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2. Linux host planning and disk partitioning

Floppy drive /DEV/FD[0-7] is now largely unused Printer /dev/lp[0-2] (25Pin)/DEV/USB/LP[0-15]USB Mouse/keyboard /DEV/INPUT/MOUSE[0-15] General-purpose/dev/psaux (PS/2 interface)/dev/mouse (current mouse) Cdrom/dvdrom /DEV/SCD[0-1] Universal/DEV/SR0[0-1] (general, CentOS more common)/dev/cdrom (current CDROM) Tape drive /DEV/HT0 (IDE Interface)---basic elimi

SQL Server BI step with step SSIS 4

This article supporting source code The last time we did not implement the data in Excel and the data in the database to consolidate, there is an update, does not exist that is inserted. This is mainly about several methods to realize: 1. Using the Lookup 2. Use the Execute SQL task to invoke the stored procedure 3. Use script Component to implement 4. Use the merge statement (SQL SERVER 2008) 5. Use the last time we used the merge to achieve 6. Use third party component

PHP file type MIME comparison table (comparison full) _php Foundation

; ' application/x-pkcs12 ',' PGM ' => ' Image/x-portable-graymap ',' php ' => ' Text/plain ',' Pko ' => ' Application/ynd.ms-pkipko ',' PMA ' => ' Application/x-perfmon ',' PMC ' => ' Application/x-perfmon ',' PML ' => ' Application/x-perfmon ',' PMR ' => ' Application/x-perfmon ',' PMW ' => ' Application/x-perfmon ',' PNG ' => ' image/png ',' PNM ' => ' Image/x-portable-anymap ',' Pot, ' => ' application/vnd.ms-powerpoint ',' ppm ' => ' image/x-portable-pixmap ',' pps ' => ' Application/vnd.ms-

Version Control in MicroStrategy

MicroStrategy doesn ' t support Versioning. BTW, There are two types of versioning in MicroStrategy. Source control (what I ' m taking about over here) and slowly changing Dimension (SCD). Lots of clients have put requests to microstrategy to have this feature the version control for schema object or at least a Ttributes. In short the answer for this question are NO and I would never want MicroStrategy to have this features. Such A feature request is

ListView Example of horizontal sliding (horizontal sliding) in Android _android

The use of horizontal Listview-horizontallistview Android ListView The default is vertical sliding, due to the requirements of the project, the need for ListView is horizontal sliding. There are many ways to do it, but one of the better ways is to encapsulate a control by itself, using the same way as ListView. Need to improve the place: get to the size of the picture is not processed. The original size of the picture is displayed on the interface. In order to better display the effect, should

Use of mandatory access control mechanism in FreeBSD 5.0 and Source code Analysis (1)

This article mainly describes the new important security mechanism in the FreeBSD 5.0 operating system, that is, the use of mandatory access control mechanism (MAC) and source code analysis, including mandatory access control framework and multilevel security (MLS) strategy. This section describes some of the things that you should do with the MAC framework and the MLS strategy, and how to use them effectively. Mandatory access control (acronym MAC) is an important way to implement operating sy

Comparison of common devices in Linux

Tags: mouse width device News put use IDE class SCSI Install install files in linux scsi/sata/usb HDD /d EV/SD[A-P] USB Flash disc /dev/sd[a-p] (same as SATA) virti/o interface /dev/vd[a-p] (used in virtual machine) floppy machine /DEV/FD[0-1] printer /dev/lp[0-2] (25 needle printer) /dev/usb/lp[0-15] (USB Interface) mouse /dev/i

Windows Utility Scripts

Organize a few more command tool scripts that are used on everyday windows.Delete all files in directory and directory@echo onCD/D E:\testFOR/R%%s in (., *) do rd/q/s%%s\ new FolderExitREM Deletes all the specified folders under a directorySecond, automatic compression after deletion@echo offxcopy d:\inetpub\4fweb\* D:\Inetpub\taosf.bak\/sCD \cd c:\program FilesCD winrarRar.exe a-ag-r-m5-df D:\DB_back\hjl_taosf.rar D:\Inetpub\taosf.bak\PauseThree, aut

Signal Processing Circuit for ZZ Infrared Focal Plane Array

processing method on the same substrate of the detector is called the single-chip IRFPA infrared processing method, while the infrared detector (IRD) is prepared on different substrates respectively, then, the hybrid IRFPA is formed by reinstallation and interconnection of the primary column. Infrared Detectors (IRD) have different types, such as photovoltaic type (PV) Antimony indium IRD, light-conducting type (PC), hgcadmium, PBS, PbSe, phsnteird, metal silide (pd2si, ptsi, irsi), two-step sb

Mime Type (httpcontext. response. contenttype) List

Application/X-msmetafile WMF Application/X-msmoney Mny Application/X-mspublisher Pub Application/X-msschedule SCD Application/X-msterminal TRM Application/X-mswrite WRI Application/X-netcdf CDF Application/X-netcdf NC Application/X-perfmon PMA Application/X-perfmon PMC Ap

