A "blood case" caused by a dell R420 power failure, dellr420
It is exaggerated to say that the "blood case" was written, but it took a long night to complete the operation and maintenance. As an O M engineer, it's common to get up late in the middle of a sudden Server failure. It's strange to start talking about things:
A few days ago, at around midnight, I received a message about server downtime, and then remotely used the
Last month, I tried Dell's 800 hotline and asked me about the price of a Dell machine. I thought that if possible, I would have bought a computer from Dell at school. it's not a mess to choose a machine.
However, after consulting, his machine won't satisfy me, but it is mainly expensive. So I will temporarily cancel the computation of buying a computer from him (the specific configuration of the consultati
Dell PowerEdge R720 (Xeon E5-2609/2 GB/300 GB) rack mount server CPU with Xeon E5-2609 2.4 GHz standard 1 CPU, 2 gb ecc DDR3 memory capacity, standard GB hard disk capacity.
Dell PowerEdge R720 (Xeon E5-2609/2 Gbit/300 GB)
The Dell PowerEdge R720 (Xeon E5-2609/2 GB/300 GB) server is designed with a 2U rack structure with a newly released Xeon E5-2609 proces
There are generally two ways to monitor Dell server hardware: 1, install OMSA on the operating system, write scripts to invoke the omreport command to monitor; 2. With Idrac, you can not install OMSA on the operating system, just The Snmp,zabbix on Idrac is monitored via SNMP. For operating systems that do not support Omsa and the requirement that additional software cannot be installed, SNMP monitoring is recommended and the configuration is simple
? remember once the Dell R720 server ESXI5.5 system down the wonderful experience ? Summary point: 1, do not see the reason for downtime. 2. Reset Bois for no reason. 3, do not look at the log. 4, Dell r720 server memory needs to be inserted sequentially, such as: A1,a2,a3,a4. 5, use Idrac to manage the page remotely. 6, to have their own judgment problem thinking, do not depend on everything 400. 7, do no
ResourcesDual Fault tolerantshared perc 8 Card configuration-in This configuration, there is twoshared PERC 8 cards con Figured in an active-passive cluster. Both Controllerscan access the same storage subsystem. However, only the active controllerprovides the data access. If one of the Shared PERC 8 cards fails, the othershared PERC 8 card takes control in a seamless transition. The default cachepolicy for virtual disks created in this configuration is Write-backIt may take up to minutes for t
Ubuntu8.04 and dell are silent after the recovery (resume) on the server (suspend). What is wrong with Ubuntu8.04 and dell? In fact, this is the method to cure the problem: sudo/sbin/alsaforce-reload that forces alsa to restart various driver components of the Sound Card, including the gnome sound control program. In addition, if you want to play some music while playing a movie. Please use: aossplayer name
1 newly configured Dell R730XD (with 2 Intel e5-2640 V4 CPUs, 128GB memory, H730 raid cards, 12 4TB SATA drives, 2 495W power supplies), after installing VMware ESXi 6.5.0 (d), Some virtual machines often crash and behave as if the virtual machine freezes in the vsphere client or vsphere WEB client console, the VM cannot be manipulated, and the virtual machine is restarted without responding. Sometimes logged into the ESXi console, pressing F2 or F12
since last year, the computer industry ushered in a micro-border storm, the micro-border of this exploration, not only in the aesthetic degree of a more distinct characteristics, while the visual experience also has the essence of Ascension. Following the XPS 13, the high value of the micro-border notebook, Dell has launched a new notebook: Dell Burn 7000. The machine is a "real three-side micro-border", is
Dell Notebook Reinstall system steps as follows
1, the production of a U disk, and then decompression software to the system image of the Gho file to the U disk Gho directory;
2, insert a U disk, restart the Dell notebook, in the advent of the Dell Boot screen press F12, or ESC shortcut keys;
3, in the Open boot menu, select the USB opt
Dell PE2950 Server (2*4 kernel cpu,16g memory, 6*300g hard disk) for installation of LoadRunner.
Install the Windows 2003 server operating system first on these machines.
