Benchmark results for Seagate Exos2X14 Dual Actuator HDDs
Hi, we ran some benchmarks with a few samples of Seagate's new HDDs that some of you might find interesting: Blog post: https://croit.io/2020/01/06/2020-01-06-benchmark-mach2 GitHub repo with scripts and raw data: https://github.com/croit/benchmarks/tree/master/mach2-disks Tl;dr: way faster for writes, somewhat faster for reads in some scenarios Paul -- Paul Emmerich Looking for help with your Ceph cluster? Contact us at https://croit.io Looking for Ceph training? We have some free spots available https://croit.io/training/4-days-ceph-in-depth-training croit GmbH Freseniusstr. 31h 81247 München www.croit.io Tel: +49 89 1896585 90
On 1/15/20 11:58 PM, Paul Emmerich wrote:
we ran some benchmarks with a few samples of Seagate's new HDDs that some of you might find interesting:
Blog post: https://croit.io/2020/01/06/2020-01-06-benchmark-mach2
GitHub repo with scripts and raw data: https://github.com/croit/benchmarks/tree/master/mach2-disks
Tl;dr: way faster for writes, somewhat faster for reads in some scenarios
Very interesting, thanks for sharing results. Price is available? k
Hi, Interesting technology! It seems they have only one capacity: 14TB? Or are they planning different sizes as well? Also the linked pdf mentions just this one disk. And obviouly the price would be interesting to know... MJ On 1/16/20 9:51 AM, Konstantin Shalygin wrote:
On 1/15/20 11:58 PM, Paul Emmerich wrote:
we ran some benchmarks with a few samples of Seagate's new HDDs that some of you might find interesting:
Blog post: https://croit.io/2020/01/06/2020-01-06-benchmark-mach2
GitHub repo with scripts and raw data: https://github.com/croit/benchmarks/tree/master/mach2-disks
Tl;dr: way faster for writes, somewhat faster for reads in some scenarios
Very interesting, thanks for sharing results. Price is available?
k _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io
Hello, according to some prices we have heard so far, the Seagate dual actuator HDD will cost around 15-20% more than a single actuator. We can help with a good hardware selection if interested. -- Martin Verges Managing director Hint: Secure one of the last slots in the upcoming 4-day Ceph Intensive Training at https://croit.io/training/4-days-ceph-in-depth-training. Mobile: +49 174 9335695 E-Mail: martin.verges@croit.io Chat: https://t.me/MartinVerges croit GmbH, Freseniusstr. 31h, 81247 Munich CEO: Martin Verges - VAT-ID: DE310638492 Com. register: Amtsgericht Munich HRB 231263 Web: https://croit.io YouTube: https://goo.gl/PGE1Bx Am Do., 16. Jan. 2020 um 10:11 Uhr schrieb mj <lists@merit.unu.edu>:
Hi,
Interesting technology!
It seems they have only one capacity: 14TB? Or are they planning different sizes as well? Also the linked pdf mentions just this one disk.
And obviouly the price would be interesting to know...
MJ
On 1/16/20 9:51 AM, Konstantin Shalygin wrote:
On 1/15/20 11:58 PM, Paul Emmerich wrote:
we ran some benchmarks with a few samples of Seagate's new HDDs that some of you might find interesting:
Blog post: https://croit.io/2020/01/06/2020-01-06-benchmark-mach2
GitHub repo with scripts and raw data: https://github.com/croit/benchmarks/tree/master/mach2-disks
Tl;dr: way faster for writes, somewhat faster for reads in some
scenarios
Very interesting, thanks for sharing results. Price is available?
