space usage

DFCommand:Check disk space usage of the file system Commonly used: DF-hi, DF,-ha, DF-th, DF-th-x vfat, Function: You can use this command to obtain the space occupied by the hard disk and the remaining space. Syntax: DF [Option] -A: displays the

Alter index emp_name rebuild online; -- You need to know how to maintain indexes:Monitoring space use of Indexes If key values in an index are inserted, updated, and deleted frequently, the index can lose its acquired space efficiently over time.

Monitor Linux system and process resources using Shell scripts This article mainly introduces how to monitor Linux system and process resources by using Shell scripts. This article describes how to check whether a process exists, check the CPU usage

Shell script for Linux system and process resource monitoring, shelllinux During server O & M, you often need to monitor various Server resources, such as CPU load monitoring, disk usage monitoring, and process count monitoring, to promptly notify

Detailed description of RAID level and implementation instance operations I. Brief History of RAID 1. RAID Origin Berkeley: Berkeley proposed: A case for Redundent Arrays of Inexpensive Disks is RAID (cheap Redundant Array) Today: Redundant Arrays

Blood cases caused by simple passwords for O & M I am working hard to solve the problem. I think of a burst of calls and my colleagues urgently told me that the Forum was very slow. Other technical staff had been tossing for a long time and could

Post: Oracle tablespace and Maintenance Basic Concepts The Oracle database is divided into logical regions called tablespaces-forming the logical structure of the Oracle database. I Oracle databases can have one or more tablespaces, while one

This article mainly introduces how to monitor Linux system and process resources by using Shell scripts. This article describes how to check whether a process exists, check the CPU usage of the Process, check the memory usage of the process, and

A murder caused by a simple passwordTian Yi ( [email protected] )is trying to board bricks, a burst of telephone bells remembered, colleagues emergency informed, forum visits very slow, other technical staff have been tossing half a day to find

From: http://fanqiang.chinaunix.net/a1/b1/20010508/133026.html Function: Checks disk space usage of the file system. You can use this command to obtain the space occupied by the hard disk and the remaining space. Syntax: DF [Option] Note:

This article describes how to query and operate Oracle tablespaces. For more information, see This article describes how to query and operate Oracle tablespaces. For more information, see I. Query 1. query the usage of oracle tablespace Select B.

Shell IntroductionThe Shell language is familiar to anyone who touches LINUX and is a system user interface that provides an interface for users to interact with the kernel. It receives the command entered by the user and feeds it into the kernel to

#!/bin/sh#count memory_used_rate,disk_used_rate # @yuanwb  2015-5  #disk_used_rate #depend  on real storage place the parameter  ' Location '  need to  Alter. location=/dev/sda1disk_used_rate1=$ (df -h | grep  $Location  | awk  ' {print $5} ') free1=

Lab Environment:CentOS Release 6.6 (Final) OneIP Address: 172.16.249.230glances is a Linux, BSD Open Source command line system monitoring tool, which is developed using the Python language to monitor CPU, load, memory, disk I/O, network traffic,

Glances is a Linux, BSD open Source command-line system monitoring tool, which uses the Python language development, uses the Psutil library to collect the system data, can monitor the CPU, the load, the memory, the disk I/O, the network traffic,

1. Database Copy Code code as follows: --Size of all databases EXEC sp_helpdb --Status of all databases Select Name, User_access_desc,--User access mode STATE_DESC,--database state Recovery_model_desc,--Recovery model

? Describe the storage of table row data in a block? Create and manage table spaces? Get tablespace information How table data is stored When you create a table, you also create one that holds its data.segment。 A table space contains a

Function: Checks disk space usage of the file system. You can use this command to obtain the space occupied by the hard disk and the remaining space. Syntax: df [Option] Note: The df command displays the I node and disk block usage of all file

Index fragmentation: Internal fragmentation (or leaf filling rate): reflects the space usage or idle rate of the Data leaf. External fragmentation: Since sqlserver uses eight consecutive pages as a database block (Zone) extent as the read

Today, my colleague asked me a question about SQL Server's internal storage structure, so I wrote this blog and summarized it. The problem is as follows: First, we create two tables. The column length of one table is 4039 bytes, and the length of