HP R4.2 Manual do Utilizador descarregar pdf (Página 442)

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101

A Summary of Commands dbcheck

UCS 1000 R4.2 Administration 585-313-507 Issue 3 April 2000 403

The third usage actually checks database space against a user set “water

marks.” Three different things are checked:

• Free space

• Extents against the user set threshold n (15% default)

• Rollback segment(s) growth against the user set threshold m (20%

default)

When executed, the dbcheck command generates the appropriate warnings

(shown under “Diagnostics” below) if the database falls below n percent free

or if the rollback segment grows to be more than m percent of the total

database size.

The dbcheck command, by default, sends warning messages to the

logger/alerter indicating a threshold has been exceeded (the -i option must

be run first). The -e option disables the entries from going into the log file. The

-s option prints the warning messages to standard output. The -m user option

allows for the messages to be mailed to user. Multiple users can be sent the

mail by separating the user names with a tilde (~). Below are sample outputs.

(Output to error log when less than 13% available space/extents or more than

23% used by rollback)

1 2 ... 437 438 439 440 441 442 443 444 445 446 447 ... 744 745

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HP R4.2 Manual do Utilizador Página 442

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