jbod

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Share Yahoo's script to view Linux system hardware Information

First, introduce a web-circulated Yahoo company once used to collect hardware information script, you can view and download hwconfig here. Download Address: Https://github.com/smilejay/shell/blob/master/sh2012/hwconfig. It executes on one of my systems as follows: The code is as follows Copy Code [Root@jay-linux test-programs]#./hwconfigSummary:qci qssc-s4r, 1 x 2.27GHz, 47.1GB/48GB 1067MHz DDR3System:qci qssc-s4rProcessors:1 (of 4) x 2.27GHz 133MHz FSB (HT enabled, c

Super-Yi Dual Opteron rack-type Server evaluation

processor, 128MB cache, You can support more modes, such as RAID 0/1/3/5/6/jbod, and can connect up to 8 SATA devices. Server installation, maintenance and management Customizer 220x-2806vs Server to provide driver CD-ROM, power cord and other accessories, we do not see any documentation, perhaps the manufacturer does not include in the delivery test products, we will further verify. From the appearance of the server, we judged that the installation

Remote disaster-tolerant solution based on storage virtualization

longer dependent on two expensive, identical disk groups. This generic service provides the foundation for creating a unified managed storage network, and allows users to select the best disk array storage to use data, select inexpensive JBOD or other low input hardware storage to replicate data. It is not necessary to require users to purchase a second set of expensive disk arrays, which solves the problem of high input in the use of high efficienc

"My Linux, I am the boss!" "The principle and implementation of logical volume management LVM

Architecture is the kernel architecture of DM device mapping, in which DM supports a wide range of technologies, including linear linear link, similar to JBOD technology, can be used to organize multiple disks into a disk, and mirror mirroring technology, The data can be backed up; snapshot is the snapshot volume technology, you can save the system a moment ago, and so on if the system error, need to recover, you can use the snapshot to recover; Mult

Shell scripts used to collect hardware information

First, we will introduce a script that yahoo once used to collect hardware information. You can view and download hwconfig here. It is executed on one of my systems as follows:View Code BASH 12345678910111213141516171819 [root@jay-linux test-programs]# ./hwconfig Summary: QCI QSSC-S4R, 1 x 000 2.27GHz, 47.1GB / 48GB 1067MHz DDR3System: QCI QSSC-S4RProcessors: 1(of 4) x 000 2.27GHz 133MHz FSB (HT enabled, 10 cores, 80 threads)Memory: 47.1GB / 48GB 1067MHz DDR3 == 12 x 4

Windows Server 2016 software-defined storage: Key features of Storage Spaces Direct

"TechTarget Chinese Original"Microsoft introduced storage Spaces Direct in Windows Server Technical Preview 2. This feature expands local storage to a highly available (HA) storage System.For example, Storage Spaces Direct supports insertion into the PCI Express bus using low-cost, low-performance, high-capacity SATA-like drives and solid-state devices such as SSD and serial storage architectures. This approach is known as nonvolatile memory Express (NVMe) or nonvolatile Storage Control Interfac

Storage Spaces Basic School III: Meeting Storage growth needs

What is Windows Server 2012 R2 Storage Spaces? What functions does Storage Spaces provide for data center and Storage management? Storage Spaces Storage space) is Microsoft's answer to Storage virtualization and software-defined Storage, allowing enterprise data centers running Windows Server 2012 and Windows Server 2012 R2 to virtualize shared Storage for configuration and management. Storage space depends on Inexpensive Disk Arrays, rather than proprietary and expensive architectures such as

Shell scripts used to collect hardware information

First, we will introduce a script that yahoo once used to collect hardware information. You can view and download hwconfig here. It runs on one of my systems as follows: ViewCodeBASH12345678910111213141516171819 [root @ jay-linuxtest-programs] #./hwconfig First, we will introduce a script that yahoo once used to collect hardware information. You can view and download hwconfig here. It is executed on one of my systems as follows:View Code BASH 12345678910111213141516171819 [root@jay-l

Get a glimpse of it on the paper. Remember to configure RAID0 for IBM X3650 M3 and install EXSi5

"title =" IMG_20130718_120319.jpg "/> 8. There are three options in new configuration: clear configuration, new configuration, and add configuration. We select new configuration to clear the old one first and then create a new one. 650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/005912G59-4.jpg "title =" IMG_20130718_120354.jpg "/> 9. Select Manual configuration and Redundancy when possible 10. Select a disk and Add to Array-> Accept DG-> next; (Note that if the d

About SAN-storage RAID group and RAID level settings & lt; some minor suggestions & gt;

affects one LUN; RAID reconstruction can be quickly restored. Poor: higher storage overhead (depending on the RAID level ). 4. No RAID level is specified. All disks are output independently (JBoD) 650) this. width = 650; "width =" 280 "height =" 139 "border =" 0 "src =" http://www.bkjia.com/uploads/allimg/131228/0154435355-6.png "alt =" "/> Excellent: no capacity loss; multiple I/O extensions to disks; distributed read/write disks; Poor: there is no

