- 今天遇到一个华三 CAS虚拟化安装 RAC的需求,再绑定 UDEV的时候,不知道使用哪个设备号。
小提示:cas 添加virtio设备时,需要严格按照磁盘编号顺序添加,因为生成的 virtio-63c2ed35-b014-11e800 设备序列号,是按照添加顺序生成的,也就是说两个虚拟机如果添加顺序不一致,会导致设备序列号不一致,那么安装RAC也会失败。
[root@db01 crs]# ls -l /dev/disk/by-id/ total 0 lrwxrwxrwx 1 root root 9 Aug 25 12:30 ata-QEMU_DVD-ROM_63c2ed35-b014-11e812 -> ../../sr0 lrwxrwxrwx 1 root root 10 Aug 25 12:30 dm-name-centos-home -> ../../dm-2 lrwxrwxrwx 1 root root 10 Aug 25 12:30 dm-name-centos-root -> ../../dm-0 lrwxrwxrwx 1 root root 10 Aug 25 12:30 dm-name-centos-swap -> ../../dm-1 lrwxrwxrwx 1 root root 10 Aug 25 12:40 dm-name-oracle-lv_oracle -> ../../dm-3 lrwxrwxrwx 1 root root 10 Aug 25 12:30 dm-uuid-LVM-elVfpHiKJTj6nuW33hGLxDETn1wljA5lFY4Ax2a0MJdpzRUv5ERBcSqFCdl4T700 -> ../../dm-0 lrwxrwxrwx 1 root root 10 Aug 25 12:30 dm-uuid-LVM-elVfpHiKJTj6nuW33hGLxDETn1wljA5lnBNMQjy4s50kWeI2aqrEE3a5UQKY6I1S -> ../../dm-2 lrwxrwxrwx 1 root root 10 Aug 25 12:30 dm-uuid-LVM-elVfpHiKJTj6nuW33hGLxDETn1wljA5lWbCE2X8uk3thfr8Y7ESslDaFaNgFmXUR -> ../../dm-1 lrwxrwxrwx 1 root root 10 Aug 25 12:40 dm-uuid-LVM-MA5aknGLuxPfV0AEZP2Ljyk1furkZANKbrUZF1HbZgOcJV44LuTj2fxpPEvSlt4T -> ../../dm-3 lrwxrwxrwx 1 root root 9 Aug 25 12:40 lvm-pv-uuid-3fZuqq-dNJd-Dre1-WPMC-M3kM-OgOc-otg18J -> ../../vdb lrwxrwxrwx 1 root root 10 Aug 25 12:30 lvm-pv-uuid-rgQnB2-ak6T-Iqfb-LtXL-YAlf-BT4T-TUtLDr -> ../../vda2 lrwxrwxrwx 1 root root 9 Aug 25 12:30 virtio-63c2ed35-b014-11e800 -> ../../vda lrwxrwxrwx 1 root root 10 Aug 25 12:30 virtio-63c2ed35-b014-11e800-part1 -> ../../vda1 lrwxrwxrwx 1 root root 10 Aug 25 12:30 virtio-63c2ed35-b014-11e800-part2 -> ../../vda2 lrwxrwxrwx 1 root root 9 Aug 25 14:33 virtio-63c2ed35-b014-11e815 -> ../../vdf lrwxrwxrwx 1 root root 9 Aug 25 14:33 virtio-63c2ed35-b014-11e816 -> ../../vdg lrwxrwxrwx 1 root root 9 Aug 25 14:33 virtio-63c2ed35-b014-11e817 -> ../../vdh lrwxrwxrwx 1 root root 9 Aug 25 14:33 virtio-63c2ed35-b014-11e818 -> ../../vdi lrwxrwxrwx 1 root root 9 Aug 25 14:33 virtio-63c2ed35-b014-11e819 -> ../../vdj lrwxrwxrwx 1 root root 9 Aug 25 14:33 virtio-63c2ed35-b014-11e820 -> ../../vdk lrwxrwxrwx 1 root root 9 Aug 25 14:33 virtio-63c2ed35-b014-11e821 -> ../../vdl lrwxrwxrwx 1 root root 9 Aug 25 14:33 virtio-63c2ed35-b014-11e822 -> ../../vdm lrwxrwxrwx 1 root root 9 Aug 25 14:33 virtio-63c2ed35-b014-11e823 -> ../../vdn lrwxrwxrwx 1 root root 9 Aug 25 12:40 virtio-63c2ed35-b014-11e824 -> ../../vdb lrwxrwxrwx 1 root root 9 Aug 25 14:33 virtio-63c2ed35-b014-11e826 -> ../../vdc lrwxrwxrwx 1 root root 9 Aug 25 14:33 virtio-63c2ed35-b014-11e827 -> ../../vdd lrwxrwxrwx 1 root root 9 Aug 25 14:33 virtio-63c2ed35-b014-11e828 -> ../../vde
