ssd wiki

Use the DD command in Linux to test the read/write speed of USB and SSD hard disks.Disk Drive Speed The disk drive speed is measured by the amount of read/write data per unit of time. The DD command is a simple command line tool that can read and

In SAN storage systems, Lio is an efficient tool for transforming storage devices directly into available storage resources, enabling the Iscsitarget interface and CLI to create storage devices based on file/block device/ramdisk or even loopback

Objective:This article is translated from a blog post that was involved in ZFS file system development, now Delphix company CTO, Adam Levinso (Adam Leventhal): Apfs detailed (Apfs in Detail).The Apfs file system is the latest file system that Apple

I. Category of disks Disks can be divided into ATA (IDE), SATA, SCSI, SAS, and FC disks by interface type. According to the disk chip composition, it is divided into SSD and HDD. Because the mechanical hard disk is still the mainstream configuration,

Original address: http://segmentfault.com/a/1190000002658335 XavierPlug-in with your ownIn fact, I used the oh-my-zsh nearly three months later only to know that he brought a lot of plug-ins did not open ...How do I turn it on? Find ~/.zshrc a row

tl;dr: Don ' t ever set Fsync=off, don ' t kill-9 The postmaster then deletepostmaster.pid, don ' t run PostgreSQL on network file systems.Reports of database corruption on the PostgreSQL mailing list is uncommon, but hardly rare. While a few data

A. Referencehttp://www.csdn.net/article/a/2013-12-18/309280http://gtstorageworld.blog.51cto.com/908359/1269024Http://www.searchstorage.com.cn/microsites/2014sds/index.htmlHttp://www.baike.com/wiki/%E8%BD%AF%E4%BB%B6%E5%AE%9A%E4%B9%89%E9%97%AA%E5%AD%9

Use of the smartctl command line. 650) This. width = 650; "alt =" edit "src =" http: // 192.168.1.2/images/edit.png? 1355836063 "/> Command Line instructions: Currently, all servers we use are equipped with LSI raid cards. When the disk is a SAS

This article is the second article in the series of "implementing key-Value Pair storage" Original article from Emmanuel goossaert (codecapsule.com) At the beginning of this article, I will explain the reasons for using an existing model instead

In H.264, Rate Distortion Optimization plays an important role.Formula for rdo: J (mode) = SSD + λ * R (ref, mode, MV, residual)SSD refers to the mean square sum of the difference between the reconstruction block and the source image, and λ is the