User's Manual
6
Fluid Cache For DAS
Fluid Cache is a server-side caching accelerator that makes high-speed Express Flash (PCIeSSD) 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, H810 and H730P.
• 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
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