ssd raid5

No solid-state drive, fast CPU, and then a powerful graphics card, are useless, because of the "barrel principle", the bottleneck is here ah. Today's SSD prices have fallen a lot, I remember last year I bought a 120G SSD is nearly 600 yuan, and now only need less than 400. The way I introduced the SSD and transfer system is simple (and very safe), but still need

One problem for users who want to equip their old Mac with a third-party SSD (SSD) is that the OS X system does not turn on TRIM support for Third-party SSDs. TRIM is a system-level command that allows the operating system to communicate with solid-state drives to determine which of the SSD is pleasing and not used, and is ready for erasure and replication. If th

http://blog.csdn.net/killmice/article/details/42745937 The test tool FIO is read sequentially as an example, with the following commands: fio-name IOPS-RW = Read-bs = 4k-runtime = 60-iodepth 32-filename/dev/sda6-ioengin E Libaio-direct = 1 where rw = read for random reads, BS = 4k for each read 4k, filename specifies the corresponding partition, here I am/dev/sda6, direct = 1 means the cache through Linux Test SATA Hard Drive, SAS hard drive, SSD har

Recently has been engaged in the object detection play, before using the FASTER-RCNN, the accuracy of 73.2%, the effect is good, but the recognition speed is a bit short, I use the GPU is gtx980ti, recognition speed is about 15fps. Recently discovered SSD ( Single shot Multibox detector) This paper has a good effect and speed, I have experimented with it, the speed is indeed much faster than FASTER-RCNN. The following is a two-part introduction. The f

MyISAM tables [1000000]--mysql-create-options=string additional options passed to create TABLE [] Sysbench test on SSD first:The MY.CNF configuration is as follows:[Client]Port= 3306Socket=/ssd/mysql5.5/mysql.sock[mysqld]Port= 3306Socket=/ssd/mysql5.5/mysql.sockdatadir=/ssd/mysql5.5/databack_log= 50Character-set-files

In fact, the frozen phenomenon of solid-state hard disk is not concentrated on the SSD, but the whole problem related to the hard disk, many users think that the crash itself is the problem of solid-state hard disk, we in today's article also together to analyze what is the problem of the system crash. SSD freezes cotton How to do solid state hard disk use detailed Let's take a look at the crash prob

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

Boot press F2 to enter system SetupDevice Settings650) this.width=650; "title=" 1.png "style=" Float:none; "src=" http://s3.51cto.com/wyfs02/M02/6C/24/ Wkiom1valbbdjfxbaadjrqhmegk335.jpg "alt=" Wkiom1valbbdjfxbaadjrqhmegk335.jpg "/>Integrated RAID Controller 1:dell perc650) this.width=650; "Width=" 599 "height=" 294 "title=" 2.png "style=" Width:438px;height:219px;float:none; "src=" http ://s3.51cto.com/wyfs02/m01/6c/24/wkiom1valbersd1kaahxaac6wp8851.jpg "alt=" wkiom1valbersd1kaahxaac6wp8851.jpg

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

Example one:[Email protected] ~]$ CAT/PROC/SCSI/SCSI | grep Model vendor:ata model:ocz-vertex2 3.5 rev:1.27 vendor:ata model:ocz-vertex2 3.5 Rev : 1.27Search by Google: OCZ-VERTEX2 3.5-inch Solid State Drive (firmware:1.27)[http://www.google.com.hk/search?q=ocz-vertex2+3.5 ]Example two:[Email protected] ~]$ CAT/PROC/SCSI/SCSI | grep Model vendor:slimtype model:dvd A ds8a5s rev:wc22 vendor:ata model:st31000524ns rev:sn11 Vendor:ata model:st31000524ns rev:sn1

YOLOAdvantages: Fast speed, end-to-end. The frame rate on the Titan GPU is 45fps, and the accelerated version of the frame rate can reach 155fps.Disadvantage: It is proved by practice that the algorithm has poor classification effect on small objects and close objects.Experimental resultsSsdsThe frame rate on Titan x reaches 58fps, (in the VOC2007 test, the 72.1%map at the faster r-cnn 7 fps, map 73.2%,yolo under 63.4% fps).For its principleSSD's Disadvantages reference: 78123546One-Shot detecti

1, installation, installation of solid state drive when you try to choose to plug in the SATA 3.0 socket, if your motherboard with SATA3.0 so that the transmission speed faster; 2, partitions, partitions can be the same as the normal hard disk partitions, but some to remember to check the "alignment to the number of sectors in the integer multiple", and then select 4096,4k Alignment can make read write faster. 3, using AHCI mode, we directly open the computer's Registry

SSD Demo details how to use SSDs for object detection training and validation on VOC data sets.This article describes how to use SSDs to implement the training and validation process for your own datasets, including the following:1 Labeling of datasets2 Conversion of datasets3 How to train with SSDs4 How to test using SSDs1 Labeling of datasets　Data annotations Use the Bbox-label-tool tool, which is implemented using Python and is simple and easy to u

=o_direct,size=500m,threads=24wd=wd1,xfersize=4k,rdpct=0,seekpct=100Rd=rd1,wd=wd1,sd=*,iorate=max,elapsed=5,interval=1,warmup=5,threads=24vdbenchdistribution:vdbench504Fordocumentation, see ' vdbench.pdf '.20:25:40.991created output directory '/home/vdbench_qichao/ssd_vdbench.out '20:25:41.021input argument scanned: '-fssd_param '20:25:41.021input argument scanned: '-K '20:25:41.021input argument scanned: '-ossd_vdbench.out '20:25:41.153starting slave:/home/vdbench/vdbench slavejvm-m localhost-n

　　 How to transfer the system to the solid state drive after installing the SSD System migration to SSD solid State hard Drive tutorial SSD Solid State hard disk installation system In fact, there is a very simple way, after the partition assistant upgrade 5.5, once again updated and enhanced this feature, open the latest version of the Professional edit

Apple Mac OS X 10.10.4 the way to unlock third party SSD trim What is trim? TRIM is a system-level command that allows better communication between the operating system and solid-state drives, determines which areas on the SSD are not used, and is ready to erase and write back. For solid-state drives (SSD), because of the inherent nature of flash memory, you mu

similar structure, u disk can be used as a solid-state hard disk? Now u disk prices continue to slide, the 8GB u disk most also sell to fifty or sixty Yuan, 16GB USB drive is more than 100 blocks full of streets, this and thousands of dollars of solid state drives, compared to the formation of a very large contrast. From a structural point of view, U disk and SSD have many similar places. First of all, as stored data tools, they use flash as a storag