File Blocks Not Updated Following Writes to Sparse File Holes (4607142)

Problem Summary: A file's block count is not always consistent across cluster nodes following block-allocating write operations within a sparse file. For a cluster file system layered on UFS (or VxFS 3.4), the block inconsistency across cluster nodes disappears within 30 seconds or so.

Workaround: File metadata operations which update the inode (touch, etc.) should synchronize the st_blocks value so that subsequent metadata operations will ensure consistent st_blocks values.