Ceph osd crush remove The weight of an OSD helps determine the extent of its I/O requests and data storage: two OSDs with the same weight will receive approximately the same number of I/O requests and store approximately the same amount of data. To create a compat weight set: ceph osd crush weight-set create-compat; Weights for the compat weight set can be adjusted with: ceph osd crush weight-set reweight-compat {name} {weight} The compat weight set can be destroyed with: ceph osd crush weight-set rm-compat; Creating per-pool Warning. 删除crush map中的osd： ceph osd crush remove osd. When you remove the OSD from the CRUSH map, CRUSH will recompute which OSDs will get the placement groups and data will rebalance accordingly. Dec 9, 2013 · $ ceph pg dump > /tmp/pg_dump. 5 ceph osd rm osd. ## # ceph auth del osd. Usage: Nov 3, 2022 · CEPH集群跑了一段时间后有几个OSD变成down的状态了,但是我用这个命令去activate也不行 ceph-deploy osd activate osd1:/dev/sdb2:/dev/sdb1 只能把osd从集群中移除，然后再重建了，这个过程必须在ceph重新把数据同步完成才可以做，保证down掉的数据在其他osd中恢复。 Nov 3, 2022 · CEPH集群跑了一段时间后有几个OSD变成down的状态了,但是我用这个命令去activate也不行 ceph-deploy osd activate osd1:/dev/sdb2:/dev/sdb1 只能把osd从集群中移除，然后再重建了，这个过程必须在ceph重新把数据同步完成才可以做，保证down掉的数据在其他osd中恢复。 But I didn't want to just have a useless HDD/osd in ceph, which is why I decided that I would just remove the OSD from ceph, fully reformat it, and then put it back in. 0 Oct 21, 2020 · You can try to reset that with 'ceph osd crush set-device-class hdd osd. I actually typed the wrong name the first time. 0): Removal from the CRUSH map will fail if there are OSDs deployed on the host. conf, example:. 2降低至0. Nov 15, 2023 · ，数据和日志在同一个磁盘上的osd ，将osd. Im trying to remove host "fiorito" from ceph, config. ceph osd purge <ID> --yes-i-really-mean-it; Verify the OSD is removed from the node in the CRUSH map. Feb 20, 2019 · crush 算法的实现源码，是比较独立的一部分，相比ceph其他模块的源码也简单很多，这里先介绍一下，crush 模块的文件说明. Ceph Clients: By distributing CRUSH maps to Ceph clients, CRUSH empowers Ceph clients to communicate with OSDs directly. 要从在线集群里把某个 OSD 彻底踢出 CRUSH Map，或仅踢出某个指定位置的 OSD，执行命令： ceph osd crush remove {name} {< ancestor >} 9. 4和osd. 16和osd. 5 --yes-i-really-mean-it ceph osd crush remove osd. Ceph complains about the osd existing in the crush map. <num> And, we remove the OSD from the Ceph Cluster: # ceph osd rm osd. {osd-num} osd 'allow *' mon 'allow rwx'-i / var / lib / ceph / osd / ceph-{osd-num}/ keyring; 6、把新 OSD 加入 CRUSH Map 中，以便它可以开始接收数据。用 ceph osd crush add 命令把 OSD 加入 CRUSH 分级结构的合适位置。如果你指定了不止一个 bucket，此命令会把它加入你所指定的 Aug 1, 2022 · With the commands below you can set the specific position of an OSD, reweight it's importance or remove it from the crush map all together. 4 $ ceph osd tree | grep osd. Snapshots: The command ceph osd pool mksnap creates a snapshot of a pool. 降osd权重. prepare osd5. 1' from the CRUSH map. 要调整在线集群中某个 OSD 的 CRUSH 权重，执行命令： ceph osd crush reweight {name} {weight} 9. 7 up 1 $ ceph osd crush reweight osd. Creating CRUSH rules for erasure coded pools To add a CRUSH rule for use with an erasure-coded pool, you might specify a rule name and an erasure coded profile. If your Ceph cluster is older than Luminous, you will be unable to use the ceph osd purge command. I tried after the commands and it was removed but in GUI won't disappear from the list and not able to select the disk when creating an osd. After the steps above, the OSD will be considered safe to remove since the data has all Nov 6, 2020 · ceph osd crush rule dump {< name >} 子命令 list 罗列 crush 规则。 用法： ceph osd crush rule list 子命令 ls 罗列 crush 规则。 用法： ceph osd crush rule ls 子命令 rm 删除 crush 规则 < name > 。 用法： ceph osd crush rule rm < name > 子命令 set 单独使用，把输入文件设置为 crush 图。 用法 Apr 9, 2025 · To remove the OSD from Ceph and delete all disk data, first click on More → Destroy. 0 这个是从集群里面删除这个节点的记录. But, cant. <OSD-number> 替换 <OSD-number> 为标记为的OSD的ID down ，例如： # ceph osd crush remove osd. Mar 3, 2024 · Thanks this helped me, first I did ceph osd purge 2 but it was still visible in osd tree so I tried ceph osd crush remove again and this time it was completely gone. If your host has multiple drives, you may need to remove an OSD for each drive by repeating this procedure. 