世界杯外围投注官网
2016-09-03
cephrbd对象组成。
/* New-style rbd image &世界杯外围投注官网39;foo&世界杯外围投注官网39; consists of objects * rbd_id.foo - id of image * rbd_header.- image metadata * rbd_object_map. - optional image object map * rbd_data. .00000000 * rbd_data. .00000001 * ... - data */ 世界杯外围投注官网define RBD_HEADER_PREFIX "rbd_header." 世界杯外围投注官网define RBD_OBJECT_MAP_PREFIX "rbd_object_map." 世界杯外围投注官网define RBD_DATA_PREFIX "rbd_data." 世界杯外围投注官网define RBD_ID_PREFIX "rbd_id." /* * old-style rbd image &世界杯外围投注官网39;foo&世界杯外围投注官网39; consists of objects * foo.rbd - image metadata * rb. . .00000000 * rb. . .00000001 * ... - data */ 世界杯外围投注官网define RBD_SUFFIX ".rbd" 世界杯外围投注官网define RBD_DIRECTORY "rbd_directory" 世界杯外围投注官网define RBD_INFO "rbd_info" /* * rbd_children object in each pool contains omap entries * that map parent (poolid, imageid, snapid) to a list of children * (imageids; snapids aren&世界杯外围投注官网39;t required because we get all the snapshot * info from a read of the child&世界杯外围投注官网39;s header object anyway). * * The clone operation writes a new item to this child list, and rm or * flatten removes an item, and may remove the whole entry if no children * exist after the rm/flatten. * * When attempting to remove a parent, all pools are searched for * rbd_children objects with entries referring to that parent; if any * exist (and those children exist), the parent removal is prevented. */ 世界杯外围投注官网define RBD_CHILDREN "rbd_children" 老镜像格式: 导入数据创建镜像使用默认镜像格式 [root@ceph-osd-241 ~]世界杯外围投注官网 rbd -p liyankun import BIOS_CR1RR_LN_2.5.4.BIN test Importing image: 100% complete...done. [root@ceph-osd-241 ~]世界杯外围投注官网 rados -p liyankun ls rb.0.bbca0.74b0dc51.000000000007 rb.0.bbca0.74b0dc51.000000000001 rb.0.bbca0.74b0dc51.000000000008 rb.0.bbca0.74b0dc51.000000000005 //data test.rbd //镜像的metadata rbd_directory rb.0.bbca0.74b0dc51.000000000004 rb.0.bbca0.74b0dc51.000000000010 rb.0.bbca0.74b0dc51.00000000000f rb.0.bbca0.74b0dc51.000000000006 rb.0.bbca0.74b0dc51.00000000000b rb.0.bbca0.74b0dc51.000000000003 rb.0.bbca0.74b0dc51.000000000009 rb.0.bbca0.74b0dc51.00000000000e rb.0.bbca0.74b0dc51.00000000000d rb.0.bbca0.74b0dc51.00000000000c rb.0.bbca0.74b0dc51.00000000000a rb.0.bbca0.74b0dc51.000000000002 rb.0.bbca0.74b0dc51.000000000000 对镜像创建快照 [root@ceph-osd-241 ~]世界杯外围投注官网 rbd --pool liyankun snap create --snap testsnap test 镜像快照创建成功 [root@ceph-osd-241 ~]世界杯外围投注官网 rbd -p liyankun snap ls test SNAPID NAME SIZE 4 testsnap 65553 kB 查看对象个数是否发生变化 [root@ceph-osd-241 ~]世界杯外围投注官网 rados -p liyankun ls rb.0.bbca0.74b0dc51.000000000007 rb.0.bbca0.74b0dc51.000000000001 rb.0.bbca0.74b0dc51.000000000008 rb.0.bbca0.74b0dc51.000000000005 test.rbd rbd_directory rb.0.bbca0.74b0dc51.000000000004 rb.0.bbca0.74b0dc51.000000000010 rb.0.bbca0.74b0dc51.00000000000f rb.0.bbca0.74b0dc51.000000000006 rb.0.bbca0.74b0dc51.00000000000b rb.0.bbca0.74b0dc51.000000000003 rb.0.bbca0.74b0dc51.000000000009 rb.0.bbca0.74b0dc51.00000000000e rb.0.bbca0.74b0dc51.00000000000d rb.0.bbca0.74b0dc51.00000000000c rb.0.bbca0.74b0dc51.00000000000a rb.0.bbca0.74b0dc51.000000000002 rb.0.bbca0.74b0dc51.000000000000 保护快照防止数据丢失,为clone做准备,从输出信息可以得知该功能没有实现 [root@ceph-osd-241 ~]世界杯外围投注官网 rbd -p liyankun snap protect --image test --snap testsnap rbd: protecting snap failed: (38) Function not implemented 2016-09-02 11:40:32.276782 7f44a6c0e760 -1 librbd: snap_protect: image must support layering 从创建的快照中克隆一个镜像,由于image-format 1 不支持clone,所以失败。 [root@ceph-osd-241 ~]世界杯外围投注官网 rbd -p liyankun clone --image test --snap testsnap --dest-pool liyankun --dest test_child 2016-09-02 11:43:47.685116 7f6db89b1760 -1 librbd: parent image must be in new format rbd: clone error: (22) Invalid argument 确定当前的image format为 1 [root@ceph-osd-241 ~]世界杯外围投注官网 rbd -p liyankun info test rbd image &世界杯外围投注官网39;test&世界杯外围投注官网39;: size 65553 kB in 17 objects order 22 (4096 kB objects) block_name_prefix: rb.0.bbca0.74b0dc51 format: 1 [root@ceph-osd-241 ~]世界杯外围投注官网 新镜像格式: 清除环境重新导入镜像,镜像格式指定为 2 [root@ceph-osd-241 ~]世界杯外围投注官网 rbd -p liyankun import BIOS_CR1RR_LN_2.5.4.BIN test --image-format 2 Importing image: 100% complete...done. [root@ceph-osd-241 ~]世界杯外围投注官网 rados -p liyankun ls rbd_data.bbe1d74b0dc51.0000000000000010 rbd_data.bbe1d74b0dc51.0000000000000004 rbd_data.bbe1d74b0dc51.0000000000000003 rbd_data.bbe1d74b0dc51.0000000000000002 rbd_data.bbe1d74b0dc51.0000000000000006 rbd_data.bbe1d74b0dc51.000000000000000a rbd_data.bbe1d74b0dc51.000000000000000b rbd_data.bbe1d74b0dc51.000000000000000d rbd_directory rbd_data.bbe1d74b0dc51.0000000000000000 rbd_data.bbe1d74b0dc51.0000000000000007 //data rbd_data.bbe1d74b0dc51.000000000000000e rbd_header.bbe1d74b0dc51 //image metadata rbd_data.bbe1d74b0dc51.0000000000000005 rbd_data.bbe1d74b0dc51.0000000000000009 rbd_data.bbe1d74b0dc51.000000000000000f rbd_data.bbe1d74b0dc51.0000000000000001 rbd_id.test //id of image rbd_data.bbe1d74b0dc51.000000000000000c rbd_data.bbe1d74b0dc51.0000000000000008 创建镜像快照 [root@ceph-osd-241 ~]世界杯外围投注官网 rbd --pool liyankun snap create --snap testsnap test 保护镜像 [root@ceph-osd-241 ~]世界杯外围投注官网 rbd -p liyankun snap protect --image test --snap testsnap 从镜像的快照中克隆出新的镜像 [root@ceph-osd-241 ~]世界杯外围投注官网 rbd clone -p liyankun --image test --snap testsnap --dest-pool liyankun --dest test_child [root@ceph-osd-241 ~]世界杯外围投注官网 rados -p liyankun ls rbd_data.bbe1d74b0dc51.0000000000000010 rbd_data.bbe1d74b0dc51.0000000000000004 rbd_data.bbe1d74b0dc51.0000000000000003 rbd_data.bbe1d74b0dc51.0000000000000002 rbd_data.bbe1d74b0dc51.0000000000000006 rbd_header.bb0e62ae8944a rbd_children rbd_data.bbe1d74b0dc51.000000000000000a rbd_data.bbe1d74b0dc51.000000000000000b rbd_data.bbe1d74b0dc51.000000000000000d rbd_directory rbd_data.bbe1d74b0dc51.0000000000000000 rbd_data.bbe1d74b0dc51.0000000000000007 rbd_data.bbe1d74b0dc51.000000000000000e rbd_header.bbe1d74b0dc51 rbd_data.bbe1d74b0dc51.0000000000000005 rbd_data.bbe1d74b0dc51.0000000000000009 rbd_data.bbe1d74b0dc51.000000000000000f rbd_id.test_child rbd_data.bbe1d74b0dc51.0000000000000001 rbd_id.test rbd_data.bbe1d74b0dc51.000000000000000c rbd_data.bbe1d74b0dc51.0000000000000008 