This integer holds the low-order 32 bits of a 64-bit counter of read cache misses that triggered a data load from primary storage into the drive cache, paired with the high-order cpqDaLogDrvCacheVolAccelNoOfReadMissDoLoad H value, and returns -1 if not applicable. An admin watches this to see how often the accelerator has to fetch fresh data because it wasn't already cached, indicating cold-data access patterns. For example, a high cpqDaLogDrvCacheVolAccelNoOfReadMissDoLoad relative to read hits suggests the working set is larger than the cache can hold, so admins might consider adding more cache volume capacity.