In this article, I wowould like to cover a basic howto installing a second hard drive to explain and your storage needs.
It's been about a year since I purchased my new Linux system and I feel my 80 GB internal hard drive is running out of space already. so I 've decided to
, but Lenovo to the solid state drive, whether you can understand this problem.
Although the desktop can use a notebook hard disk, in turn, the notebook is not able to use the 3.5-inch standard desktop hard disk, because the internal space of the notebook is limited, the hard
Many friends feel that the notebook's hard disk is not enough, and do not like to use mobile hard disk, so I want to change a hard disk notebook, but do not know how to install the hard drive notebook, the following to introduce you.
1. Unplug the battery on your laptop bef
Test hard drive Bad Sectors in CentOS
Hard Disk status testing tools: smartctl, Badblocks, hdparm
You can quickly see whether the hard disk is healthy by using smartctl. The command is as follows:
[Root @ qy ~] # Yum installsmartmontools-y
Start SMART
# Smartctl -- smart = on -- offlineauto = on -- saveauto = on/dev/sd
Mobile hard drive There is a noise can't read out what to do
The main reason why a mobile hard disk cannot be recognized or opened by the computer is due to insufficient power supply on the USB interface. It is recommended that you use a standard mobile hard drive data cabl
Today a bit of time, suddenly think of the new company, the server's hardware has a failure, and now write down to give friends a little experience to share
I remember the time when the people who were in my post were leaving, the manager took me to the computer room familiar with the environment, by the way to replace the backup tapes (backup tapes have to be replaced manually, I dizzy AH), because into the room need to access documents, I do not have documents, it needs to wait for the
Installation system can not find a hard drive solution
First of all, we find the reason from the periphery, a hard drive to work first must have a power supply, there is an IDE line with the motherboard.
Therefore, do not recognize the hard
Disk media in the storage area is the most critical device, and all data and information is stored on disk media. The reading speed of the data is determined by the connection interface of the disk media. We used to do data storage through SCSI or SATA interfaces and hard drives. But in recent years a new technology has increasingly been favored by small and medium-sized enterprises and even large enterprises. Is the SAS technology and its correspondi
Hard disk identification for Linux:
After 2.6 kernel, Linux will identify the hardware devices, under the/dev/to establish the appropriate device files. such as:
SDA represents the 1th SCSI hard drive
HDA represents the 1th IDE hard disk (that is, the master port connected to the 1th IDE interface)
The scd0 represe
The data cannot be deleted because the hard drive cannot be added. So the method of using mount to another machine (137) space. As follows:1, 137 on Vim/etc/exportsAdded:/mnt/data/mongodb 192.168.10.135 (Rw,no_root_squash)Then: EXPORTFS-RV2, Mount 137 of the space to the local,Mount-t nfs-o RW 192.168.10.155:/mnt/data/mongodb/data/mongodb3, Stop 135 MongoDB, Kill-2 PID4, the original starting mode: Toolbox/
, for SSD drives, because the internal structure is different, not recommended defragmentation, here is not explained.) ), you can look at my d disk inside the space utilization, not continuous, such as:Note: The operation of the operating system on the file is more complicated than this, for example, delete the file does not actually delete from the sector, otherwise the recovery can not recover files, specific to see the operating system knowledge.
hard drives, SDA and SDB, where SDA is currently in use in the hard drive, SDB is the new plus go hard drive.
2. Create a new hard disk partition for SDB:
First of all, Fdisk can use the M command to look at the
out the external large capacity cache, claiming that it can not rely on large capacity capacitance, can ensure data security and reliability
It is true that the data loss of electricity is really greatly alleviated, but, in fact, SF2000 series master control inside, in fact, there is a certain amount of buffer existence. Therefore, external high-capacity capacitance is still one of the optional reference scheme!
In fact, this problem is very good solution. Now let's take a look at
Speed: Refers to the drive spindle motor per minute (drive disk) of the speed, such as 5400 RPM on behalf of the hard drive spindle speed of 5400 revolutions per minute. Desktop hard disk speed is still 7200 rpm, and the main notebook speed is from 5400 to 7200 rpm, performa
When your hard drive is damaged or infected, it is easiest to use the antivirus program developed by the trusted manufacturer to clear it.
Usually an internal hard drive has only one operating system installed in it, and troubleshooting is easier because the process of inst
The speed of hard disk is one of the key factors to determine the internal transmission rate, which directly affects the user's daily data storage. So the faster the speed, the faster the hard disk looks for files, and it means the faster the transmission. More thoroughly, most laptops now use mechanical hard drives th
computer, and then click OK.
5. Select the driver from the list of results, and then click Next. Follow the on-screen instructions to continue installing Windows 7.
Updating drivers for computer chip sets
In some environments, computers that use a specific type of chip set (part of your computer's internal hardware) and that have an advanced formatted hard drive
What is SAS?
SAS is a new generation of SCSI technology, and the popular Serial ATA (SATA)Hard DiskSimilarly, serial technology is used to achieve higher transmission speeds and improve internal space by shortening the connection lines. SAS is a new interface developed after the parallel SCSI interface. This interface is designed to improve the efficiency, availability, and scalability of the storage syste
How much is the hard drive temperature normal?
1, the general mechanical hard disk working temperature of 0°c to 60°c, so we can think of the working temperature of the hard disk in this range should be normal.
2, according to the different environment and indoor temperature of different computer
queuing. This routine calls an address of the DriverStartIo routine in the hard drive. Therefore, in addition to IRP_MJ_SCSI, All I/O requests on the hard disk will be blocked as long as DriverStartIo is used for hooks or hooks.
New driver modules
This new version of the driver module providesThe drivers of ataport. sys and atapi. sys, that is, the drivers tha
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