Fusion-io directCache
directCache places cache software in the server to deliver lower cache latency. With directCache, Fusion-io customers can have Terabytes of cache acceleration at their fingertips to speed performance of any backing store. This add-on module for ioSphere integrates tightly with Fusion’s Virtual Storage Layer, a flash-optimized OS subsystem, to deliver immediate application workload performance improvements.
| Product Features | |
|---|---|
| Product Type | Add-on software module for ioMemory VSL |
| Cache Type | Fully associative cache |
| Cache mode | Write-through |
| Minimum cacheable block size | 512B |
| Max cache instances per host | 64 |
| Additional CPU & RAM overhead | No noticeable increase over the ioMemory VSL requirements |
| Product architecture | Independent Linux kernel module, Windows volume/disk filter driver |
| Management | CLI and ioSphere-based GUI |
| Power loss protection | Yes |
| Connectivity/Power | PCI Express 2.0 x4 |
| System Requirements | |
|---|---|
| ioMemory VSL driver | 3.2.3 |
| Compatible cache devices | All Fusion-io and OEM ioDrive1 and ioDrive2 family devices--ioDrive, ioDrive Duo, and ioDrive Octal products, and mezzanine form factors |
| Operating systems | 64-Bit Microsoft Server 2008/2008 R2, RHEL 5/6, SLES 11 SP1/SP2 |
| Host cluster | MSCS, VCS 5.x and above on RHEL, Linux native cluster |
| Supported backing store types | Disk, disk partition, hardware RAID volume, software RAID volume, iSCSI LUN, Fibre Channel LUN |
