redundant pdu

Tags: restart create hard disk tail SHA support No disk array UIDI. LVM vs. RAID features LVM RAID LVM for dynamic capacity expansion RAID supports dynamic capacity expansion LVM does not support disk acceleration RAID supports disk acceleration LVM does not support redundancy (data backup) RAID Support Redundancy Second, RAID (redundant array of disks)

1. Remove the extra self-compiled kernelEach time the Debian release kernel updates, there are always some kernel options that do not match their own hardware, to compile the kernel themselves. The extra kernel takes up extra hard disk space. I tried to cause the kernel to fail because the/boot partition is full.In order to free up limited resources, it is necessary to remove the redundant kernel.See that uninstalling your own compiled kernel found a

Step 1: Find the version number of the kernel file that is currently in use #uname-RStep 2: List all the kernel files, using RPM or Dpkg (Linux-based systems)Command #rpm-Q kernel or $dpkg--list ' linux-image* 'Step 3: Delete all old kernel files, be careful not to delete the kernel files that are running on the current system, and must be administrator rights to delete1. Rhel series Use this command to delete: #rpm-E kernel-2.6.35.6-45.fc14.i6862, under the Debian system use this command t

A computer installed the same Win7 system in C and F respectively, when you format the F disk, you will still start with two startup options in the Startup menu, although the format of the F disk, that is, the system in the F disk does not exist, but does not modify the boot menu file located in C disk, It still retains the boot information when the dual system, the solution to this problem is to manually remove the redundant startup options, specific

Many users of the Win7 flagship version of the operating speed is very important, with the use of more and more long, many users will find their own Win7 flagship version of the run slow, now let the small series to introduce the Win7 flagship version of the optimization strategy: Uninstall redundant language packs. Step one: We first need to know that in our Win7 64-bit flagship, there are language packs from all over the world, but users use only o

Win7 system how to remove redundant files in C disk First, we first turn off the Win7 system sleep function, can release up to 3G more space oh. "Run as Administrator, all programs → attachments → command Prompt", right-click to select "Run as Administrator", and manually enter "Powercfg-h off" to turn off the Win7 system hibernate function by entering the command prompt. Second, turn off system protection Computer right-key properties-Advanced

First, remove the redundant boot menu on the system configuration First click on "Start-run", enter the "msconfig" command on the Run input box, run the command to open the System Configuration window, switch to "start" and remove these unwanted startup menu items. Ii. Execute bcdedit command in cmd Here to teach you to delete through the Win7 menu management commands, just enter "CMD" on the Run input box, open the Command Prompt window, an

The longer the system uses, the more system garbage will be more and more, and the installation of a large number of software will make your right mouse menu become unusually bloated, often encounter to the right menu a lot of, can not find the options they need. In order to speed up our efficiency, it is necessary for us to clean up the menu of the right button of the system. The right mouse button redundant menu cleanup method is as follows: The fi

Here's how to fix it 1. Create a new class directly, inherit TabControl, and then override DisplayRectangle method: Copy Code code as follows: /// ///Solution TabControl redundant margin problem /// public class Fulltabcontrol:tabcontrol { public override Rectangle DisplayRectangle { get { Rectangle rect = base. DisplayRectangle; Return to New Rectangle (rect. Left-4, Rect. Top-4, Rect. Width + 8, rect. Height + 7); } } }

Now for the sake of computer security, many computers have set up the account and password, want to log into the computer must be entered into the account, now a problem is a computer set up multiple account login, each time you turn on the computer to find their own account, This is a lot of account with the computer is a very troublesome thing, so the best solution is to delete some accounts in a timely manner, we can quickly log into the computer when we need. The following small series to te

The example in this article describes the method of removing the last redundant comma when the Java concatenation string is used. Share to everyone for your reference. The specific analysis is as follows: Let's look at the following code: for (int t = 0; t The above code, the concatenation of the string will be more than one "," such as: "STR1,STR2,STR3," to remove the comma after STR3, you can use the following methods: Membern

Divide the list by blocksize size, the last redundant single copy of public static

implements the consistency of method definitions and invocations. You can define a method that has the same number of parameters as the call. When there is an error in the number of arguments passed by the call method, the error message notifies method that the number of actual arguments should be included, not one more. Explicit vs. redundancy There is a difference between making something clear and becoming redundant before I hear it again "better

(' redhat12345 '); Query OK, 1 row affected (0.08 sec) Rows matched:1 changed:1 warnings:0mariadb [mysql]> flush privileges; Query OK, 0 rows affected (0.03 sec) [[email protected] ~]# mysql-uadmin-p ' redhat12345 ' MariaDB [(none)]> user Mysql;ma RIADB [mysql]> Show tables;To continue the query:MariaDB [mysql]> Select User,host from mysql.user;+-------+-----------+|user |Host |+-------+-----------+|admin | localhost |+-------+-----------+1 row in Set (0.00 sec)4. Delete Test database:MariaDB

configured to complete, enter the command:1 Ndb_mgm–e ShowIf the following information appears, the configuration is successful:If you do not see the above information, it may be a firewall problem, you can choose to switch the CentOS firewall, the command is:1/etc/init.d/iptables stopOf course you can choose to configure the firewall, open up some necessary ports, you can refer to my other article CentOS Open 3306 portClose the cluster and execute the command:1 ndb_mgm–e shutdownDual-machine

Tags: Use table not Eve to perform XXXX count check effectCheck for duplicate records --Check for duplicate code1 Select Count(Identity) Num,Identity fromEvent_logwhereCode='Code1' Group by Identity having Count(Identity)> 1 Order byNumdesc Delete duplicate records DELETE fromEvent_logWHERE' Code '='Code1' and Identity inch ( SELECT Identity from ( SELECT Identity fromEvent_logWHERECode='Code1' GROUP by Identity having Count(Identity)> 1) a) andId not inch ( SELECTKeep

Tags: file usage span cannot phenomenon temp file Select Server currentAt some point, more than one tempdb file has been created, and the server core number has been exceeded, and the tempdb file is deleted so that it remains the same as the number of CPU cores. However, when the deletion, found unable to delete, reported error: Cannot delete the file "Tempdev3", because it cannot be empty (Microsoft SQL Server, error: 5042) 　　 In this case, use the script to view data and log file usage: SELECT

Commands used to create a chat server and remove redundant software packages in Linux Here, let's look at the next part of the Linux Command Line practical skills. If you miss the article before Linux Tracks, you can find it here. Five interesting Linux Command Line skills In this article, we will introduce six command line tips, including using the Netcat command to create a Linux Command Line chat and adding a column from the output of a command,

Extjs itself is a slow loading JS framework. How to reduce redundant code written this time also improves the running speed. If you are interested, refer to the following, I hope it will help you to understand that Extjs itself is a JS framework with slow loading. This requires many programmers to optimize it. I have mentioned the JS packaging optimization before. How to reduce redundant code writing this t

The application is rejected again. The second time is returned. It hurts. After the change is completed today, you are ready to submit it again. However, this error is reported during submission through xcode. Error ITMS-9000: "Redundant Binary upload. There already exists a binary upload with build version '1. 0' Inexplicably. This means that the binary file of this version already exists and cannot be uploaded repeatedly. Then I tried to solve