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  • 清除已安装的rookceph集群

    官方文档地址:https://rook.io/docs/rook/v1.8/ceph-teardown.html

    如果要拆除群集并启动新群集,请注意需要清理的以下资源:

    • rook-ceph namespace: The Rook operator and cluster created by operator.yaml and cluster.yaml (the cluster CRD)
    • /var/lib/rook: Path on each host in the cluster where configuration is cached by the ceph mons and osds # 每一个主机的该目录需要删除

    删除现有的资源

    kubectl delete -n rook-ceph cephblockpool replicapool
    kubectl delete storageclass rook-ceph-block
    kubectl delete storageclass csi-cephfs
    
    kubectl -n rook-ceph delete cephcluster rook-ceph
    
    kubectl delete -f operator.yaml
    kubectl delete -f common.yaml
    kubectl delete -f crds.yaml
    

    删除每个主机中的/var/lib/rook目录(默认是这个目录)

    删除磁盘数据

    
    # yum -y install gdisk
    
    #!/usr/bin/env bash
    DISK="/dev/sdb" # 修改具体的磁盘
    
    # Zap the disk to a fresh, usable state (zap-all is important, b/c MBR has to be clean)
    
    # You will have to run this step for all disks.
    sgdisk --zap-all $DISK
    
    # Clean hdds with dd # 机械磁盘使用这个命令清除磁盘数据
    dd if=/dev/zero of="$DISK" bs=1M count=100 oflag=direct,dsync
    
    # Clean disks such as ssd with blkdiscard instead of dd # 固态磁盘使用这个命令清除磁盘数据,若不是固态磁盘则会提示不支持这一步操作
    blkdiscard $DISK
    
    # These steps only have to be run once on each node
    # If rook sets up osds using ceph-volume, teardown leaves some devices mapped that lock the disks.
    ls /dev/mapper/ceph-* | xargs -I% -- dmsetup remove %
    
    # ceph-volume setup can leave ceph-<UUID> directories in /dev and /dev/mapper (unnecessary clutter)
    rm -rf /dev/ceph-*
    rm -rf /dev/mapper/ceph--*
    
    # Inform the OS of partition table changes
    partprobe $DISK
    
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  • 原文地址:https://www.cnblogs.com/sanduzxcvbnm/p/15767248.html
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