Shulou(Shulou.com)05/31 Report--

Today, I would like to talk to you about the requirements of RAID on the server, many people may not know much about it. In order to make you understand better, the editor summarized the following content for you. I hope you can get something according to this article.

What are the server requirements of RAID?

RAID technology is not only widely used in the server, but also widely used in IT and other aspects. The server has a very wide range of applications for many technologies. Here, I will introduce the requirements of RAID to the server.

Are the disks in the disk array connected with the overall backplane of SCA-II or only with SCSI cables? Is there an isolation chip on the overall backplane of the SCA-II to prevent the high / low voltage generated by the hot-swappable disk from causing the system voltage to return, resulting in system instability and data loss? This will all be taken seriously. Because many disks in the disk array share the same SCSI bus, one disk is hot-swappable and cannot affect other disks. 80-pin SCSI disks are hot-swappable, while 68-pin ones do not. Whether there is hot plug or not is reflected in the design of the circuit, that is, the design of the protective circuit. Similarly, disk trailers have the difference between real hot-swappable and fake hot-swappable.

When configuring a tape array, also pay attention to the order (not all) of the disks in the array. In other words, after some RAID array cards are unplugged from the disk, only by inserting them back into the l column in order to ensure that the data can still be accessed normally. For example, using six disks as an array, at the initial initialization, the six disks are placed in the disk array sequentially, divided into 1 and 2. To the sixth disk. If the disk array has sequence requirements, after removing the disk for maintenance, be sure to insert the disk back into the disk array in the original order, otherwise, it may be because the disk order is not the same as the original. The controller on the disk array cannot recognize the disk, resulting in data loss.

What are the server requirements of RAID? I believe you have read these articles for RAID server requirements must have been very clear, when we choose a server, we can make a lot of comparison on this point, compared to the fast server to run the website speed will be faster.

After reading the above, do you have any further understanding of RAID's requirements for the server? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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