XT8-DKC-F410I-S256

256MB shared memory module that plugs into cache memory card to extend shared memory. This is composed of 128Mbit of DRAM. The shared memory is nonvolatile memory (power backed up by a battery for 7 days). Used to store cache directories and disk control information. Capacity of shared memory varies with the capacity of cache memory mounted and the storage capacity. (SE9900)