Software Support
6
Fluid Cache For DAS
Fluid Cache is a server-side caching accelerator that makes high-speed Express Flash (PCIe-SSD) a shared, distributed
resource. Fluid Cache enables the caching of active data working sets from storage closer to the compute tier to enable
accelerated response times for latency sensitive customer workloads using Direct Attached Storage (DAS) external
storage architectures.
The Storage Management application facilitates addition of PCIe SSDs to the Fluid Cache pool. The Storage
Management support for Fluid Cache helps in:
• Managing Fluid Cache license.
• Configuring cache pool.
• Enabling cache for virtual disks behind a PERC controller. The supported PERC controllers are H710, H710P and
H810.
• Monitoring cache pool usage and read/write performance of the Fluid Cache disks.
Fluid Cache for DAS technology uses the Express Flash PCIe SSDs in supported systems and provides read and write
flash cache.
Fluid Cache Pool comprises of the set of PCIe SSDs that forms the shared, distributed cache resource.
Fluid Cache Disks is a new logical device created as a result of enabling the Fluid Cache on virtual disk or its partitions.
The new Fluid Cache Disk must be used for all data access following Fluid Cache enablement as opposed to accessing
the Virtual Disk or its partitions directly. The new Fluid Cache Disk /dev/fldcx created as a result of enabling Fluid
Cache on the Virtual disk MUST be used for all data access moving forward. Any additional data access to the
corresponding Virtual Disk /dev/sdx or its partitions being cached may lead to data corruption.
For more information, see the
Fluid Cache For DAS User’s Guide
.
On the left-hand side of the Storage Management page, click Storage → Fluid Cache.
From the Options menu:
Connect Fluid Cache: Click to refresh the Fluid Cache node information for Fluid Cache Disks and License.
The Sub-System Information Fluid Cache page is displayed with the Fluid Cache and cache pool properties.
Fluid Cache Properties
Table 6. Fluid Cache Properties
Properties Description
Status
Displays the status of the Fluid Cache. The possible options are:
• OK
• Non-critical
• Critical
License State
Displays the status of the Fluid Cache license. The possible options are:
• Valid License
47