40g transceiver

Install the Windows 7 Flagship, C disk divided into 40G, installed system drivers and loopholes used 11G, but also 29G more out. Do not calculate the virtual memory, just installed the computer generally said to install Windows 7 at least 40G space, really so? The new computer hard drive did not change only 80G. C is more than the number of other dishes can be used. Expert answers: Approximately 30~35g's

Recently, a machine equipped with Rhel5.3 40G memory has an Oracle database, the database of the SGA set to 20G, when running a business, a peak of business, find swap frequent swap, CPU 100%,load is very high, basically reflected in insufficient memory. The number of connections at this point is about 600. Calculated by memory: Each connection consumes roughly 5M of memory, so 600 connections only occupy 3G memory, SGA memory 20G, operating system me

fileRecords the binary log file name of the backup database at the point of Backup, the write location of the log, If you are backing up from a library, you also record the binary log files and write locations that were synchronized to the main library at the time of the backup Each table has two backup files: DATABASE.TABLE-SCHEMA.SQL Table Structure File Database.table.sql Table Data File If you slice a table file, multiple backup data files are generated, and you can specify

In the second type and case of desktop virtualization, we explored two architectures for desktop virtualization, hostedvirtual Desktop (VDI), and published Desktop/app. In this article, we analyze the two desktop types of VDI in depth, Persistent and nonpersistent. One definition: Persistent Desktop: Typically, each user is assigned a proprietary virtual desktop. User data and personal settings are saved in the virtual machine. Non Persistent Desktop: a virtual machine is usually selected fro

a MPSL VPN system for the company in Beijing, Shanghai, Guangzhou, Fuzhou and other places in 11 offices to provide MPLS VPN access services. Hu Xiangdong introduced the program, including local access, remote access and regional center, such as the typical access mode. After the project project through acceptance, Tatsu group will realize the internal network seamless connection, has a fast and secure network environment, and can further expand the external network, convenient and partners, su

Tags: comparing field name performance created description RMS emp_table style 5.7Background: The author's source data a table about 7000多万条, data size 36G, index 6G, add up table space has 40g+, similar table has 4, a total of more than 200 million Database MySQL, engine for InnoDB, version 5.7, server memory 256G, physical memory several T, hardware parameters of the leverage, but processing these data trampled a lot of pits, because For not doing t

Analysis of the low memory problem of Oracle with large concurrent connections under Linux 2010-01-28 20:06:21 Category: OracleA recently installed Rhel5.3 40G memory machine has an Oracle database, the database's SGA is set to 20G, when running a business, when a business peak, found swap frequent exchange, CPU 100%,load is very high, the basic embodiment of memory shortage. The number of connections at this time is around 600. According to the calcu

Label:Sparse file (sparse files) is not an attribute of SQL Server. It belongs to an attribute of the NTFS file system of Windows. If the data in a large file contains a large amount of "0 data" (which should be viewed from the binary), such a file can be called a sparse file. If you look at this file from a two-dimensional diagram, you will find that the file is like many holes, and that is the origin of "sparse". The problem with this kind of file is wasted space. For example, if you are using

Label:Selection:32-bit memory is a bottleneck, already 64-bit era. Use 64-bit CentOS6 and 64-bit Oracle 11g R2In virtual machine installation, the network is set up by hostonly modeNote: Network adapter to set up ICS (Internet Connection Sharing) to the VMware network Adapter VMnet1So for virtual machines, the gateway is 192.168.137.1,IP address please also set in 192.168.137.0/24 segmentHDD 40G, Memory 2G1. Download software1.1. CentOS 6 (x86_64)http

Label:Selection:32-bit memory is a bottleneck, already 64-bit era. Use 64-bit CentOS6 and 64-bit Oracle 11g R2In virtual machine installation, the network is set up by hostonly modeNote: Network adapter to set up ICS (Internet Connection Sharing) to the VMware network Adapter VMnet1So for virtual machines, the gateway is 192.168.137.1,IP address please also set in 192.168.137.0/24 segmentHDD 40G, Memory 2G 1. Download software1.1. CentOS 7 (x86_64)h

directory as a point of entry, the disk partition in this directory, through this directory to read the partition data.[Email protected] ~]# fdisk-lWarning:fdisk GPT support are currently new, and therefore in an experimental phase. Use at your own discretion.disk/dev/sda:53.7 GB, 53687091200 bytes, 104857600 sectorsUnits = sectors of 1 * MB = bytesSector size (logical/physical): bytes/512 bytesI/O size (minimum/optimal): bytes/512 bytesDisk label TYPE:GPTDisk identifier:0f1c34e5-5c72-417f-9b2d