k _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io
ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io
More details, different capacities etc: https://www.seagate.com/nl/nl/support/internal-hard-drives/enterprise-hard-d... MJ On 1/16/20 9:51 AM, Konstantin Shalygin wrote:
On 1/15/20 11:58 PM, Paul Emmerich wrote:
we ran some benchmarks with a few samples of Seagate's new HDDs that some of you might find interesting:
Blog post: https://croit.io/2020/01/06/2020-01-06-benchmark-mach2
GitHub repo with scripts and raw data: https://github.com/croit/benchmarks/tree/master/mach2-disks
Tl;dr: way faster for writes, somewhat faster for reads in some scenarios
Very interesting, thanks for sharing results. Price is available?
k _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io
Hi, The results look strange to me... To begin with, it's strange that read and write performance differs. But the thing is that a lot (if not most) large Seagate EXOS drives have internal SSD cache (~8 GB of it). I suspect that new EXOS also does and I'm not sure if Toshiba has it. It could explain the write performance difference in your test. Try to disable Seagates' write cache with sdparm --set WCE=0 /dev/sdX and see how the performance changes. If there is an SSD cache you'll probably see an increase in iops. Due to the nature of Bluestore and at least with an external block.db on SSD the difference is like ~230 iops vs ~1200 iops with iodepth=1. This is the result for ST8000NM0055. Also it's strange that read performance is almost the same. Can you benchmark the drive with fio alone, without Ceph?
Hi,
we ran some benchmarks with a few samples of Seagate's new HDDs that some of you might find interesting:
Blog post:
https://croit.io/2020/01/06/2020-01-06-benchmark-mach2
GitHub repo with scripts and raw data: https://github.com/croit/benchmarks/tree/master/mach2-disks
Tl;dr: way faster for writes, somewhat faster for reads in some scenarios
Paul
-- Paul Emmerich
Looking for help with your Ceph cluster? Contact us at https://croit.io
Looking for Ceph training? We have some free spots available https://croit.io/training/4-days-ceph-in-depth-training
croit GmbH Freseniusstr. 31h 81247 München www.croit.io [1] Tel: +49 89 1896585 90
Links: ------ [1] http://www.croit.io _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io
Sorry, we no longer have these test drives :( Paul -- Paul Emmerich Looking for help with your Ceph cluster? Contact us at https://croit.io croit GmbH Freseniusstr. 31h 81247 München www.croit.io Tel: +49 89 1896585 90 On Thu, Jan 16, 2020 at 1:48 PM <vitalif@yourcmc.ru> wrote:
Hi,
The results look strange to me...
To begin with, it's strange that read and write performance differs. But the thing is that a lot (if not most) large Seagate EXOS drives have internal SSD cache (~8 GB of it). I suspect that new EXOS also does and I'm not sure if Toshiba has it. It could explain the write performance difference in your test.
Try to disable Seagates' write cache with sdparm --set WCE=0 /dev/sdX and see how the performance changes. If there is an SSD cache you'll probably see an increase in iops. Due to the nature of Bluestore and at least with an external block.db on SSD the difference is like ~230 iops vs ~1200 iops with iodepth=1. This is the result for ST8000NM0055.
Also it's strange that read performance is almost the same. Can you benchmark the drive with fio alone, without Ceph?
Hi,
we ran some benchmarks with a few samples of Seagate's new HDDs that some of you might find interesting:
Blog post:
https://croit.io/2020/01/06/2020-01-06-benchmark-mach2
GitHub repo with scripts and raw data: https://github.com/croit/benchmarks/tree/master/mach2-disks
Tl;dr: way faster for writes, somewhat faster for reads in some scenarios
Paul
-- Paul Emmerich
Looking for help with your Ceph cluster? Contact us at https://croit.io
Looking for Ceph training? We have some free spots available https://croit.io/training/4-days-ceph-in-depth-training
croit GmbH Freseniusstr. 31h 81247 München www.croit.io [1] Tel: +49 89 1896585 90
Links: ------ [1] http://www.croit.io _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io
participants (5)
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Konstantin Shalygin
-
Martin Verges
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mj
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Paul Emmerich
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vitalif＠yourcmc.ru