lsi megaraid

MegaRAID is an LSI command-line RAID management tool, we used to configure the raid through the Web page to configure, the steps are cumbersome, and the configuration will need to restart the operating system. The MegaRAID tool allows us to configure management raid at the command line, which is highly efficient and very awesome to use. This approach is a dream d

The company has several servers installed on esxi5.0 virtual machines. They used to use common desktops, now we have purchased a dedicated server and installed the LSI 8708 sas raid card (the server's onboard RAID card esxi is not supported). Now we need to migrate the virtual machine. The best method would have been to mount the array. Now the virtual machine is moved to the array and then to the new server. However, the company's array is full and t

the server with Ubuntu system is turned on, but to see the status of the server RAID10, the LSI megacli Disk array management tool can be viewed by the following steps:1. Add Update sourcesudo vim/etc/apt/sources.list//add at the end Deb Http://hwraid.le-vert.net/ubuntu Precise Main sudo apt-get update//updating sourceNote: Some warnings can be ignored, but if you are prompted with a GPG error, you need to add a certificate

equal sign, that is, the left side of the equal sign is equivalent to the right side of the equal sign. In other words, we only changed the original expression A without losing any information. It's like 24 = 2*3*4. Therefore, if LSI directly uses SVD, not only R is uncontrollable, but R is likely to be too large to achieve dimensionality reduction, in fact, this operation not only does not reduce the dimension, but also consumes a lot of computing t

1. Install all SAS hard drive, boot up 2, the post process appears Ctrl + C prompts, press CTRL + C into LSI Logic Config Utility ... Start SAS configuration 3, select the "SAS 1068" channel, press. 4, RAID select "Raid Properties", press RAID Properties: Creating, managing arraysSAS topology: View Physical disk and RAID configuration informationAdvanced Adapter Properties: View advanced attributes and their restore Defaults (this action do

VMware, on the official blog today, said the use of PVSCSI storage adapter driver can improve 10-30% performance for high IO VMs. See Http://blogs.vmware.com/performance/2010/02/highperformance-pvsci-storage-adapter-can-reduce-cpio-by-1030.html We know that the default type of SCSI controller when creating VMS is the LSI Logic. Now under vsphere 4, you can select a new type PVSCSI (the option is VMware paravirtual), and this type can significantly

When a new technology or product emerges, everyone is eager to know whether or when the new product will completely replace the original product. In fact, many products have a "long tail effect". For example, when a disk backup occurs, people think that the tape will soon exit the market, but today the tape is still the main force of backup and archiving; after the emergence of SSD, many people think that it will eventually replace the mechanical hard disk, but at least from now on, it is not ea

About the LSI 2208 array card is not enabled by default JOBD mode, how to configure as JBOD mode1, the server boot press ctrl+y into the BIOS preboot CLI interface2. Enter the command:$ Adpgetprop Enablejbod-aall (can be viewed to JBOD is disabled)Adapter 0:jbod:disabledExit Code = 0x0Enable JBOD$ adpsetprop enablejbod 1-aall (enable array card JBOD mode)Adapter 0:set JBOD to Enable success.Exit Code = 0x03, restart the server and press Ctrl+h to ente

With the development of LSI, the computer entered the fourth generation development. The fourth generation computer takes the large scale integrated circuit as the logic element and the memory, causes the computer to the miniaturization and the massive two direction development. From the first generation to the fourth generation, the architecture of the computer is the same, which is composed of controller, memory, arithmetic and input, called von Neu

Root tree enumeration and Its Application in LSI analysis and identification and Program Arrangement simplification (Enumeration problemsCompleted by a student as a graduation thesis. I wrote the Application Section) Root tree Enumeration Requirement: write a program that includes {n} and {Non-standard root tree} A 1-1 correspondence is established between all elements. The following table lists natural numbers.N = 1... 18Correspond

1. If you have multiple raid on a LSI array card, you may report hard disk error (CentOS 6.6) If you need to install the system on the first raid, or you can create a raid on the system first. 2. Hot Plug the consequences: If the hard drive does not fail, RAID is normal, in the system running state to hot plug hard drive, will cause raid different steps, the entire RAID may appear various strange problems, For example: 1. HDD display off-line, red a