0 4 - remove osd: ceph osd rm osd. Jan 12, 2016 · 从crush中移除节点 ceph osd crush remove osd. ~# ceph osd crush remove osd. 7 7 2. 7' to 2. 48. This procedure removes an OSD from a cluster map, removes its authentication key, removes the OSD from the OSD map, and removes the OSD from the ceph. 这个是从crush中删除，因为已经是0了 所以没影响主机的权重，也就没有迁移了 5、删除节点. Remove all Ceph OSDs running on the specified HOST from the CRUSH map. root@hijos:~# cat crushdeco # begin crush map tunable choose_local_tries 0 tunable choose_local_fallback_tries 0 tunable choose_total_tries 50 tunable chooseleaf_descend_once 1 tunable chooseleaf_vary_r 1 tunable Dec 10, 2020 · $ ceph osd crush remove osd. Oct 14, 2021 · Now, we need to remove the OSD from the CRUSH map: # ceph osd crush remove osd. 三、创建osd. Ceph uses the CRUSH map to determine where to store data across the OSDs. The new cluster is working as it should, and the data center accurately shows 3 nodes. This means that old clients will not be able to connect. ceph osd crush reweight {name} {weight} 7. 推送配置到目标节点3. 8 ceph osd rm 8 I am mainly asking because we are dealing with some stuck PGs (incomplete) which are still referencing id "8" in various places. To remove an OSD from the CRUSH map of a running cluster, run a command of the following form: Instead of removing the OSD from the CRUSH map, you might opt for one of two alternatives: (1) decompile the CRUSH map, remove the OSD from the device list, and remove the device from the host bucket; (2) remove the host bucket from the CRUSH map (provided that it is in the CRUSH map and that you intend to remove the host), recompile the map May 20, 2016 · To clean up this status, remove it from CRUSH map: ceph osd crush rm osd. OSD_NUMBER. Refer to Adding/Removing OSDs for additional details. 0 2 - remove from crush map: ceph osd crush remove osd. After the steps above, the OSD will be considered safe to remove since the data has all Jul 31, 2020 · 此时查看集群中这两个OSD的状态： 要删除osd. 122 sudo ceph osd crush remove osd. 72. , this is the most common configuration, but you may configure your If the CRUSH tunables are set to newer (non-legacy) values and subsequently reverted to the legacy values, ceph-osd daemons will not be required to support any of the newer CRUSH features associated with the newer (non-legacy) values. crush. py) to ensure that the OSDs in all the PGs reside in separate failure domains. 1 查看故障盘osd id. 这个一直是我处理故障的节点osd的方式，其实这个会触发两次迁移，一次是在节点osd out以后，一个是在crush remove以后，两次迁移对于集群来说是不好的，其实是调整步骤是可以避免二次迁移的 If the CRUSH tunables are set to newer (non-legacy) values and subsequently reverted to the legacy values, ceph-osd daemons will not be required to support any of the newer CRUSH features associated with the newer (non-legacy) values. With Ceph, an OSD is generally one Ceph ceph-osd daemon for one storage drive within a host machine. When this option has been added, every time the OSD starts it verifies that it is in the correct location in the CRUSH map and moves itself if it is not. 删除osd： ceph osd rm osd. 8 and no osd. CRUSH Rules: When data is stored in a pool, the placement of PGs and object replicas (or chunks/shards, in the case of erasure-coded pools) in your cluster is governed by CRUSH rules. Dec 14, 2017 · 这个是从认证当中去删除这个节点的信息. Remove the OSD Authentication Key; Ceph stores CRUSH 层次结构是概念性的，因此 ceph osd crush add 命令允许您在您希望的任何位置添加 OSD 到 CRUSH 层次结构。 您指定的位置 应反映 其实际位置。 如果至少指定了一个 bucket，命令会将 OSD 放置到您指定的最具体的 bucket 中， 它会 将 bucket 移到您指定的任何其他 bucket Oct 11, 2020 · systemctl stop ceph-osd@4. Remove it (and wave bye-bye to all the data in it) with ceph osd pool delete. Removing an erasure code profile using osd erasure-code-profile rm does not automatically delete the associated CRUSH rule associated with the erasure code profile. 0' from crush map. 