when a second hard drive is damaged in raid. This is the system crashes, data loss, the site can not be accessed.
Dedicated servers with a hard disk rack, the server can be hot-swappable SCSI hard drives without shutting down the computer, or you can replace the hard
Summary of processing process
1. After changing the bad hard disk, the system recognizes the primary, the original main disk is invalid, if the replacement of the old disk will be inserted into the system will cause confusion, resulting in the system, dial out is useless.
2.smart error does not prompt, this time is using the System test program (boot F10) that measured out the error.
3. Two
The hard drive's bad road is divided into two kinds: logical bad way and physical bad way. The logic bad way is the soft bad road, mostly is the software operation and the use
Improper cause, can use the software to repair; the physical bad way is the true physical bad way, it indicates the hard disk's surface track
caused physical damage, most of which can not be repaired by software, only by changing th
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
Commissioning experience-hard drive U-DishWith the development of embedded device capabilities, with the need for storage devices: a large amount of data information needs to be stored. Need to dump data, USB flash drive upgrade function and so on.In the process of using storage devices, we encountered a number of problems, but also summed up some experience:1. S
Symptom: This summer, the author upgraded the original machine, purchased the I845GL motherboard and P4 Celeron 1.8GHz CPU. To save money, the original monitor and 20GB 5400rpm hard drive are retained and the chassis and power supply are configured with more than 100 yuan. The machine started to run normally, and one months later I found that the hard
. Unfortunately, this method has failed to be declared after many tests. Under the helpless, only the most complicated replacement method was used to check. So disconnect the power, remove the hard drive, and get a friend's home check to make sure the problem is on the hard drive
Try to fix the system first. Please refer to the following article! How can I fix bad hard drive channels? First, check whether the hard drive's bad track is a logical or physical bad track. The method is very simple. Press "F8" when the computer is started and select "command prompt only" to enter the DOS mode. The operating system of this method must be Windows
powerless.Usage formatsubst [disk] [path] replaces the disk character with the specified path, which will be used as a driveSecond, subst/d to remove the substitution [example] c:\dos>subst a:c:\temp? Replace a disk with a C disk temp directoryC:\>subst A:/d? Remove Replacement SUBST [drive1: [Drive2:]path]SUBST drive1:/d drive1: Specifies the virtual drive to which you want to assign a path.
[Drive2:]path
Have a lot of friends ask me the hard drive of the notebook can change? The answer is certainly can change.
But the notebook hard drive replacement upgrade is not like the desktop, basically buy a piece to change, of course, it depends on your motherboard and
850EVO500GB SSD can let you get rid of HDD become a dream, without the HDD noise, faster. At present, the Samsung 850EVO500GB solid-state hard disk in Jingdong mall price of 1699 yuan, save enough money users can consider.
Samsung 850EVO500GB Solid State Drive
Samsung 850EVO500GB SSD is the 840 series in the same capacity of the replacement model,
1. Try to restore BIOS default settings
A verifying DMI Pool Data error occurs when a new hardware is replaced or if the memory read or write parameter is set incorrectly, or if the hard drive mode setting is incorrect, try to restore the BIOS defaults, or optimize the BIOS settings as appropriate.
2. Hard drive Da
Software Introduction +
Software Name: Vsubst (Virtual hard drive)
Software version: v1.6
Software Nature: Free software
Applicable platform: WIN9X/NT/2000/XP
Official homepage: http://home.tiscalinet.ch/t.bigler/
Software Introduction: VSUBST is a DOS under the SUBST 32-bit graphical interface version, more powerful, I believe that familiar with DOS friends will remember it. You can virtual any folder into
separate disks. When one of the RAID5 disk data is damaged, the remaining data and the corresponding parity information are used to recover the corrupted data. RAID5 disk array data loss for a number of reasons, or a RAID controller failure, or a sudden power outage caused by the RAID information error, may be RAID5 a hard disk error, not timely replacement, wait until the second
Failure diagram:
Reason Analysis:
1, the physical hard drive has an incorrect master boot record (MBR);
2, the basic input/output system (BIOS) did not detect the hard drive;
3, the hard disk was damaged;
Reminder: Some third party programs or disk damage can a
articles are searched on the Internet. Why should I write it? It is mainly for the differences between RHEL5 and redhat9 and AS3 Installation. In addition, there is no Chinese version of the RHEL5 Documentation Manual. It may be difficult to read the Installation Guide, so. (If you are anxious to check the installation part, skip the following steps to check the installation part .)
Common installation methods:
1. CD installation (the simplest and most intuitive, but not suitable for large-sca
Although the speed of Microsoft's replacement is very fast, the speed of the release of the new system is also very fast, and even has been released to the WIN10 version, but for many users, the best system currently available in the market, or more than the 64-bit Win7 flagship download, after all, this is a relatively perfect, has been relatively stable, And the system, which has been remedied in many ways, is naturally much better than the newly re
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