Latent Semantic Indexing is an algorithm that relies heavily on SVD. This article is reproduced from the summary of Wu Jun's beautiful mathematics and the reference document mathematics in machine learning. ------------ In natural language

"-r02" Dell "" PowerEdge R610 USB UHCI Controller "00:1f.0" ISA Bridge "Intel Corporation" "82801IB (ICH9) LPC Interface Controller"-r02 "Dell" "PowerEdge R610 82801IB (ICH9) LPC Inte Rface controller "00:1F.2" IDE Interface "Intel Corporation" "82801IB (ICH9) 2 port SATA Controller [IDE mode]"-r02-p8f "Dell" "PowerEdge R610 SATA IDE Controller" 01:00.0 "Ethernet Controller" "Broadcom Corporation" "NetXtreme II BCM5709 Gi Gabit Ethernet "-r20" Dell "" PowerEdge R610 BCM5709 Gigabit Ethernet "0

multicolumn secondary indexes. At the end of the test, TOKUDB's insertion rate remained at 14,532 Inserts/second whereas InnoDB had dropped to 1,607 ins Erts/second. That's a difference of over 9x.Platform:centos 5.6; 2x Xeon L5520; 72GB RAM; LSI MegaRAID 9285; 2x 256GB Samsung 830 in RAID0highest COMPRESSIONCompression is an always-on feature of Tokudb. We tested InnoDB compression with the values of key_

feature is enabled to prevent the write Back and no RAID card battery situation, the system power loss results in the final, considering the IDC room situation we have turned on the battery discharge state also forced to open the cache policy to solve the short-time on the write performance of the excessive gap to see if the current mode, the following is the write ThrougForced Open method/opt/megaraid/megacli/megacli64-ldsetprop Cachedbadbbu-lall-aa

. Some information about the exported discovery is empty. command to check this machine, it is indeed a null value. Investigation. An error was found. View the details of the interface: sudo smartctl-d scsi-a/dev/sda The array card needs to be installed special tools MegaRAID view. Download: Ftp://download2.boulder.ibm.com/ecc/sar/CMA/XSA/ibm_utl_sraidmr_megacli-8.00.48_linux_32-64.zip. (If the connection is not available, or if it i

The company has a Dell R720 server, want to install Xen, the result of loading when asked me to select the disk, it appears that the disk RAID does not recognize the problem. Find Dell official for detailed model,megaraid SAS 9265-8i is LSI's product, go to LSI official website http://www.lsi.com China Station: http://www.avagotech.cn /support/download-search Download Understand, first go to Baidu

Under Ubuntu, you can manage hardware disk arrays by installing the LSI MegaRAID megacli command line tool. The specific installation steps are as follows.1. Add MegaRAID Source:Modify/etc/apt/sources.list to add at the endDeb Http://hwraid.le-vert.net/ubuntu Precise MainThen execute:Apt-get UpdateApt-get Install MEGACLI megactl

Objective:Dell Next-generation 13G server R630, R730, T430 .... such as the product has a RAID card does not support the Redhat 5/centos version of the operating system, this article will take the T430 server as an example to demonstrate the method of installing the REDHAT5 version.First, drive download1 Dell 13G service organ network array driver not supported redhat5 system, because dell The array card uses lsi The chip, so here to Sp

/LinuxMegaCLI8.07.10/inflating:8.07.10_MegaCLI_Linux/LinuxMegaCLI8.07.10/MegaCli-8.07.10-1.noarch.rpm5. Installationcd/root/8.07.10_MegaCLI_Linux/Linux\MegaCLI\8.07.10/rpm-ivhMegaCli-8.07.10-1.noarch.rpmPreparing...###########################################[100%]1:MegaCli###########################################[100%]11187blocks6. Find related commandsfind/-name"MegaCli*"/root/MegaCli-8.07.10-1.noarch.rpm/opt/MegaRAID/MegaCli/opt/