pre-conditions:1. InstallationLSI's megacli package Megacli642. query tool for installing SCSI devices LSSCSI Apt-get Install LSSCSIsteps:1. Find the drive letter according to OsdidCeph-disk List |Grep-a 1-b 1 osd.0 | Egrep "^/dev/sd*\b" |cut-d ': '-f1 2. Find the device based on the drive letterTarget IDLsscsi | grep/dev/sdd | awk ' {print $} ' | cut-d ': '-f33. Determine if the disk is a SAS disk perform the following command to return 2./megacli-ldpdinfo-aall | Grep-a "Target id:3" |egrep ' (
Make preparations
What should I do if the system runs fast? Group raid? SSD solid state drive? No, these are all tricks. The method to be introduced today is almost ready for Windows XP to be started in an instant.ProgramLike Fei -- that is to put Windows XP into memory!What should I do if the system runs fast? Group raid? SSD solid state drive? No, these are all tricks. The method to be introduced today
Reference: http://blog.csdn.net/tianlesoftware/article/details/6009110The main types of hard disk interfaces currently available are IDE, SATA, SCSI, SAS, FC, and so on.The IDE is commonly known as the port, SATA is commonly known as the serial port, both of the hard disk is the PC and low-end server common hard disk.SCSI is the abbreviation for "Small computer system dedicated interface", which is the hard disk with this interface.SAS is the SCSI interface of the serial port. The general server
that the accuracy rate of YOLO in detecting small targets is about 8~10% than R-CNN, and the accuracy rate is higher than r-cnn in the detection of large targets. The accuracy of Fast-r-cnn+yolo is the highest, and the accuracy rate is 2.3% higher than that of FAST-R-CNN.5.4 SummaryYolo is a convolutional neural network that supports end-to-end training and testing, and can detect and recognize multiple targets in images under the premise of guaranteeing certain accuracy.6.
MethodMethod 1: By viewing/sys/block/sda/queue/rotationalWith Cat/sys/block/sda/queue/rotational, the return value of 0 is SSD, and 1 is HDD.Method 2: View by LSSCSILsscsi-list SCSI devices (or hosts) and their attributesInstanceHDD[[email protected] thatsit]# cat/sys/block/sda/queue/rotational1[[email protected] thatsit]# lsscsi[0:0:32:0] Enclosu DP bp12g+ 1.00-[0:2:0:0] Disk DELL PERC H310 2.12/dev/sda[[email protected] thatsit]#Ssds[[email protecte
Design division, Knut Grimsrud said the SATA3.0 transmission rate was 6Gbps.
Now seven years later, the speed of solid-state hard disk has changed dramatically, many excellent SSD read and write speed has reached 550mb/s, this is already the limit speed of SATA3 interface, so many manufacturers choose to develop new interface solid-state hard disk.
u.2
The U.2 interface, formerly called SFF-8639, is driven by Intel single-handedly. Ess
Tags: style blog http os using Java AR strong fileNext topic: Configuring and Deploying SSD Cloud Hosting-linode to build a Java environment 8. Installation and configuration of MySQL databaseInstallation Check if Yum has MySQL inside. yum list|grep mysql I'm using a 64-bit system, so here's x86_64 the suffix installed; yum -y install mysql-community-client.x86_64 yum -y install mysql-community-devel.x86_64 Cilent installation of the time has been
Failure phenomenon:
SSD solid-state hard disk has been gradually recognized, we serve the user community has also been the use of solid-state hard disk users, but not too much knowledge of solid-state drives, so we need to use the solid-state hard disk testing, and will detect information feedback user current status.
