Path: csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: ray carter Newsgroups: comp.sys.raspberry-pi Subject: Re: Raspberry Pi 1Tbyte hard drive kit Date: 16 Sep 2015 19:23:54 GMT Lines: 45 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Trace: individual.net E4V9VAbjhvuDyyejAhVA2AZD7g/hZ2Su/arVF1Kwchi+HpTztk Cancel-Lock: sha1:7sTaYFd/+zuk8A5iKB90kV/HLNI= User-Agent: Pan/0.139 (Sexual Chocolate; GIT bf56508 git://git.gnome.org/pan2) Xref: csiph.com comp.sys.raspberry-pi:9656 On Wed, 16 Sep 2015 18:59:46 +0100, James Harris wrote: > "David Taylor" wrote in message > news:mstrpp$9vn$1@dont-email.me... >> On 10/09/2015 22:56, James Harris wrote: >>> FYI, there is a Western Digital 1Tbyte hard drive kit for the >>> Raspberry Pi >>> >>> http://liliputing.com/2015/09/wd-pidrive-is-a-1tb-hard-drive-kit-for- the-raspberry-pi.html > > ... > >> Thanks for that, James. I've ordered one as well - "just in case". > > Mine has arrived. If anyone is interested, initial findings follow. > > The new drive is currently sitting underneath the Raspberry Pi going > through a read-only badblocks scan. The first 10% of the 1Tbyte drive > took an hour so I expect the whole scan to take 10 to 15 hours. > > The kit came with a clear instruction sheet and was easy to set up. The > power adapter came with slide-on adapters for UK 3-pin and euro 2-pin > sockets. > > There is a four-way cable which connects USB and power to drive and RPi. > Maybe these are standard but, if not, it might be hard to replace if it > got damaged. > > The drive has a white LED at the back. As with many LEDs these days it > is bright enough that I had to turn it away out of sight. > > I wasn't sure where a USB drive would appear in the device hierarchy but > it showed as /dev/sda. > > In terms of performance, if my calculations are right the 2.5" drive is > running at about 27Mbyte/s and it was about the same in write mode. > While it is scanning the disk the Pi2 CPU is 70% idle and 25% in IO > wait. The other 5 to 10 percent is mainly taken by usb-storage and > badblocks. > > James I've ordered one as well. I'm looking forward to checking usb3 speeds with my main desktop.