Avago Technologies Syncro CS 9286-8e - Manual (Page 24)

Avago Technologies
- 24 -
Syncro CS 9286-8e Solution User Guide
November 2014 Chapter 3: Creating the Cluster
HA-DAS CacheCade Support
Figure 14 Create Virtual Drive Summary
11. Click Finish to complete the VD creation process.
12. Click OK when the Create Virtual Drive - complete message appears.
3.1.3.1 Unsupported Drives
Drives that are used in the Syncro CS 9286-8e solution must selected from the list of approved drives listed on the LSI
website (see the URL in
Section 1.4, Hardware Compatibility ). If the MegaRAID Storage Manager (MSM) utility finds a
drive that does not meet this requirement, it marks the drive as Unsupported, as shown in the following figure.
Figure 15 Unsupported Drive in MegaRAID Storage Manager
3.2 HA-DAS CacheCade Support
The Syncro CS 9286-8e controller includes support for CacheCade 1.0, a feature that uses SAS SSD devices for read
caching of frequently accessed read data. When a VD is enabled for the CacheCade feature, frequently read data
regions of the VD are copied into the SSD when the CacheCade algorithm determines the region is a good candidate.
When the data region is in the CacheCade SSD volume, the firmware can service related reads from the faster-access
SSD volume instead of the higher-latency VD. The CacheCade feature uses a single SSD to service multiple VDs.