raid 1 backup

In the article "use of software RAID in Linux", we talked about the basic concepts of software RAID in Linux and how to use mdadm program to manage software RAID devices, this section describes how to create, delete, stop, and expand a software RAID device, and how to manage its metadata and bitmap data. In this articl

FTP Server transfer performance test RAID 1+0 Chapter February 09, 2012 13:27 it168 website Original Huizer Editor: Huizer View full text likes (0) Comments (1) share "IT168 evaluation" as the most commonly used in the daily office of the application server, the FTP server has a lot of work, and in the FTP server performance indicators, transmission efficiency

Create soft RAID 1 under CentOS6.5What is RAID? RAID, Redundant Array of Independent Disks, formerly known as Redundant Array of Inexpensive Disks, is short for hard disk arrays. The basic idea is to combine multiple relatively inexpensive hard disks into a hard disk array group, so that the performance can reach or ev

RAID 0 + 1 is a combination of RAID 0 and RAID 1, also known as raid 10. Taking RAID 0 + 1 composed of four disks as an example, the data

1. What is RAID1? RAID1, which can be called an image, writes data to multiple disks. For example, if A group of data is called A, data exists like this: A and A. In this way, data security is high, but performance is poor. Two or more groups of N disks are used as images for each other. In some multi-threaded operating systems, the read speed is good, and the write speed is slightly reduced. Unless the primary disk and image with the same data are d

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1. What is raid1? Raid1, which can be called an image, writes data to multiple disks. For example, if a group of data is called a, data exists like this: A and A. In this way, data security is high, but performance is poor. Two or more groups of N disks are used as images for each other. In some multi-threaded operating systems, the read speed is good, and the write speed is slightly reduced. Unless the primary disk and image with the same data are d

]Pvmove [Pvremove]Pvremove [PVs]PVS//View physical volumes[Pvscan]Pvscan//Scan a physical volume on your computer[Restore]Restore-f -T view the backup file for important data-C View whether the backup and actual files are different, and output different files-I This is an interactive command that can restore some files-R Restore the entire file system-H View information such as Inode,label in a full

I wanted to write one by myself, but I was shameless to repost it when I saw someone on the Internet who had already written it. I marked my remarks in red letters. I also need to add several mdadm commands. In case of any loss, I will try again. 1. Remove a partition from raid Mdadm-manage/dev/md1-Remove/dev/sda1 2. Disable an MD device. Mdadm-Stop/dev/md1 See: http://hi.baidu.com/enjoyunix/b

Have you ever thought of making soft RAID for low-end servers? You may have thought about the redundancy of your workstation with disk mirroring without purchasing a hard RAID control card. Have you ever had painful configuration experiences that deterred you from soft RAID on Unix systems? The FreeBSD 5.3 and higher versions are added to Gmirror (8); it lets yo

HP ProLiant SL210T server, typically with two array cardsA server comes with a Dynamic Smart array b120i RAID Controller, a Smart array P420 Controller for slot card slotsHere we use the Smart array P420 RAID 1 type array configuration for the server's disk, and the configuration process is as follows:1, the server boo

According to the order list, the HP rx2660 minicomputers in various cities are configured with 4 146 gb sas 10 k 2.5 inch hard disks. When the operating system is installed, two disks are automatically made into RAID 1, the principle is to prioritize hard disks with a large slot number (from left to right, such as 1, 2, 3, 4, 5, 6, 7, and 8 ). Check whether the

System Disk categoryIn Windows 2000 Server, disks are classified into basic disks and dynamic disks.Basic disks comply with the partition-oriented solution in the disk organizational structure of Windows NT Server 4.0. When you install the Windows 2000 Server operating system, the system automatically initializes the physical disk as a basic disk. You can create and delete primary partitions, extended partitions, and logical partitions on a basic disk. You cannot create disk images.A Dynamic Dis

cylindersUnits = Cylinders of 16065 * 8225280 bytesSector size (logical/physical): bytes/512 bytesI/O size (minimum/optimal): bytes/512 bytesDisk identifier:0x8f7a12edDevice Boot Start End Blocks Id System/DEV/SDC1 1 3916 31455238+ fd Linux raid AutoDetectgo to mount directory installation rpm Mdadm PackageCd/mnt/packages650) this.width=650; "title=" Snap433.gif "src=" http://s3.51cto.com/wyfs02/M00/45/FE/

Soft RAID 1 replace bad disk 1. buy a hard disk of the same size. install the new hard disk on the machine. partition the hard disk and set the t type to: quot; fd quot; (the new drive letter is/dev/sdb # fdisk/dev/sdb4. run quot; partprobe quot; let the kernel reload the partition table 5. stop RAID1 mounting... soft RAI