little sas

Under aix how to find the parent device and delete view the device's parent device and sub-device 1, check a device's parent device # lsdev-Clhdisk1hdisk1Availabl... information nbsp; | nbsp; Security nbsp; in aix, how do I find the parent device and delete the parent and child devices of the device? ==================== ========================================================== ===================================1. query the parent device of a device # lsdev-Cl hdisk1hdisk1 Available 01 -08-

interface and is a new storage interface standard developed and maintained by the ANSI INCITS T10 Technical Committee (T10 Committee). Sequential mode provides faster communication speeds and simpler configurations than parallel methods. In addition, SAS supports compatibility with Serial ATA (SATA) devices, and both can use similar cables.The SAS interface uses a thinner cable with smaller connectors, sav

PMC provides cost-effective customized server hardware for ultra-large scale deployment PMC announced the first release of 16 Port 12 Gb/s SAS and 16 port 6 Gb/s sata I/O controller solutions. PMC's data center I/O Controller Product Series help OEMs and ODM to provide cost-effective customized server hardware for ultra-large scale deployment, deployment in environments such as opencompute, Windows ECs, open stack, and Scorpio plan. The port density o

4x 32 KB 8-way collection Association L1 I-Cache 4x 32kb 4-way collection Association 4x 32 KB 8-way collection Association L2 cache 4x 256kb 8-way collection Association 2x6 MB 24-way set Association L3 Cache 8 Mb 16-way collection Association - Motherboard Motherboard Model Asus p6t6 ws revolution HP North Bridge chipset (MCH) Intel x58 Intel 5400 North Bridge Chip features Intel VT-D Technology

, multitasking, large bandwidth, low CPU utilization, as well as hot Plug and so on, so the SCSI hard disk is mainly used in middle and high-end servers, high-end workstations and storage devices. The SCSI interface is currently used with 68-pin and 80-pin interface specifications. The SCSI interface is a parallel transport interface. To emphasize, SCSI this kind of hard disk basically already eliminated, use very few similar to SATA replace Pata, SCSI also must be replaced by its upgrade produc

() function. The function Spss.get () is an encapsulation of READ.SPSS (), which can automatically set many of the latter's parameters for you, making the entire conversion process simpler and consistent. First, download and install the Hmisc package (the foreign package is installed by default): > install.packages ("Hmisc") Then, use the following code to import: > Library (HMISC) MyData In this code, MYSPSS.SAV is the SPSS data file to be imported, and use.value.labels=true means that the fu

, And the endless package, the data analysis of the "console" to do more and more humane. three are indispensable, but the computational power is undoubtedly the forefront of the pioneers . The world has a small number of data and algorithms, so we can carry out preliminary statistical analysis, but still far from the creation of a new era of the degree. Only a huge burst of data, coupled with the ability to break through the bottleneck, can make the entire industry scale start to grow exponenti

Whether it's data analysis, data visualization, or data mining, everything is based on data as the most basic element. Using Python for data analysis, the same most important step is how to import data into Python before you can implement data analysis, data visualization, data mining, and so on. In this period of Python learning, we will take a detailed description of how Python obtains external data, from which we will learn about the following 4 areas of data acquisition:

readability of the Code. Therefore, the list Public class statelist { Think of a problem... If sipsession is used to save the state, do list or map really need it ?... It seems that no longer needed! Sipsession lifecycle Haha !~ It's all nonsense! You only need to set the session attribute value (held) when you receive the 182 message as a tag. When you receive the ACK message, you can judge the Ack. getsession (). whether getattribut ("flag") equals held. if yes, proxy the ACK request and

The following is the method of Baidu, fsck cautious use, in addition fuser can solve Umount encounter device busy situation Mount;d f-h Vi/etc/fstab is a number of commands that are often used when you encounter read-only and file systems But the situation I encountered the above method is invalid, is the hardware direct failure of a lot of command lost no response, file system only read but under the mount to see all is RW; After the system restart directly halt off; Check the ILO log tips h

.) 01:00.1 Ethernet controller:broadcom Corporation netxt Reme II BCM5709 Gigabit Ethernet (rev.) 03:00.0 RAID bus Controller:lsi logic/symbios Logic megaraid SAS 2108 [Libera Tor] (rev.) 06:03.0 VGA compatible Controller:matrox Electronics Systems Ltd. MGA g200ew WPCM450 (rev 0a) Note:in all the examples below, we'll be showing only partial output by picking couple of devices from the above list. 2. Dump PCI Info in Different Format If you want to

digits, with 10 transmission lines, each line only needs to transmit one digit.Theoretically, parallel transmission is very efficient, but due to physical reasons on the line, the transmission frequency cannot be too high, so the actual transmission speed is not proportional to the degree of parallelism, or even worse. (2) The serial interface refers to the serial transmission interface, which is also 0 ~ 9 10 digits. If one transmission line is used, it must be transmitted for 10 times and the

File System Knowledge SummaryWhat do I need to do to store the data for a newly purchased hard drive?First, the hard disk installed RAID, after the raid to partition, after the completion of the format to create a file system, and finally storage data.internal and external structure of the hard drive:Physical shape:Interface type:The IDE (Integrated drive Electronics) is an "electronic integrated driver".SCSI (Small computer system Interface) small computer system interface.SATA (Serial Advanced

memory via the interface.3) interface of the hard driveThe interface on the PC:IDE, SATA, STAT2, SATA3.Interfaces on the server:SCSI, SAS, FCThe IDE's English is all called "Integrated drive Electronics", or "Electronic integrated drives"Also known as ATA interface, ATA's English spelling is "Advanced technology Attachment"To differentiate SATA also called Pata,pata full name is parallel ata,pata HDD called parallel ATA hard DriveThe ATA interface ha

total) provides a prerequisite for the high load of the database system. Zheng Rui ZRI2416280S The ZRI2416280S database server is based on the S5000 chipset and is an ideal choice for high-end customers to achieve enterprise-level server performance and reliability. Its standard 2 GB FB-DIMM/ECC full buffer memory, if using a single 4 GB memory can support 32 GB of massive memory. Powerful I/O scalability of servers to meet the potential application requirements of most users. The dual-gigabit

|| ----------- + --------------- + ------- | --------------------------------------------------------- || Ceph-adm | 192.168.2.100 | adm | 2 Cores, 4 gb ram, 20 gb disk || Ceph-mon1 | 192.168.2.101 | mon | 24 Cores, 64 gb ram, 2x750 gb sas || Ceph-mon2 | 192.168.2.102 | mon | 24 Cores, 64 gb ram, 2x750 gb sas || Ceph-mon3 | 192.168.2.103 | mon | 24 Cores, 64 gb ram, 2x750 gb

the nvme protocol. The nvme protocol has been released in recent years. It aims to enable the CPU and main memory to focus on the flash devices in the Processing System by detaching the operating system kernel and driver, thus greatly improving the flash memory performance. PMC launched the first 6 GB/sec SAS/SATA and 8 GB/sec fiber rechannel controller in 2007, followed by adaptec and added 12 GB/sec SAS

have a statistical software to calculate the result ,"Analysis, how to view the image, how to view the results. After reading this, I thought it was really fun to return.3. Classic domestic statistical textbooks in "logistics regression model-Method and Application" Wang jichuan Guo Zhigang Higher Education Press. Both of them are from the perspective of sociology, and they are applied without re-derivation. Each chapter has a detailed analysis of the SAS