It seems to be relatively close to that +/- 1.00 range. ubuntu@juju-5dcfd8-3-lxd-2:~$ sudo ceph osd df ID CLASS WEIGHT REWEIGHT SIZE RAW USE DATA OMAP META AVAIL %USE VAR PGS STATUS 1 ssd 18.19040 1.00000 18 TiB 10 TiB 10 TiB 11 GiB 38 GiB 8.1 TiB 55.59 0.92 174 up 4 ssd 18.19040 1.00000 18 TiB 11 TiB 11 TiB 20 GiB 34 GiB 7.3 TiB 59.90 0.99 175 up 9 ssd 18.19040 1.00000 18 TiB 9.7 TiB 9.6 TiB 23 GiB 35 GiB 8.5 TiB 53.11 0.88 185 up 13 ssd 18.19040 1.00000 18 TiB 13 TiB 13 TiB 19 GiB 48 GiB 4.8 TiB 73.87 1.22 199 up 17 ssd 18.19040 1.00000 18 TiB 12 TiB 12 TiB 14 GiB 55 GiB 5.9 TiB 67.49 1.12 185 up 21 ssd 18.19040 1.00000 18 TiB 10 TiB 10 TiB 24 GiB 38 GiB 7.8 TiB 57.27 0.95 179 up 25 ssd 18.19040 1.00000 18 TiB 12 TiB 12 TiB 20 GiB 57 GiB 6.1 TiB 66.70 1.10 192 up 29 ssd 18.19040 1.00000 18 TiB 9.2 TiB 9.2 TiB 15 GiB 34 GiB 9.0 TiB 50.61 0.84 170 up 33 ssd 18.19040 1.00000 18 TiB 9.2 TiB 9.1 TiB 13 GiB 36 GiB 9.0 TiB 50.56 0.84 180 up 39 ssd 18.19040 1.00000 18 TiB 12 TiB 12 TiB 4.3 GiB 45 GiB 6.0 TiB 66.84 1.11 188 up 44 ssd 18.19040 1.00000 18 TiB 13 TiB 13 TiB 10 GiB 56 GiB 5.3 TiB 70.59 1.17 187 up 46 ssd 18.19040 1.00000 18 TiB 10 TiB 10 TiB 14 GiB 44 GiB 7.8 TiB 57.24 0.95 174 up 0 ssd 18.19040 1.00000 18 TiB 11 TiB 11 TiB 5.0 GiB 38 GiB 6.9 TiB 62.13 1.03 172 up 5 ssd 18.19040 1.00000 18 TiB 11 TiB 11 TiB 11 GiB 44 GiB 7.3 TiB 59.69 0.99 177 up 10 ssd 18.19040 1.00000 18 TiB 12 TiB 11 TiB 18 GiB 47 GiB 6.7 TiB 63.34 1.05 190 up 14 ssd 18.19040 1.00000 18 TiB 12 TiB 12 TiB 5.1 GiB 48 GiB 6.3 TiB 65.51 1.08 189 up 18 ssd 18.19040 1.00000 18 TiB 9.7 TiB 9.6 TiB 13 GiB 33 GiB 8.5 TiB 53.14 0.88 175 up 22 ssd 18.19040 1.00000 18 TiB 11 TiB 11 TiB 20 GiB 42 GiB 7.3 TiB 59.61 0.99 183 up 26 ssd 18.19040 1.00000 18 TiB 9.8 TiB 9.8 TiB 9.9 GiB 31 GiB 8.4 TiB 53.88 0.89 186 up 30 ssd 18.19040 1.00000 18 TiB 12 TiB 12 TiB 4.5 GiB 56 GiB 6.4 TiB 64.65 1.07 179 up 34 ssd 18.19040 1.00000 18 TiB 13 TiB 13 TiB 18 GiB 49 GiB 4.9 TiB 73.17 1.21 192 up 38 ssd 18.19040 1.00000 18 TiB 12 TiB 12 TiB 16 GiB 51 GiB 6.4 TiB 64.67 1.07 186 up 40 ssd 18.19040 1.00000 18 TiB 13 TiB 12 TiB 23 GiB 52 GiB 5.7 TiB 68.91 1.14 184 up 42 ssd 18.19040 1.00000 18 TiB 9.7 TiB 9.7 TiB 14 GiB 26 GiB 8.5 TiB 53.35 0.88 171 up 3 ssd 18.19040 1.00000 18 TiB 9.9 TiB 9.8 TiB 15 GiB 36 GiB 8.3 TiB 54.42 0.90 184 up 7 ssd 18.19040 1.00000 18 TiB 10 TiB 10 TiB 5.4 GiB 36 GiB 7.9 TiB 56.73 0.94 184 up 11 ssd 18.19040 1.00000 18 TiB 12 TiB 12 TiB 9.6 GiB 54 GiB 6.6 TiB 63.76 1.06 188 up 15 ssd 18.19040 1.00000 18 TiB 11 TiB 11 TiB 7.2 GiB 47 GiB 7.5 TiB 58.51 0.97 192 up 19 ssd 18.19040 1.00000 18 TiB 11 TiB 11 TiB 19 GiB 41 GiB 7.3 TiB 59.87 0.99 181 up 23 ssd 18.19040 1.00000 18 TiB 13 TiB 12 TiB 20 GiB 54 GiB 5.7 TiB 68.89 1.14 181 up 27 ssd 18.19040 1.00000 18 TiB 9.0 TiB 9.0 TiB 15 GiB 31 GiB 9.2 TiB 49.63 0.82 173 up 32 ssd 18.19040 1.00000 18 TiB 11 TiB 11 TiB 20 GiB 26 GiB 7.3 TiB 59.92 0.99 183 up 36 