Configure Write And Read Boost Disks To Improve Performance - NETGEAR ReadyDATA 5200 Software Manual

Vertical Expansion
Replace all disks in the volume with larger-capacity disks of the same physical performance
level (disk type and speed). You can vertically expand volumes with RAID 1, RAID 5, RAID 6,
or RAID 10.
For example, you can expand an existing volume in a RAID 6 set that consists of four 500 GB
SATA 7,200 rpm disks by replacing all four disks with 750 GB SATA 7,200 rpm disks.
Configure Write and Read Boost Disks to Improve
Performance
To enhance the performance of an existing volume and improve I/O operations, you can add
one or more high-performance disks such as SSDs to unload write (log) or read (cache)
operations, or both. You can easily remove write and read disks from a volume. For write and
read operations, you would not need to select disks with very large storage capacities.
You can attach both write and read disks to a volume:
• Write boost. Assign one or more separate write disks to improve the write performance
of the array. NETGEAR recommends that you use SSDs that are optimized for writing.
• Read boost. Assign one or more separate cache disks to accelerate read operations in
the array. NETGEAR recommends that you use SSDs that are optimized for reading.
Note: For more information about performance, see the white paper
Performance Considerations for Configuring the ReadyDATA 5200
that is available from the ReadyDATA website at
www.netgear.com/readydata.
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To attach a write or read boost disk to an existing volume:
1. Select System > Storage.
The Storage screen displays (see the figure in
2. To the left of the graphical enclosure, click the volume that you want to expand.
3. In the enclosure, click the disk or disks that you want to configure as write or read disks for
the volume.
You can select disks with a black color coding only. The selected disk or disks are
highlighted, and to the left of the enclosure, the Attach log and Attach cache buttons
display:
ReadyDATA OS 1.2
Step
Manage Disks and Volumes
32
3).