2024 Ceph osd crush weight-set reweight-compat

Ceph osd crush weight-set reweight-compat

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August undefined, 2024

WebMar 22, 2024 · ceph config set global osd_crush_update_weight_set false This is about 95% bug fixes, and a few very small changes to the monitor to make the option behave … WebTo set the CRUSH map for your cluster, execute the following: ceph osd setcrushmap-i ... Leaf buckets represent ceph-osd daemons and their corresponding storage media. Tip. …

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WebSet the override weight (reweight) of {osd-num} to {weight}. Two OSDs with the same weight will receive roughly the same number of I/O requests and store approximately the same amount of data. ceph osd reweight sets an override weight on the OSD. This value is in the range 0 to 1, and forces CRUSH to re-place (1-weight) of the data that would ... WebSep 26, 2024 · $ ceph osd crush rm-device-class osd.2 osd.3 done removing class of osd(s): 2,3 $ ceph osd crush set-device-class ssd osd.2 osd.3 set osd(s) 2,3 to class 'ssd' CRUSH placement rules ¶ CRUSH rules can restrict placement to a specific device class. For example, we can trivially create a "fast" pool that distributes data only over … speed up startup windows 10 microsoft

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WebDec 23, 2014 · Note that ‘ceph osd reweight’ is not a persistent setting. When an OSD gets marked out, the osd weight will be set to 0. When it gets marked in again, the weight … WebOct 10, 2024 · The Proxmox Ceph upgrade process should potentially recommend users consider changing existing bucket's distribution algorithm from 'straw' to 'straw2'. This is additionally a requirement when using the Ceph balancer module. Before: After: osd.20 838G (45%) used osd.16 803G (43%) used osd.5 546G (29%) used osd.1 680G (37%) … Webweight is a range from 0.0-1.0. You can also temporarily reweight OSDs by utilization. ceph osd reweight-by-utilization {threshold} Where: threshold is a percentage of utilization … speed up swgoh

Ceph: Have OSDs with differently sized disks (6TB and 3TB)

Chapter 8. CRUSH Weights - Red Hat Customer Portal

Web# buckets host ceph01 {id -2 # do not change unnecessarily# weight 6.000alg strawhash 0 # rjenkins1item osd.0 weight 2.000item osd.1 weight 2.000item osd.2 weight 2.000} … WebFeb 12, 2015 · When you need to remove an OSD from the CRUSH map, use ceph osd rm with the UUID.6. Create or delete a storage pool: ceph osd pool create ceph osd pool deleteCreate a new storage pool with a name and number of placement groups with ceph osd pool create. Remove it (and wave bye-bye to all the data in it) with ceph osd pool … speed up startup win 10WebThis procedure sets up a ceph-osd daemon, configures it to use one drive, and configures the cluster to distribute data to the OSD. If your host has multiple drives, you may add an OSD for each drive by repeating this procedure. ... When you add the OSD to the CRUSH map, consider the weight you give to the new OSD. Hard drive capacity grows 40% ... speed up start up on my pc

"WebSep 10, 2024 · Monitor with "ceph osd df tree", as osd's of device class "ssd" or "nvme" could fill up, even though there there is free space on osd's with device class "hdd". Any osd above 70% full is considered full and may not be able to handle needed backfilling if a there is a failure in the domain (default is host). " - Ceph osd crush weight-set reweight-compat

Ceph osd crush weight-set reweight-compat

Chapter 8. CRUSH Weights - Red Hat Customer Portal

Web'osd crush tree' shows a column per weight-set (which are mapped to pools) json version of above shows full weight-set, including positions (plain view only shows first weight) … WebMar 21, 2024 · Ceph support the option '--osd-crush-initial-weight' upon OSD start, which sets an explicit weight (in TiB units) to specific OSD. Allo passing this option all the way from the user (similar to 'DeviceClass'), for the special case where end users wants it cluster to have non-even balance over specific OSDs (e.g., one of the OSDs is placed over a …

