Please also note that total cluster size reported below as SIZE
apparently includes DB volumes:
# ceph df
--- RAW STORAGE ---
CLASS SIZE AVAIL USED RAW USED %RAW USED
hdd 373 TiB 364 TiB 9.3 TiB 9.3 TiB 2.50
On 4/4/2023 12:22 PM, Igor Fedotov wrote:
Do you have standalone DB volumes for your OSD?
If so then highly likely RAW usage is that high due to DB volumes
space is considered as in-use one already.
Could you please share "ceph osd df tree" output to prove that?
Thanks,
Igor
On 4/4/2023 4:25 AM, Work Ceph wrote:
Hello guys!
We noticed an unexpected situation. In a recently deployed Ceph
cluster we
are seeing a raw usage, that is a bit odd. We have the following setup:
We have a new cluster with 5 nodes with the following setup:
- 128 GB of RAM
- 2 cpus Intel(R) Intel Xeon Silver 4210R
- 1 NVME of 2 TB for the rocks DB caching
- 5 HDDs of 14TB
- 1 NIC dual port of 25GiB in BOND mode.
Right after deploying the Ceph cluster, we see a raw usage of about
9TiB.
However, no load has been applied onto the cluster. Have you guys
seen such
a situation? Or, can you guys help understand it?
We are using Ceph Octopus, and we have set the following configurations:
```
ceph_conf_overrides:
global:
osd pool default size: 3
osd pool default min size: 1
osd pool default pg autoscale mode: "warn"
perf: true
rocksdb perf: true
mon:
mon osd down out interval: 120
osd:
bluestore min alloc size hdd: 65536
```
Any tip or help on how to explain this situation is welcome!
_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx
--
Igor Fedotov
Ceph Lead Developer
Looking for help with your Ceph cluster? Contact us at https://croit.io
croit GmbH, Freseniusstr. 31h, 81247 Munich
CEO: Martin Verges - VAT-ID: DE310638492
Com. register: Amtsgericht Munich HRB 231263
Web: https://croit.io | YouTube: https://goo.gl/PGE1Bx
_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx
