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NetApp Knowledge Base

Are there Performance implications to using Advanced Drive Partitioning (ADP) ?

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clustered-data-ontap-8
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perf
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Applies to

  • Clustered Data ONTAP
  • ONTAP 9

Answer

Yes, due to the following:

  • ADP can have a negative performance impact when used on 7200 RPM Serial ATA (SATA) hard drives.
  • SATA drives have a very limited amount of performance capacity, to begin with, and ADP reduces this even further.
  • SAS drives can also see some latency issues, depending upon the disk I?O being experienced by the system.
  • When performance capacity is exceeded, additional latency usually follows.
  • ADP will elongate the runtime of disk reconstruction times.

Additional Information

Advanced Drive Partitioning was created in an effort to more efficiently use Solid State Drive (SSD) performance capacity, by 'slicing up' SSDs into multiple partitions, which allowed multiple aggregates to leverage the large amount of performance capacity SSD's offer.

REFERENCES:

What is Performance Capacity?

ONTAP 9 Document Center - Identifying remaining Performance Capacity

 

 

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