Mobile hard drive believe that everyone will not be unfamiliar, similar to ordinary hard disk, only the mobile hard disk emphasis is portable mass storage products, so the mobile hard drive more than the use of USB or IEEE1394 fas
capacity, the lower the average seek time. When the capacity of the single disc increases, the seeking action and the moving distance of the head are reduced, which reduces the average seek time and accelerates the hard disk speed. Therefore, in the purchase of hard disk products should be as far as possible to choose the average seek time short products.
Nine, Brand
Brand, this is in fact only in genera
, same as the Scis interface. Fibre Channel was not originally designed for hard disk design and development of interface technology, is designed for the network system, but with the storage system on the speed of the need to gradually apply to the hard disk system. The Fibre Channel hard disk is developed to improve the speed and flexibility of the multi-disk st
Now most people have been accustomed to buy online accessories, but there will be not at ease, such as the purchase of hard disk will ask the author how to query the authenticity, in fact, check the authenticity of the hard drive is very simple, only need to login official website, simple one-step input serial number can be.
First, let's look at the west number
good news is that hard disk manufacturers are beginning to provide hard disks with built-in full disk encryption. The Momentus 5400 FDE.2 hard drive manufactured by Seagate is a leader in this field. Compared with ATA Hard Disk l
the "Start position", enter the "0", press ENTER, and then in the "End position" enter "100", press Enter the "current hard disk" place to detect the hard disk number, For example, to detect the 2nd hard drive is entered "2", enter that start detection. As shown in the figure.
4. Repair
, the Seagate SATA3.0 hard drive has the same performance as the SATA2.0 hard drive in the average speed test, and also leads the western data 100 million to the Raptor hard drive. Visi
be successful. This is most likely the problem with the boot sector of the hard drive.
Second, the bad Road repair method:
1, the restoration of the logical bad Road
Under normal circumstances, hard drive logical bad reason is that some genuine software will be in some sectors of the
detection operation, and then log into the Windows system interface after performing any operation is normal. Then why is the system in the detection of the hard drive, hard drive detection can not be successfully passed it? Will it be hardware damage to the hard
1. The hard drive has bad track symptom
A. When reading a file or running a program, the hard disk repeatedly read the disk and error, prompting the file damage information, or it will take a long time to succeed; sometimes even a blue screen
B. ScanDisk scan disk error will be run automatically every time the system is powered on
C. When the ho
skipping the hard disk to start the floppy disk, so that regardless of whether the hard drive is locked, the hard drive can not be recognized with this boot floppy, so this boot disk can not be used as a normal MS-dos boot disk. Conversely, if you
mode, in fact, the serial technology is faster than the transmission speed of parallel technology.
Easier cabling-the flat, wide line of SCSI cables will no longer be used.
Wider scalability-compatible with SATA.
Lower costs-with the advantage of simplifying the internal connectivity design, you can reduce design costs by sharing components.
Look at this picture, this is the image of the SAS hard drive. Th
boot of the hard drive's boot zone to be compromised, we can fix it using the FDISK/MBR command, or use the KV3000 disk editing feature to find out if the other 62 sectors on the 0 0 side have a backup master boot program, restore it to 0 0-side 0.
The damage to the partition table is more cumbersome. If only the partition table does not have a "80" flag or multiple "80" flags, or no "55AA" flag, we can o
instructions on Jumper settings on the hard disk surface. Taking Seagate hard disk as an example (8), there are four main settings: "Master or single drive" (it indicates that the hard disk is set as the primary disk or only one hard
Sata's full name is serial Advanced Technology attachment (Serial Advanced technology Attachment, an industry-standard serial Hardware driver interface), which is made up of Intel, IBM, Dell, APT, The hard disk interface specification proposed by Maxtor and Seagate Corporation. The Serial ATA 1.0 specification was formally established in 2001 by the Serial ATA Board of Intel, APT, Dell, IBM,
. If the program is damaged, it cannot be booted from the hard disk, but the hard disk can be read and written after being started from the soft drive or optical drive. The solution to this fault is relatively simple. It is most convenient to use the FDISK of the higher DOS version. When the FDISK with parameters/mbr i
of the active partition. If the program is damaged, it cannot be booted from the hard disk, but the hard disk can be read and written after being started from the soft drive or optical drive. The solution to this fault is relatively simple. It is most convenient to use the FDISK of the higher DOS version. When the FDI
1. When installing CentOS with a USB flash drive, partition partitions should note: The system (contains Win7) can only be 4 primary partitions, so you can only delete a primary partition or in the extended partition in the free partition to establish the directory.2, CentOS at the end of the installation step, the boot loader option only "installed on the USB stick" One, note: not easily installed on the MBR, will overwrite the Win7 system boot loade
parts of the hard disk, and the main boot program is part of it, which is used primarily to detect the correctness of hard disk partitions and to determine the active partition, which is responsible for handing over the boot to the DOS or other operating system of the active partition. This piece of program corruption will not boot from the hard
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