How to load a RAID driver in CentOS 7 0

1.Create a USB flash drive.

Upload the DD drive file to the USB flash drive.

Step 1> Copy the driver file to the root directory of Linux.

Step 2> dev sdb1 (Note: sdb1 is a U drive letter).

Step 3> dd if= root of= dev sdb1 (Note: SDB1 is a USB drive letter).

Create a USB flash drive file under Windows.

Step 1> Format the USB flash drive.

Step 2> Copy the drive file to a USB flash drive.

2.Load the driver.

Step 1> Enter the system installation interface, press the Tab button, enter the space field, linux dd, and press enter;

Step 2> Check whether the driver USB flash drive is recognized, if the input is not recognized, refresh it (here my driver USB flash drive is SDB1);

Step 3> Enter the driver U disk serial number (1) Enter, select the driver file serial number (1), enter C, enter C, enter C, and the driver is loaded;

Normally, you need to use a floppy drive and floppy disk, copy the RAID drive to the floppy disk, when you see "press F6 to load the disk drive" when installing the system, press F6, and then insert the drive floppy disk into the floppy drive, and then continue, the installer will automatically load the driver and continue the installation process.

Starting with Windows 2008, the installer supports loading RAID drivers from other devices.

Branded servers with RAID cards usually come with a navigation CD that boots the system, automatically prepares the drivers and guides you through the installation of the operating system. If you lose the navigation disc, you can go to the manufacturer **** and engrave the disk to use.

As for XP, 2003, etc., netizens have self-made installation disks that have integrated a lot of RAID drivers, and some have made the installation disk so that it can load drivers from a USB flash drive or CD.

Sometimes you want to know how many disks there are on the server, if you don't do RAID, you can simply use fdisk -l to see it.

But what about raids, so you can't see it. So how do you see if raid is done on a server?

Software RAID: Can only be viewed through the Linux system itself.

cat /proc/mdstat

You can see information such as raid level, status, etc.

Hardware RAID: The best way to do this is to check through the RAID vendor's management tools installed, both CMDLINE and GUI. For example, Adaptec's hardware card can be viewed using the following command:

# /usr/dpt/raidutil -l all

Very detailed information can be seen.

# dmesg |grep -i raid

# cat /proc/scsi/scsi

The information displayed is similar, RAID manufacturer, model, and level, but it is not possible to view the information of each hard drive.

CentOS does not support RAID card TX4660, just install CentOS instead.

The latest version: Pub Linux Centos

ftp: God Loss in the game in the god Linux centos

Hello your situation should be a hard drive failure, the following is a hard disk failure experience, you can refer to it.

If it still doesn't work, you can contact the Dell after-sales department for maintenance.

Dell's after-sales service**Consultation: Fixed**Dial 800-858-2969; Call 400-886-8610 from your cell

Dell Workshop Inquiries provided to you**:

1950 needs to do raid to recognize the hard disk, and a single hard disk can do raid0.