Physical Storage Elements; Arrays - HP ML110 G1 User Manual

Proliant storage server

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Physical storage elements

The lowest level of storage management occurs at the physical drive level.

Minimally, choosing the best disk carving strategy includes the following

policies:

•

Analyze current corporate and departmental structure.

•

Analyze the current file server structure and environment.

•

Plan properly to ensure the best configuration and use of storage.

• Determine the desired priority of fault tolerance, performance, and

storage capacity.

• Use the determined priority of system characteristics to determine

the optimal striping policy and RAID level.

•

Include the appropriate number of physical drives in the arrays to

create logical storage elements of desired sizes.

With an array controller installed in the system, the capacity of several

physical drives can be logically combined into one or more logical units

called arrays. When this is done, the read/write heads of all the

constituent physical drives are active simultaneously, dramatically

reducing the overall time required for data transfer.

NOTE:

may not be possible or necessary.

Figure 4

improves read/write efficiency

Depending on the storage server model, array configuration

Configuring the physical drives into an array dramatically

Storage Server user guide