IBM E16RMLL-I Implementation Guide - Page 238
reduce db, query db, query dbvolume, delete dbvolume, q dbvol
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reduced. You must first define a new volume and extend the database if the number in that column is smaller than the size of the volume you wish to delete. Use the reduce db command to reduce the database size. Once the database is reduced in size, the desired volume can be deleted. Example 5-14 shows the procedure. Example 5-14 Reducing database size tsm: ATLANTIC>query db Available Assigned Maximum Space Capacity Extension (MB) (MB) (MB) 1,040 1,040 0 Maximum Reduction (MB) --------- 1,032 Page Size (bytes) ------4,096 Total Usable Pages ------266,240 Used Pages ----1,996 Pct Util ---0.7 Max. Pct Util ---0.8 tsm: ATLANTIC>reduce db 16 ANR2250I Database assigned capacity has been reduced. tsm: ATLANTIC>query db Available Assigned Maximum Space Capacity Extension (MB) (MB) (MB) 1,040 1,024 16 Maximum Reduction (MB) --------- 1,016 Page Size (bytes) ------4,096 Total Usable Pages ------266,144 Used Pages ----1,992 Pct Util ---0.8 Max. Pct Util ---0.8 We see we have plenty of space for reduction, as the default database volume is only 16 MB in size. We have one other mirrored volume of 1 GB, so there is enough space to reduce the size or the database. The second query db shows that the maximum extension is now 16 MB, since the default volume has not yet been deleted. Use the query dbvolume command to see the full name of the file. You can now delete the default database volume using the delete dbvolume command, as shown in Example 5-15. Example 5-15 Deleting a database volume tsm: ATLANTIC>q dbvol Volume Name Copy (Copy 1) Status /usr/tivoli/tsm- Sync'd /server/bin/db- .dsm Volume Name (Copy 2 Copy Status -----Undefined Volume Name Copy (Copy 3) Status Undef- ined 208 IBM Tivoli Storage Manager Implementation Guide
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