Generally standard Dell PE2950, install win 2003 server, no problem. But I have a slightly higher configuration, the installation process has some problems, now recorded to facilitate the encounter similar problems friends.
Such a high c
Dell XPS 12-9250-R2508TB is a portable commercial book, the use of magnetic two-in-one plug-in design, from the notebook to the tablet, a second heart switch, using high-definition FHD display, flat mode support 10-point touch, both lightweight and efficient, equipped with Intel M5 processor, strong performance, Meet a variety of needs.
Dell XPS 12-9250-R2508TB
The
In a LAN environment, it is very fast to remember that the previous Dell machine installed Debian x64 through PXE.
But this time the new Dell R730, click F12 for PXE installation, but the general report can not find the installation source, such as errors, in short, very puzzled.
Then search the Internet and read the official Dell video, and finally got the inspi
Label:Translated from MoS article: Dell Pcserver,oracle DB using the Windows operating system error: ORA-8103 ORA-8103 using Windows platform and DELL servers (Doc ID 1921533.1) Applies To:Oracle database-personal edition-version 11.1.0.6 to 12.1.0.2 [Release 11.1 to 12.1]Oracle Database-standard edition-version 11.1.0.6 to 12.1.0.2 [Release 11.1 to 12.1]Oracle database-enterprise edition-version 11.1.0.6 t
: Select this option③packages>reload can7. Download the latest version of Ide,android Studio:https://developer.android.com/sdk/installing/studio.html#downloadsudo unzip android-studio-ide-135.1538390-linux.zip after decompressionChown-r User Android-studio Change permissionsCD android-studio/bin/./studio.sh RunReference blog:Http://www.cnblogs.com/sink_cup/archive/2011/10/31/ubuntu_x64_android_sdk_java.htmlhttp://www.oschina.net/question/265039_173445Http://bbs.9ria.com/thread-200667-1-1.htmlUba
Ubuntu12.0 4 Dell D620 wireless network card driver installed in an old book these two days Ubuntu12.04, found that wireless network card is not available, Google, du Niang cannot find the driver, however, we found a common method for installing a wireless network card in linux. We used ndiswrapper to virtualize windows APIs on the linux platform, and then used a driver in windows to drive the network card. There are many articles about this method on
with the root user. In this case, open the terminal window and enter the sudo passwd root command to set the root password, in this case, the user can use the root user, but cannot use the root user to log on to the GUI. Next, run the su command to switch to the root user, and then find/etc/TPD. conf file. In vi, change "AllowRoot = false" under [security] To "true". Save and restart the file so that you can log on as the root user.
Startup sequence: After Ubuntu is installed, the default syste
Zabbix monitoring of Dell's Idrac via SNMPThe original is from the Zabbix forum, the improved version from the post-attached GitHub address, Local is the finished version, added value mapping content, has been updated as a readme to the author.Please check the attachment [Template_dell_idrac_snmpv2.zip], or go to Gitlab to download the template.menu:administration->general->valuemapping->createvaluemapconfiguration ofvaluemappingnotice:1) NBSP;USENBSP;TEMPLATE_DELL_IDRAC_SNMPV2.ZBX.XML2) website
if the value of await is much higher than the value of SVCTM, the I/O queue waits too long for the applications running on the system to become slower.- C parameterIostat can also be used to get CPU partial state values:Iostat-c 1 10avg-cpu:%user%nice%sys%iowait%idle1.98 0.00 0.35 11.45 86.22avg-cpu:%user%nice%sys%iowait%idle1.62 0.00 0.25 34.46 63.67Common usageIostat-d-K 1 #查看TPS和吞吐量信息 (disk read and write speed in KB) iostat-d-M 2 #查看TPS和吞吐量信息 (disk read and write speed in MB) iostat-d-x-k 1
Title: Two people take turns in the n*n of the parallelogram lattice into black and white two-color pieces,If the black side can give the creation of a continuous line from 1~n lines then black wins, otherwise white wins.Analysis: Graph theory, search. Use DFS or FloodFill solution to find solutions that can reach the low end from the top.Description: Target 600 question ╮(╯▽╰)╭.#include UVa 260-il gioco dell ' X
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