IBM_DS5020 disk array for raid, hot standby and attaching the disk array to the server, ibm_ds5020raid
During work, the hard disk in the server disk array is damaged and the new hard disk is replaced, but some sectors cannot be read. In this case, RAID 5 and hot backup are r
How to view hard disk models and hard disk serial numbers in linux hdparm-I/dev/hda display hard disk settings [root @ cnscn ~] # Hdparm/dev/sda: IO_support = 0 (default 16-bit) readonly = 0 (off) readahead = 256 (on) geometry = 19929 [number of cylinders]/255 [number of magnetic heads]/63 [number of sectors], sectors = 320173056 [total number of sectors], start
First, the design of WinPE start USB drive production1, first plug into the computer USB interface (Important note: The production process will be formatted USB disk, pay attention to backup data);2, unzip the downloaded Winpeu.rar file;3, in the Winpeu.rar decompression directory open UltraISO.exe program;4, in open UltraISO program interface, double hit open winpe.iso disc image file;5. Then select "Boot disc"/"Write HDD image" in the top menu;6. I
Specific steps:
1, decompression and use UltraISO software to open rhel-5.3-server-i386-dvd.iso files extracted images/boot.iso files. As shown in the following figure
2, the use of UltraISO software, click to start-> write to the hard disk image-> write. Boot.iso file will be written to u disk, U disk other files will be all lost, so before writing the recomme
one, tools/raw materials
A u disk, can also be a mobile phone or digital camera memory card through the reader to connect with the computer;
A bootable system ISO image, can be installed version, clone version, can be maintenance disk, WinPE, etc.
Burning software UltraISO, with a single file green version on it, Golden Fox software package has always had it;
Ii. Steps/Methods
1, Start UltraISO, clic
As shown in the image above to enter the WinPE system to open My computer to see the screen, we can find that the U disk has been occupied by the C disk, and the system disk (that is, the usual C-disk) of the letter is D. Today you start a small set to teach you how to prevent the U
For files deleted on your computer, normally, if you don't have a special deal, the system simply deletes the file name in the Files allocation table, and the real data is still on disk. With some data recovery software, it's easy to recover files that have been called deleted.
The partition assistant has the ability to erase the disk, it can completely delete the data on the
I. Use the hdparm commandThis is a command used to obtain the parameters of the ATA/IDE hard disk, hdparm has been written by Mark Lord, the primary developer and maintainer of the (E) IDE driver for Linux, with suggestions from javasnetfolk ). this command should also be used only for Linux systems. For UNIX systems, ATA/IDE Hard Disks may be used less often. Generally, large systems use disk arrays.Easy t
Work Assignment DescriptionIn the previous project, HT company deployed Windows Server 2008 for HW, and acquired 3 8G (experimental emulated) hard drives, which required the following actionsProject requirements:1. Upgrade these 3 disks to dynamic disks.2. Create a simple volume on disk 1 with a size of 10M, formatted as NTFS, and the volume labeled E:3. After completion, expand the E volume, provided by disk
Work Assignment DescriptionIn the previous project, HT company deployed Windows Server 2008 for HW, and acquired 3 8G (experimental emulated) hard drives, which required the following actionsProject requirements:1. Upgrade these 3 disks to dynamic disks.2. Create a simple volume on disk 1 with a size of 10M, formatted as NTFS, and the volume labeled E:3. After completion, expand the E volume, provided by disk
Disk management in linux: (1) disk structure, partitions, and linux
Recently, I have compiled some knowledge about disk management and found that there are still a lot of data. I have divided it into four parts to share with you:
1. Disk structure, understanding partitions
2. Manage partitions and format the File Syste
Linux 4-disk and file system management and linux Disk System Management
1. Some basic definitions
1. superblock: record the overall information of this filesystem, including the total inode/block volume, usage, remaining amount, and file system format and related information;2. inode: records the attributes of an archive. An archive occupies one inode and records the block number of the archive data;3. blo
In vmware linux, after a new disk is added, refresh the disk, scan the SCSI bus again, and add the SCSI device without restarting the VM.
[Root @ centos4 scsi_host] # ls
Host0 host1 host2
[Root @ centos4 scsi_host] # fdisk-l
Disk/dev/sda: 21.5 GB, 21474836480 bytes, 41943040 sectors
Units = sectors of 1*512 = 512 bytes
Sector size (logical/physical): 512 bytes/51
①u start the v6.2 version u disk start disk Production tool;
② a U disk with a capacity greater than 4G for easy system image file storage;
Operation Steps:
First step:
Insert the prepared U disk on the USB interface of the computer, then open u start v6.2 version U disk
Recently, a netizen asked what does disk caching mean? The following small series will be for the vast number of computer enthusiasts to explain the computer knowledge, hope to help everyone better to understand the disk cache, and also attach the Thunderbolt disk cache How to set the method:
In fact, the disk cache i
DF: List The overall disk usage of the file systemDu: Check Disk space usageFDISK: For disk partitioningThe DF command lists the overall disk usage of the systemDF Command parameter function: Check the disk space consumption of the file system. You can use this command to ge
[Host planning and disk partitioning] disk partitioning MBRRelationship between the disk connection method and the device file name
The mainstream disk interfaces areSATA interface. SATA, USB, SCSI, and other disk interfaces are all driven by the SCSI module.Therefore, the
Computer hard disk partition why is C disk? Where are the A and B plates? Both A and B are reserved for floppy disk drives and are all 5.25-inch disks.
Open Windows system computer, see the first hard disk partition is C disk, excuse me, A and B
C ++ hardware information to obtain the hard disk serial number and the hard disk serial number
This section describes how to obtain the serial number of a hard disk, not the serial number of a hard disk partition. The core is throughDeviceIoControlInterface to obtain the version and data information of the hard
Disk quota, Disk quota
Disk Quota
1. Enable Disk Quota
First, create a new partition/dev/sd5 and create a file system.
[Root @ local ~] # Mkfs. ext4/dev/sda5
Because xfs does not have a disk quota, ext4.
Mount the/dev/sda5 partition to/home.
[Root @ local ~] # Mount/dev/sda5
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