Chapter 7 - Configuring Network Attached Storage
Create a NAS Storage Pool
For this option....
Select Protection
Level
Use the radio buttons to select the protection level for the pool. Only one
option can be selected. Use the Storage Pool Preview information to compare
the fault tolerance and required overhead for each configuration.
None
—The pool is not configured to provide data protection. Any drive
failure results in data loss.
Mirror
—Data is striped across two mirrors. Any detected data corruption is
corrected using checksums. This type of RAID offers the best performance
for small random reads and writes.
Single parity
—Data is striped across multiple single-parity arrays, which can
tolerate one drive failure without data loss. This type of RAID has faster
performance than double- and triple-parity based RAIDs.
Double parity
—Data is striped across multiple double-parity arrays, which
can tolerate two drive failures without data loss. In most cases, double-parity
provides the best balance between data protection, performance, and storage
capacity.
Triple parity
—Data is striped across multiple triple-parity arrays, which can
tolerate three drive failures without data loss. This type of RAID provides the
most data protection.
Select
Optimization
Level
Use the slider to maximize either pool capacity or performance, or to mix the
two options. Greater capacity means more storage space but slower
performance. Higher performance means the pool is faster at reading or
writing data with less overall capacity.
Note:
The Storage Pool Preview pane of the New Pool screen changes as you
move the slider between Capacity and Performance to show the impact your
changes have on the storage pool.
Select Write
Performance
Use the drop-down menu to select the number of drives to use to increase
write performance when the pool is shared using NFS. This feature is only
intended for storage pools with NFS shares and typically has little impact on
CIFS share performance.
4.
Click
Create
. The NAS Pools screen displays. The storage pool is automatically created
and is available for use immediately.
November 2020
User Guide-BlackPearl Converged Storage System
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