Bug 1810396 - [RFE][gss][RADOS] "ceph device query-daemon-health-metrics osd.x" command is not working on MegaRaid disks.
Summary: [RFE][gss][RADOS] "ceph device query-daemon-health-metrics osd.x" command is ...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: RADOS
Version: 4.0
Hardware: x86_64
OS: All
medium
medium
Target Milestone: rc
: 5.*
Assignee: Neha Ojha
QA Contact: Manohar Murthy
Aron Gunn
URL:
Whiteboard:
Depends On:
Blocks: 1816167
TreeView+ depends on / blocked
 
Reported: 2020-03-05 07:02 UTC by Geo Jose
Modified: 2024-03-25 15:43 UTC (History)
12 users (show)

Fixed In Version:
Doc Type: Known Issue
Doc Text:
.The `ceph device` command does not work when querying MegaRaid devices Currently, the `ceph device query-daemon-health-metrics` command does not support querying the health metrics of disks attached to MegaRaid devices. This command displays an error similar to the following: ---- smartctl returned invalid JSON ---- The disk failure prediction module for MegaRaid devices is unusable at this time. Currently, there is no workaround for this issue. See the link:{hardware-guide}#avoid-using-raid-solutions_hw[_{storage-product} Hardware Guide_] for more information on using RAID solutions with {storage-product}.
Clone Of:
Environment:
Last Closed: 2020-09-14 19:18:27 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHCEPH-1686 0 None None None 2021-09-14 07:45:51 UTC

Internal Links: 1878929

Description Geo Jose 2020-03-05 07:02:38 UTC 
Description of problem:
ceph can monitor the health metrics for all types of devices(such as SATA, SAS, NVMe) using SMART. But "ceph device query-daemon-health-metrics osd.X" is not working on MegaRaid OSD device.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. Configure OSDs on MegaRaid devices(Device driver: megaraid_sas).
2. Run the command "ceph device query-daemon-health-metrics osd.X".


Actual results:
Getting the error "smartctl returned invalid JSON"

Expected results:


Additional info:
It seems that ceph uses the command "/usr/sbin/smartctl -a --json=o /dev/sdX". For MegaRaid devices, this command will not work until we pass the option "megaraid,N"(N  denotes which disk on the controller is monitored) with smartctl command.
Comment 3 Yaarit Hatuka 2020-03-09 18:21:14 UTC 
Hi Geo,

Unfortunately, we currently do not support querying health metrics of devices behind HW RAID.

Thanks,
Yaarit
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