2 Local Disk and RAID Configurations
From an application perspective, Simphony does not require any type of Redundant Array of Inexpensive Disks (RAID) configuration. In fact, the application is oblivious to the physical configuration of the disks. However, some form of redundancy such as RAID is strongly recommended for local storage on Database servers.
Depending on the performance and disaster recovery requirements for a customer, there are a wide number of possible hard drive configurations available. Users should consult a current reference, for example https://en.wikipedia.org/wiki/RAID, and their storage manufacturer’s recommendations before selecting a configuration.
RAID may allow for hardware redundancy and performance enhancements depending on what solution is chosen. Some of the solutions are more costly than others. In every situation, it is recommended that the RAID controller have a battery backed read/write cache.
Note:
For high volume deployments, it might be necessary to utilize a storage system or two RAID controllers, so that the loads for transaction databases are being separated from the reporting databases. If magnetic hard drives are used, it is that only SAS type hard disks with 10k or 15k rpm should be used; SATA type hard disks are currently not considered sufficient. Alternatively, some or all of the local storage can be retained on Solid State drives (SSD); these are significantly more expensive, but provide much higher I/O speeds.