Ceph osd crush weight-set reweight-compat

Author: vlfn

August undefined, 2024

WebThis 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% ... 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%) …

CRUSH Maps — Ceph Documentation

WebUsage: ceph osd crush set-tunable straw_calc_version Subcommand show-tunables shows current crush tunables. Usage: ceph osd crush ... So increasing the osd weight is allowed using the reweight-by-utilization or test-reweight-by-utilization commands. If this option is used with these commands, it will help not to increase osd weight even ... 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. lookup my social security benefits

How to set osd_crush_initial_weight : ceph - Reddit

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 ). Webcephadm > ceph osd pool set POOL_NAME crush_rule replicated_hdd. ... { id -5 # do not change unnecessarily # weight 0.012 alg straw hash 0 # rjenkins1 item osd.6 weight 0.003 item osd.7 weight 0.003 item osd.8 weight 0.003 item osd.9 weight 0.003 } [...] Edit the CRUSH map for the hot storage pool mapped to the OSDs backed by the fast SSD ... 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. … look up my serial number

Ceph - Balancing OSD distribution (new in Luminous)

How to assign existing replicated pools to a device class.

WebDec 9, 2013 · Before operation get the map of Placement Groups. 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 osd tree grep osd.13 13 3.05 osd.13 up 1. 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 … look up my social security benefitsWebThis 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. look up my sim card number

"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} … " - Ceph osd crush weight-set reweight-compat

Ceph osd crush weight-set reweight-compat

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

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 … 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 …

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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). WebI 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 ...

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. weight is an arbitrary value (generally the size of the disk in TB or. something) and controls how much data the system tries to allocate to. the OSD. "ceph osd reweight" …

WebYou can also set weights on osd crush add or osd crush set (move). CRUSH buckets reflect the sum of the weights of the buckets or the devices they contain. For example, a rack containing a two hosts with two OSDs each, might have a weight of 4.0 and each host a weight of 2.0 --the sum for each OSD, where the weight per OSD is 1.00. Webacting set, and. primary OSD. A table for all OSDs. Each row presents an OSD. With columns of: count of placement groups being mapped to this OSD, count of placement groups where this OSD is the first one in their acting sets, count of placement groups where this OSD is the primary of them, the CRUSH weight of this OSD, and. the weight of this …

WebCRUSH uses a map of your cluster (the CRUSH map) to pseudo-randomlymap data to OSDs, distributing it across the cluster according to configuredreplication policy and …

WebDec 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 … look up my sba loan number horaire basic fit coraWebDec 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 … look up my social security incomeWebSet 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 ... look up my social security earningsWebThis 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% ... lookup my social security number onlineWebweight 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 … look up my spectrum accountWebMar 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 … look up my social security benefits online