1. User's Guide
  2. Understanding STA Data
  3. Understand How STA Handles Changes to the Tape Environment
  4. How Incomplete Exchanges Affect STA

How Incomplete Exchanges Affect STA

If STA loses connection to a library during in-process exchanges, you may notice incomplete exchanges on the Exchanges Overview screen. When STA reconnects with the library, it processes all new exchanges normally.

A library connection may be dropped when:

  • You manually delete a library connection through the STA user interface.
  • You stop STA to perform server maintenance or an STA upgrade.
  • There is a power or network outage affecting the STA server.

While the connection is down:

  • STA receives no record of exchanges that start and finish completely during the connection downtime. STA does not show these exchanges and does not use them in calculating drive or media health.
  • STA receives only partial information for exchanges that either start or finish while the connection is down and does not have enough information to perform a full analysis so exchange status is set to "Unknown". STA does not use these exchanges in calculating drive or media health.