...Cache still enabled, but writes no longer being posted.
Description: Number of cache lines containing dirty data that cannot be flushed (written) to the drives has reached a preset limit. The cache is still enabled, but writes are no longer being posted. This problem usually occurs when a problem with the drive or drives occurs.
Action: Resolve the problem with the drive or drives. The controller can then write the dirty data to the drives. Posted-writes operations are restored.