After the server changed a group of hard disks, the hard disk itself already has the system, but after the server changed, but the hard disk is not detected, also can not be opened, the situation appears similar:How to deal with it, after starting, according to the prompt, p
Dellr710 server, there are 4 450G hard drives, the default do RAID5. Our aim is to take one of the 3 hard drives to do RAID5, leaving a hard drive to do hot standby.
Here, let me give you a concrete explanation.
① 4
servers, such as database services and related high concurrency services.
SATA 7200-10000 Turn /M has 1T and 2T recommended to provide server data storage backup, not suitable for online high concurrent server storage, can cause server access too slow or service outage.
3 )SSD SSDs, which are small in size and expensive, are suitable for businesse
Traditional hard drives are very slow to improve performance because of the limitations of their working principles. But the solid state hard disk price is expensive, in a short time is difficult to accept by the ordinary user. Therefore, the use of two or more pieces of hard disk to build a RAID disk array has become
partition16. Select SCSI33 (SDA)17, initialize the hard drive, select Yes18. Create/boot partition1. Create 1 new partitions2. Allocation of storage3. Select the partition and start the partition. I chose the primary partition4. For the raid physical volume and set the boot flag to ON18, create swap volume, home volume, root directory, operation and 171 samples, only the start of these three volumes are indicated as off19, the following is the config
Mount command format: mount [-tvfstype] [-ooptions] devicedir Where: 1.-tvfstype specifies the type of the file system, which is usually not required. Mount automatically selects the correct type. Common types include: CD or CD Image: iso9660...
Mount command format: mount [-t vfstype] [-o options] device dir where: 1.-t vfstype specifies the type of the file system, which is usually not required. Mount automatically selects the correct type. Common types include: Optical disc or optical disc im
pieces of hard disk?How many hard drives do RAID5? Simple to say: the so-called RAID5 is the use of more than 3 (including 3 hard drives) to do an array, of which two disk is the actual capacity, among which there is a disk as a spare, 3 disk agreed to a bad piece of disk,
the LUN is 172032 sectors. Use data Recovery tool to jump to 172032 sectors to observe the use of the hard disk, normally this sector belongs to the strip of the 5th plate should be the check area, but the actual situation shows that the check area is 8th, according to the rules of the raid left, the check area of the 5th plate should be at 172032-1024 = 171008 sectors, that is, the previous stripe. Jump to 171008 sectors and find the check area is n
rpmdy2c1d0arxhkj30oyefa65mbpwljzcckobxrfaxmxbkyuphlhtzvau5fv42psq0y=====================================================Go onAfter installing the system, the 3T hard disk display is not complete,650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/6E/47/wKioL1V4HDDiGoupAACWzXKbV-k965.jpg "title=" 3.jpg " alt= "Wkiol1v4hddigoupaacwzxkbv-k965.jpg"/>Using "partition,partition-tool,partitionmagic10.1 and 64-bit versions is not a solution,650) this.
SAS and SATA Hard Drive guidelines
When you add a hard disk drive to the server, follow these general rules:
The system will automatically set all drive numbers
If you are using only one hard drive, install the drive in the home with the smallest drive letter.
When multiple dri
I believe that the small partners have had such a problem, that is, the Linux server upload files too slow, but also affect the remote operation of course this can be done through the local hard drive to solve, but when you insert the hard disk, Mount Mount, There will be error errors in the approximate content is unable to mount NTFS-formatted partition, in fact
.jpg" height= "263" border= "0"/>Because I use the virtual machine, here is just to show you.In the Linux CD file we also see the EFI driver650) this.width=650; "Style=" background-image:none;border-bottom:0px;border-left:0px;padding-left:0px; padding-right:0px;border-top:0px;border-right:0px;padding-top:0px; "title=" clip_image012 "alt=" clip_image012 "src = "Http://s3.51cto.com/wyfs02/M00/74/14/wKiom1YSnmPiisAgAABvMC_Rxe4231.jpg" height= "border=" 0 "/>This article is from the "Little Rookie"
Hyper-V2: adding virtual hard drives, hyper-v2vm to VMS
Use Hyper-V to create a VM. After the VM is successfully installed with the OS, it is found that the VM has only one logical disk C, which is used to store the operating system of the VM. In the product environment, you need to add virtual hard disks to the VM to store data separately in different logical dr
other ways to specify the size of the partition) to this setting is done but note (now the partition is not saved now direct exit is not effective) W Save Q Exit After completion of the format Mkfs-t EXT4/DEV/SDB4 or MKFS.EXT4/DEV/SDB4 can then be manually mounted or added to the/etc/fstab file as described above to automatically load the boot, of course we can also mount-t ext4/d Ev/sdb4/data write to the file loaded after the Boot/etc/rc.local command: echo "mount-t ext4/dev/sdb4/data" >>/etc
implementation is the idea is to capture esxi data, and then encapsulate a Zabbix_sender class, the data to Zabbix sender, which has two scripts in the attachment, the function is as follows: get_disk_info.py: Obtain disk data from VC and generate the corresponding format (because the low level discovery required data is JSON) where to set more places, such as the VC address, user name, password and Zabbix information. zabbix_send.py: The primary is to encapsulate the data and send it to the
The server configuration is as follows:XEON5506 (2. 13)Memory: KST 4GB DDR3 ECCHard drive: st300g SAS-15000 to *1+1t Western Data enterprise-class hard driveMotherboard: Asus Z8ANA-D6+6480*1Chassis: 1U rack TypePower supply: 1U 400WAfter the assembly is ready, installation of the system found in the Win2003 installation interface hard disk partitions are normal,
(24 hours * 7 days), mail support and online repair, Dell also provides server extension program and "Keep your hard drive service", so that it builders or managers more assured.
Dell "Keep your hard drive" allows the user to obtain replacement and replacement of the hard drive under the warranty term, essentially en
control array cabinet to the array card installed in the PCI slot of the computer. Then one end of the cable is connected directly to the SCSI port in the computer's motherboard, not to the disk array card, the other end is still connected to the disk control array cabinet, and the computer is powered up, Let the Windows Server system to scan the hard drive again, the results of the author found that all S
itself. You do not need to buy a controller. You only need to buy a drive, which includes the Controller to achieve UDMA performance.
Disk drives often overlook the speed of disks. The disk speed is measured in rpm, which indicates how many times a disk is rotated per minute. The larger the rpm, the faster the disk speed. If you have a budget for this, most server system vendors can provide 7500rpm or even
better meet virtualized load requirements.4) improves application and load performance, especially on physical disks that have a sector size greater than 512 bytes.5) Support for storing custom metadata. For example, you can record the operating system version, or the patch information that has been installed.6) Use Windows PowerShell commands on the computer running Hyper-V to configure and manage the virtual disks.7) In the virtual hard disk format
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