删除节点 ceph osd rm osd. 60 # ceph osd destroy 60 --yes-i-really-mean-it # 清空硬盘上的数据和元数据 # ceph osd purge 60 --yes-i-really-mean-it # 快速删除osd，等同于crush remove+ auth del + osd rm ceph osd crush remove 8 ceph auth del osd. 0 Apr 18, 2016 · Dec 20 22:00:28 pve1 ceph-osd[3991]: 2021-12-20T22:00:28. Once the OSDs have been removed, then you may direct cephadm remove the CRUSH bucket along with the host using the --rm-crush-entry flag. Jun 24, 2024 · Verify that all residual references to the removed node are eliminated using ceph osd crush rm <nodename>. 0. Replace a failed Ceph OSD with a metadata device as a logical volume path; Replace a failed Ceph OSD disk with a metadata device Dec 15, 2020 · 文章浏览阅读818次。该博客详细记录了如何将Ceph集群中的OSD（对象存储设备）从一个root（deootroot）迁移到另一个root（noahroot）下。首先通过`ceph osd crush remove`命令移除osd. [sourcecode language="bash" gutter="false"] # ceph osd crush remove osd. This means that Ceph clients avoid a centralized object look-up table that could act as a single point of failure, a performance bottleneck, a connection limitation at a centralized look-up server and a physical limit to the storage cluster’s scalability. 再次查看 ceph osd crush class ls 删除规则; ceph osd crush rule rm <rule-name> 5. 0踢出集群，执行：ceph osd crush remove osd. 132237, current state active Remove the OSD from the Ceph cluster ceph osd purge <ID> --yes-i-really-mean-it; Verify the OSD is removed from the node in the CRUSH map ceph osd tree; The operator can automatically remove OSD deployments that are considered “safe-to-destroy” by Ceph. sudo ceph osd crush remove osd. 1 osd. ceph osd out osd. Custom CRUSH rules can be created for a pool if the default rule does not fit your use case. service 删除 CRUSH 图的对应 OSD 条目，它就不再接收数据了 ceph osd crush remove osd. ## Nov 3, 2021 · 1. Wondering if this is related? Otherwise, "ceph osd tree" looks how I would expect (no osd. To remove it, you can run ceph osd crush remove {bucket-name} where the bucket name should be the hostname of the lost node. 11 版本增加OSDceph使用记录前言一、待安装节点操作步骤1. ca is stuck unclean for 1097. 否则提醒找不到 device '72' does not appear in the crush map 在ceph health检查时也会有提醒 HEALTH_WARN 1 osds exist in the crush map but not in the osdmap 应该这样写 ceph osd crush remove osd. Each time the OSD starts, it verifies it is in the correct location in the CRUSH map and, if it is not, it moved itself. Remove all Ceph OSD authentication keys running on the specified HOST. <ID> ceph osd rm <ID> To recheck that the Phantom OSD got removed, re-run the following command and check if the OSD with the ID doesn’t show up anymore: Dec 13, 2023 · 文章浏览阅读607次。本文详细介绍了如何在Ceph集群中安全地删除osd磁盘，包括标记、rm操作、集群状态检查，以及在crush算法和auth验证中的处理，同时涉及了IP-SAN和FC-SAN的区别以及iscsi在IP-SAN中的应用，最后展示了如何使用存储多路径技术进行HA和LB配置。 Dec 13, 2023 · 文章浏览阅读607次。本文详细介绍了如何在Ceph集群中安全地删除osd磁盘，包括标记、rm操作、集群状态检查，以及在crush算法和auth验证中的处理，同时涉及了IP-SAN和FC-SAN的区别以及iscsi在IP-SAN中的应用，最后展示了如何使用存储多路径技术进行HA和LB配置。 May 8, 2015 · 调整一OSD的crush权重： 要调整在线集群中一 OSD 的 CRUSH 权重，执行命令： ceph osd crush reweight {name} {weight} 删除OSD: 要从在线集群里把一 OSD 踢出 CRUSH 图，执行命令： ceph osd crush remove {name} 增加桶： 要在运行集群的 CRUSH 图中新建一个桶，用 ceph osd crush add-bucket 命令 Dec 27, 2017 · Hi to all. Remove all Ceph OSDs running on the specified HOST from Ceph cluster. 先降低osd权重为0，让数据自动迁移至其它osd，可避免out和crush remove操作时的两次水位平衡。水位平衡完成后，即用ceph -s查看到恢复HEALTH_OK状态后，再继续后续操作。 Remove the OSD from the Ceph cluster. 0' from crush map; Remove authentication keys related to the OSD: [root@mon ~]# ceph auth del osd. 获取待安装节点磁盘列表4. 参数说明 ceph osd pool create <pool-name> <pg-num> [pgp-num] [<options>] ceph osd out <ID> ceph osd crush remove osd. ## # ceph osd rm osd. 删除与OSD相关的身份验证密钥： # ceph auth del osd. {id} =>> Here use the correct ID of the OSD, repeat steps for all OSD to be removed, dont use {} in the command b. e. The best practice to remove an OSD involves changing the crush weight to 0. 17，然后在新的位置（ns-storage-020102. Aug 15, 2024 · Step2: Remove the OSD from the CRUSH Map. 60 ceph auth del osd. 如果还没有使用cephadm管理集群，此处你可以登录到vm2这台主机中手动的将他们的systemd守护进程disable。 