First, we need to understand the structure and working principle of the hard disk. In general, a hard disk can be regarded as a closed optical drive. The difference is that it has multiple disks and uses a head instead of a laser head to read and write data. We generally divide disks into channels and sectors for management. In the file area, several consecutive slices of a track are merged into a cluster, and the file occupies disk space in the unit of cluster. As long as one cluster breaks dow
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 housekeeper is doing a garbage scan, you will find that the size of a certain type of garbag
When you are working on a notebook computer, if you read a file or run a software, it often goes wrong, the system starts slowly, or it takes a long time to operate successfully. During the hard drive constantly read the disk and make a harsh noise: or on the boot system can not boot through the hard drive, the CD can be turned to the hard disk after the boot letter. But can not enter, use SYS command conduction system also cannot succeed. Severe when the system will not start normally, or the n
Common sense: Hard Disk Bad Track classification-different bad track points carefully
Because hard disks use magnetic media to store data, some problems will inevitably occur after a long period of use or improper use, that is, what we usually call "Bad channels ", of course, this type of bad track may be a software e
The steps are as follows:
First, if you have the following symptoms of the hard drive, you should pay attention to the hard drive has been a bad way:
(1) Read a file or run a program, the hard disk repeatedly read the disk and error, prompting file damage information, or to be successful after a long time, sometimes even a blue screen;
(2) The hard disk sound suddenly from the original normal friction sound into a strange sound;
(3) In the ca
NAND and its bad blocks
NAND Flash is a high-density low-cost storage, it has been widely used in a variety of embedded systems, USB storage devices, SD cards, mobile phones, cameras and solid-state drives are used in various devices are NAND chips. Its internal structure is organized according to block/page, and a NAND chip contains several blocks, and the interior of the block is composed of several pages. NAND chip factory may contain a number of
Jump out of hard drive misunderstandingSeveral common sense questions that have been misleading Gao Peng for many years are:1. Hard Disk logical bad sectors can be repaired, but physical bad sectors cannot be repaired. The actual situation is that bad channels are not divided into logical and physical bad channels. I d
Label: This article mainly describes how to deal with the problem of bad blocks in the Oracle database, for the bad blocks produced on different objects, the method of processing will be different, this article will be a general introduction to these methods. Because the database has been running for a long time, because of the aging of hardware devices, the chance of b
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Super ambulance 2005.12.30
Http://doshome.com/soft/SoftView/SoftView_147.html00.Http://www.tianya.cn/New/PublicForum/Content.asp? Flag = 1 idwriter = 0 Key = 0 idarticle = 78682 stritem = itHard Disk Bad Sectors are divided into two types: logical and physical bad sectors. The former is soft and bad sectors, which are usually caused by software operation
oracle| Data | database | questions
This article mainly describes how to deal with the problem of bad blocks in the Oracle database, for the bad block produced on different objects, the processing method will be different, this article will make a general introduction to these methods. Because the database is running for a long time, due to the aging of the hardware device, the chance of
In the computer accessories, the most squeamish users are the most worried about the hard drive. Indeed, the hard drive as soon as a boot into the high-speed rotation, and now the more the software to do more and more often, the hard disk read and write more and more frequently, due to improper use of users, so it is easy to cause the hard drive appears bad way. At this time the computer can not start and other failures, causing great losses to users.
XP system hard drive bad way to do
The steps are as follows:
First, if you have the following symptoms of the hard drive, you should pay attention to the hard drive has been a bad way:
(1) Read a file or run a program, the hard disk repeatedly read the disk and error, prompting file damage information, or to be successful after a long time, sometimes even a blue screen;
(2) The hard disk sound suddenly
Hard Disk Bad Track soft Repair Method
Bad hard drive channels (especially physical channels) are the most troublesome of all hard drive failures. If it is light, your machine will frequently crash, and the heavy data will make all your data useless. In the past, we generally only used low-level or hidden methods. However, the low level will have a certain impact on the hard drive's life; hiding will cause
hard drive has a physical bad way to do
HDD has a physical bad way solution one:
For the physical bad, the average user can not repair, the only thing we could do is to use some disk software to separate it into a single area and hide it, so that the head no longer read it, which can extend the hard disk life to some extent. It is important to emphasize that th
"Bad track" originates from a small-capacity hard drive more than 10 years ago. There was no system reservation inside the hard drive at that time. Factory, the factory will scan the hard disk in the presence of bad sectors of the track, and its location recorded in a small form, affixed to the hard disk shell, annotated "bad track list", that is often said "poor
Computer hard drive bad way is the word that we often hear, then what is the hard drive bad way? What is the cause of the hard drive bad? How to detect hard drive bad way, how to repair hard drive bad way? Please read this article.
Computer hard disk used too long will appe
Developer Rahul Singh recently listed outstanding programs and bad programs in his personal blog:ReferenceGood programs make complex things look simple; bad programs make simple things complicated.Excellent programs do not need to be explained; bad programs require a lot of comments.A good program requires more time, but less time in the future. A
1. Physical bad blocks and logical bad blocksThere is a concept in the database called data block consistency, Oracle's data block consistency includes two levels: physical consistency and logical consistency, if a data block at these two levels of inconsistency, it corresponds to the physical and logical bad blocks we want to say today.There is a checksum field
SATA hard drive has a bad way to solve:
If the logic is bad, it can be repaired.
Physical bad way, basically repair also won't take long.
The general measure is: Find the hard drive bad road after repair to avoid bad spread
The hard drive is found to be repaired or hidde
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