1. A system for data management in a computing storage environment, comprising: a processor device, operable in the computing storage environment, wherein the processor device: divides a plurality of counters tracking write and discard storage operations through Non Volatile Storage (NVS) space into first, accurate, and second, fuzzy, groups; wherein the first, accurate, group is one of incremented and decremented per each write and discard storage operation, while the second, fuzzy, group is one of incremented and decremented on a more infrequent basis as compared to the first, accurate group; and removes the second group from a critical section under a storage lock, thereby reducing the critical section and improving performance.