internal hard drive caddy

The theoretical data for SATA2.0 and SATA3.0 hard drives are quite different, however, the actual use of the platform itself and the control of the system, as well as different applications to determine the actual use of the results, and through some network of actual test data collected to show SATA2.0 and SATA3.0 hard drive speed difference is not very clear Ex

1, keep the computer working environment clean Hard disk with Ultra fine filter paper of the breathing hole with the outside world, it can be used in the ordinary no purification device indoor environment, if the dust in a serious environment, will be adsorbed to the PCBA surface, spindle motor internal and plug the breathing filter, it must be dust-proof. There is also a humid environment, voltage instab

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.　

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