The HP P4XX The HP P4XX series of RAID controllers are HP’s first PCIe SAS/SATA Raid controllers, and personally I have found them to work excellently for use in my servers (G5/G6 servers). The cards are upgradable to use a 512MB cache and also have a backup battery for the cache (to prevent data loss in power outage). This battery backup unit is my only issue with these raid controllers… ...

SPI Flash ics SPI Flash chips are a fantastic way to store a medium amount of information for a microcontroller when you dont wish to impliment a whole filesystem layer. This is great for when you do not wish to use a large ram footprint (no large buffer needed!). They can provide relatively high density storage for a low cost, and enable high speed data storage. This page will be updated in future, as my code progresses.. This is mainly just for small notes when working with Flash ICs ...