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A customer's DS5020 fiber storage failure results in data loss, which uses 16 hard disks to form a RAID disk array. The 10th and 13th dials are dropped, and the number 6th warns that data recovery is required.RAID disk array failure conditions:The

1. For example:1. Review the reference list: see what apps are on your current device (the package name is shown)2. View System applications3. View third-party apps4. Package name contains the application of a stringTwo different ways5. Install apk6.

Phenomenonsql> ALTER DATABASE open resetlogs;ALTER DATABASE open Resetlogs*ERROR at line 1:Ora-00392:log 4 of Thread 1 is being cleared, operation not allowedOra-00312:online Log 4 Thread 1: '/mnt/data/pbf/db/proddata/redo04a.log 'Ora-00312:online

1. Business All update operations performed by a session either succeed together or fail together For example:A to B transfer, transfer this process if there is a problem, the transaction can let the data back to the original "a

VMware has a large market share in small and medium-sized virtualized applications, and it is highly recognized, but according to the latest news in the line, Huawei's funsioncloud shipments to the domestic OpenStack commercial product have

What is a daemon process?The daemon (Daemon process), which is usually called the Daemon process (daemon), is the background service process in Linux. It is a long-lived process, usually independent of the control terminal and periodically performs

Spring Cloud provides multiple filters for each phase of an HTTP request, the order of execution of which is determined by an int value provided, the smaller the value, the higher the priority, and the default filter and priority as follows:Custom

For the password to decipher the author does not understand, before the activation of a variety of serial numbers also some speculation, their own according to the idea of a serial number verification of the small framework, the tool can also be

$nodesArrays = [[' id ' = 1, ' pid ' = + 0, ' name ' = ' a '],[' id ' = 2, ' pid ' = + 0, ' name ' = ' B '],[' id ' = 3, ' pid ' = + 1, ' name ' = ' C '],[' id ' = 4, ' pid ' = + 2, ' name ' = ' d '],[' id ' = 5, ' pid ' = + 6, ' name ' = ' E '],['

Run DashboardHe is a launcher that replaces a better clear introduction to the Run window. Normally when we need to start multiple windows, the Run window does not allow us to visually see the changes we see for each port.We can compare this to the

In fact, this blog online a large, why also write out this blog?Online examples are based on the elasticsearch2.x version, not the 5.x version, and there are many are wrong, take it is not directly used to test, there is spring-data no corresponding

Two words of naggingTrue, soap is harder to use than the now-popular restful webservice. Redundant XML text information too much, poor readability, its request information is sometimes difficult to manually construct, not very good debugging. But to

This series of articles index the "Response Spring's word Wizard"Previously summary Spring Webflux Quick Start | Spring Webflux Performance Test1.4.3 Netflix's asynchronous caseThe first two sections, through Gatling and simple examples, have seen

This series of articles index: "Response Spring's word Wizard".1 The way of reactive programming 1.1 what is responsive programming?Before you start talking about responsive programming (reactive programming), take a look at a powerful productivity

I. How spring uses multiple XML configuration files1, define the Contextconfiglocation parameter in Web. XML, spring will use this parameter to load all the comma-delimited files, if not, spring default load web-inf/ Applicationcontext.xml file.For

Concatenation of one-dimensional arrays and two-dimensional arraysNumPy has a lot of splicing functions. such as Hstack and Vstack. There are many such summary posts on the Internet. But the condition that two arrays can be spliced is the same

First, control the browser1.1 Controlling the browser window size# Gets the size of the current browser driver. Get_window_size() # set the browser size driver by pixel. Set_window_size(' width ',' height ') # Gets the coordinates x, y

Brief: This series of articles will be a comprehensive introduction to the Expo, I contact the Expo since June 2017, the study of the Expo intermittent, all the way to nearly 10 months, nonsense not to say, next you see the content, speak all to the

Examples of awk built-in variables: Examples of NR, FNR, and NF, awkfnr NR indicates the number of data reads Based on the record delimiter after running from awk. The default record delimiter is a line break. Therefore, the default value is the

Command Line2 zip and unzip, line2unzipCommand Line-ZIP 1. know zip You can use man zip to obtain the man page of the zip command. The zip command can be used to compress the package file. The compressed file ends with. zip. man zip 2. Zip