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Groups > linux.debian.user > #230909
| From | brainfart@posteo.net |
|---|---|
| Newsgroups | linux.debian.user |
| Subject | Re: new harddrive degraded speed |
| Date | 2021-01-21 03:20 +0100 |
| Message-ID | <BzxJL-760-7@gated-at.bofh.it> (permalink) |
| References | <Bzv5f-5pH-3@gated-at.bofh.it> <BzwkG-65G-11@gated-at.bofh.it> <BzwNH-6uF-3@gated-at.bofh.it> <BzwXn-6xH-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 2021-01-20 07:26 PM, Dan Ritter wrote: > brainfart@posteo.net wrote: >> >> 6tb drive at 3.0 gbs >> root@hc4:~# hdparm -t /dev/sda >> >> /dev/sda: >> Timing buffered disk reads: 406 MB in 3.01 seconds = 134.83 MB/sec >> >> >> 2tb drive at 6.0 gbs >> root@hc4:~# hdparm -t /dev/sdb >> >> /dev/sdb: >> Timing buffered disk reads: 436 MB in 3.00 seconds = 145.27 MB/sec > > Both of these are substantially under 3Gb/s. The fact is, not > only do different spinning disks read and write data at > different rates, the rates change across the same disk. > > For what it's worth, the WD Red 6TB disk you've got is a > notoriously slow drive, for a CMR. It has a fairly high latency > and runs at 5700RPM. It's entirely likely that your 2TB disk is > actually faster. > > You're not likely to notice the 10MB/s difference in actual > usage, though. It will be dominated by seek times for > interactive usage, and humans are bad at paying attention to > longer times without a clock in front of them. > > -dsr- it's just curiosity i haven't perused kernel code in many years being retired i guess i have the time to scratch an itch :) thanks
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new harddrive degraded speed brainfart@posteo.net - 2021-01-21 00:30 +0100
Re: new harddrive degraded speed deloptes <deloptes@gmail.com> - 2021-01-21 01:20 +0100
Re: new harddrive degraded speed brainfart@posteo.net - 2021-01-21 01:40 +0100
Re: new harddrive degraded speed "Alexander V. Makartsev" <avbetev@gmail.com> - 2021-01-21 19:00 +0100
Re: new harddrive degraded speed Dan Ritter <dsr@randomstring.org> - 2021-01-21 01:40 +0100
Re: new harddrive degraded speed Felix Miata <mrmazda@earthlink.net> - 2021-01-21 01:50 +0100
Re: new harddrive degraded speed brainfart@posteo.net - 2021-01-21 02:20 +0100
Re: new harddrive degraded speed Dan Ritter <dsr@randomstring.org> - 2021-01-21 02:30 +0100
Re: new harddrive degraded speed brainfart@posteo.net - 2021-01-21 03:20 +0100
Re: new harddrive degraded speed Stefan Monnier <monnier@iro.umontreal.ca> - 2021-01-21 06:50 +0100
Re: new harddrive degraded speed Mark Allums <maa@allums.com> - 2021-01-21 17:40 +0100
Re: new harddrive degraded speed Dan Ritter <dsr@randomstring.org> - 2021-01-21 18:10 +0100
Re: new harddrive degraded speed Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-21 19:50 +0100
Re: new harddrive degraded speed brainfart@posteo.net - 2021-01-21 20:20 +0100
Re: new harddrive degraded speed Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-21 20:40 +0100
Re: new harddrive degraded speed Stefan Monnier <monnier@iro.umontreal.ca> - 2021-01-21 22:20 +0100
Re: new harddrive degraded speed David Christensen <dpchrist@holgerdanske.com> - 2021-01-21 22:10 +0100
Re: new harddrive degraded speed basti <mailinglist@unix-solution.de> - 2021-01-21 22:40 +0100
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