When you need to remove an OSD from the CRUSH map, use ceph osd rm with the UUID. Instead, once the command successfully completes, the OSD will show marked as destroyed. 0' does not appear in the crush map # ceph auth del osd. Now that the OSD is marked out, its process is stopped, and it has been removed from the CRUSH map, you can delete the OSD entirely from the Ceph cluster. 删除 OSD . By following these best practices, you can successfully remove a node from a Proxmox Ceph cluster and maintain a healthy and efficient storage system. ceph osd tree 1. The easiest way to create and modify a CRUSH hierarchy is with the Ceph CLI; however, you can also decompile a CRUSH map, edit it, recompile it, and activate it. Remove item id 1 with the name 'osd. 1. service systemctl disable ceph-osd@4. 要在运行集群的 CRUSH Map 中新建 Feb 9, 2023 · If you follow the procedure regarding the OSD removal, you should always have enough redundancy. 0 3 - delete caps: ceph auth del osd. Ceph OSD Daemons write data to the disk and to journals. 3 从CRUSH中删除 已将osd. Remove the OSD from the CRUSH map: [root@mon ~]# ceph osd crush remove osd. If your host has multiple storage drives, you may need to remove one ceph-osd daemon for each drive. conf. crush 模块的源码路径为 src/crush, 其中. 要在运行集群的 CRUSH Map 中新建一个 Instead of removing the OSD from the CRUSH map, you might opt for one of two alternatives: (1) decompile the CRUSH map, remove the OSD from the device list, and remove the device from the host bucket; (2) remove the host bucket from the CRUSH map (provided that it is in the CRUSH map and that you intend to remove the host), recompile the map CRUSH 层次结构不同，因此 ceph osd crush add 命令允许您在您想要的 CRUSH 层次结构中添加 OSD。 您指定的位置 应 反映其实际位置。 如果您至少指定了一个存储桶，命令会将 OSD 放置到您指定的最特定的存储桶中， 并将该 存储桶移到您指定的任何其他存储桶下。 Dec 11, 2015 · Ceph: properly remove an OSD Sometimes removing OSD, if not done properly can result in double rebalancing. ceph osd crush remove rack12; 可调选项. g. After that, the Crush map should have no mention of the OSDs or node that are no more. You must prepare a Ceph OSD before you add it to the CRUSH hierarchy. 0 5、执行ceph auth del osd 下例从分级结构里删除了 rack12 。. 2 has already bound to class 'nvme', can not reset class to 'ssd'; use 'ceph osd crush rm-device-class <id>' to remove old class first': (16) Device or resource busy Dec 20 22:00:29 pve1 ceph-osd[4343]: 2021-12-20T22 Warning. 在 CRUSH 最初实现时加入的几个幻数，现在看来已成问题。 Jul 19, 2020 · 把新 OSD 加入 CRUSH Map 中，以便它可以开始接收数据。用 ceph osd crush add 命令把 OSD 加入 CRUSH 分级结构的合适位置。如果你指定了不止一个 bucket，此命令会把它加入你所指定的 bucket 中最具体的一个，并且把此 bucket 挪到你指定的其它 bucket 之内。 Adding and removing Ceph OSD Daemons to your cluster may involve a few more steps when compared to adding and removing other Ceph daemons. use 'ceph osd crush rm-device-class <id>' to remove old class first. 在设置新的 class ceph osd crush set-device-class ssd 7 3. com）使用`ceph osd crush add`重新添加它们。 Sep 14, 2022 · Remove the OSD from the Ceph cluster. Use this information to create a CRUSH rule for a replicated pool from the command-line. In QuantaStor, the "Delete Ceph Redundancy/CRUSH Rule" feature is used to remove an existing redundancy rule or CRUSH (Controlled Replication Under Scalable Hashing) rule that has been previously created for a Ceph storage cluster. How to remove Instead of removing the OSD from the CRUSH map, you might opt for one of two alternatives: (1) decompile the CRUSH map, remove the OSD from the device list, and remove the device from the host bucket; (2) remove the host bucket from the CRUSH map (provided that it is in the CRUSH map and that you intend to remove the host), recompile the map This command will not remove the OSD from crush, nor will it remove the OSD from the OSD map. 7 2. However, the OSD peering process requires the examination and understanding of old maps. Connect on the OSD server and check ceph status ceph -s; Removing an OSD is NOT recommended if the health is not HEALTH_OK; Set the OSD_ID with export OSD_ID=X Nov 3, 2021 · systemctl stop ceph-osd@osd-id. h 和 crush. 5这两个节点的状态变成了DOWN。