rbd-nbdis a client for RADOS block device (rbd) images like rbd kernel module. It will map a rbd image to a nbd (Network Block Device) device, allowing access it as regular local block device. Image and snap specs image-specis [pool-name]/image-name ...
不用担心接口的问题了,因为只要librbd支持的属性,nbd就默认支持了 查询rbd和nbd对应关系 [root@lab101 mnt]# rbd-nbd list-mapped/dev/nbd0 [root@lab101 mnt]# cat /sys/block/nbd0/pid93059 [root@lab101 mnt]# ps -ef|grep 93059root 93059 1 0 14:30 pts/1 00:00:00 rbd-nbd map testnbd ...
rbd feature disable test_pool/test_image exclusive-lock,object-map,fast-diff,deep-flatten dmesg image uses unsupported features:0x40不支持特性0x40=64,也就是不支持特性 journaling #rbd-nbd用户态 yum install kmod-nbd yum install rbd-nbd sudo rbd-nbd map test_pool/test_image RBD特性解析 RBD支持...
# 新建测试设备root@cld-test:~# qemu-img create -f raw rbd:aquarius-sas-img/test-nbd1:id=docker 20G## 映射## 格式为:rbd-nbd [pool名]/[rbd名称]root@cld-test:~# rbd-nbd map aquarius-sas-img/test-nbd1## 检查是否出现这个块设备root@cld-test:~# lsblkNAME MAJ:MIN RM SIZE RO TYPE...
rbd: map failed: (6) No such device or address 1. 2. 3. 4. 5. 如果非要用,就默认禁用掉这些属性,在配置文件增加 rbd_default_features = 3 那么现在开启属性还行想用块设备方式怎么用,就可以用nbd了 [root@lab8106 ~]# rbd-nbd map rbd/testnbdrbd ...
Maybe there are more than one nbd mapped to same image, but used by different apps: some for write, and some for read. I prefer give the users this flexibility. Contributor Author bellaalleb commented Jul 24, 2017 Maybe map the image and send a warning to user? Contributor scienceluo ...
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username@hostname:/# fio -filename=/dev/nbd0 -direct=1 -iodepth=128 -rw=randwrite -ioengine=libaio -bs=4k -time_based -numjobs=1 -name="test" -runtime=3 test: (g=0): rw=randwrite, bs=4K-4K/4K-4K/4K-4K, ioengine=libaio, iodepth=128 ...
root@cld-test:~# qemu-img create -f raw rbd:aquarius-sas-img/test-nbd1:id=docker 20G ## 映射 ## 格式为：rbd-nbd [pool名]/[rbd名称]root@cld-test:~# rbd-nbd map aquarius-sas-img/test-nbd1 ## 检查是否出现这个块设备 root@cld-test:~# lsblk NAME MAJ:MIN RM SIZE RO TYPE...
krbdorrbd-nbd) : krbd Kubernetes cluster version : all Ceph cluster version : all Steps to reproduce Steps to reproduce the behavior: Create a chain of clones/ snapshot+restores Delete parent snapshot/clone immediately after child pvc/snapshot creation ...