The fsck(1M) command is checking a file system, and fsck(1M) is now removing directory entries pointing to bad inodes that were discovered in phases 1 and 1b. This phase might ask you to remove files, salvage directories, fix inodes, reallocate blocks, and so on.
If more than a dozen errors occur during this important phase, you might want to restore the file system from backup tapes. Otherwise it is fine to proceed with fsck(1M).
For more information, see the chapter on checking file system integrity in the System Administration Guide, Volume 1.