ssd 18.19040 1.00000 18 TiB 8.3 TiB 8.3 TiB 11 GiB 17 GiB 9.8 TiB 45.86 0.76 177 up 41 ssd 18.19040 1.00000 18 TiB 13 TiB 13 TiB 25 GiB 49 GiB 5.2 TiB 71.30 1.18 191 up 45 ssd 18.19040 1.00000 18 TiB 10 TiB 10 TiB 13 GiB 42 GiB 7.9 TiB 56.37 0.93 163 up 47 ssd 18.19040 1.00000 18 TiB 11 TiB 11 TiB 13 GiB 38 GiB 7.2 TiB 60.45 1.00 167 up 2 ssd 18.19040 1.00000 18 TiB 11 TiB 11 TiB 5.2 GiB 43 GiB 7.2 TiB 60.42 1.00 179 up 6 ssd 18.19040 1.00000 18 TiB 11 TiB 11 TiB 28 GiB 47 GiB 7.1 TiB 60.99 1.01 184 up 8 ssd 18.19040 1.00000 18 TiB 13 TiB 13 TiB 20 GiB 59 GiB 5.5 TiB 69.95 1.16 184 up 12 ssd 18.19040 1.00000 18 TiB 11 TiB 11 TiB 6.2 GiB 39 GiB 7.4 TiB 59.22 0.98 180 up 16 ssd 18.19040 1.00000 18 TiB 9.8 TiB 9.7 TiB 14 GiB 37 GiB 8.4 TiB 53.63 0.89 187 up 20 ssd 18.19040 1.00000 18 TiB 9.7 TiB 9.6 TiB 21 GiB 33 GiB 8.5 TiB 53.14 0.88 181 up 24 ssd 18.19040 1.00000 18 TiB 12 TiB 12 TiB 10 GiB 46 GiB 6.3 TiB 65.24 1.08 180 up 28 ssd 18.19040 1.00000 18 TiB 10 TiB 10 TiB 13 GiB 45 GiB 8.1 TiB 55.41 0.92 192 up 31 ssd 18.19040 1.00000 18 TiB 12 TiB 12 TiB 22 GiB 48 GiB 6.2 TiB 65.92 1.09 186 up 35 ssd 18.19040 1.00000 18 TiB 10 TiB 10 TiB 15 GiB 33 GiB 8.0 TiB 56.11 0.93 175 up 37 ssd 18.19040 1.00000 18 TiB 13 TiB 13 TiB 13 GiB 53 GiB 5.0 TiB 72.78 1.21 179 up 43 ssd 18.19040 1.00000 18 TiB 8.9 TiB 8.8 TiB 17 GiB 23 GiB 9.3 TiB 48.71 0.81 178 up TOTAL 873 TiB 527 TiB 525 TiB 704 GiB 2.0 TiB 346 TiB 60.40 MIN/MAX VAR: 0.76/1.22 STDDEV: 6.98 -----Original Message----- From: Anthony D'Atri <anthony.datri@gmail.com> Sent: Wednesday, March 20, 2024 5:09 PM To: Michael Worsham <mworsham@datadimensions.com> Cc: ceph-users@ceph.io Subject: Re: [ceph-users] Need easy way to calculate Ceph cluster space for SolarWinds This is an external email. Please take care when clicking links or opening attachments. When in doubt, check with the Help Desk or Security. Looks like you have one device class and the same replication on all pools, which makes that simpler. Your MAX AVAIL figures are lower than I would expect if you're using size=3, so I'd check if you have the balancer enabled, if it's working properly. Run ceph osd df and look at the VAR column, [rook@rook-ceph-tools-5ff8d58445-p9npl /]$ ceph osd df | head ID CLASS WEIGHT REWEIGHT SIZE RAW USE DATA OMAP META AVAIL %USE VAR PGS STATUS Ideally the numbers should all be close to 1.00 + / -
On Mar 20, 2024, at 16:55, Michael Worsham <mworsham@datadimensions.com> wrote:
I had a request from the upper management wanting to use SolarWinds to be able to extract what I am looking at and have SolarWinds track it in terms of total available space, remaining space of the overall cluster, and I guess would be the current RGW pools/buckets we have and their allocated sizes and space remaining in it as well. I am sort of in the dark when it comes to trying to break things down to make it readable/understandable for those that are non-technical.