100M partition, mount point for:/boot 5, divided into one partition for 1024M, Mount point for:/opt 6, divided into a 4000M partition, mount point is:/tmp 7, divided into a 10G partition, mount point for:/home 8, divided into a 20G partition, mount point for:/usr/local 9, "Use all available space" divided into one area, the mount point is:/var 2 below the 160G hard disk for the server to do the partition and mount point: (This example is the physical machine hard disk, the installation of

Dell R710 Series servers (for VMware virtual hosts), Dell MD 3200 Series storage (for storing virtual machine files), VMware ESXi version 5.5, causing a virtual machine not to start properly due to accidental power outages, When you view the configuration file for a virtual machine, you find that the configuration file for this virtual machine is missing all but the disk files. The XXX-FLAT.VMDK disk files and xxx-000001-delta.vmdk snapshot files also exist. After looking for a VMware engineer t

, as long as VG has space, then all LV under VG can enlarge capacity arbitrarily, until VG is full, VG is full, you can add PV to VG to increase the capacity of VG UNIX: Df-g used to view the LV Linux: Df-h used to view the LV Steps: 1. Create the Pv-2. Add PV to vg-4. Create lv-5 in VG. Format the LV partition-6. Mount the LV partition to a directory using Create PV [root@z1~]# pvcreate/dev/sdb1 Create pv/dev/sdb1 to make PV the first primary partition of the SCSI second hard drive [root@z1~]

The Little devil has just come back from a field trip. Also finally can restore the update ~ today and you share is how to Mount Aliyun's "Data Hard Disk" (Aliyun opened after the default only mount the "system disk"), to this so-called "data disk", because the micro-demon belongs to the early users of Aliyun, Once in the previous promotions to order this extra data plate (40G), but has not been mounted, unfortunately this data disk once ordered can n

Sorted out from the network. 1. Make a mirror Burn ubantu image to USB drive (I use UltraISO burn, mirrored download address: Link: http://pan.baidu.com/s/1bndbcGv password: QSMB) 2. Compressed space for Ubantu installation Using the compression of the Windows system itself, compress a space for ubantu. (I compressed 40G, the compression is free, do not format and other operations.) When installing Ubuntu in Repartition 3. Install Ubantu system will m

in testing is to prepare the (Prepare) phase, generate the data files used for the test, and generate a data file that is at least larger than the memory. If the data in the file can be completely put into memory, the operating system caches most of the data, causing the test results to fail to reflect IO-intensive workloads. First create a DataSet with the following command:Sysbench--test=fileio--file-total-size=40g PrepareThis command creates a tes

Description of the virtualization Data recovery failure:Dell R710 Series servers (for VMware virtual hosts), Dell MD 3200 Series storage (for virtual machine files), VMware ESXi version 5.5, the accidental power outage that prevents a virtual machine from starting properly, When you view the configuration file for a virtual machine, you find that the configuration files for this virtual machine are all missing except for the disk files. The XXX-FLAT.VMDK disk file and the XXX-000001-DELTA.VMDK s

packet from the ge-2/3/0 port; the RT2 ge-1/1/11 port transceiver counter unchanged, indicating that the RT4 ping package does not reach RT2. RT4: Interface ge-2/3/0 Input packets: 25 Output packets: 8246 RT2: Disp int gi 1/1/11 Input: 0 bytes, 0 packets Output: 1536 bytes, 24 packets Case 2: Only one Pigtails are required to be connected, that is, RT4 sends the pigtails in the RT2 receiving direction; RT2 ge-1/1/11 port up, RT4 ge-2/3/0 port down,

, in fact, the two kinds of RJ-45 port is completely the same as the port itself, however, the network circuit structure corresponding to the port is different, so it cannot be connected at will.2. the AUI port is the LAN interface used to connect to the coarse coaxial cable. It is a D-type 15-pin LAN interface, this is one of the most common ports in the ring or bus network. The router can connect to the 10Base-5 network through the coarse coaxial cable tra