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
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>
> 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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