例子
1 | modprobe rbd |
如果你在执行echo
时候提示参数错误,请现查看modinfo rbd
看看里面的single_major
默认值是否为false
eg:1
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17 modinfo rbd
filename: /lib/modules/3.10.0-693.el7.x86_64/kernel/drivers/block/rbd.ko.xz
license: GPL
description: RADOS Block Device (RBD) driver
author: Jeff Garzik <jeff@garzik.org>
author: Yehuda Sadeh <yehuda@hq.newdream.net>
author: Sage Weil <sage@newdream.net>
author: Alex Elder <elder@inktank.com>
rhelversion: 7.4
srcversion: B41E51769EC95E3DBDB16AB
depends: libceph
intree: Y
vermagic: 3.10.0-693.el7.x86_64 SMP mod_unload modversions
signer: CentOS Linux kernel signing key
sig_key: DA:18:7D:CA:7D:BE:53:AB:05:BD:13:BD:0C:4E:21:F4:22:B6:A4:9C
sig_hashalgo: sha256
parm: single_major:Use a single major number for all rbd devices (default: false) (bool)
如果single_major
默认值为ture
,那么在加载rbd模块时,需要将single_major
设置成false
eg:1
modprobe rbd single_major=0
然后在重新执行echo
。
解释
- 192.168.1.234 为 Monitor 地址
- name,制定使用的用户,可通过“ceph auth list” 查看
- secret,name制定用户所对应的 key 值
- rbd,制定需要映射的块设备(该快设备必须是已经创建好的)
- 使用客户端内核必须支持rbd.ko这个内核模块
- 1, 设备ID,用于去映射