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Questions tagged [nvme]

112 questions
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2 answers

How to bind spdk driver to NVMe device if root filesystem is mounted there?

I am trying to use SPDK in Ubuntu 20.04 (Linux kernel 5.4.0) to run storage applications. My NVMe SSD is allocated as below: $ lsblk ... nvme0n1 259:1 0 1.5T 0 disk ├─nvme0n1p1 259:2 0 512M 0 part…
Sadman Sakib
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1 answer

How to blink or identify NVMe drives connected to an LSI 9500 tri-mode controller

we have the following setup in Supermicro server: LSI 9400 -> expander -> 10 x HDD LSI 9500 -> expander -> 2 x NVMe |------------| |-----------| | LSI 9400 | |--------------| ----->| HDD x 10 | |------------|…
Patkos Csaba
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Intel S2600JF server: Processor PCIe Link Speed menu in the BIOS is missing

i have a Intel 4 node server with S2600 JF motherboard per node (older, DDR3 RAM, E5-2600 v1 and v2). I want to insert a NVMe pcie card (with two drives) that requires bifurcation. Based on the description of the motherboard, there is a menu item in…
Laszlo Malina
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3 answers

NVMe disk problems - smartctl 0x2002 status

My NVMe disk works but it is very slow compared to what it was. I benchmarked it 6 months ago at 2000MB/s using fio, the exact same test now is giving me 350MB/s I ran smartctl but it's giving a 0x2002 status. Is my disk broken? Can it be repaired…
GCPuser
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DELL r630 + NvMe M.2->PCie : Cannot boot Ubuntu installed on M.2 NvMe drive via. PCie adapter

I have plugged in a PNY XLR8 500GB M.2 NvMe drive in a Delock PCIe card and stuck it in Riser 3 on my Poweredge r630 - Although the drive doesn't show up anywhere in BIOS, I could boot the Ubuntu installer from a USB thumb drive and the installation…
Arni J
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How to derive bytes written from SMART's host_write_commands?

Using either smartctl 7.0 or nvme 1.7, I get the following data from the SMART log data_units_written : 350,371,149 host_write_commands : 2,974,115,785 Via smartctl, the first line also shows [179 TB], which is…
Gaia
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Is there ready S.M.A.R.T monitoring toolkit for NVME disks (exporter,source,board)?

I already found node_exporter and grafana board for HDD S.M.A.R.T. Can You please get advice or url for ready exporter or other toolkit? I'm trying to wrote my own "messy" text exporter for prometheus, but I think that there must be ready…
Kein
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Can't scale write bandwidth on Linux with Intel Optanes

I have a computer with 3 Intel Optane drives and iotop shows that sequential write to each one separately achieves ~2.2 GB/sec. I suppose that simultaneous writing on all three would result in ~6.6 GB/sec. But in reality I got only 3 GB/sec if I try…
John Smith
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ASUS HyperX M.2 x4 only the first device is visible under Ubuntu

I have a Dell T320 with an ASUS HyperX M.2 x4 PCI-e card (in a PCI-e 3.0 x16 socket), and two Samsung 970 PRO in it (in slot 1 and slot 2 of Hyper M.2), but under Ubuntu 18.04.2 LTS I only see the NVMe device inserted in solot 1 of Hyper M.2. I…
netmano
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NVME vs SSD: Read/Write performance issue

We have rent some servers from Hetzner.de. A few of them have NVMe hard disks while the others have SSDs. We becnchmarked the read/write performance on 4 of our servers using the following commands: fio dd hdparm The operating system is CentOS7 and…
Sinai
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Two NVMe devices appearing as one

When I run lsblk I see that I have two NVMe devices: $ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT ... nvme0n1 259:0 0 1.1T 0 disk /home nvme1n1 259:1 0 1.1T 0 disk But df -h…
yong
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1 answer

Questions about performance, NVMe drives and virtual machines

I currently have a 4770K with Samsung 850 Evo running Ubuntu 16.04. I create and manage VMs using vagrant with Virtual Box. I recreate VMs frequently and right now, it takes roughly 36 seconds to spin up a new machine using vagrant. I believe I can…
mmvn
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Linux: Disabling Interrupt Coalescing for NVMe device

I'm looking at testing an NVMe device with interrupt coalescing enabled, and disabled. NVMe protocol defined interrupt coalescing parameters that can be passed to the device, and in free BSD the nvme module has these parameters to configure: …
Martin
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1 answer

MongoDB with NVMe SSD

Does anyone have recommendations on the RAID configuration when running MongoDB on NVMe SSDs? Is the best practice still RAID10 like with HDDs and SATA SSDs? Thanks.
Dan
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Intel server board s2600cw2r boot from nvme?

I have upgraded BIOS to 19 for supporting efi boot, but I can't see my nvme ssd in the boot manager yet.
user219031
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