There is a growing number of people choosing an IDE disk array card (IDE RAID card) to ensure data security, and it is also a learning how to use the IDE RAID card correctly. Let's take a Rocket100 RAID card with ht370a/372 control chip as an example to explain common malfunctions and techniques.
Installation need to know
First find a free PCI slot to insert the card and the hard drive cable and the card installation connection, after installation adapter card, in the process of starting the c
-IDR images), 2 (coded stripe data Block a), 3 (coded stripe data block B), 4 (coded stripe data block C), 5 (coded stripe for IDR image), five types of Nalnal_unit_type
Slice has three encoding modes: I_slice, P_slice, B_slice
The five types of nalnal_unit_type represent what information is represented next and how it
largely unused. But theoretically, the more basic the technology is, the better its practicality and durability. Now Raid6 useful,The most used are RAID10 and raid01. 1) RAID0The following assumes that there are two hard disks in the array. RAID first contains all the hard disk space to draw a stripe,Strips have a piece on each hard drive,These block spaces are the same size. To save a file to the RAID0 disk,It cuts the files into chunks and puts the
[[emailprotected] ~]# mke2fs-t ext4-b 2048/dev/sdb1# is specified as a ext4 format with a block size of 2048; here's a command MKFS.EXT4 equivalent to Mke2fs-t EXT4MKE2FS 1.42.9 (28-dec-2013) Filesystem label=os type:linuxblock size=2048 (log=1) Fragment size=2048 (log=1) stride=0 blocks, Stripe width=0 blocks131072 inodes, 1048576 blocks52428 blocks (5.00%) reserved for the Super Userfirst data block =0maximum filesystem blocks=26948403264 Block gr
OS to check and operate. The following is a simple usage:
1, create DG
SQL> CREATE DISKGROUP ACFSDG EXTERNAL REDUNDANCY DISK 'ORCL:ASMDISK8' SIZE 4157 M DISK 'ORCL:ASMDISK9' SIZE 4157 MATTRIBUTE 'compatible.asm' = '11.2', 'compatible.advm' = '11.2';
2. Modify the version. Sometimes, although the database installation version is 11.2, some parameter versions are not. Check whether
alter diskgroup FRA set attribute 'COMPATIBLE.ASM'='11.2';alter diskgroup FRA set attribute 'compatible.advm'='11
Today's OPS, most of the Linux LVM, estimated that few people understand the Solaris SVM. N years ago, in the Linux x86 has not been male, in fact, Aix/hp/sun three mainframe giants have their own set of storage management mechanisms and software, of which Sun is SVM. In addition to their own dedicated storage management software, there are third-party commercial storage management software, such as Veritas, can also be used to manage Solaris storage, but these commercial software, under the imp
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4. RAID Basics
JBOD: A set of disks in the same disk cabinet, does not provide fault tolerance, raise the small, due to a jbod defect occurred raid.
Striped: Raid
used raid technology. A variety of independent hard disks are striped, the same stripe area for parity, check data evenly distributed on each hard disk. The RAID 5 array built with n fast drives can have N-1 fast hard drive capacity and storage space utilization is very high. RAID 5 has the advantages of data security, good reading and writing speed, high space utilization, and wide application, but the disadvantage is that the performance of the who
class or interface >is defined once in the container, which manages resolving and injecting thos e objects throughout your application.
Controlling reversal containers makes dependency injection more convenient. When a class or interface is defined in a container, how do you handle it-how do you manage and inject these objects into your application?
In a Laravel application, the IoC container can be accessed via the App facade. The container has a variety of methods, but we'll start w
vertices in the previous triangle, and get only 1 vertices from the vertex buffer. It turns out that this is supported by Direct3D, a topological structure called a triangular stripe. When you render a triangle stripe, the first triangle is defined by the top three vertices in the vertex buffer. The next triangle is defined by the last two vertices of the previous triangle plus the next vertex in the verte
If you ask a worker to work for you for seven days, the reward for the worker is a golden stripe. The golden bars are evenly divided into seven connected segments. You must give them a golden bar at the end of each day. If you only make two breaks, how do you pay for your workers?Solution:The essence of this question is digital representation. Two numbers, one or two, can represent three numbers: 1-3. The numbers 1, 2, and 4 can represent seven number
example.Create a folder named data_for_dbunder C:/, edit the script.txt file, and save it to C:/. The content is as follows:Use nbcreditGoSelect "BCP nbcredit .." + name + "out C:/data_for_db/" + name + "-USA-pxxx-c" from sysobjects where type = "U"GoNote: The BCP parameter "-c" indicates the text mode, and "-n" indicates the binary mode.Run the following command on Windows: iSQL-USA-pxxx-B-I script.txt-O bcpout. bat will see a bcpout in C. execute the bat batch file.Run the following command o
video playback summary 2616.4 camera 2626.4.1 System camera 2626.4.2 simple camera 2656.4.3 photo summary 2746.5 stripe code 2746.5.1 stripe code recognition database 2746.5.2 obtain the stripe code 2786.5.3 stripe code summary 2846.6 Summary 2846.7 exercise 284Chapter 4 mobile phone communication function development
States. It means tedious and annoying work .) As an example of stripe, it is a typical case of disabling and benefiting from the dislike filter. Thousands of programmers can see this idea, and they all know it in stripe.One thing that really hurts when dealing with online payments. But they turned a blind eye to Stripe's idea when looking for a startup, because they would unconsciously avoid payment-related matters. For
As you know from the previous article, ServiceProvider is managing container, so when you add your own classes to container, you also register serviceprovider to manage
1. Create a custom class
It is important to note that Laravel can automatically load the PHP classes in its own app directory, as long as it conforms to the PSR4 naming convention.
app/billing/stripe.php //Here in the APP set up a billing directory, which put a Stripe class
2
To give you illustrator software users to detailed analysis of the plot to draw the effect of linear fringe geometric art of the tutorial.
Tutorial Sharing:
First, create art brushes
To make a stripe pattern, the first thing we need to think about is what tools are used to achieve it more quickly. Because such as stripes, dots, squares ... This kind of basic pattern has the common character that repeats a certain visual la
, read operation performance has been improved, but write performance loss is great, if a hard drive fails, hard disk rebuild workload is very large, RAID 5 is suitable for DSS (decision support System) application, the OLTP (the on-line thing processing) application is not very suitable;
• When implementing RAID, to properly select the size of the stripe, the three main factors that determine the size of the bar are the characteristics of the applic
RAID 10 (also called a raid 1+0 or mirrored stripe) array combines the functionality features of RAID 0 and RAID 12 to provide high-performance, fault-tolerant disk input/output operations. In RAID 0, read/write operations execute across multiple drives, and in RAID 1, identical data is written to two or more drives.
In this tutorial, I'll describe how to build a software RAID 10 array using 5 identical 8 GIB disks. Although the maximum number of dis
RAID 0: Stripe group without error controlTo implement RAID0 must have more than two hard drives, RAID0 implements the stripe group, the data is not stored on a hard disk, but is divided into blocks of data stored on different drives. Because the data is distributed across different drives, the data throughput is greatly increased and the load on the drive is more balanced. If exactly the data you need is t
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