có hoạt động theo cách này. Nếu bạn bật trên các phương tiện xác minh, nó chuyển tiếp đến cuối của khối lượng và đọc một hoặc hai tập tin. Nó so sánh các tập tin chống lại những gì họ tin rằng nên được ở đó. Điều này rõ ràng là mức thấp nhất của xác minh. | Example 14-9. Adding the New Logical Logs curtis oninit -s curtis for I in 1 2 3 4 5 6 do onparams -a -d llogdbs done Logical log successfully added. Logical log successfully added. Logical log successfully added. Logical log successfully added. Logical log successfully added. Logical log successfully added. You now must perform a level-0 archive to make these logs available for use. An example level-0 archive is shown in Example 14-10. Example 14-10. A Level-0 Archive curtis ontape -s Please enter the level of archive to be performed 0 1 or 2 0 Please mount tape 1 on informix logical crash and press Return to continue . 100 percent done. Please label this tape as number 1 in the arc tape sequence. This tape contains the following logical logs 35 Program over. As shown in Example 14-11 we now switch logs three times which will cause the current log to be one of the new logs on the separate dbspace. Then we will force a checkpoint and perform a logical log backup. This will free the logs that are on the old dbspace so that we may drop them. Example 14-11. Performing a Log Switch and Starting Continuous Backups curtis onmode -l onmode -l onmode -l curtis onmode -c curtis ontape -c Page 397 Example 14-11. Performing a Log Switch and Starting Continuous Backups continued Performing continuous backup of logical logs. Please mount tape 1 on informix logical and press Return to continue . In another window we run an onstat -l that shows us that the logical log backup is done. We now can stop the ontape -c with a Ctrl-C. We also can drop the original three logical logs. See Example 14-12 for an example of these steps. Example 14-12. Example onstat Output and onparams Command curtis onstat -l output abbreviated address number flags uniqid begin size u a04b424 1 U-B 34 100233 250 a04b440 2 U-B 35 10032d 250 a04b45c 3 U-B 36 100427 250 a04b478 4 U C-L 0 300035 250 a04b494 5 F 0 30012f 250 a04b4b0 6 F 0 300229 250 a04b4cc 7 F 0 300323 250 a04b4e8 8 F 0
