Your unique environment can be better utilized, and our experts can show you how. Our practices will help your organization manage its data and storage efficiently while adapting to growth.
Our Data Management & Storage offerings include:
Business Continuity & Disaster Recovery Planning: Be prepared for the unforeseen with help from Agilysys. Our solutions can help improve resource allocation and overall operational efficiency, maintain high infrastructure availability and protect your valuable data in the event of an emergency.
Backup, Recovery & Archiving:
Our Backup, Recovery & Archiving solutions will enable you to recover files more quickly and efficiently while enhancing security and compliance accountability. We offer one-stop detailed planning and design, implementation activities and knowledge transfer using a proven best practices approach.
Data Center Optimization:
Whether you want to evade overly-complicated upgrades and high IT support costs or avoid distributed complexities and security risks, a more efficient data center can deliver higher levels of service at lower costs.
Business Intelligence/Data Warehousing :
Using the best technologies from industry leading vendors like Sun Microsystems, SAS and Greenplum, our world class services organization shows you how to leverage enterprise data to maximize value, minimize risk and optimize performance. If your company isn't competing on analytics, now is the time to take a look at how doing so can improve enterprise performance and increase your bottom line.
Storage & Storage Area Network (SAN) Services:
Supporting everything from SAN Design & Implementation activities through documentation and knowledge transfer, Agilysys serves as a single source resource and can meet all your storage needs, ensuring successful and scalable operations support now and in the future
Tiered storage
.Tiered storage is a data storage environment consisting of two or more kinds of storage delineated by differences in at least one of these four attributes: price, performance, capacity and function.
Any significant difference in one or more of the four defining attributes can be sufficient to justify a separate storage tier.
Examples:
Disk and tape: two separate storage tiers identified by differences in all four defining attributes.
Old technology disk and new technology disk: two separate storage tiers identified by differences in one or more of the attributes.
High performing disk storage and less expensive, slower disk of the same capacity and function: two separate tiers.
Identical enterprise class disk configured to utilize different functions such as RAID level or replication: a separate storage tier for each set of unique functions.
Note: Storage Tiers are not delineated by differences in vendor, architecture, or geometry except where those differences result in clear changes to price, performance, capacity and function
Hierarchical storage management (HSM)
.Hierarchical storage management (HSM) is a data storage technique which automatically moves data between high-cost and low-cost storage media. HSM systems exist because high-speed storage devices, such as hard disk drive arrays, are more expensive (per byte stored) than slower devices, such as optical discs and magnetic tape drives. While it would be ideal to have all data available on high-speed devices all the time, this is prohibitively expensive for many organizations. Instead, HSM systems store the bulk of the enterprise's data on slower devices, and then copy data to faster disk drives when needed. In effect, HSM turns the fast disk drives into caches for the slower mass storage devices. The HSM system monitors the way data is used and makes best guesses as to which data can safely be moved to slower devices and which data should stay on the fast devices.
In a typical HSM scenario, data files which are frequently used are stored on disk drives, but are eventually migrated to tape if they are not used for a certain period of time, typically a few months. If a user does reuse a file which is on tape, it is automatically moved back to disk storage. The advantage is that the total amount of stored data can be much larger than the capacity of the disk storage available, but since only rarely-used files are on tape, most users will usually not notice any slowdown.
HSM is sometimes referred to as tiered storage.
HSM (originally DFHSM, now DFSMShsm) was first[citation needed] implemented by IBM on their mainframe computers to reduce the cost of data storage, and to simplify the retrieval of data from slower media. The user would not need to know where the data was stored and how to get it back; the computer would retrieve the data automatically. The only difference to the user was the speed at which data was returned.
Later, IBM ported HSM to its AIX operating system, and then to other Unix-like operating systems such as Solaris, HP-UX and Linux.
HSM was also implemented on the DEC VAX/VMS systems and the Alpha/VMS systems. The first implementation date should be readily determined from the VMS System Implementation Manuals or the VMS Product Description Brochures.
Recently, the development of Serial ATA (SATA) disks has created a significant market for three-stage HSM: files are migrated from high-performance Fibre Channel Storage Area Network devices to somewhat slower but much cheaper SATA disks arrays totalling several terabytes or more, and then eventually from the SATA disks to tape.
The newest development in HSM is with hard disk drives and flash memory, with flash memory being over 30 times faster than disks, but disks being considerably cheaper.
Conceptually, HSM is analogous to the cache found in most computer CPUs, where small amounts of expensive SRAM memory running at very high speeds is used to store frequently used data, but the least recently used data is evicted to the slower but much larger main DRAM memory when new data has to be loaded.
In practice, HSM is typically performed by dedicated software, such as IBM Tivoli Storage Manager, Oracle's SAM-QFS, Quantum, SGI Data Migration Facility (DMF), StorNext, or EMC Legato OTG DiskXtender.
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