host ssd

What is a solid state drive and how long is the SSD life?SSD refers to the use of flash memory chip composed of SSD SSD, is the use of flash flash memory particles as a storage unit, no longer using traditional mechanical storage methods, the use of

The use case is simple, I want to use both SSD disks and SATA disks within the same machine and ultimately create pools pointing to SSD or SATA disks. in order to achieve our goal, we need to modify the crush map. my example has 2 SATA disks and 2

From: http://yblog.org/archive/index.php/11734 The biggest difference between an SSD and a general traditional hard drive is that its memory-to-life ratio is limited, and the fast Memory (flash memory) in the same data area) SSD memory uses a

OneView with AS SSD benchmarkIncludes 4 aspects of test (sequential read/write, 4K Random read/write, 64 thread 4K read/write, seek time) As SSD's main test, but also the most common on the Internet to get test results, is its main interface

4K corresponds to 4096HDD Mode:First, let the SSD run in AHCI mode:AHCI, the full name Advanced host controller Interface, which is the high-level hosting controllers interface, is more suitable for SSD SATA storage device communication protocols

recently re-spread on the database, the company's core database every day IO full, in the study with SAS 16*RAID10, or RAID10 ssd*6, or FIO;the principle, no raid-5 for database; eh; the root of all evil ;No.2 principle, most of the time, the

The use of SSD hard disk is becoming more and more common, its powerful performance can help the computer to improve the system and software running speed, so by many users, but a lot of computer novice for how to install SSD hard disk still have

Failure phenomenon: Some of the ThinkPad preinstalled mSATA SSD shipments do not have the Expresscache software installed, resulting in the inability to use the mSATA SSD as a cache. Impact Range: -The above problems may occur on the following

1 Mechanical HDD Performance Test 1.1 sequential read performance testFigure 1.1 Mechanical hard drive sequential read testThe above is the mechanical hard disk in the sequential reading of the performance test, the test shows that the average

An LVM cache1 for the SSD as a caching scheme. ObjectiveRecently, due to the need for work, some SSD cache-related knowledge was contacted. The so-called SSD cache is the use of fast device (such as SSD), to slow device (such as mechanical hard disk)