Language Selection

English French German Italian Portuguese Spanish

SSD vs. SATA RAID: A performance benchmark

Filed under
Hardware

Solid state drives (SSD) have many advantages over traditional spinning-platter hard drives including no noise, low power and heat generation, good resistance to shock, and most importantly, extremely low seek times. To see just how much an SSD might improve performance, I used Bonnie++ to benchmark a contemporary SSD as it might be used in a laptop computer.

Without going into details, SSDs may use single-level cell (SLC) or multi-level cell storage, with SLC drives typically offering better performance.

SSDs offer different read and write speeds, form factors, and capacity. I looked at several models from Mtron. The performance of the 3.5-inch and 2.5-inch form factors is identical, so you might as well get the 2.5-inch drive because you can use it inside laptops as well as desktop machines. Mtron's Imation-branded drives use the MOBI brand for lower-end "personal" drives and PRO branding for the professional (faster) drive. The professional drive is reported to be about 10% faster in write and 20% better in read performance. The reported seek time is identical.

I used a 32GB 2.5-inch MOBI drive for these tests. Although the professional drive is slightly faster for transfers, it is also about 25-35% more expensive. Because the following tests focus on seek time, you can extrapolate a 10-20% difference to get an idea of the speed of the professional drive.

The 32GB SSD currently costs around $500. By contrast, a 750GB SATA drive can be had for about $130, which means that you can have about 2TB of usable conventional hard disk "spinning storage," or about 60 times as much space as the SSD, protected against a single disk failure in a RAID-5, for the same price as the 32GB SSD.

More Here




More in Tux Machines

Leftovers: Software

Emulation or WINE

Fedora: The Latest

  • New "remi-php71" repository
  • PHP on the road to the 7.1.0 release
  • First round of Fedora 24 Updated Lives now available. (torrents expected later this week)
    As noted by my colleague on his blog the first round of F24 Updated Lives are now available and carry the date 20160720, Also as mentioned last week on his blog F23 Respins are not going to be actively made, however we and the rest of the volunteer team will field off-off requests as time and resources permit. We are considering a new/second tracker for the Updated Spins but as of today there are only .ISO files available at https://alt.fedoraproject.org/pub/alt/live-respins [shortlink] F24 Live-Respins . The F24 respins carry the 4.6.4-200 Kernel and roughly ~500M of updates since the Gold ISOs were released just 5 weeks ago. (some ISOs have more updates, some less)

Leftovers: Ubuntu

  • Snappy Packaging Happenings In The Fedora, Arch Space
    This week Canonical hosted a Snappy Sprint in Heidelberg, Germany where they worked to further their new package management solution originally spearheaded for Ubuntu Touch. This wasn't an Ubuntu-only event, but Canonical did invite other distribution stakeholders. Coming out of this week's event were at least positive moments to share for both Arch and Fedora developers. The Arch snaps package guy made progress on snap confinement on Arch. Currently when using Snaps on Arch, there isn't any confinement support, which defeats some of the purpose. There isn't any confinement support since it relies upon some functionality in the Ubuntu-patched AppArmor with that code not yet being mainlined. Arch's Timothy Redaelli has got those AppArmor patches now running via some AUR packages. Thus it's possible to get snap confinement working on Arch, but it's not yet too pleasant of an experience.
  • PhantomJS 2.1.1 in Ubuntu different from upstream
    At the moment of this writing Vitaly's qtwebkit fork is 28 commits ahead and 39 commits behind qt:dev. I'm surprised Ubuntu's PhantomJS even works.
  • Ubuntu 16.04.1 LTS released
    Ubuntu 16.04 is a LTS version of Ubuntu.Now Ubuntu team has announced the release of it's first point release,Ubuntu 16.04.1.This first point release includes many updates containing bug fixes and fixing security issues as well and as always what most of users want from a distribution and most of distributions tries to perform,Stability.This release is also well focoused on stabilty as Ubuntu 16.04.