修改crush映射图

[root@cluster9 ceph-cluster]# cd /etc/ceph/
[root@cluster9 ceph]# ceph osd getcrushmap -o /etc/ceph/crushmap
18
[root@cluster9 ceph]# crushtool -d /etc/ceph/crushmap -o /etc/ceph/crushmap.txt
[root@cluster9 ceph]# sed -i 's/step chooseleaf firstn 0 type host/step chooseleaf firstn 0 type osd/' /etc/ceph/crushmap.txt
[root@cluster9 ceph]# grep 'step chooseleaf' /etc/ceph/crushmap.txt
    step chooseleaf firstn 0 type osd
[root@cluster9 ceph]# crushtool -c /etc/ceph/crushmap.txt -o /etc/ceph/crushmap-new
[root@cluster9 ceph]# ceph osd setcrushmap -i /etc/ceph/crushmap-new
19

https://www.cnblogs.com/boshen-hzb/p/13305560.html

mkdir crush
cd crush
ceph osd getcrushmap -o crushmap.bin
crushtool -d crushmap.bin -o crushmap.txt
cat crushmap.txt 
sed -i 's/step chooseleaf firstn 0 type host/step chooseleaf firstn 0 type osd/' crushmap.txt 
cat crushmap.txt 
crushtool -c crushmap.txt -o crushmap-new.bin
ceph osd setcrushmap -i crushmap-new.bin 
ceph osd crush dump
ceph -s