PLGC: Partial Linked GC for Datacenter

摘要

In datacenters, storage requirements are measured in petabytes. The use of flash memory is imperative to the datacenter. When raw big data access to the datacenter, a random write problem and a memory consumption problem occur. To solve these problems, we suggest a GC algorithm, partial linked garbage collection (PLGC). PLGC organizes a partial linked list based on LBN, when a block needs to do overwrite operation. PLGC deploys DRAM spaces and reduces memory consumption in flash memory.