Just an update - maybe will help others
I've downloaded and ran Intel firmware update ISO
Although the tool confirmed firmware was current ( no update necessary) ,
after I rebooted, the performance was similar with the other 3 servers

Odd but.. nothing is/was making sense

Steven

On Thu, 25 Oct 2018 at 12:32, Steven Vacaroaia <ste...@gmail.com> wrote:

> Thanks for suggestion
> However same "bad"server was working fine until I updated firmware
> Now, all 4 server have the same firmware but one has lower performance
>
> I will try what you suggested though although, as I said, same server with
> same NVME had good performance before updating server firmware
>
> Thanks
>
> On Thu, 25 Oct 2018 at 12:20, Martin Verges <martin.ver...@croit.io>
> wrote:
>
>> Hello Steven,
>>
>> You could swap the SSDs from the hosts to see if the error is migrating.
>>
>> If it migrates, I would appreciate that the affected SSD simply offers
>> less performance than the others. Possibly an RMA reason depending on
>> what the manufacturer guarantees.
>> If not, the system must be further searched for possible sources of error.
>>
>> --
>> Martin Verges
>> Managing director
>>
>> Mobile: +49 174 9335695
>> E-Mail: martin.ver...@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
>>
>>
>> 2018-10-25 18:06 GMT+02:00 Steven Vacaroaia <ste...@gmail.com>:
>> > Hi Martin,
>> >
>> > Yes, they are in the same slot - also I checked
>> >      the BIOS and the PCI speed and type is properly negotiated
>> >      system profile ( performance)
>> >
>> > note
>> > This happened after I upgrade firmware on the servers - however they all
>> > have the same firmware
>> >
>> > BAD server
>> > lspci | grep -i Optane
>> > 04:00.0 Non-Volatile memory controller: Intel Corporation Optane DC
>> P4800X
>> > Series SSD
>> >
>> > GOOD server
>> > lspci | grep -i Optane
>> > 04:00.0 Non-Volatile memory controller: Intel Corporation Optane DC
>> P4800X
>> > Series SSD
>> >
>> >
>> >
>> > On Thu, 25 Oct 2018 at 11:59, Martin Verges <martin.ver...@croit.io>
>> wrote:
>> >>
>> >> Hello Steven,
>> >>
>> >> are you sure that the systems are exact the same? Sometimes vendors
>> >> place extension cards into different PCIe slots.
>> >>
>> >> --
>> >> Martin Verges
>> >> Managing director
>> >>
>> >> Mobile: +49 174 9335695
>> >> E-Mail: martin.ver...@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
>> >>
>> >>
>> >> 2018-10-25 17:46 GMT+02:00 Steven Vacaroaia <ste...@gmail.com>:
>> >> > Hi,
>> >> > I have 4 x DELL R630 servers with exact same specs
>> >> > I installed Intel Optane SSDPED1K375GA in all
>> >> >
>> >> > When comparing fio performance ( both read and write), when is lower
>> >> > than
>> >> > the other 3
>> >> > ( see below - just read)
>> >> >
>> >> > Any suggestions as to what to check/fix ?
>> >> >
>> >> > BAD server
>> >> > [root@osd04 ~]# fio --filename=/dev/nvme0n1 --direct=1 --sync=1
>> >> > --rw=read
>> >> > --bs=4k --numjobs=100 --iodepth=1 --runtime=60 --time_based
>> >> > --group_reporting --name=journal-test
>> >> > journal-test: (g=0): rw=read, bs=(R) 4096B-4096B, (W) 4096B-4096B,
>> (T)
>> >> > 4096B-4096B, ioengine=psync, iodepth=1
>> >> > ...
>> >> > fio-3.1
>> >> > Starting 100 processes
>> >> > Jobs: 100 (f=100): [R(100)][100.0%][r=2166MiB/s,w=0KiB/s][r=554k,w=0
>> >> > IOPS][eta 00m:00s]
>> >> >
>> >> >
>> >> > GOOD server
>> >> > [root@osd02 ~]# fio --filename=/dev/nvme0n1 --direct=1 --sync=1
>> >> > --rw=read
>> >> > --bs=4k --numjobs=100 --iodepth=1 --runtime=60 --time_based
>> >> > --group_reporting --name=journal-test
>> >> > journal-test: (g=0): rw=read, bs=(R) 4096B-4096B, (W) 4096B-4096B,
>> (T)
>> >> > 4096B-4096B, ioengine=psync, iodepth=1
>> >> > ...
>> >> > fio-3.1
>> >> > Starting 100 processes
>> >> > Jobs: 100 (f=100): [R(100)][100.0%][r=2278MiB/s,w=0KiB/s][r=583k,w=0
>> >> > IOPS][eta 00m:00s]
>> >> >
>> >> >
>> >> > many thanks
>> >> > steven
>> >> >
>> >> > _______________________________________________
>> >> > ceph-users mailing list
>> >> > ceph-users@lists.ceph.com
>> >> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>> >> >
>>
>
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