Each Drive Enclosure is assigned sequentially to the strings, one string at a time.
The sequence of assigning strings is based on the performance capabilities of the
drives installed in the Drive Enclosures. For optimal performance, the Drive
Enclosures with the highest performance drives are rst assigned to strings and
then continue sequentially until all of the Drive Enclosures are assigned to
strings.
The following table summarizes the sequence of assigning Drive Enclosures to
strings.
Table 32: Sequence summary
Drive Enclosure Type of Drive
Enclosure
Order of string assignments based on
the performance capabilities of the
drives
DE2-24P Drive
Enclosure with seven
or 13 400GB SSDs
Performance SSD First
DE2-24P Drive
Enclosure with seven,
13, or 19 1.6TB SSDs
Capacity SSD Second
DE2-24P Drive
Enclosure with 24
HDDs
Performance HDD Third
DE2-24C Drive
Enclosure with 24
HDDs
Capacity HDD Fourth
Example of String Assignments
Referring to an example of string assignments can help you recognize string
assignments for your Oracle FS System.
Drive Enclosures are distributed to strings based on the Drive Enclosure type.
The following gure shows an example of four strings and the corresponding
Drive Enclosure assignments for the following conguration:
•
Two DE2-24P Drive Enclosures with 400GB SSDs (performance)
•
Four DE2-24P Drive Enclosures with 900GB HDDs (performance)
•
Six DE2-24C Drive Enclosures with 4TB HDDs (capacity)
Cabling Plan
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