Product specifications

Infortrend
2-2
2. You can select the stripe size of each array (logical drive) during
the initial configuration. However, changing stripe size is only
recommended for experienced engineers who have tested the
effects of tuning stripe sizes for different applications.
3. The array stripe size can only be changed during the initial
configuration process.
4. Once the controller optimization mode is applied, access to
different logical drives in a RAID system will follow the same
optimized pattern.
Database and Transaction-based Applications:
These kinds of applications usually include SQL server, Oracle
server, Informix, or other database services. These applications
keep the size of each transaction down to the minimum, so that
I/Os can be rapidly processed. Due to their transaction-based
nature, these applications do not read or write a bunch of data in
sequential order - access to data occurs randomly. The transaction
size usually ranges from 2K to 4K. Transaction performance is
measured in “I/Os per second” or “IOPS.”
Video Recording/Playback and Imaging Applications:
These kinds of applications usually includes video playback, video
post-production editing, or other similar applications. These
applications have the tendency to read or write large files from and
into storage in sequential order. The size of each I/O can be 128K,
256K, 512K, or up to 1MB. The efficiency of these applications is
measured in “MB/sec.”
When an array works with applications such as video or image
oriented applications, the application reads/writes from the drive
as large-block, sequential threads instead of small and randomly
accessed files.
The controller optimization modes have read-ahead buffer and
other R/W characteristics tuned to obtain the best performance for
these two major application categories.