Hello,
i have from the beginning on one DC very old crush map rules, to split
HDD and SSD disks. It is obsolete since Luminous and I want to drop them:
# ceph osd crush rule ls
replicated_rule
fc-r02-ssdpool
fc-r02-satapool
fc-r02-ssd
=================
[
{
"rule_id": 0,
"rule_name": "replicated_rule",
"ruleset": 0,
"type": 1,
"min_size": 1,
"max_size": 10,
"steps": [
{
"op": "take",
"item": -1,
"item_name": "default"
},
{
"op": "chooseleaf_firstn",
"num": 0,
"type": "host"
},
{
"op": "emit"
}
]
},
{
"rule_id": 1,
"rule_name": "fc-r02-ssdpool",
"ruleset": 1,
"type": 1,
"min_size": 1,
"max_size": 10,
"steps": [
{
"op": "take",
"item": -15,
"item_name": "r02-ssds"
},
{
"op": "chooseleaf_firstn",
"num": 0,
"type": "host"
},
{
"op": "emit"
}
]
},
{
"rule_id": 2,
"rule_name": "fc-r02-satapool",
"ruleset": 2,
"type": 1,
"min_size": 1,
"max_size": 10,
"steps": [
{
"op": "take",
"item": -16,
"item_name": "r02-sata"
},
{
"op": "chooseleaf_firstn",
"num": 0,
"type": "host"
},
{
"op": "emit"
}
]
},
{
"rule_id": 3,
"rule_name": "fc-r02-ssd",
"ruleset": 3,
"type": 1,
"min_size": 1,
"max_size": 10,
"steps": [
{
"op": "take",
"item": -4,
"item_name": "default~ssd"
},
{
"op": "chooseleaf_firstn",
"num": 0,
"type": "host"
},
{
"op": "emit"
}
]
}
]
==========================
# ceph osd tree
ID CLASS WEIGHT TYPE NAME STATUS REWEIGHT
PRI-AFF
-14 0 root sata
-18 0 datacenter fc-sata
-16 0 rack r02-sata
-13 18.55234 root ssds
-17 18.55234 datacenter fc-ssds
-15 18.55234 rack r02-ssds
-6 3.09206 host fc-r02-ceph-osd-01
41 nvme 0.36388 osd.41 up 1.00000
1.00000
0 ssd 0.45470 osd.0 up 1.00000
1.00000
1 ssd 0.45470 osd.1 up 1.00000
1.00000
2 ssd 0.45470 osd.2 up 1.00000
1.00000
3 ssd 0.45470 osd.3 up 1.00000
1.00000
4 ssd 0.45470 osd.4 up 1.00000
1.00000
5 ssd 0.45470 osd.5 up 1.00000
1.00000
-2 3.09206 host fc-r02-ceph-osd-02
36 nvme 0.36388 osd.36 up 1.00000
1.00000
6 ssd 0.45470 osd.6 up 1.00000
1.00000
7 ssd 0.45470 osd.7 up 1.00000
1.00000
8 ssd 0.45470 osd.8 up 1.00000
1.00000
9 ssd 0.45470 osd.9 up 1.00000
1.00000
10 ssd 0.45470 osd.10 up 1.00000
1.00000
29 ssd 0.45470 osd.29 up 1.00000
1.00000
-5 3.45593 host fc-r02-ceph-osd-03
38 nvme 0.36388 osd.38 up 1.00000
1.00000
40 nvme 0.36388 osd.40 up 1.00000
1.00000
11 ssd 0.45470 osd.11 up 1.00000
1.00000
12 ssd 0.45470 osd.12 up 1.00000
1.00000
13 ssd 0.45470 osd.13 up 1.00000
1.00000
14 ssd 0.45470 osd.14 up 1.00000
1.00000
15 ssd 0.45470 osd.15 up 1.00000
1.00000
16 ssd 0.45470 osd.16 up 1.00000
1.00000
-9 3.09206 host fc-r02-ceph-osd-04
37 nvme 0.36388 osd.37 up 1.00000
1.00000
30 ssd 0.45470 osd.30 up 1.00000
1.00000
31 ssd 0.45470 osd.31 up 1.00000
1.00000
32 ssd 0.45470 osd.32 up 1.00000
1.00000
33 ssd 0.45470 osd.33 up 1.00000
1.00000
34 ssd 0.45470 osd.34 up 1.00000
1.00000
35 ssd 0.45470 osd.35 up 1.00000
1.00000
-11 2.72818 host fc-r02-ceph-osd-05
17 ssd 0.45470 osd.17 up 1.00000
1.00000
18 ssd 0.45470 osd.18 up 1.00000
1.00000
19 ssd 0.45470 osd.19 up 1.00000
1.00000
20 ssd 0.45470 osd.20 up 1.00000
1.00000
21 ssd 0.45470 osd.21 up 1.00000
1.00000
22 ssd 0.45470 osd.22 up 1.00000
1.00000
-25 3.09206 host fc-r02-ceph-osd-06
39 nvme 0.36388 osd.39 up 1.00000
1.00000
23 ssd 0.45470 osd.23 up 1.00000
1.00000
24 ssd 0.45470 osd.24 up 1.00000
1.00000
25 ssd 0.45470 osd.25 up 1.00000
1.00000
26 ssd 0.45470 osd.26 up 1.00000
1.00000
27 ssd 0.45470 osd.27 up 1.00000
1.00000
28 ssd 0.45470 osd.28 up 1.00000
1.00000
-1 0 root default
===================================================
the question is now: what is the best way, to drop them and use the
defaults from Ceph.
Any suggestions ?
cu denny
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