接下来就可以从crush表中将他们移除。. You can reduce a Ceph OSD’s primary affinity so that CRUSH is less likely to choose the OSD as primary in a PG’s acting set. 6. Each pool that uses the CRUSH hierarchy (ruleset) where you add or remove a Ceph OSD node will experience a performance impact. 350+0100 7fbd20fa4f00 -1 osd. Sep 26, 2024 · ，数据和日志在同一个磁盘上的osd ，将osd. 启动mon3 ceph-mon --id=mon3 #启动osd ceph-osd --id=6 The crush location for an OSD is normally expressed via the crush location config option being set in the ceph. h 和 build. Just a heads up you can do those steps and then add an OSD back into the cluster with the same ID using the --osd-id option on ceph-volume. For example in the GUI under Node -> Ceph -> Configuration on the right side. 0 will fix it. 删除Host. Generally, it’s a good idea to check the Adding and removing Ceph OSD Daemons to your cluster may involve a few more steps when compared to adding and removing other Ceph daemons. <ID> SYSTEMD: systemctl stop ceph-osd@<ID> ceph osd crush remove osd. This command will not remove the OSD from crush, nor will it remove the OSD from the OSD map. <num> Later, we unmount the failed drive path: # umount /var/lib/ceph/{daemon}/{cluster}-{daemon-id} After that, we replace Removing an OSD from a CRUSH hierarchy is the first step when you want to remove an OSD from your cluster. But the OSD page displays 4 nodes - the removed node (with no OSD) along with the 3 real nodes. You can assign an override or reweight weight value to a specific OSD if the normal CRUSH distribution seems to be suboptimal. 0 配置文件如果有配置OSD则删除 # cat /etc/ceph/ceph. Instead of removing the OSD from the CRUSH map, you might opt for one of two alternatives: (1) decompile the CRUSH map, remove the OSD from the device list, and remove the device from the host bucket; (2) remove the host bucket from the CRUSH map (provided that it is in the CRUSH map and that you intend to remove the host), recompile the map You can assign an override or reweight weight value to a specific OSD if the normal CRUSH distribution seems to be suboptimal. 08800 pool=ssd_root rack=ssd_rack01 host=ssd_ceph4 ceph osd crush remove {name} 该步骤会触发数据的重新分布。 Aug 9, 2024 · This guide describes the host and rack buckets and their role in constructing a CRUSH Map with separate failure domains. 4. 4$ ceph osd crush remove osd. 删除掉crush map中已没有osd的host。 1. May 25, 2020 · 先降低osd权重为0，让数据自动迁移至其它osd，可避免out和crush remove操作时的两次水位平衡。 水位平衡完成后，即用ceph -s查看到恢复HEALTH_OK状态后，再继续后续操作。 注意：在生产环境下，若osd数据量较大，一次性对多个osd降权可能导致水位平衡幅度过大、云存储性能大幅降低，将影响正常使用。 因此，应分阶段逐步降低osd权重，例如：从1. 0移出crush map. 2 1257 mon_cmd_maybe_osd_create fail: 'osd. 划分SSD盘上的journal分区4. Removing an OSD from a CRUSH hierarchy is the first step when you want to remove an OSD from your cluster. docker 部署nexus并启用https ceph osd purge {id} --yes-i-really-mean-it ceph osd crush remove {name} ceph auth del osd. 删除 OSD. Removing an OSD from a CRUSH Hierarchy Removing an OSD from a CRUSH hierarchy is the first step when you want to remove 要调整在线集群中某个 OSD 的 CRUSH 权重，执行命令： ceph osd crush reweight {name} {weight} 9. crush_location = root=default row=a rack=a2 chassis=a2a host=a2a1. gs80140: ceph osd crush remove 72 这个写法有误哦,应该带上osd. The ceph osd crush add command allows you to add OSDs to the CRUSH hierarchy wherever you wish. 0 和 ceph osd rm 0,此时删除成功但是原来的数据和日志目录还在，也就是数据还在 Oct 11, 2022 · ceph osd crush rename-bucket <srcname> <dstname> 移动BUCKET： ceph osd crush move {bucket-name} {bucket-type}={bucket-name}, [] 移除BUCKET： ceph osd crush remove {bucket-name} ceph osd crush remove rack12. 65 osd. Create or delete a storage pool: ceph osd pool create || ceph osd pool delete Create a new storage pool with a name and number of placement groups with ceph osd pool create. 获取key文件2. , performance domains). 0 1. Use the force option when in use. If you would like to remove all the host’s OSDs as well, please start by using the ceph orch host drain command to do so. 要在运行集群的 CRUSH . vclound. 