Solution:
We like to use Hdtune to look at the smart information of the hard drive when we test HDD. In the
SSD speed slows down cause analysis:
Because the format of the hard disk is not right, SSD hard drive to give full play to its stable speed performance, it needs to carry out 4K on it, but many people have installed the system and many software, do not want to destroy the data on the 4 K for its difficulty. There are already such tools on the Internet, but often only on their non system disk, the main disk
Tags: SSD linu mount Pre Window Profile system problem Linux systemResolve issues such as AWS mounting, resolving hangs, and disappearingThere is a difference between a disk on Linux and a window, which must be mounted on a directory, otherwise uselessThe actions on the new hard disk, SSD, and Mount to Linux are as follows :Df-h #显示目前在Linux系统上的文件系统的磁盘使用情况统计.lsblk # list block device information (volumes tha
How to change SATA mode to AHCI mode after computer installs SSD solid State drive
1, restart and press the shortcut key to enter the BIOS setup interface, and some laptops are by the side of the button to enter;
2, choose to enter the BIOS Setup;
3, switch to the configuration interface;
4, select the SATA control Mode;
5, select "AHCI";
6, after the completion of press FN+F10, save an
Transferred from: http://lanbing510.info/2017/08/28/YOLO-SSD.html
Prior to the emergence of deep learning, the traditional target detection method is probably divided into regional selection (sliding window), feature extraction (SIFT, hog, etc.), classifier (SVM, adaboost, etc.) three parts, the main problems have two aspects: on the one hand, sliding window selection strategy is not targeted, time complexity, window redundancy On the other hand, the characteristics of manual design are poor. S
In a variety of test mix scenarios, the combination of 10 (combination 10:SSD * 2, RAID 0, Xfs,wb,nobarrier,noop) has the highest overall performance, so it is the benchmark, and the comparison of other schemes, the following table is the comparison of the combinations and combinations 10:650) this.width=650; "Src=" http://dp.imysql.com:8080/files/upload_yejr_imysql/SAS_VS_SSD_MySQL_OLTP%E5%AF%B9%E6% Af%94%e6%b5%8b%e8%af%95%e8%a1%a8-20120907.png "styl
long-time problem, according to he said is because before the 360, and then the whole computer regardless of how to set the best resolution, see things are enlarged and not clear, because afraid of trouble, big thousands of of the computer, Fang teacher so always make use of! 100 More bucks!Anyway I remember Fang teacher owes me 150 soft sister currency. When I publish my essay, I choose the classification of the website, so it's awkward!There is no operating system installed this option! The c
View ssd Service Life in CentOS
Install necessary software
Yum install-y MegaCli Lib_Utils
Obtain the device id.
/Opt/MegaRAID/MegaCli/MegaCli64-LdPdInfo-aALL | grep-B 30 'solid State devic' | grep 'device id'
What I get here is 1. When smartctl is used below, 1
Smartctl-a-d sat + megaraid, 1/dev/sdc | grep Media_Wearout_Indicator
Wear Levelling Count (average number of particle writes): The last column is 0, that is, the total number of writes
After 10.8.3 is updated, trim must be enabled for ssd to solve the problem. After 10.8.3 is updated, trim must be restarted. It is easy to open a terminal. First open your terminal and enter the following command: 1. for security, this step is the backup Driver (password may be required) sudo cp-r/System/Library/Extensions/IOAHCIFamily. kext/Contents/PlugIns/IOAHCIBlockStorage. kext // System/Library/Extensions/IOAHCIFamily. kext/Contents/PlugIns/IOAH
. Click the browse button8th step. Set up a new folder from which to search for files to exclude from cloning① Select [Scan selected folder] or [scan all folders], then click [Search]. * Specify the folder to scan to scan selected folders: Scan only selected folders scan all folders: Scan all files on disk119th step. Search for files to exclude from cloning in the newly set path10th step. Select the files to exclude from the clone① continue to select the files to exclude until the text below the
The ThinkPad machine comes standard with a Sandisk solid state drive. An error is reported using the built-in detection software (Lenovo Diagnostic or LSC), as shown below:Smart Status: FailedIn some operating systems, the following error occurs:Note: the machine or hard disk has no problems during use.Impact scope:Model: ThinkPad T440, T450, T440s, T450s, X240, X250, L450, L550Affected operating systems: windows 7, windows 8, windows 8.1, and windows 10Cause analysis:Two bits in the
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