【Teradata Utility】系统工具使用

List two ways in which a system utility can be started.

Explain how to use the following utilities to maintain a Teradata database:

– DBS Control
– Ferret Packdisk
– Ferret Defragment
– Ferret Scandisk
– Checktable
– Table Rebuild
– Recovery Manager
– Showlocks
– UpdateSpace
– Vprocmanager

List the order in which to execute the Checktable and Scandisk utilities.

1.utilities工具启动方式

（1）输入命令行直接启动

tpareset
pdestate
dbscontrol
vprocmanager
schmon
dip

如果提示找不到命令，可输入tdatcmd命令添加命令所在目录到当前环境变量，如下：

tdatcmd  

（2）Supervisor Window启动

cnsterm        ==>Linux(cnsterm 1-6)
cnstool        ==>Windows
Remote Console  ==>ViewPoint

 2.DBS Control工具

（1）查看主要内容

• General
• File System
• Performance
• Checksum
• Compression
• Statistics
• Storage (used if temperature based compression is enabled or if TVS is licensed)

（2）三种启动方式

• Command line：输入tdatcmd后，输入dbscontrol
• Viewpoint Remote Console ：选择DBS Control
• Supervisor Window：输入START DBSCONTROL

（3）显示、帮助和退出

DISPLAY GENERAL | FILESYS | PERFORMANCE | COMPRESSION | …    ==>显示
HELP    GENERAL | FILESYS | PERFORMANCE | COMPRESSION | …    ==>帮助
QUIT     ==>退出

（4）修改方法

display general
modify general  =        ==>Use the modify command to change flag  (Century Break)
write                        ==>Write changes to the GDO

（5）参数信息

（6）开启并使用dbscontrol内部参数

上述描述的均为外部参数，可以使用如下命令开启并查看内部参数：

m systemfe=true
y
d i

参考文档：

Factory15 -55 System Utilities