Case:After the two hard disks of the HP server are on, the server is restarted and cannot enter the system; the customer’s server’s use environment is poor, so it is placed on the warehouse floor and blows with two fans. Solution:Detecting the No. 0 disk found that the hard disk was abnormal, the firmware could…
Case:There are 6 hard disks for customers, four 500G, RAID5, and two 2T hard disk RAID0. The server is lost because of the sudden power off, and the RAID card raid information is lost. Solution:The engineer analyzed the two groups of RAID, analyzed the original RAID parameters, and directly reorganized.
Case:The customer originally discovered that the#4 hard disk was dropped, and the new hard disk replacement was purchased by themselves but because the architecture was not familiar with the original#1 hard disk, causing the system to collapse … Send to the data recovery center data recovery. Solution:After understanding the reasons, the engineer of the data…
Case:A advertising company client suddenly stuck to death when the computer was used. Restarting the computer could not identify RAID normally. Customers recovered in another house before the data recovery center, but the recovered things could not be opened. Solution:After receiving the hard disk from the data recovery center, the data recovery tool was received…
Case:Magnetic Solution:After the engineer opened the market, it was found that the magnetic head was damaged, and the data recovery engineer was required to open the data to replace the magnetic head with the same type of hard disk, and used special tools to restore data
Background Initialization
Where the initialization process of a disk array takes place in the background, allowing use of a disk array within seconds instead of several hours. Also known as Immediate RAID Availability.
Benchmarks
A set of conditions or criteria against which a product or system is measured. Computer trade magazine laboratories frequently test and compare several new computers or computer devices against the same set of application programs, user interactions, and contextual situations. The total context against which all products are measured and compared is referred to as the benchmark. Programs can be specially designed to provide measurements for a particular operating system or application.
Berkeley RAID Levels
A family of disk array protection and mapping techniques described by Garth Gibson, Randy Katz, and David Patterson in papers written while they were performing research into I/O systems at the University of California at Berkeley. There are six Berkeley RAID levels, usually referred to as RAID Level 0 through RAID Level 5. See also RAID Levels.
Bridge RAID Controller
A device appearing as a single ID in a Storage Area Network (SAN), but which bridges to multiple devices, typically used to control external RAID subsystems (compare to Internal PCI-based RAID subsystems, see Internal RAID Controller). A bridge RAID controller is often referred to as an External RAID Controller.
Bootable array
An array which includes system disk files and allows a server to boot from the array while protecting the network operating system disk — and other data on the array — from drive failure.
Cold swap Power must be switched off before the removal or insertion of a component.
Case:Customer a very important Word (version is Office2003) files are stored in the Golden 4G prefabricated disk. The specific operating users have been described in detail. The current situation is to report an error after opening. Solution:After analyzing this file, the content of the file has changed, and the binary structure of Word files does…
HDD Printed circuit board (PCB) with board number 100513491 is usually used on these Seagate hard disk drives: ST9160310AS, 5SV, WU, PN 9EV132-188, FW 0303, Seagate 160GB SATA 2.5″ Hard Drive; ST9320320AS, 5SX, WU, PN 9EV134-030, FW DE04, Seagate 320GB SATA 2.5″ Hard Drive; ST9160310AS, 5SV, WU, PN 9EV132-285, FW 0303, Seagate 160GB SATA 2.5″…
Is Hybrid Sleep on Windows 7 the same as on Windows Vista? As I understand it so far, it is like sleep, except the content of the RAM is also saved onto the hard drive, so when there is power loss or power outage, the state of the computer is not lost. Will that involve saving all…
