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.
Specifications
| 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 | Unlimited |
| 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 utilities to bind, unbind, and provide status |
| Protection modes | Optional partition table obfuscation |
| Power loss protection | Yes |
| System Requirements | |
|---|---|
| ioMemory VSL driver | directCache requires a 2.3.0 version of the ioMemory VSL or later |
| Compatible cache devices | All ioDrive, ioDrive Duo, and ioDrive Octal products are compatible with directCache except ioDrives with a v6 or earlier adapter |
| Operating systems | 64-Bit Microsoft Server 2003/2008/2008 R2/Vista/Win7, RHEL 5/6, SLES 11 |
| Supported backing store types | Disk, disk partition, hardware RAID volume, software RAID volume, iSCSI LUN, Fiber Channel LUN |