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WebYou can also use ceph osd crush set or ceph osd crush create-or-move to add an OSD to the CRUSH hierarchy. 2.3.3. Moving an OSD within a CRUSH Hierarchy. If the deployment utility, such as the Ansible automation application added an OSD to the CRUSH map at a sub-optimal CRUSH location, or if your cluster topology changes, you can move an OSD … Webceph osd crush set osd.1 .1102 root = ssd host = node1-ssd ceph osd crush set osd.3 .1102 root = ssd host = node2-ssd ceph osd crush set osd.7 .1102 root = ssd host = node3-ssd It’s important to note that the ceph osd crush set command requires a weight to be specified (our example uses .1102 ).

WebDec 9, 2013 · Let’s go slowly, we will increase the weight of osd.13 with a step of 0.05. $ ceph osd tree grep osd.13 13 3 osd.13 up 1 $ ceph osd crush reweight osd.13 3.05 … WebI found this way to change realtime config (without editing any file) but its saying change may require restart, i don't know what restart and that is what i am trying to avoid. …

WebThis is correct. Crush rule set is what governs this. Ceph will try to keep all OSDs the same level of full (in bytes not in percentage) by default. You can use ceph osd reweight to change this though. You can view the current weights with ceph osd tree. I have 12 osds. 4 in 3 boxes. 8 of which are 1tb and 4 of which are 250gb. Webcephuser@adm > ceph osd tree ID CLASS WEIGHT TYPE NAME STATUS REWEIGHT PRI-AFF -1 0.02939 root default -3 0.00980 host doc-ses-min2 0 hdd 0.00980 osd.0 up 1.00000 1.00000 -5 0.00980 host doc-ses-min3 1 hdd 0.00980 osd.1 ... This can be done using the ceph osd crush move and/or ceph osd crush set commands.

Webi've reweighted the compat weight-set back to as close as the original crush weights using 'ceph osd crush reweight-compat' Before i switch to upmap i presume i need to …

Webceph osd pool set crush_rule ceph osd pool set cold crush_rule hdd ceph osd pool set hot crush_rule ssd. There is no need to manually edit the CRUSH map, because one hierarchy can … speed up synology nasWebI think the best path is actually to move the weight setting and location update inside ceph-osd and out of the kludgey osd-prestart.sh script... I have a wip branch floating around somewhere that starts that process. ... Related issues. Copied to Ceph - Backport #15985: jewel: osd crush weights not correctly set for bluestore Rejected: Issue ... speed up switch downloadWebDec 9, 2013 · Increase osd weight. Before operation get the map of Placement Groups. $ ceph pg dump > /tmp/pg_dump.1. Let’s go slowly, we will increase the weight of osd.13 with a step of 0.05. $ ceph osd tree grep osd.13 13 3 osd.13 up 1 $ ceph osd crush reweight osd.13 3.05 reweighted item id 13 name 'osd.13' to 3.05 in crush map $ ceph … speed up system callsWebThis example sets the weight of osd.0 which is 600GiB. ceph osd crush reweight osd.0 .600 OSD Primary Affinity. When pools are set with a size setting greater than one, data is replicated between nodes and OSDs. For every chunk of data a Primary OSD is selected to be used for reading that data to be sent to clients. You can control how likely ... speed up system bootWebThis procedure sets up a ceph-osd daemon, configures it to use one drive, and configures the cluster to distribute data to the OSD. If your host has multiple drives, you may add an OSD for each drive by repeating this procedure. ... When you add the OSD to the CRUSH map, consider the weight you give to the new OSD. Hard drive capacity grows 40% ... speed up synology nas file transferWebceph osd pool set crush_rule ceph osd pool set cold crush_rule hdd ceph osd pool set hot crush_rule ssd. There is no need to manually … speed up switch wifiWebDec 23, 2014 · “ceph osd reweight” sets an override weight on the OSD. This value is in the range 0 to 1, and forces CRUSH to re-place (1-weight) of the data that would … speed up system windows 11