IBM E16RMLL-I Implementation Guide - Page 503
Reorganizing the database
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server(s). ANR1687I Output for command 'Q DB ' issued against server ATLANTIC follows: Available Space (MB) --------1,024 Assigned Capacity (MB) -------- 1,024 Maximum Extension (MB) --------- 0 Maximum Reduction (MB) --------- 984 Page Size (bytes) ------4,096 Total Used Pct Max. Usable Pages Util Pct Pages Util 262,144 8,515 3.2 3.6 ANR1688I Output for command 'Q DB ' issued against server ATLANTIC completed. ANR1687I Output for command 'Q DB ' issued against server LOCHNESS_SERVER1 follows: Available Space (MB) --------2,024 Assigned Capacity (MB) -------- 2,024 Maximum Extension (MB) --------- 0 Maximum Reduction (MB) --------- 1,516 Page Total Used Pct Max. Size Usable Pages Util Pct (bytes) Pages Util 4,096 518,144 130,250 25.1 25.1 ANR1688I Output for command 'Q DB ' issued against server LOCHNESS_SERVER1 completed. ANR1694I Server ATLANTIC processed command 'Q DB ' and completed successfully. ANR1694I Server LOCHNESS_SERVER1 processed command 'Q DB ' and completed successfully. ANR1697I Command 'Q DB ' processed by 2 server(s): 2 successful, 0 with warnings, and 0 with errors. Server groups make it easy to query multiple servers with a single command. 14.6 Reorganizing the database Over time, database volumes can become fragmented. You can restore the efficiency of the database and improve database performance by unloading and reloading it. The database reload process compresses and reorganizes the database. The procedure includes estimating the reorganization statistics, unloading the database, formatting database and recovery log volumes to prepare for loading, and then loading the database. The server cannot be running during a database unload or load, as the load operations read device information from the device configuration file, not from the server's database. Chapter 14. Advanced operations 473
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