Feature #24871: Listing disks provisionned by ceph-disk - ceph-volume - Ceph

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Feature #24871

closed

Listing disks provisionned by ceph-disk

Added by Anonymous almost 6 years ago. Updated about 5 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Andrew Schoen

Target version:

% Done:

Source:

Tags:

Backport:

Reviewed:

Affected Versions:

Pull request ID:

Description

Since the deprecation of ceph-disk in favor of ceph-volume, we need a ceph-volume command that is similar to the old ceph-disk list that would

enumerate all devices on the system,
perform the in-use check
report the device type (journal, block, wal etc..)
tell you which ones are available
for the ones that are rejected, tell you why
consider detected TOBE devices
detect & report as much as possible every detected on partially|fully configured devices
provide a json output for a better interaction with other tools

A possible implementation could be providing something like 'ceph-volume list-devices'

(This is all coming from https://github.com/ceph/ceph/pull/22905)

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Updated by Sébastien Han over 5 years ago

https://docs.google.com/document/d/1dqqhGZk466eKcXzn5c4paAfVaItKJLjEA7vmt263Vno/edit

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Updated by Alfredo Deza over 5 years ago

Status changed from New to Resolved

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Updated by Sébastien Han over 5 years ago

Alfredo, where is the code that solved this?
Thanks!

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Updated by Sébastien Han over 5 years ago

Status changed from Resolved to New

Setting this back to New since there is no trace of PR fixing this.

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Updated by Alfredo Deza over 5 years ago

Status changed from New to Resolved

master PR: https://github.com/ceph/ceph/pull/24859
mimic PR:https://github.com/ceph/ceph/pull/25013
luminous PR: https://github.com/ceph/ceph/pull/25014

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Updated by Sébastien Han over 5 years ago

Status changed from Resolved to New

This is definitely not resolved, neither the 'inventory' command nor the 'lvm list' command are able to tell if the existing device is a ceph-disk osd. See the following, where /dev/sdd is a ceph-disk osd:

$ sudo ceph-disk list /dev/sdd
/dev/sdd :
 /dev/sdd1 ceph data, prepared, unknown cluster a4a33288-6aa9-443d-a1aa-aa0fa655a057, block /dev/sdd2
 /dev/sdd2 ceph block, for /dev/sdd1

Now testing with `ceph-volume lvm list`:

$ sudo ceph-volume lvm list /dev/sdd
No valid Ceph devices found

And eventually with `ceph-volume inventory`:

$ sudo ceph-volume inventory /dev/sdd --format json-pretty
{
    "available": true,
    "lvs": [],
    "path": "/dev/sdd",
    "rejected_reasons": [],
    "sys_api": {
        "human_readable_size": "279.37 GB",
        "locked": 0,
        "model": "LOGICAL VOLUME",
        "nr_requests": "128",
        "partitions": {
            "sdd1": {
                "holders": [],
                "sectors": "204800",
                "sectorsize": 512,
                "size": "100.00 MB",
                "start": "2048" 
            },
            "sdd2": {
                "holders": [],
                "sectors": "585665083",
                "sectorsize": 512,
                "size": "279.27 GB",
                "start": "206848" 
            }
        },
        "path": "/dev/sdd",
        "removable": "0",
        "rev": "8.32",
        "ro": "0",
        "rotational": "1",
        "sas_address": "",
        "sas_device_handle": "",
        "scheduler_mode": "deadline",
        "sectors": 0,
        "sectorsize": "512",
        "size": 299966445568.0,
        "support_discard": "",
        "vendor": "HP" 
    }
}

I'd say it's even worse because of the `inventory` command reports the disk as available. The disk has partitions, This might be a stopped OSD.

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