Chapter 3 - Understanding Spectra Advanced Bucket Management Concepts
Example Configurations
Single Copy on Nearline Disk
This data policy persists a single copy of each job sent to the system on to nearline disk,
which is provided by 96-bay expansion nodes. Once data is written on nearline disk, it is
removed from the BlackPearl cache if the system detects that more cache space is needed for
incoming data.
Note:
This data policy is automatically created when the system detects a nearline disk
partition.
Figure 27
The Single Copy on Nearline Disk workflow.
The single copy on nearline disk data policy is configured with the following attributes:
Parameter
Value
Description
Storage Domain - Pool First Copy -
Data is written to the primary nearline storage domain.
This domain is created automatically after you create a nearline disk partition.
Days to wait
before verifying
data
null
Data integrity verification is not performed
automatically.
Secure Media
Allocation
cleared
Media allocated to the storage domain may be reused
by another storage domain if all data is deleted.
November 2020
User Guide-BlackPearl Converged Storage System
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