Download SuperSpeed SuperCache II & SuperVolume 1.0.16.0 تحميل برنامج

Download SuperSpeed SuperCache II And SuperVolume 1.0.16.0

SuperSpeed SuperCache II And SuperVolume 1.0.16.0




Quote: SuperCache II implements patented block-level caching technology to raise system performance beyond that of the NT file-level cache alone. It breaks the disk I/O bottleneck by using the server's system memory to store the most frequently used data, executing read and write requests from memory rather than from disk. SuperCache II's core component is a storage volume filter driver which resides in the storage stack just above the storage volume class drivers."

How it works
SuperCache II intelligently stores frequently used disk data in system memory. The memory used to store the data is called a cache. SuperCache II intercepts requests for disk data and, when possible, fulfills the request using the cache instead of requesting data from the disk. When data is read from or written to the cache, the performance is similar to a RAM disk – extremely fast.

Unlike our RamDisk or SuperVolume products, some requested data will not always be present in the cache. Although data for all requests come from or go to the cache, some will also involve the disk. Nonetheless, depending upon the size of the cache and the nature of the disk I/O requests, performance accelerations can be significant and often dramatic."

Deferred-writes
When deferred writing is enabled, SuperCache II accelerates disk writes. With deferred writing, write requests are fulfilled immediately by simply writing the data to the cache. Later, SuperCache II writes the data to the hard disk. Deferred writing is also known as lazywriting, since the write data stored in the cache is 'lazily' written to the disk afterward.

The effect of deferred writing is to 'smooth out' I/O activity on the hard drive. Applications and services with large flows of write data will especially benefit from deferred writing.

It is important to note that enabling deferred writing increases the risk of data loss in the event of a system crash or power failure. SuperSpeed Software recommends that you enable the lazy-write feature ONLY on systems equipped with an Uninterruptible Power Supply (UPS).

Why another cache?
Doesn’t Windows already have a cache? The Windows operating system supports a file-system level cache, the NT file-system cache. However, the flow of data at the file-system level and the flow of data at the block (or storage volume) level are not the same. Each level – the file-system level and the block level – represents a different data flow paradigm, or model. Optimization of flows at the file system level does not optimize flows at the block level. SuperCache II enhances disk I/O throughput by optimizing flows at the block-level.

When to use
SuperCache II is an excellent choice for these scenarios:
1. The data files are too large to fit into available physical memory.
2. The data files are located on a disk partition or disk volume that is too large to fit into available physical memory, and cannot be moved to one where they will fit.
3. The data files must not be placed on a volatile disk.

SuperCache II can be used to cache the system drive (e.g. drive C), including the pagefile. It is the appropriate product when the data files of a particular program or service (e.g. database, web server, etc.) must reside on a disk partition or volume that is larger than the size of available physical memory.


SuperVolume
SuperVolume (previously known as SuperSpeed) is a sophisticated yet elegant solution to the disk I/O bottleneck. Employing a patented hybrid cache, it mirrors an entire disk partition or volume in RAM. In essence, a cache is created in RAM which maintains a one-to-one relationship with its associated partition or volume. All data residing in the partition or volume is also present in the cache. The file system, drive letter, and all other attributes of the original partition or volume are preserved.

How does SuperVolume accelerate a program?
If a program needs lots of data (e.g. images for a video game) it's much faster to have it come from RAM than from disk. When running a program with data on a SuperVolume partition or volume, the disk-related delays and ‘hiccups’ normally experienced disappear! The program is no longer hampered by slow disk access, instead it can run smoothly at memory speed.

In addition, when a program needs to save information it will first be saved to RAM. Then, in the background, SuperVolume will save these changes back to the physical disk for safekeeping. Therefore the program's disk I/O problem is greatly reduced, if not eliminated!

Write-through and write-deferred modes
SuperVolume supports write-through and write-deferred modes. In write-through mode, writes are immediately sent to the cache and to the disk. This eliminates the possibility of data loss in SuperVolume due to a system crash or power failure. In write-deferred mode, writes are immediately sent to the cache only, and then to the disk at a later time. This mode of operation results in read- and write-performance similar to that of RamDisk. SuperSpeed Software recommends enabling the write-deferred (or lazy-write) feature ONLY on systems equipped with an Uninterruptible Power Supply (UPS).

A key prerequisite for SuperVolume is to have, or create, a hard drive partition that is small enough to fit into available physical memory. For example, a system with 1 GB of RAM typically has around 700 MB available for SuperVolume. Therefore, a 700 MB disk partition or volume could be mirrored in RAM by SuperVolume. Note: caution should be exercised to leave sufficient memory free for the operating system, programs and services.

In the explanation above we talk about putting data (graphics, video, database etc.) on the SuperVolume partition or volume. Why? Because this data is the most frequently used. If there is enough RAM then entire programs, like action games, can be installed there and accelerated!

Creating the separate disk partition or volume required by SuperVolume may require the use of third-party disk partitioning software such as Partition Magic.