I was told that when it comes to pools and buckets, you sort of have to see it this way: - Bucket is like a folder - Pool is like a hard drive. - You can create many folders in a hard drive and you can add quota to each folder. - But if you want to know the remaining space, you need to check the hard drive.
I did the "ceph df" command on the ceph monitor and we have something that looks like this:
sudo ceph df --- RAW STORAGE --- CLASS SIZE AVAIL USED RAW USED %RAW USED ssd 873 TiB 346 TiB 527 TiB 527 TiB 60.40 TOTAL 873 TiB 346 TiB 527 TiB 527 TiB 60.40
--- POOLS --- POOL ID PGS STORED OBJECTS USED %USED MAX AVAIL .mgr 1 1 449 KiB 2 1.3 MiB 0 61 TiB default.rgw.buckets.data 2 2048 123 TiB 41.86M 371 TiB 66.76 61 TiB default.rgw.control 3 2 0 B 8 0 B 0 61 TiB default.rgw.data.root 4 2 0 B 0 0 B 0 61 TiB default.rgw.gc 5 2 0 B 0 0 B 0 61 TiB default.rgw.log 6 2 41 KiB 209 732 KiB 0 61 TiB default.rgw.intent-log 7 2 0 B 0 0 B 0 61 TiB default.rgw.meta 8 2 20 KiB 96 972 KiB 0 61 TiB default.rgw.otp 9 2 0 B 0 0 B 0 61 TiB default.rgw.usage 10 2 0 B 0 0 B 0 61 TiB default.rgw.users.keys 11 2 0 B 0 0 B 0 61 TiB default.rgw.users.email 12 2 0 B 0 0 B 0 61 TiB default.rgw.users.swift 13 2 0 B 0 0 B 0 61 TiB default.rgw.users.uid 14 2 0 B 0 0 B 0 61 TiB default.rgw.buckets.extra 15 16 0 B 0 0 B 0 61 TiB default.rgw.buckets.index 16 64 6.3 GiB 184 19 GiB 0.01 61 TiB .rgw.root 17 2 2.3 KiB 4 48 KiB 0 61 TiB ceph-benchmarking 18 128 596 GiB 302.20k 1.7 TiB 0.94 61 TiB ceph-fs_data 19 64 438 MiB 110 1.3 GiB 0 61 TiB ceph-fs_metadata 20 16 37 MiB 32 111 MiB 0 61 TiB test 21 32 21 TiB 5.61M 64 TiB 25.83 61 TiB DD-Test 22 32 11 MiB 13 32 MiB 0 61 TiB nativesqlbackup 24 32 539 MiB 147 1.6 GiB 0 61 TiB default.rgw.buckets.non-ec 25 32 1.7 MiB 0 5.0 MiB 0 61 TiB ceph-fs_sql_backups 26 32 0 B 0 0 B 0 61 TiB ceph-fs_sql_backups_metadata 27 32 0 B 0 0 B 0 61 TiB dd-drs-backups 28 32 0 B 0 0 B 0 61 TiB default.rgw.jv-corp-pool.data 59 32 16 TiB 63.90M 49 TiB 21.12 61 TiB default.rgw.jv-corp-pool.index 60 32 108 GiB 1.19k 323 GiB 0.17 61 TiB default.rgw.jv-corp-pool.non-ec 61 32 0 B 0 0 B 0 61 TiB default.rgw.jv-comm-pool.data 62 32 8.1 TiB 44.20M 24 TiB 11.65 61 TiB default.rgw.jv-comm-pool.index 63 32 83 GiB 811 248 GiB 0.13 61 TiB default.rgw.jv-comm-pool.non-ec 64 32 0 B 0 0 B 0 61 TiB default.rgw.jv-va-pool.data 65 32 4.8 TiB 22.17M 14 TiB 7.28 61 TiB default.rgw.jv-va-pool.index 66 32 38 GiB 401 113 GiB 0.06 61 TiB default.rgw.jv-va-pool.non-ec 67 32 0 B 0 0 B 0 61 TiB jv-edi-pool 68 32 0 B 0 0 B 0 61 TiB
-- Michael
-----Original Message----- From: Anthony D'Atri <anthony.datri@gmail.com> Sent: Wednesday, March 20, 2024 2:48 PM To: Michael Worsham <mworsham@datadimensions.com> Cc: ceph-users@ceph.io Subject: Re: [ceph-users] Need easy way to calculate Ceph cluster space for SolarWinds
This is an external email. Please take care when clicking links or opening attachments. When in doubt, check with the Help Desk or Security.
On Mar 20, 2024, at 14:42, Michael Worsham <mworsham@datadimensions.com> wrote:
Is there an easy way to poll a Ceph cluster to see how much space is available
`ceph df`
The exporter has percentages per pool as well.
and how much space is available per bucket?
Are you using RGW quotas?
Looking for a way to use SolarWinds to monitor the entire Ceph cluster space utilization and then also be able to break down each RGW bucket to see how much space it was provisioned for and how much is available.
RGW buckets do not provision space. Optionally there may be some RGW quotas but they're a different thing than you're implying.
-- Michael
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