This parameter only causes an allocation of log files when the logprimary value is exceeded, which most likely can happen during a series of long uncommitted transactions.
该参数只会当超过logprimary值时才会分配日志文件，这种情况最有可能在一系列长时间未提交的事务期间发生。
As we discussed in the previous section, each log file created will have the same allocation of space based upon the logfilsiz parameter.
正如我们在前一节中讨论的，根据logfilsiz参数为所创建的每个日志文件分配相同的空间。
The parameter zoveralloc specifies by how much you want to oversize your file allocation requests.
zoveralloc参数指定希望扩大文件分配请求的程度。
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