Install CentOS on IBMX3650M3

1 for EFI webBIOS provides two methods for BIOS management: WEB and command line. Select web mode 6. click start 7. configuration wizard 8.new configuration has three options: clear configuration, new configuration, and add configuration. we select new configuration to clear the old one first, create a new one. 9. select Manual configuration and Redundancy when possible 10. select a disk and Add to Array-> Accept DG-> next; (note that if the disk is JBOD

Cloudera Hadoop Administrator Ccah; developer CCA-175 Exam Outline

JBOD versus RAID, SANs, virtualization, and disk Sizing requirements in a Cluster Network Topologies:understand network usage in Hadoop (for both HDFS and MapReduce) and propose or identify key n Etwork design components for a given scenario 4. Hadoop Cluster installation andadministration (25%) Given a scenario, identify how the cluster would handle disk and machine failures Analyze A logging configuration and logging configuration file for

RAID (disk array) use

independent storage computer, with its own operating system and management tools, can run independently, theoretically the highest performance of the RAID mode;Jbod:just a Bunch of Disks;Function: The space of multiple disks is combined with a large continuous space;Free space: sum (s1,s2,...) ;Common levels: RAID-0, RAID-1, RAID-5, raid-10,raid-50, JBOD; Soft RAID implementations: MDADM: Provides management interface for soft raid;Add re

Why is deploying a Hadoop cluster a preferred hardware approach rather than a virtualization approach?

difficulties, in a single machine to develop a number of hard disk raid small scale scaling, and later, independent of the San and NAS with a lot of hard disk to do large scale scaling.hadoop is also developed on the basis of the same horizontal expansion concept. So is Hadoop using today's popular blade servers, Sans, and virtualization technologies to improve performance like traditional services? Not really First, the features of Hadoop operations. Hadoop is very sensitive to IO performance

What is the difference between the spanning and striping modes in raid?

lowest utilization of all RAID disks. RAID 0 + 1 (a technology composed of RAID 0 and RAID 1 arrays) is also known as RAID 0 + 1, a solution that combines storage performance and data security. It provides the same data security as RAID 1, and the storage performance is similar to RAID 0, but the storage cost is high. Take four hard disks as an example, that is, each hard disk is a group, each group stores the same data, and the two groups of data are split by a group of data.

Hadoop-related parameter optimization from several perspectives

HDFS File System Optimization 1. System Perspective Storage Method. namenode adopts raid1 + 0, and datanode adopts the disk group jbod mode. In the scenario of sequential file reading, such as mapreduce, you can adjust the size of the file system pre-read cache. Set noaptime and nodiratime for File Mounting to improve File System Performance 2. HDFS Parameter Optimization DFS. namenode. handler. Count (the default value is 10 and the value is 64)DFS.

What is a disk array?

" in the menu and press the Enter key to go to the "set RAID configuration" page. The RAID Controller will use a period of time to identify the hard disk. Then, move the cursor to the hard disk, press the Space key to select the disk, and press the Enter key to confirm the selection, A new window is displayed, showing the available raid mode. There are four modes: jbod (not suitable for raid), RAID 0, RAID 1, RAID 0 + 1.We certainly choose RAID 0 ". T

Disk management-RAID 0

1. What is raid0? Raid0, which divides data into several halves and writes data to multiple disks A: A1 A2 ...... Performance improvement. At least two disks are required. Merge multiple disks into a large disk with no redundancy and parallel I/O, with the fastest speed. RAID 0 is also called a zone set. It associates multiple disks to form a large disk. When storing data, the data is segmented by the number of disks and written into these disks at the same time. Therefore, RAID 0 is the fastes

Install CentOS on IBM X3650 M3

one first, create a new one. 9. select Manual configuration and Redundancy when possible 10. select a disk and Add to Array-> Accept DG-> next; (Note that if the disk is JBOD before, change it to Make Unconf Good !!!! This step is required; otherwise, the disk cannot be selected later !!!) 11. Add to SPAN-> next12. enter the raid0 option. Here, you only need to enter a select size (set the available space of raid0 in upper case). According to the gre

How LVM2 works in Linux and how to create LVM2

-modules. DM also has multiple sub-modules to complete different organization methods. For example: Linear: similar to Jbod. The storage space of multiple disks can be spliced together and used as one disk. Mirror: similar to an image. Snapshot: Like a VM, a Snapshot can retain the status of data when a Snapshot is created. A snapshot is another path for accessing the same data. (Mainly used for data backup) Multipath: multi-path. The multi-path must

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