kvr400x64c3a 512

content:kernel== "SDA", name= "SDB"kernel== "SDB", name= "SDA"(End of file)and then:# Service Udev Restart# Udevadm Control--reload-rules# Udevadm Trigger 1, view the disk of this machine The code is as follows Copy Code [Root@localhost rules.d]# Fdisk-ldisk/dev/vda:21.5 GB, 21474836480 bytesHeads, Sectors/track, 41610 cylindersUnits = Cylinders of 1008 * 516096 bytesSector size (logical/physical): bytes/512 bytes

Tags: MYSQL backup clusterLVM Snapshot Backup Mode[[emailprotected] ~]# fdisk-l/dev/sd* (view partition, do not partition experiment on SDA disk) disk/dev/sda:21.5 GB, 21474836480 bytes255 heads, s Ectors/track, 2610 cylindersunits = cylinders of 16065 * MB = 8225280 bytessector size (logical/physical): BYTES/51 2 bytesi/o size (minimum/optimal): bytes/512 bytesdisk identifier:0x00052558 Device Boot Start End Blocks Id system/dev/sda1 * 1 307200

Tags: Linux disk partitioningOne, FDISK partition1. Fdisk–l View Diskdisk/dev/sda:107.4 GB, 107374182400 bytes255 heads, Sectors/track, 13054 cylindersUnits = Cylinders of 16065 * 8225280 bytesSector size (logical/physical): bytes/512 bytesI/O size (minimum/optimal): bytes/512 bytesDisk IDENTIFIER:0X0005BC15Device Boot Start End Blocks Id System/DEV/SDA1 * 1 307200 LinuxPartition 1 does not end on cylinder

recovery. Disadvantage: write performance is slightly worse than RAID 0 + 1 (same read performance) My ideas The newly added hard disks are divided into four 1G areas, namely 1, 2, 3, and 5. Convert each two to a RAID 1 volume/dev/md {1, 2} Convert the two RAID 1 volumes into a RAID 0 volume/dev/md0 Convert RAID 0 to pv and vg Then create your own space through lv This space is RAID 1 + 0. Detailed implementation process Here we add a hard disk 2 for the experiment. We do not want to resta

, 320072933376 bytes255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectorsUnits = sectors of 1*512 = 512 bytesSector size (logical/physical): 512 bytes/512 bytesI/O size (minimum/optimal): 512 bytes/512 bytesDisk id

be displayed directly, but it is not mounted, you can click the USB flash drive with the mouse to display the file.++ ++Format a USB flash drive as an example:# Sudo umount/dev/sda1 // You must uninstall the partition first. Format as a FAT partition# Sudo mkfs. vfat-F 32/dev/sdb1 //-F parameters must be capitalized. The parameters include and 32, which correspond to FAT12, FAT16, and FAT32 respectively.++ ++ Disk/dev/sda: 250.1 GB, 250059350016 bytes255 heads, 63 sectors/track, 30401 cylinders

integrated with the motherboard, it has become a choice for players, especially those who need large storage space, such as video and audio production. The initial RAID is divided into different levels, each of which has its own theoretical advantages and disadvantages. Different Levels strike a balance between the two targets, increasing data reliability and increasing storage (group) read/write performance. Over the years, applications with different RAID concepts have emerged.How to Create a

disk, seeRational Planning of your hard disk partition Iii. fdisk-lView hard disk and partition information; Plan your hard disk partition properly, We know that the total number of primary partitions (including extended partitions) cannot exceed four, nor can we enclose extended Partitions between primary partitions. According to this principle, it is easier to divide hard disk partitions and reduce unnecessary troubles in the future;1. Use fdisk-L to view the number of hard disks mounted

1. Shut down the VM, select Settings, add the hard disk, create a virtual disk, select the SCSI type, set the disk capacity, and specify the name of the stored operating system file. 2. log on to the VM and switch to the root user, Root @ openstack :~ # Fdisk-l Disk/dev/SDB: 42.9 GB, 42949672960 bytes255 heads, 63 sectors/track, 5221 cylinders, total 83886080 sectorsUnits = sectors of 1*512 = 512 bytesSecto

hard disk partitions, we know that the total number of primary partitions (including extended partitions) cannot exceed four, nor can we enclose extended Partitions between primary partitions. According to this principle, it is easier to divide hard disk partitions and reduce unnecessary troubles in the future; 1. Use fdisk-L to view the number of hard disks mounted to the machine and the partition information; [Root @ localhost beinan] # fdisk-l Disk/dev/hda: 80.0 GB, 80026361856 bytes 255 hea

. Before inserting a mobile hard disk, use fdisk-l or more/proc/partitions to view the system's hard disk and hard disk partition. [Root at pldyrouter/] # fdisk-l Disk/dev/sda: 73 dot 4 GB, 73407820800 bytes 255 heads, 63 sectors/track, 8924 cylinders Units = cylinders of 16065*512 = 8225280 bytes Device Boot Start End Blocks Id System /Dev/sda1 1 4 32098 + de Dell Utility /Dev/sda2*5 2554 20482875 7 HPFS/NTFS /Dev/sda3 2555 7904 42973875 83 Linux /De

Linux tips 5-format a USB flash drive and linux tips 5 -- Generally, it is very easy to format a partitioned USB flash disk. You only need to use The mkfs command to specify the target file system. The example is as follows: $ sudo fdisk -l$ sudo mkfs -t vfat /dev/sdb1 The-t parameter is the target file format. Other parameters include ext3 and msdos. The default value is ext2.We can also use the following simple command to do this: mkdosfs(8), mke2fs(8), mkfs.bfs(8), mkfs.ext2(8), mkfs.ext

the terminal and run sudo gparted The gparted tool will be opened, right-click the gray unallocated area, create and format a file system in ntfs format (after the operation is complete, remember to click the application above the interface), and shut down.Install win7 Plug in the boot disk of Windows 7 after shutdown. Similar to opening the boot disk of ubuntu, install Windows 7 in the new partition. After the installation is complete, the system will automatically enter the windows system. If