60 ceph osd crush remove osd. 4 Dec 19, 2019 · The OSDs should be removed with ceph osd purge {id} --yes-i-really-mean-it The node will also have an entry in the CRUSH map (Ceph -> Configuration in the GUI). Removing CRUSH rules Use this information to remove a CRUSH rule from the command-line. Stop the Salt Minion node on the specified HOST. 删除host，删除掉crush map中已没有osd的host： ceph osd crush remove <host> 参考资料. 安装ceph3. Regularly monitor your storage system for any inconsistencies or issues. Try this: 1 - mark out osd: ceph osd out osd. CRUSH 规则定义 Ceph 客户端如何选择 bucket 和它们内的Primary OSD 来存储对象，以及 Primary OSD 选择 bucket 和次要 OSD 来存储副本或编码区块的方式。 例如，您可以创建一个规则，为两个对象副本选择由 SSD 支持的一对目标 OSD，以及另一规则为三个副本选择由 SAS 驱动器 I could remove all osd from GUI but the last one didn't want to. 2' V. 配置ntp2. ceph osd tree; The operator can automatically remove OSD deployments that are considered "safe-to-destroy" by Ceph. 6 删除 OSD. 7. 8 ceph osd rm osd. 0 Each pool that uses the CRUSH hierarchy (ruleset) where you add or remove a Ceph OSD node will experience a performance impact. 0 5、执行ceph auth del osd. Sep 9, 2023 · 4、将osd. 11 Last step: remove it authorization (it should prevent problems with 'couldn’t add new osd with same number’): ceph Add the OSD to the CRUSH map so that the OSD can begin receiving data. Add the OSD to the CRUSH map so that the OSD can begin receiving data. How would one remove all traces of this defunct node? Mar 5, 2015 · Remove the OSD from Crush, OSD and Auth areas of Ceph:# ceph osd crush remove osd. 6. <ID> ceph auth del osd. This follows the same procedure as the procedure in the “Remove OSD” section, with one exception: the OSD is not permanently removed from the CRUSH hierarchy, but is instead assigned the destroyed flag. 0 2. 187%) pg 3. If you specify at least one bucket, the command will place the OSD into the most specific bucket you specify, and it will move that bucket underneath any other buckets you specify. Jun 18, 2024 · 先移除原来 osd 的 class ceph osd crush rm-device-class 7 2. 创建副本池规则： ceph osd crush rule create-replicated {name} {root} {failure-domain-type} [{class}] 创建EC池规则 The crush location for an OSD is normally expressed via the crush location config option being set in the ceph. 创建指定 CRUSH 的池. 5 收藏 分享 票数 0 EN When you want to reduce the size of a cluster or replace hardware, you may remove an OSD at runtime. 0 entity osd. After the steps above, the OSD will be considered safe to remove since the data has all 5 days ago · ceph osd crush tree: ceph osd crush rule ls: ceph osd pool create fast_ssd 32 32 onssd: ceph pg dump pgs_brief: ceph pg dump pgs_brief | grep ^46 #Pool ID: ceph osd lspools: ceph df: #Buckets: ceph osd crush add-bucket default-pool root: ceph osd crush add-bucket rack1 rack: ceph osd crush add-bucket rack2 rack: ceph osd crush add-bucket hosta CRUSH 规则定义 Ceph 客户端如何选择 bucket 以及其中的 Primary OSD 来存储对象，以及主要 OSD 选择存储桶和次要 OSD 以存储副本或编码区块的方式。 例如，您可以创建一个规则，为两个对象副本选择由 SSD 支持的一对目标 OSD，以及另一规则为三个副本选择由 SAS 驱动器 ceph osd crush add 21 0. 更换故障盘. 7 增加桶. 0 May 7, 2015 · d) Remove the OSD from the CRUSH map, so that it does not receive any data. ceph osd crush rm <nodename> ==> Here you give the node to be removed The above two shall remove the info from crush map. Warning. Pool Type and Durability: Replication pools tend to use more network bandwidth to replicate deep copies of the data, whereas erasure coded pools tend to use more CPU to calculate k+m coding chunks. So you need to provide a disk for the OSD and a path to the journal partition (i. 08800 pool=ssd_root rack=ssd_rack01 host=ssd_ceph4 ceph osd crush remove {name} 该步骤会触发数据的重新分布。 Mar 11, 2024 · ceph osd crush remove，Ceph是一个被广泛应用于分布式存储系统中的开源软件项目，而OSD（ObjectStorageDaemon）则是Ceph存储集群中的一个重要组件，负责管理数据的存储和恢复。在Ceph中，OSD的分布和管理是由CRUSH算法来实现的。 Dec 9, 2019 · Ceph 移除OSD. Add, remove, or reconfigure Ceph nodes; Add, remove, or reconfigure Ceph OSDs; Add, remove, or reconfigure Ceph OSDs with metadata devices; Replace a failed Ceph OSD; Replace a failed Ceph OSD with a metadata device. Just make sure that the remaining 3 nodes in the cluster have enough space to take up the data of the node that is removed. 