Dell PowerVault 221S (SCSI) - Manual (Page 12)

A REFERENCE GUIDE FOR OPTIMIZING DELL™ SCSI SOLUTIONS VER A02
PAGE 12 11/17/2005
that can afford some downtime and rely on backups to restore data, this could
be a solution.
Streaming Media Servers
Streaming media servers are systems that provide web casting, video conferencing,
internet entertainment like TV or radio, and multimedia content oriented services. These
are systems that generally require a balance between storage capacity, availability,
redundancy and performance. Like web servers, they may also be part of a group of
systems that work together to provide content.
• Table 2-15 Database General IO profile
I/O Profile
(Read/Write)
I/O Profile
(Sequential/Random)
Bandwidth IO Size
Latency
Sensitivity
Growth
Rate
Criticality
98/2 Sequential Heavy >64K High High Varies
• Table 2-16: Database sever RAID Guidelines
RAID Level
Application
Concatenated 0 1 10 5 50
Streaming
Media
Recommended Not Recommended Possible
Recommended:
• RAID 5 – Recommended for streaming media servers that require maximum
storage capacity and only base data protection and performance. This would
be recommended RAID configuration for stand alone streaming media servers.
• RAID 50 – Recommended for those solutions that require a balance between
storage capacity and performance. This solution would provide greater
availability and redundancy but less storage capacity.
• RAID 0 – While this solution is not redundant, this may be useful for streaming
media servers that require better performance and are members of a cluster of
servers where availability and redundancy is handled at a higher level.
Possible:
• RAID 1, RAID 10 – Possible solutions in situations which do not require high
storage capacity. In general servers utilized for streaming media require large
amounts of storage capacity for content especially uncompressed video.
Not Recommended:
• Concatenated – This solution is not recommended due to lack of redundancy
and limited performance.
Note: While these configurations are not recommended, they can be configured and
utilized.