Can anyone please tell me what "COPIES" means in this context?
[ceph: root@san2 /]# rados df -p cephfs.shared.data
POOL_NAME USED OBJECTS CLONES COPIES
MISSING_ON_PRIMARY UNFOUND DEGRADED RD_OPS RD WR_OPS
WR USED COMPR UNDER COMPR
cephfs.shared.data 41 TiB 3886733 0 11660199
0 0 0 3249045631 177 TiB 9372801877 231 TiB 7.0
MiB 12 MiB
In what sense does my CephFS filesystem include 11660199 'copies'?
Copies of what?
On 18/03/2024 11:12 am, Thorne Lawler wrote:
Thanks Igor,
I have tried that, and the number of objects and bytes_used took a
long time to drop, but they seem to have dropped back to almost the
original level:
* Before creating the file:
o 3885835 objects
o 45349150134272 bytes_used
* After creating the file:
o 3931663 objects
o 45924147249152 bytes_used
* Immediately after deleting the file:
o 3935995 objects
o 45978612027392 bytes_used
* Half an hour after deleting the file:
o 3886013 objects
o 45349569585152 bytes_used
Unfortunately, this is all production infrastructure, so there is
always other activity taking place.
What tools are there to visually inspect the object map and see how it
relates to the filesystem?
On 15/03/2024 7:18 pm, Igor Fedotov wrote:
ceph df detail --format json-pretty
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Regards,
Thorne Lawler - Senior System Administrator
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