GLYPH<SM590000> Updated the following examples: Example 7-57 on page 162, Example 7-59 on page 163,  Example 7-60 on page 165, Example 7-61 on page 168, Example 7-63 on page 170,  Example 8-7 on page 236, Example 8-8 on page 236, Example 8-9 on page 237,  Example 8-21 on page 249.  GLYPH<SM590000> Added new write failure state, Write Fenced GLYPH<SM590000> Added new pool remove option,  -E  for removing tapes with no file references GLYPH<SM590000> Increased stability and performance GLYPH<SM590000> Improved export/import GLYPH<SM590000> Improved reconcile GLYPH<SM590000> Automated the recover process of write failure tapes GLYPH<SM590000> Added improved method for recovering read failure tapes GLYPH<SM590000> Added performance section GLYPH<SM590000> Renamed “Recovering data from a write-failure tape” to 7.16, “Handling of write-failure  tapes” on page 189 GLYPH<SM590000> Updated the  ltfsee recover  command in 11.1, “Command-line reference” on page 300  GLYPH<SM590000> Added section about recovering data from write failure tapes  GLYPH<SM590000> Added section about recovering data from read failure tapes GLYPH<SM590000> Added section for handling Normal Export errors GLYPH<SM590000> Added “boost-filesystem” to system requirements  GLYPH<SM590000> Added section about memory considerations on the IBM Spectrum Scale file system for  increased performance GLYPH<SM590000> Added new information about how migrations are handled GLYPH<SM590000> Added section about handling read failure tapes GLYPH<SM590000> Added new rule for adding tapes into pools  GLYPH<SM590000> Added table about valid commands on different tape status January 2017, Third Edition Version 1.2.2 New information Changed information August 2016, Second Edition Version 1.2.1 New information This revision reflects the addition, deletion, or modification of new and changed information,  which is summarized below. The following topics are new in Version 1.2.2: The following information was changed from the previous edition: This revision reflects the addition, deletion, or modification of new and changed information,  which is summarized below. What’s New in Version 1.2.1:  Summary of changes  xvii