Re: Missing OSD in SSD after disk failure

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Hi Eugen, thanks for the reply.

I've already tried what you wrote in your answer, but still no luck.

The NVMe disk still doesn't have the OSD. Please note I using containers, not standalone OSDs.

Any ideas?

Regards,
Eric

________________________________
Message: 2
Date: Fri, 20 Aug 2021 06:56:59 +0000
From: Eugen Block <eblock@xxxxxx>
Subject:  Re: Missing OSD in SSD after disk failure
To: ceph-users@xxxxxxx
Message-ID:
        <20210820065659.Horde.Azw9eV10u5ynqKwJpUyrg6_@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset=utf-8; format=flowed; DelSp=Yes

Hi,

this seems to be a reoccuring issue, I had the same just yesterday in
my lab environment running on 15.2.13. If I don't specify other
criteria in the yaml file then I'll end up with standalone OSDs
instead of the desired rocksDB on SSD. Maybe this is still a bug, I
didn't check. My workaround is this spec file:

---snip---
block_db_size: 4G
data_devices:
   size: "20G:"
   rotational: 1
db_devices:
   size: "10G"
   rotational: 0
filter_logic: AND
placement:
   hosts:
   - host4
   - host3
   - host1
   - host2
service_id: default
service_type: osd
---snip---

If you apply the new spec file, then destroy and zap the standalone
OSD I believe the orchestrator should redeploy it correctly, it did in
my case. But as I said, this is just a small lab environment.

Regards,
Eugen


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