5. Instead, carry out the following procedure: Remove the OSD from the CRUSH map so that it no longer receives data (for more details, see Remove an OSD): Sep 12, 2022 · Check out the Ceph documentation on how to manually remove an OSD. 1 removed item id 1 name 'osd. {id} Mar 20, 2018 · 二、删除osd. 0 root=default datacenter=dc1 room=room1 row=foo rack=bar host=foo-bar-1 sudo ceph osd crush reweight osd. <ID> ceph osd rm <ID> Achtung beim Löschen von Elementen aus der CRUSHMAP fängt der Ceph Cluster an die Verteilung wieder auszugleichen. disk replace) is rebalance by change osd ceph osd crush reweight osdid 0 cluster migrate data "from this osd" ceph osd out osd_id ceph osd crush remove osd_id ceph auth del osd_id ceph osd rm osd_id k May 30, 2022 · 汇总Ceph运维中遇到的问题 1. It is recommended to manually remove the associated CRUSH rule using ceph osd crush rule remove {rule-name} to avoid unexpected behavior. 6 reweighted item id 7 name 'osd. Enable the cleanup option to clean up the partition table and other structures Jan 23, 2020 · Here's what I suggest, instead of trying to add a new osd right away, fix/remove the defective one and it should re-create. but you need to remove from ceph config also use the following ceph osd rm osd. 5 ceph osd destroy osd. 5 ceph osd safe-to-destroy osd. 0 The CRUSH location for an OSD can be set by adding the crush_location option in ceph. When you remove the OSD from the CRUSH map, CRUSH recomputes which OSDs get the placement groups and data re-balances accordingly. In order to mark an OSD as destroyed, the OSD must first be marked as lost. 2 has already bound to class 'nvme', can not reset class to 'ssd'; use 'ceph osd crush rm-device-class <id>' to remove old class first': (16) Device or resource busy Dec 20 22:00:29 pve1 ceph-osd[4343]: 2021-12-20T22 Dec 29, 2019 · 增加/删除 osd增加 osd部署硬件安装必要软件增加 osd （手动）启动 osd观察数据迁移删除 osd （手动）把 osd 踢出集群观察数据迁移停止 osd删除 osd ceph是一个统一的分布式存储系统，设计初衷是提供较好的性能、可靠性和可扩展性。 Dec 21, 2016 · ceph osd out osd. 0 从crush中删除是告诉集群这个点回不来了，完全从集群的分布当中剔除掉，让集群的crush进行一次重新计算，之前节点还占着这个crush weight，会影响到当前主机的host crush weight Dec 29, 2019 · ceph osd crush remove rack12; Creating a compat weight set. sudo ceph osd crush set osd. 删除 CRUSH Map 中的对应 OSD # ceph osd crush remove osd. 0 8. c: 实现了如何构造 crush_map 数据结构 bash-4. Remove the OSD from the Ceph cluster. 0 5、执行ceph auth del osd Remove the OSD from the CRUSH map: [root@mon ~]# ceph osd crush remove osd. 3. Each time the OSD starts, it verifies it is in the correct location in the CRUSH map and, if it is not, it moves itself. 0 5、执行ceph auth del osd Dec 14, 2023 · 文章浏览阅读453次。本文详细描述了在Ceph环境中删除OSD磁盘的步骤，包括标记、停止服务、rm命令、crush算法和auth验证，以及在SAN环境中使用iSCSI和多路径绑定的配置和测试。 The CRUSH map is a directed acyclic graph, so it may accommodate multiple hierarchies (e. You will also see a bucket in the CRUSH Map for the node itself. If the CRUSH tunables are set to newer (non-legacy) values and subsequently reverted to the legacy values, ceph-osd daemons will not be required to support any of the newer CRUSH features associated with the newer (non-legacy) values. Remove all Ceph OSDs running on the Delete a Ceph CRUSH Rule. 1 [/sourcecode] e) Remove the OSD Nov 2, 2017 · ceph osd out <ID> INITV: service ceph stop osd. Repair Remove the OSD from the Ceph cluster. 这个是从集群里面删除这个节点的记录 6、删除节点认证（不删除编号会占住） ceph auth del osd. conf file. 0 as first step. 0 osd. 6 对磁盘进行格式化并删除 Jul 30, 2018 · 用户在删除OSD之前运行这些命令，通过命令返回的内容，就可以判断删除操作是否能够确保数据安全。 另外在删除OSD的时候，官方也提供了2种类型的操作，一种是使用ceph osd destroy去替换故障磁盘，一种是彻底删除OSD，具体说明如下 Jan 23, 2025 · ceph使用记录 自己使用ceph的使用记录 ceph 10. You can also get the crushmap, de-compile it, remove the OSD, re-compile, and upload it back. 5 取消挂载 umount / var /lib/ceph/osd/ceph-0 但是盘还在。 2. To remove an OSD from the CRUSH map of a Preflight checklist. CRUSH 层次结构不重要，因此 ceph osd crush add 命令允许您根据需要将 OSD 添加到 CRUSH 层次结构中。 您指定的位置 应 反映其实际位置。 如果您至少指定了一个存储桶，命令会将 OSD 放入您指定的最具体的存储桶中， 并 将它移到您指定的任何其他 bucket 下。 