Adaptec 39160 - SCSI Card Storage Controller U160 160 MBps Guide de l'utilisateur télécharger pdf (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.

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Adaptec 39160 - SCSI Card Storage Controller U160 160 MBps Guide de l'utilisateur Page 12

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