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Linux ssd electronic disk speed detection and linuxssd electronic detection Code: # Include Write test results: #./Test# Gcc ssd_test.c-o test-lpthread#./TestSSD Speed test begin!SSD4 test over!SSD0 test over!SSD6 test over!SSD1 test over!SSD5 test over!SSD7 test over!SSD2 test over!SSD3 test over!Ssd write speed: 1563.73594 MB/S (1.30968sec)SSD Speed test over! Read test results:#./Test SSD Speed test begin!SSD1 test over!SSD7 test over!

Code:#include Write Test Run Results:#./test# gcc Ssd_test.c-o test-lpthread#./testSSD Speed Test begin!SSD4 Test over!SSD0 Test over!SSD6 Test over!SSD1 Test over!SSD5 Test over!SSD7 Test over!SSD2 Test over!SSD3 Test over!SSD Write speed:1563.73594mb/s (1.30968SEC)SSD Speed Test over!Read Test Run Results:#./testSSD Speed Test begin!SSD1 Test over!SSD7 Test over!SSD3 Test over!SSD2 Test over!SSD4 Test ove

Problem Description:You have an SSD on hand and want to LLF (Low level Format). But the LLF tool displays: Media is write protected.Solution:1. Enter DiskPart as an administrator at the command prompt.2. Find this SSD3. View its property information4. Clear Properties5. Exit Diskpart C:\users\jimshu>diskpartMicrosoft DiskPart version 6.1.7601Copyright (C) 1999-2008 Microsoft Corporation.On computer:d305872Diskpart> list DiskDisk # # # Sta

Yesterday read a post, the overall summary of the next service optimization of several points, but also for these days to read the book to make an annotationOriginal link: http://www.liuhaihua.cn/archives/424955.html1 Read and write separation, access from the library, write operation access to the main library, the main library will synchronize the change data to from the library.2 Resolve write delay, increase MySQL cache, use high-performance CPU host, MySQL use physical host, use

HDFs Enable SSD storage 1. Configure the data node for HDFS[DISK]/HADOOP/HDFS/DATA,[SSD]/HADOOP/HDFS/SSDMount SSD disk to path/HADOOP/HDFS/SSD on all data nodesand ensure that the owner of the/HADOOP/HDFS/SSD path is Hdfs:hadoopdrwxr-x--- 3 hdfs hadoop 4096 Oct 17 19:10 /hadoop/hdfs/ssdRestart Data node2. Create an HDFs path using SSDshdfs dfs -mkdir /ssd3. Set the/SSD Storage policy: ALL_SSDhdfs storagepolicies -setStoragePolicy -path /ssd-poli