Solidigm

RStup · 01-17-2017

Hi,we've got a couple of servers, each with one of the DC P3700 2TB AIC drives and we see a serious performance regression after a couple of hours.Initially, before we run the application tests, we quickly tested the I/O performance using `dd` writin...

RStup · 01-28-2017

Hi Carlos,we just usedfor i in `seq 1 100`; do time sh -c "dd if=/dev/zero of=/nvme-disk/scratch/dd-${i} bs=32k count=262144" ; donefor i in `seq 1 100`; do time sh -c "dd of=/dev/null if=/nvme-disk/scratch/dd-${i} bs=32k iflag=direct count=262144" ;...

RStup · 01-24-2017

Yea - that documents definitely helps. Thanks for the link!I still got no idea what happens in that stack though. At least, the kernel panic after an `isdct delete ...` does not happen with recent Linux kernels but with 3.12.59 in SLES's 12.1.Another...

RStup · 01-19-2017

Hi Carlos,I cannot find any special Intel NVMe driver in the downloads. The ZIP files only contain Windows or VMWare drivers and the PDF refers to the standard Linux kernel sources, which is probably exactly the driver we currently use.

RStup · 01-18-2017

Hi Carlos,thanks for your quick reply!I'll ask the ops guys to install the Intel NVMe driver.We already looked at the SMART details and nothing jumped out to us.Let's see how it works with the NVMe driver.BTW: Is it sufficient to over provision the d...

RStup · 01-18-2017

Hi,1: SLES 12 SP1 (3.12.59-60.45)2: standard kernel driver (nvme.ko)3: 8DV1LP11 and 8DV1LP10 (with 8DV1LP11 interrupt coalescing is disabled, with 8DV1LP10 it's not)4: Lenovo x3550 M55: `dd` and `hdparm`. We also ran some fio and bonnie++ tests befor...

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Serious performance regression with DC P3700 2TB AIC drive

Re: Serious performance regression with DC P3700 2TB AIC drive

Re: Serious performance regression with DC P3700 2TB AIC drive

Re: Serious performance regression with DC P3700 2TB AIC drive

Re: Serious performance regression with DC P3700 2TB AIC drive

Re: Serious performance regression with DC P3700 2TB AIC drive