3 minutes to read the hard disk medical examination to do so

Two days ago, a small partner asked his own hard disk how to look at how much time spent, Xiao Bian happened to have recently replaced the hard disk, salted fish selling also encountered buyer consultation, simply share it today to share how to check the health of the hard disk The situation is good.

In salted fish, many buyers and sellers buy and sell hard drives. If they sell their own hard drives or buy second-hand drives, they must be aware of the test results. Otherwise, they will not buy or sell them. This way, they are most responsible for themselves.

First of all, download the software provided by Xiaobian, download address: http://pan.baidu.com/s/1hr7BP56 (public reply: hard disk detection), decompression and use (Note X86 or X64). The following small series is divided into two parts of mechanical hard disk and solid state drive to tell everyone how to check the status.

Mechanical hard disk

Mechanical Hard Drives Nowadays, many computers have become data warehouses. However, unlike solid state drives, structural features of mechanical hard drives are prone to bad sectors and such failures, and bad sectors will gradually spread like infectious diseases, eventually leading to hard disk damage. So daily can check the hard disk's working condition to determine the health of the mechanical hard disk, so that it can take precautions.

After running the software, the focus is on the lower part, which is the biggest difference between observing mechanical hard drives and solid state drives. The bottom part is the code IDs of some hard disk manufacturers. The attribute names are generally corresponding to the values ​​of their own IDs. The heads, bad sectors and the like can all be seen from this part. In general, the current value and the worst value of the mechanical hard disk with intact status should be the same. If there is an abnormality, the current value will have a deviation from the worst value, and the “hard disk health status” on the upper left will also change color. The normal status is Green, yellow when warning, if there is a red warning, then the hard disk must be replaced.

Hey, Xiao Bian posted a hard disk that once had a bad track. Note that ID 05 is bad news for Western Digital. In this case, the hard disk must be replaced. In fact, Xiao Bian wants to say that if there is a yellow warning on the hard disk, it is best to start backing up the data and replacing the hard disk.

hint:

The 05, C4, C5, and C6 items in the hard disk SMART table are about the bad sectors of the hard disk.

05 is the count after repair;

C4 is a separate count [both repaired and unrepaired bad sectors will count];

C5 is the current sector to be repaired. It will attempt to repair when it encounters the problematic sector.

C6 is generally an unrecoverable sector caused by an abrupt shutdown. The general case is a physical bad sector.

SSD

There are many forms of solid state drives, such as the most traditional SATA interface, and the M.2 interface PCI-E bus, M.2 interface SATA protocol, anyway, chaos. Especially the M.2 interface, many people can't tell whether M-Key or B-Key, its utility software knows what kind of it is.

In the software, the left interface and transmission mode are the same as the detection mechanical hard disk, and here you can clearly see what interface the SSD is using. The image of the small example is SATA, if it is the high-end PCI-E interface Will be shown here. At the same time, note that in the "supported functions", TRIM is a technology unique to solid-state drives (Devsleep is deep sleep). This TRIM instruction is a write strategy that can reduce the erasure of hard disks and prolong their life span. Then the most important part is the amount of writes. There is a constant number of reads and writes for a SSD. The SSD demonstrated by Xiao Bian is currently used for three months. A total of 2019GB of data has been written. In fact, This is very small, and it is not worth mentioning the total write lifetime of hundreds of terabytes (1TB = 1024GB). Even the total written amount of TLC chips is very impressive. However, if you are buying and selling second-hand hard drives, this part is an important basis for measuring the price of solid-state hard drives and you have to see clearly.

In fact, this software is an information query, but it can intuitively see the status of the hard disk. Of course, although mechanical hard disks and solid-state hard disks are storage devices, the technical principles are not the same, so there will be great differences when querying information. However, when you grasp the meaning of hard disk detection information, it is easy to master the basic state of the hard disk.