Boston-LC:bos009:Ubuntu18.04: No /dev/disk/by-path link created for Samsung PM1725a NVMe 1.6TB and .8 TB disk drives
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
The Ubuntu-power-systems project |
Invalid
|
Medium
|
Canonical Kernel Team | ||
linux (Ubuntu) |
Invalid
|
Medium
|
Canonical Kernel Team |
Bug Description
== Comment: #1 - Application Cdeadmin
BMC/PNOR:
=========
Firmware Revision : 00.37 IP address : 009.003.020.216
Firmware Build Time : 20171201 BMC MAC address : 0c:c4:7a:f4:4d:60
PNOR Build Time : 20180117
CPLD Version : B2.91.00
Ubuntu 18.04:
=========
root@bos1u1p1:~# uname -a
Linux bos1u1p1 4.15.0-
root@bos1u1p1:~# ls -l /dev/disk/by-path
total 0
lrwxrwxrwx 1 root root 9 Jan 25 10:19 pci-0003:
lrwxrwxrwx 1 root root 10 Jan 25 10:19 pci-0003:
lrwxrwxrwx 1 root root 10 Jan 25 10:19 pci-0003:
lrwxrwxrwx 1 root root 9 Jan 25 10:19 pci-0003:
lrwxrwxrwx 1 root root 9 Jan 25 10:19 pci-0003:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
lrwxrwxrwx 1 root root 9 Jan 25 10:20 pci-0031:
root@bos1u1p1:~#
Problem Description:
=============
- I setup my Boston LC system to run with Ubuntu 18.04
- I tried to test out Samsung PM1725a NVMe 1.6TB and .8 TB disk drives on Boston LC system.
- The disk drive plugged good into the system. However, after boot the system did not see the disk.
- I tried with both Samsung PM1725a NVMe 1.6TB and with .8TB disk drives and none of them show up.
- This disk type plan to supporte in Boston LC system so if the system does not recognize it then it is an issue.
- I checked with Joe W. my team lead and he told me to open github issue for further investigation.
root@bos1u1p1:~# ls -l /dev/disk/by-path
total 0
lrwxrwxrwx 1 root root 9 Jan 25 10:19 pci-0003:
lrwxrwxrwx 1 root root 10 Jan 25 10:19 pci-0003:
lrwxrwxrwx 1 root root 10 Jan 25 10:19 pci-0003:
lrwxrwxrwx 1 root root 9 Jan 25 10:19 pci-0003:
lrwxrwxrwx 1 root root 9 Jan 25 10:19 pci-0003:
- If the disk is recognized then it will be pci-0003:
== Comment: #2 - Application Cdeadmin
------- Comment From dacng 2018-01-25 11:13:00 EDT -------
You need to install NMVE HBA in your machine
== Comment: #3 - Application Cdeadmin
------- Comment From nguyenp1 2018-01-26 15:35:40 EDT -------
- I have NVME HBA adapter installed in the system and 2 Samsung PM1725a NVMe 1.6TB and .8 TB disk drives in the system. The adapter and nvme drives show correctly.
- However, the "ls -l /dev/disk/by-path" command did not show any nvme drives. So it's new issue with
Ubuntu 18.04. Without the PCI path the nvme disks can not be assigned to KVM guest.
root@bos1u1p1:
total 0
lrwxrwxrwx 1 root root 9 Jan 26 15:19 pci-0003:
lrwxrwxrwx 1 root root 10 Jan 26 15:19 pci-0003:
lrwxrwxrwx 1 root root 10 Jan 26 15:19 pci-0003:
Nvme HBA adapter:
0031:08:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller 172Xa (rev 01)
0031:09:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller 172Xa (rev
2 NVMe disks in the system.
root@bos1u1p1:
Node SN Model Namespace Usage Format FW Rev
---------------- -------
/dev/nvme0n1 S3HCNX0J700289 SAMSUNG MZWLL800HEHP-00003 1 800.17 GB / 800.17 GB 512 B + 0 B GPNA4B3Q
/dev/nvme1n1 S3HDNX0J800067 SAMSUNG MZWLL1T6HEHP-00003 1 1.60 TB / 1.60 TB 512 B + 0 B GPNA5B3Q
== Comment: #4 - Application Cdeadmin <email address hidden> - 2018-01-26 15:50:35 ==
------- Comment From nguyenp1 2018-01-26 15:41:17 EDT -------
I checked with Dac Nguyen and he told me his system also has this problem. The "ls -l /dev/disk/by-path" does not display any NVME drives. Without the PCI path the nvme disks can not be assigned to KVM guest. So this problem need to be further investigate.
- I'm gathering sosreport and attach it to the bugzilla.
== Comment: #5 - Paul Nguyen
Attached sosreport in bugzilla for Linux team to look at the problem.
Changed in ubuntu-power-systems: | |
importance: | Undecided → Medium |
assignee: | nobody → Canonical Kernel Team (canonical-kernel-team) |
tags: | added: kernel-da-key |
Changed in linux (Ubuntu): | |
assignee: | Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) → Canonical Kernel Team (canonical-kernel-team) |
importance: | Undecided → Medium |
tags: | added: triage-g |
Changed in ubuntu-power-systems: | |
status: | New → Triaged |
tags: |
added: triage-a removed: triage-g |
Changed in ubuntu-power-systems: | |
status: | Triaged → Incomplete |
Default Comment by Bridge