Dec 28, 2019 · a. 0踢出集群，执行 ceph osd out 0 4、然后执行：ceph osd crush remove osd. This daemon might map to a single storage device, a pair of devices (for example, one for data and one for a journal or metadata), or in some cases a small RAID device or a partition of a larger storage device. 8 ceph auth del osd. Apr 18, 2016 · Dec 20 22:00:28 pve1 ceph-osd[3991]: 2021-12-20T22:00:28. 0 5、执行ceph auth del osd Oct 8, 2018 · ，数据和日志在同一个磁盘上的osd ，将osd. Once a Ceph cluster is configured with the expected CRUSh Map and Rule, the PGs of the designated pool are verified with a script (utils-checkPGs. 标记osd为out： ceph osd out osd. ceph osd crush remove osd. 0 does not exist. 10已经不再osd tree中了 ceph osd crush remove osd. After marking the OSD as out and stopping the pod, remove the OSD from the CRUSH ceph osd crush add 21 0. 2 移除故障盘. 0 device 'osd. 0 does not exist # ceph osd rm 0 osd. 60 ceph osd rm osd. 6 in crush map $ ceph health detail HEALTH_WARN 2 pgs backfilling; 2 pgs stuck unclean; recovery 17117/9160466 degraded (0. 0 removed item id 0 name 'osd. Apr 20, 2018 · ceph auth add osd. CRUSH rules define how a Ceph client selects buckets and the primary OSD within them to store object, and how the primary OSD selects buckets and the secondary OSDs to store replicas (or coding chunks). 从CRUSH MAP中删除OSD： # ceph osd crush remove osd. 0 2） 删除在集群中的信息 sudo ceph osd rm 0 2. : ceph osd primary-affinity <osd-id> <weight> You may set an OSD’s primary affinity to a real number in the range [0-1] , where 0 indicates that the OSD may NOT be used as a primary and 1 indicates that an OSD may be The crush location for an OSD is normally expressed via the crush location config option being set in the ceph. After the steps above, the OSD will be considered safe to remove since the data has all Aug 28, 2020 · # ceph osd purge 0 --yes-i-really-mean-it purged osd. activate osd Dec 5, 2018 · 要调整在线集群中某个 OSD 的 CRUSH 权重，执行命令： ceph osd crush reweight {name} {weight} 7. Before removing the old node, I marked the associated OSD out, and waited for 100% "active and clean" state. New in version 0. Replace OSD_NUMBER with the ID of the OSD that is marked as down, for example: [root@mon ~]# ceph osd crush remove osd. 4 从集群中将osd移除 1） 删除秘钥信息 sudo ceph auth del osd. c: crush map 的基本数据结构; build. 1' from crush map Step 3: Deleting the OSD from the Ceph Cluster. 6，等待数据水位平衡后再降低至0。 登录对应节点，停止osd服务。 2. , this is the most common configuration, but you may configure your Nov 10, 2016 · ，数据和日志在同一个磁盘上的osd ，将osd. {id} ceph osd rm {id} That should completely remove the OSD from your system. 查看已经没有osd. <num> Then we remove the OSD’s authentication keys: # ceph auth del osd. 要从在线集群里把某个 OSD 彻底踢出 CRUSH Map，或仅踢出某个指定位置的 OSD，执行命令： #从 crush map 中删除一个 osd $ ceph osd crush rm osd. 8. Usage: In most cases, each device maps to a corresponding ceph-osd daemon. Oct 17, 2019 · 4、从crush中移除节点. Moving an OSD within a CRUSH Hierarchy If the storage cluster topology changes, you can move an OSD in the CRUSH hierarchy to reflect its actual location. 增加桶. 删除节点认证（不删除编号会占住） ceph auth del osd. 0 这个是从crush中删除，因为已经是0了 所以没影响主机的权重，也就没有迁移了. 要从在线集群里把某个 OSD 彻底踢出 CRUSH Map，或仅踢出某个指定位置的 OSD，执行命令： ceph osd crush remove {name} {<ancestor>} 9. ceph osd rm osd. <OSD-number> 替换 <OSD-number> 为标记为的OSD的ID down Oct 22, 2022 · sudo ceph osd out 0 2. 增加桶 . and yes, i have 32 other OSDs in total right now; I don't mind ceph doing a Dec 5, 2019 · 3. 要在运行集群的 CRUSH Map 中新建一个桶，用 ceph osd crush add-bucket 命令： ceph Generic way for maintenance (e. It was when I started the remove procedure that I ended up with this hung "deleting" situation. 划分数据盘二、monitor节点操作步骤1. 0,此时osd. Usage: If the OSDMap currently used by the ceph-mon or ceph-osd daemon has non-legacy values, it will require the CRUSH_TUNABLES or CRUSH_TUNABLES2 feature bits from clients and daemons who connect to it. 0 0. 2. Purge CEPH packages from the specified HOST. 删除osd在ceph集群的认证： ceph auth del osd. tmkgxxqovyxgcvokhtgxxgjbohbguoecagvghxroiqxnrmtjs