Oel6.x IBM v3500 storage multi-path Configuration

. The above was originally intended to use the udev method to configure the Oracle grid disk, but it was not successful. Finally, the configuration was successful using the ASM disk. 650) This. width = 650; "style =" border-bottom: 0px; border-left: 0px; border-top: 0px; border-Right: 0px; "Title =" image "border =" 0 "alt =" image "src =" http://img1.51cto.com/attachment/201407/17/703525_14056139008hpe.png "Height =" 270 "/> You can collect numbers manually. 650) This. width = 650; "style =" bo

C # single-piece design pattern

. /// What method is used to initialize static members? /// First, a simple static member, such as a value type, is completed using the member initialization statement; /// Second, static member Initialization is complex, or an exception may occur. You can use a static constructor to complete the initialization. /// Public sealed class Singleton { Private Static readonly Singleton instance; Static Singleton () { Instance = new Singleton (); } /// /// Private constructor /// Singleton () { } /

Gitlab5.0 does not send email

After Service gitlab restart is used to restart the service, the email will not be sent. Remember that everything is normal after gitlab5.0 is installed. Sendmail has been installed in the system and functions properly. Check production. log and find no email sending record. Check the system again. Sudo-SCD/home/git/gitlabsudo-u Git-H bundle exec rake gitlab: Check rails_env = Production Error found: Checking sidekiq... running? ... No try fix

Simple configuration of Multipath in Linux

command is run, dm devices after link aggregation are displayed in the system, and corresponding devices are generated under the/dev/mapper/AND/dev/mpath/directories.View the multipath Topology# Multipath-llAnother important file is/var/lib/multipath/bindings. The file contains the correspondence between the disk alias and the wwid. A typical example is as follows:Mpath0 3600508b4000c3af700008000002d0000 (5) Pay attention to the problem that the multipath will also generate the corresponding dm

Data Warehouse practice based on Hadoop ecosystem-advanced Technology (17)

Annual_customer_segment_fact table to confirm that the initial load was successful.Select A.customer_sk CSK, a.year_sk Ysk, Annual_order_amount amt, segment_name sn, band_name bn From Annual_customer_segment_fact A, Annual_order_segment_dim B, Year_dim C, annual_sales_order_fact D where A.segment_sk = B.segment_sk and A.year_sk = C.year_sk and A.customer_sk = D.customer_sk and A.year_sk = D.year_skcluster by CSK, Ysk, Sn, BN;The query results are

Configure multi-path in Linux

. Set boot and check whether the installation package is normal: Chkconfig -- level 345 multipathd onLsmod | grep dm_multipath [Root @ RKDB01 Server] # chkconfig -- level 345 multipathd on[Root @ RKDB01 Server] # lsmod | grep dm_multipathDm_multipath 58969 0Scsi_dh 42561 1 dm_multipathDm_mod 102417 4 dm_mirror, dm_multipath, dm_raid45, dm_log[Root @ RKDB01 Server] # 3. Configure multipathd to make it work normally. edit/etc/multipath. conf and open the following content: Defaults {Udev_dir/devPo

Implementation of MultiPath software in Linux

-- device =/dev/sda 3600508b1001030353434363646301200 4. Uncomment and modify the blacklist section within the/etc/multipath. conf file to include The scsi id of the local disk on the system. Once complete, save the changes made The multipath. conf file. Blacklist { Wwid 3600508b1001030353434363646301200 Devnode "^ (ram | raw | loop | fd | md | dm-| sr | scd | st) [0-9] *" Devnode "^ hd [a-z]" } 5. Start the multipath daemon. # Service multipathd sta

Newtonprincipia _ the centripetal force of the Moving Object

line BC,The second time period is completed, and the object is found in C, which is in the same plane as the triangle ASB.Connection SC. Because Sb and CC are parallel, the area SBC is equal to the area SBC, so it is equal to the area SAB.Similarly, if the centripetal force has successively played a role in C, D, E, and so on,Allows objects to draw straight lines such as CD, de, and EF in their respective time segments on the same plane.The area SBC, SCD

Introduction to Linux File System

description/dev/stdoutfd/1symbolic standard output file descriptor /dev/stderrfd/2symbolic standard error file descriptor/dev/nfsdsocksyssymbolic is only required by the iBCS-2/dev/x0rnullsymbolic only for the iBCS-2. [note]/dev/x0r is Recommended links We recommend that these connections exist on all systems: Brief description of Link Target link types/dev/CORE/proc/kcoresymbolic for backward compatibility/dev/ramdiskram0symbolic for backward compatibility/dev/ftapeqft0symbolic for backward c

The practice of data Warehouse based on Hadoop ecosystem--Advanced technology (III.)

surrogate key for the Pa_customer_dim table is the surrogate key for the customer dimension, and the month dimension surrogate key for the Month_dim tables does not come from the date dimension. 3. Modify the regular load Regular_etl.sql fileNeed to increase the PA Customer dimension processing, here just after loading Customer_dim simple overload PA Customer Dimension Data, the modified Regular_etl.sql file content is as follows:--Set variable to support transaction set Hive.support.concu

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