p400 raid

[Data recovery failure description] A Web server, brand for assembly, the use of Tyan (Taian) motherboard, AMD cpu*4, 4 pieces of 68-pin SCSI hard disk RAID0 composed of storage system (heard 2007 years spent 50,000 yuan to buy, and the use of RAID0, this professional degree is really not flattering). Operating system for Linux, important data for MySQL database and Web site data files. Due to power damage (50,000 yuan to buy equipment unexpectedly no redundant power supply), replaced the pow

Tags: mdadm direct PVC tool hard drive cannot store system groupLinux Disk Management Management LVM logical volumes and RAID volumes make up the management disks and partitionsIn a Linux server, when the partition plan for an existing hard disk does not meet the requirements (for example, the rest of the root partitionIf there is too little space to continue installing a new System program), you need to re-plan the partitions on the hard disk andAdju

RAID overview RAID is short for RedundantArrayofInexpensiveDisk. with this technology, multiple disks can be integrated into one array and can be used as a single disk. The RAID disk array can be used to improve data read/write efficiency and data redundancy (backup) based on different technologies. when a disk in the array fails, data can be restored from other

Create soft RAID 1 under CentOS6.5What is RAID? RAID, Redundant Array of Independent Disks, formerly known as Redundant Array of Inexpensive Disks, is short for hard disk arrays. The basic idea is to combine multiple relatively inexpensive hard disks into a hard disk array group, so that the performance can reach or even exceed a hard disk with a high price and h

Understanding raid Disk Arrays In recent years, hard disks have been greatly improved in terms of capacity, access speed, and reliability. However, this improvement still keeps up with the development requirements of processors, making hard disks a bottleneck in computer systems. In order to meet the high-speed disk access requirements of application systems, many measures have been taken. In 1988, Professor D. A. Patterson of UC Berkeley proposed a l

I. What is Raid? Raid was called in the Early Days: Redundant Arrays of Inexpensive Disks Fault-Tolerant cheap disk Array. Now it is called Redundent Array of Independent Disks and fault-tolerant Independent disk Array. This is a storage module that combines multiple hard disks and features fault tolerance. It can be simply understood as a combination of several small hard disks into a large hard disk with

(1) RAID introduction: Redundant Arrays of independent disks (RAID, RedundantArrayofIndependentDisks), formerly known as Redundant Arrays of cheap disks (RAID, RedundantArrayofInexpensiveDisks), or hard disk arrays. The basic idea is to put multiple relative... (1) RAID introduction: Redundant Array of Independent Disk

A. RAID Technology detailedRAIDis Englishredundant Array of independent Disksthe abbreviation, translated into Chinese means"Redundant array of independent disks", sometimes referred to as a disk array (Disk Array). Simply put, RAID is a combination of multiple separate hard disks (physical hard disks) in different ways to form a hard disk group (logical hard disk), providing higher storage performance tha

RAID 0, also known as stripe (strip, string column) or striping, represents the highest storage performance in all RAID levels. RAID 0 improves storage performance by distributing continuous data to multiple disks for access. In this way, the system can execute data requests on multiple disks in parallel, each disk executes its own data request. This type of para

Data security is one of the most important issues in the use of computers. Generally, Hard Disk Mirroring technology is used in the server environment to achieve dual data backup. We can also use this technology in Linux. In Linux, Raidtools can be used to mirror not only two hard disks, but also soft RAID 0, RAID 1, and RAID 5. It is soft

For an NT-core operating system such as Windows 2000/XP, the installation of Plug and Play hardware can be scheduled to occur after the system is installed (that is, the system is installed into the GUI-mode stage), but the driver installation for SCSI and RAID cards may be different. If you need to install the operating system on a RAID or SCSI hard drive, their drivers must be properly loaded before the s

First, the purpose of the experiment1. Mastering the implementation method of soft raid in Linux system;2. Master the configuration process of RAID5;3. Be familiar with RAID, 5 characteristics through experiment.Second, the contents and steps of the experiment 1. Create a Linux in VMware.2. Add the Linux to 4 virtual disks (select SCSI type. 2G).3, the use of Madam in Linux to create RAID5,

Linux performance tuning 5: tuning an important role in soft raid storage. RAID independent redundant disk arrays are classified into two types: raid card-based hard raid (hardware implementation, high speed, suitable for large applications), system-based soft raid (generall

In Linux, how does one set RAID 10 to ensure high-performance and fault-tolerant disk input/output? (1) RAID 10, also known as RAID 1 + 0 or image strip) array combines the features of RAID 0 and RAID 1 to provide high-performance, fault-tolerant disk input/output operation

Recently, the customer needs to change the server. The customer sent the purchased server to a very small server. But when I saw it, it was a big, long, wide server, similar to the server in the data center, later, Mr. Mi gave a general explanation: This is a blade server. A blade server is a low-cost server platform that can be inserted with multiple card-type server units in a standard-height rack-mounted chassis to achieve HAHD (High Availability and High Density, designed for special applica

Sometimes you want to know that there are a few disks on the server, if you do not do raid, you can simply use the fdisk-l can be seen.But I did raid, so I couldn't see it. So how do I check the raid on the server?Software RAID: can only be viewed by the Linux system itself 　 Cat/proc/mdstat 　 You can see information s