Function declaration and expression in js, js function declaration expression// Function declaration: function name (){}// Function expression: function name (writable or not) () {}: anonymous function expression// Function aaa () {}: function declaration// Var a = function aaa () {}: name function expression// Var a = function () {}: anonymous function expression(Function
data is transmitted to the S5800-1 through the IRF optical fiber, a part of the switch is lost .........
Good! Let's make a traffic statistics to verify this situation:
Telnet 10.10.10.12 \ S5800 IP Address
Sys
Acl number 3876
Rule permit ip source 223.1.5.41 0 destination 223.1.5.1 0
Rule permit ip source 223.1.5.1 0 destination 223.1.5.41 0
Quit
Traffic classifier aaa
If-match acl 3876:
Quit
Traffic behavior
2016 calendarUser's environment variable:/home/user/.bash_profileSystem Environment variables:/etc/profileConfigure the. bashrc file to specify that some programs start automatically when the user logs on:One user on the system:/home/user/.BASHRCEntire system (all users):/ETC/BASHRCLinux Start-Up process Analysis
BIOS self-test;
Start Grub/lilo;
Run the Linux kernel and detect the hardware;
Run the system's first process init;
Init reads the information from the system
☆ Get all the table names of the database, all the column names of the tableSelect name from sysobjects where xtype= ' u '
Select name from syscolumns where id= (select Max (id) from sysobjects where xtype= ' u ' and name= ' table name ')
☆ Recursive query dataRecursive queries in SQL statements SqlServer2005 and Oracle two versions
Using Oracle before, and finding it useful for recursive queries, I studied SQL Server and found that it also supports recursive queries in SQL
An example is pro
IntelD945GCLF atom motherboard, in the following configuration: CPU: atom2301.6GHz hard drive: Seagate500G memory: kingstonddr2800mhz2 G sound card: onboard NIC: onboard RealTekR8102EL10/100MEthernet power supply: the typical power consumption test outlet of the buffalo mini chassis is 40 W. This motherboard is installed with Ubunt
The atom motherboard of Intel D945GCLF is configured as follows:
CPU: atom 2
Installation of mainstream SATA hard drive partition settings
I. BIOS settings
1. The main board of the south bridge is ich5/ich5r
2. The South Bridge is the main board of the Via vt8237
Ii. Partitioning of SATA Hard Disks
Iii. Operating System Installation
4. Driver Installation in the operating system
I. BIOS settings
Because the BIOS varies by motherboard, the setting principle is basically the same. Here we only introduce several typical BIOS settings, I believe that readers can refer to th
1. Reboot as follows
For Award bios: Click del to enter bios, find "chipset futures setup", Press enter, find onchip sound on the right, and set it to disabled.Add one:Some Award bios are changed to integrate peripherals, and then ac97 audio is set to disabled.
For phoenixaward BIOS: after entering the bios, move the color block to the "advanced" tab, find the "I/O device configuration" below, press enter, and find the "onboard ac97 Audio Controller"
say that the number of blade servers cannot be configured like this. .. That's not clear ...)
Install all and then connect
PDU
, Power-on. Everything works.
Start configuring OA (
HP onboard Administrator
Chassis Controller)
Configure blade Chassis
IP
Address
Use HP
C-class Blade Server
Of
OA
Remote Management port installation settings
Onboard administrator card
(
In this article
OA
Representative
O_direct method requires that the memory be byte aligned when writing data (the alignment is different depending on the kernel and the file system). This requires that the data be written with additional alignment operations. You can know the size of the alignment by/sys/block/sda/queue/logical_block_size, which is typically 512 bytes.L cannot perform IO merge. O_direct bypasses the page cache/buffer cache direct write storage device, so if the same block of data can not be hit in memory, the p
general, using O_direct to set up Innodb_flush_method is not 100% for all applications and scenarios.4. Storage Controller LayerThe buffer of this layer is placed in the corresponding onboard cache of the storage controller, which is mainly to buffer the data at the storage controller layer and avoid the slow block device reading and writing operation affecting the response time of IO.When data is brushed to the storage layer, such as Fsync (), it is
self-test in the speaker Volume below, if you disable the self-test, then speaker Volume option will not appear.
6. Speaker Volume Options: Adjusts the volume size of the power-on self-test sound.
Part III: Security Energy Options (abbreviated)
Part IV: Power Management
This section is simpler, with only two options, LCD power saving (display Energy saving mode), Start Battery calibration (Battery corrector).
1.LCD Power Saving (display Energy saving mode): Can turn on or off the display e
Controller LayerThe buffer of this layer is placed in the corresponding onboard cache of the storage controller, which is mainly to buffer the data at the storage controller layer and avoid the slow block device reading and writing operation affecting the response time of IO. When data is brushed to the storage layer, such as Fsync (), it is first sent to the storage controller layer. A common storage controller is a RAID card, and most of the raid c
Tags: telnet system software copy ssh Evel desktop CHM etc Sub-directory10.grep is a powerful text search tool in Linux systems. The main purpose is to search for key instructions, data, regular expressions, and so on.11. Open the soft keyboard: ctrl+alt+t, input onboard, if not installed this soft keyboard program, directly to the graphics library download: onboard sudo apt-get install
One. Python's class attributes and instance properties are a point of attention1 classTestatt ():2AAA = 103 4 defMain ():5 #Case 16Obj1 =Testatt ()7Obj2 =Testatt ()8 Printobj1.aaa, obj2.aaa, Testatt.aaa9 Ten #Case 2 OneOBJ1.AAA + = 1 A Printobj1.aaa, obj2.aaa
the prototype chain of another object.For differences between the two methods, see JavaScript isPrototypeOf vs instanceof usage.
Only use prototype chain for inheritance
Disadvantages: 1. The prototype property of the reference type value will be shared by the instance; 2. When creating a child-type instance, parameters cannot be passed to the super-Type constructor.
functionFather(){this.name ="father";this.friends = ['aaa','bbb'];}functionSon(){}So
: Cal 2016//view the Year 2016 calendarUser's environment variable:/home/user/.bash_profileSystem Environment variables:/etc/profileConfigure the. bashrc file to specify that some programs start automatically when the user logs on:One user on the system:/home/user/.BASHRCEntire system (all users):/ETC/BASHRCLinux Start-Up process Analysis
BIOS self-test;
Start Grub/lilo;
Run the Linux kernel and detect the hardware;
Run the system's first process init;
Init reads the inf
: JavaScript isprototypeof vs instanceof usage
Using only the prototype chain to implement inheritance
Disadvantages: 1. The prototype property of the reference type value is shared by the instance; 2. You cannot pass arguments to a superclass constructor when you create an instance of a subtype
Functionfather () {
this.name = "Father";
This.friends = [' aaa ', ' BBB '];
}
Functionson () {
}
Son.prototype = Newfather ();
Son.prototype.constr
options for SATA and RAID settings in the BIOS of the NForce series chipsets, both in integrated PeripHerals (consolidated perimeter) menu.SATA Setup Entry: serial- ATA , the setting value is [Enabled], [Disabled]. The purpose of this is to turn on or off the onboard Serial-ata controller. This entry must be set to [Enabled] using the SATA hard drive. If you do not use a SATA hard drive, you can set this to [Disabled], which reduces the amount of int
menu under main. Under the onboard ide operate mode, you can select two ide operation modes: compatible mode and enhanced mode (compatible mode and enhanced mode ). The compatibility mode is compatible mode, which can be understood as ing the SATA hard disk port to the corresponding port of the parallel port ide channel. When you select this mode, there are three options in the following ide port settings: Primary P-ATA + S-ATA: Parallel IDE Hard Dr
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