Spectra Logic BlackPearl, User Manual

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Chapter 4 - Configuring Advanced Bucket Management Create a Storage Domain
8. Using the drop-down menu, select a value for the Default Read Preference . Data is
normally read from the source system whenever possible. This setting determines when
data is read back from the Microsoft Azure target, if needed.
Note: Spectra Logic recommends that Default Read Preference be kept at the default of
Last Resort
.
Name Description
Last Resort The source system only reads data from the target if the
source system cannot read from any of its own data
partitions.
Minimum Latency
The source system reads the data from the data
partition with the least latency no matter whether it is
connected to the source system or the target.
After Online Pool The source system only reads data from the target if the
source system cannot read from an online pool.
After Nearline
Pool
The source system only reads data from the target if the
source system cannot read from a nearline pool.
After Non-
Ejectable Tape The source system only reads data from the target if the
source system cannot read from a non-ejectable tape.
Never Data is never read from the target.
9. Click Create . The new Microsoft Azure target appears on the Replication Targets screen.
C
REATE A
S
TORAGE
D
OMAIN
A storage domain is a named collection of member data partitions and, when applicable,
media type combinations. Storage domains define the possible places where the BlackPearl
Converged Storage System stores data that is sent to it. Data persistence rules and data
policies further define where and for how long to store specific data.
Entire data partition/media type combinations are members of storage domains. When a
bucket requires additional capacity, a single disk partition or tape is allocated out of the
members to fulfill the capacity requirement.
Use the instructions in this section to create a new storage domain.
1. From the menu bar, select Configuration > Advanced Bucket Management > Storage &
Data Policy Management
to display the Advanced Bucket Management screen (see
Figure 30 on page 102 ).
November 2020 User Guide-BlackPearl Converged Storage System
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