Case:You can recognize the hard disk in BIOS, but you can’t enter the system.Customers take measures to discover the problem and remove the hard disk from the notebook with software scanning and found a large amount of red XX.Then send it directly during the data recovery. Solution:After the data recovery engineer received the disk sent…
Case:The computers bought by Mr. Yang a few years ago made a sound of sounds when using the computer recently, and did not want any more. In the end, the hard disk did not recognize the disk, and the data inside could not be found. Solution:Get the data recovery center. After the testing of the…
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1. An access control method for a hard disk, comprising the steps of: (A) partitioning the hard disk into primary and secondary partitions; (B) in response to a write command from a host terminal for storing write data in an addressable space found in the primary partition of the hard disk, (i) creating a recovery file that includes a write time, an address of the addressable space, and recover information including a starting data found in the addressable space of the hard disk during the write time, and (ii) storing the write data in the primary partition at the address of the addressable space, and the recovery file in the secondary partition; and (C) in response to a recover command from the host terminal, (a) retrieving the recovery files from the secondary partition, the write time in each of the retrieved recovery files being not earlier than a recovery time associated with the recover command, and (b) based on the contents of the recovery files retrieved in sub-step (a), restoring the primary partition to the starting data initially found therein during the recovery time.
2. The method of claim 1, wherein, in sub-step (ii), the address of the addressable space, the write data and the recovery file are stored in a buffer prior to storage in the hard disk.
3. The method of claim 1, wherein the recover information further includes the write data.
4. The method of claim 1, wherein, in sub-step (b), restoring of the primary partition is performed in a chronological order of the write times in the retrieved recovery files starting from one of the retrieved recovery files having a latest write time.
5. The method of claim 1, further comprising the step of reporting a total storage capacity of the hard disk as being equal to that of the primary partition in response to a capacity inquiry command from the host terminal.
6. An access control module for a hard disk that is partitioned into primary and secondary partitions, said access control module being responsive to write and recover commands from a host terminal, and comprising: a processor; a first interface adapted to connect said processor to the host terminal; a second interface adapted to connect said processor to the hard disk; a command interpreter coupled to said first interface for interpreting the write and recover commands; and a recovery file creator coupled to said processor and said command interpreter; wherein, in response to the write command for storing write data in an addressable space found in the primary partition of the hard disk, said command interpreter enables said recovery file creator to create a recovery file that includes a write time, an address of the addressable space, and recover information including a starting data found in the addressable space of the hard disk during the write time, and further enables said processor to store the write data in the primary partition at the address of the addressable space, and the recovery file in the secondary partition; and wherein, in response to the recover command from the host terminal, said command interpreter enables said processor to retrieve the recovery files from the secondary partition, the write time in each of the retrieved recovery files being not earlier than a recovery time associated with the recover command, and based on the contents of the recovery files retrieved by said processor, to restore the primary partition to the starting data initially found therein during the recovery time.
7. The access control module of claim 6, further comprising a buffer coupled to said processor, said processor storing the address of the addressable space, the write data and the recovery file in said buffer prior to storage in the hard disk.
8. The access control module of claim 6, wherein the recover information further includes the write data.
9. The access control module of claim 6, wherein said processor restores the primary partition in a chronological order of the write times in the retrieved recovery files starting from one of the retrieved recovery files having a latest write time.
Sometimes I need to work on EXTREMELY large text files. 200-300 megs or more. My favorite text editor on my MacBook Pro is TextMate. However, TM chokes on very large text files. Even ones around the 100MB mark. Is there a text editor that can handle such files for Snow Leopard? Thanks! Solution: Vim….
I would love to be able to have my tmux window title automatically renamed to prompt_command, ps1 or just the hostname of a machine I ssh to. having 9 windows opened labeled “ssh” is really useless. Doing sysadmin work I open new screens and ssh around to much to manually rename them. One thing I…
All of our new Parallel ATA (PATA) hard drives and new Serial ATA (SATA) hard drives are optimized for performance, we do not have a utility that can quiet them down.
While modern drives are extremely quiet, every disc drive makes a certain amount of noise while running. Normally, the faster the drive motor spins, the higher pitched the resulting sound will be.
It is also normal for the drive to make sort of a “chattering” or “clicking” sound while it is reading and writing data.
However, if the sound coming from the area around your drive has recently changed or is an excessive grinding or clanking noise, this may indicate a physical problem with the drive.
Noise from the cooling fans in the power supply are often mistaken as hard drive noise. To isolate whether the noise is coming from the drive or one of the fans, you can issue a “spin down” command through software. The Seagate SeaTools for DOS diagnostic has an acoustical spin down test.
If the sound goes away, then the sound was produced by the drive. If the sound remains, then the drive is not the cause of the sound.
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Case:Mr. Liu’s hard disk fell to the ground under the conditions of power off, and then the box was installed and the computer found that there was only one partition inside. Solution:Mr. Liu went online to find the data recovery company. He learned that he had a long qualification in the data recovery industry and…
Case:The customer hosting system is ESX4.1, and the bottom layer of the storage is RAID5 of 5 450GB SAS disk group. There are 3 virtual machines deployed.This system has a heavier load, and one of the virtual machines deploy a usey friend ERP system, which uses the SQL Server 2005 database.Due to the heavy load,…