查看镜像格式 [root@ceph-osd-241 ~]世界杯外围投注官网 rbd -p liyankun info test rbd image &世界杯外围投注官网39;test&世界杯外围投注官网39;: size 65553 kB in 17 objects order 22 (4096 kB objects) block_name_prefix: rbd_data.bbe1d74b0dc51 format: 2 features: layering flags: 列举rbd_children omap对象中的keys [root@ceph-osd-241 ~]世界杯外围投注官网 rados -p liyankun listomapkeys rbd_children bbe1d74b0dc51 列举rbd_children omap对象中的keys and values [root@ceph-osd-241 ~]世界杯外围投注官网 rados -p liyankun listomapvals rbd_children key (33 bytes): 0000 : 10 00 00 00 00 00 00 00 0d 00 00 00 62 62 65 31 : ............bbe1 0010 : 64 37 34 62 30 64 63 35 31 06 00 00 00 00 00 00 : d74b0dc51....... 0020 : 00 : . value (21 bytes) : 0000 : 01 00 00 00 0d 00 00 00 62 62 30 65 36 32 61 65 : ........bb0e62ae 0010 : 38 39 34 34 61 : 8944a [root@ceph-osd-241 ~]世界杯外围投注官网 rados -p liyankun ls rbd_data.bbe1d74b0dc51.0000000000000010 rbd_data.bbe1d74b0dc51.0000000000000004 rbd_data.bbe1d74b0dc51.0000000000000003 rbd_data.bbe1d74b0dc51.0000000000000002 rbd_data.bbe1d74b0dc51.0000000000000006 rbd_header.bb0e62ae8944a rbd_children rbd_data.bbe1d74b0dc51.000000000000000a rbd_data.bbe1d74b0dc51.000000000000000b rbd_data.bbe1d74b0dc51.000000000000000d rbd_directory rbd_data.bbe1d74b0dc51.0000000000000000 rbd_data.bbe1d74b0dc51.0000000000000007 rbd_data.bbe1d74b0dc51.000000000000000e rbd_header.bbe1d74b0dc51 rbd_data.bbe1d74b0dc51.0000000000000005 rbd_data.bbe1d74b0dc51.0000000000000009 rbd_data.bbe1d74b0dc51.000000000000000f rbd_id.test_child rbd_data.bbe1d74b0dc51.0000000000000001 rbd_id.test rbd_data.bbe1d74b0dc51.000000000000000c rbd_data.bbe1d74b0dc51.0000000000000008 [root@ceph-osd-241 ~]世界杯外围投注官网 rados -p liyankun stat rbd_id.test_child liyankun/rbd_id.test_child mtime 2016-09-02 13:34:00.000000, size 17 [root@ceph-osd-241 ~]世界杯外围投注官网 rados -p liyankun ls | grep header rbd_header.bb0e62ae8944a rbd_header.bbe1d74b0dc51 查看rbd_childre omap对象内容,确定镜像之间的父子关系维护在rbd_children omap对象中。 [root@ceph-osd-241 ~]世界杯外围投注官网 rados -p liyankun listomapvals rbd_children key (33 bytes): 0000 : 10 00 00 00 00 00 00 00 0d 00 00 00 62 62 65 31 : ............bbe1 0010 : 64 37 34 62 30 64 63 35 31 06 00 00 00 00 00 00 : d74b0dc51....... 0020 : 00 : . value (21 bytes) : 0000 : 01 00 00 00 0d 00 00 00 62 62 30 65 36 32 61 65 : ........bb0e62ae 0010 : 38 39 34 34 61 : 8944a [root@ceph-osd-241 ~]世界杯外围投注官网 如果一个镜像是克隆而来,那么他的格式和父镜像格式一致。 [root@ceph-osd-241 ~]世界杯外围投注官网 rbd -p liyankun info test_child rbd image &世界杯外围投注官网39;test_child&世界杯外围投注官网39;: size 65553 kB in 17 objects order 22 (4096 kB objects) block_name_prefix: rbd_data.bb0e62ae8944a format: 2 features: layering flags: parent: liyankun/test@testsnap overlap: 65553 kB
最新文章
- RubyGems库发现了后门版本的网站开发工具bootstrap-s
- 518云盒:挂机宝告诉怎样学好web前端开发-518云盒的博
- 安全的文件传输解决方案如何获得?-镭速云-51CTO博客
- 在IDC回收服务器,如何做到安全快捷-高哲的博客-51CT
- kubernetes1.13.3版本升级至1.14.1版本-李永峰的博客
- 62.AzureAI+机器学习综合能力展现之视频索引器-ZJUNS
- PDF小技巧如何在PDF上添加水印-办公分享的博客-51CTO
- 云服务器和vps区别-18511581739的博客-51CTO博客
- 什么是“容器技术”?为什么它对物联网和云计算如此重
- 香港服务器租用的误区都有哪些?-宵云建站的博客-51C
热点推荐