Raid Profile Usage - Fantom Drives MGD-16FC16A User Manual

6.1.3 RAID Profile Usage

The RAID profile allows you to optimize your RAID system so that it best suites the
application for which it is to be used. The following table shows the RAID profiles that
are available and explains each option:
Profile Description
For general
Workstation
desktop
/ CAD
applications
For file
server and
File Server
network
storage
For video
and creative
Media Server
content
storage
For
Database transaction
processing
For video
Media Server
and creative
content
- No init **
storage
When a RAID is created, the profile determines the default caching parameters (which
can be changed after RAID creation) and the stripe unit size (which cannot be changed
after RAID creation).
The default profile when the system is shipped is 'File Server'.
** A RAID with a profile of 'Media Server - No init' is not initialised and is immediately
available. Small writes will incur a small penalty.
*** measured in sectors
Stripe
Read Write Unit
Cache Cache Size
***
Read &
Read On 128
Ahead
Read &
On 256
Read
Ahead
Read
On 256
Ahead
Read On 64
Read
On 256
Ahead
FIBRE-to-SAS/SATA RAID SUBSYSTEM
Expected Expected
Sequential/
Random Mix Write Mix
70% Sequential 70% Read
30% Random 30% Write
50 % Sequential 70% Read
50% Random 30% Write
90% Sequential 50% Read
10 % Random 50% Write
10 % Sequential 90% Read
90 % Random 10% Write
90% Sequential 50% Read
10 % Random 50% Write
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