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- 后来发现可以用ATTR方式绑定
udevadm info 查看相关属性,以后在其它设备时考虑使用
[root@nccdb01 rules.d]# udevadm info --attribute-walk /dev/vde Udevadm info starts with the device specified by the devpath and then walks up the chain of parent devices. It prints for every device found, all possible attributes in the udev rules key format. A rule to match, can be composed by the attributes of the device and the attributes from one single parent device. looking at device '/devices/pci0000:00/0000:00:0d.0/virtio8/block/vde': KERNEL=="vde" SUBSYSTEM=="block" DRIVER=="" ATTR{ro}=="0" ATTR{size}=="20971520" ATTR{stat}==" 133 0 7512 175 0 0 0 0 0 159 175" ATTR{cache_type}=="write through" ATTR{range}=="16" ATTR{discard_alignment}=="0" ATTR{ext_range}=="256" ATTR{serial}=="63c2ed35-b014-11e825" ATTR{alignment_offset}=="0" ATTR{inflight}==" 0 0" ATTR{removable}=="0" ATTR{capability}=="50" looking at parent device '/devices/pci0000:00/0000:00:0d.0/virtio8': KERNELS=="virtio8" SUBSYSTEMS=="virtio" DRIVERS=="virtio_blk" ATTRS{device}=="0x0002" ATTRS{features}=="0010101000110000000000000000110010000000000000000000000000000000" ATTRS{status}=="0x0000000f" ATTRS{vendor}=="0x1af4" looking at parent device '/devices/pci0000:00/0000:00:0d.0': KERNELS=="0000:00:0d.0" SUBSYSTEMS=="pci" DRIVERS=="virtio-pci" ATTRS{irq}=="10" ATTRS{subsystem_vendor}=="0x1af4" ATTRS{broken_parity_status}=="0" ATTRS{class}=="0x010000" ATTRS{driver_override}=="(null)" ATTRS{consistent_dma_mask_bits}=="64" ATTRS{dma_mask_bits}=="64" ATTRS{local_cpus}=="00000000,00000000,00000000,00000000,0000ffff" ATTRS{device}=="0x1001" ATTRS{enable}=="1" ATTRS{msi_bus}=="" ATTRS{local_cpulist}=="0-15" ATTRS{vendor}=="0x1af4" ATTRS{subsystem_device}=="0x0002" ATTRS{numa_node}=="-1" ATTRS{d3cold_allowed}=="0" looking at parent device '/devices/pci0000:00': KERNELS=="pci0000:00" SUBSYSTEMS=="" DRIVERS==""
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- 创建UDEV 规则文件
vim /etc/udev/rules.d/99-oracle-asmdevices.rules SUBSYSTEM=="block",ATTR{serial}=="63c2ed35-b014-11e826", SYMLINK+="asm-ocr1" ,OWNER="grid", GROUP="asmadmin", MODE="0660" SUBSYSTEM=="block",ATTR{serial}=="63c2ed35-b014-11e827", SYMLINK+="asm-ocr2" ,OWNER="grid", GROUP="asmadmin", MODE="0660" SUBSYSTEM=="block",ATTR{serial}=="63c2ed35-b014-11e828", SYMLINK+="asm-ocr3" ,OWNER="grid", GROUP="asmadmin", MODE="0660" SUBSYSTEM=="block",ATTR{serial}=="63c2ed35-b014-11e815", SYMLINK+="asm-arch1" ,OWNER="grid", GROUP="asmadmin", MODE="0660" SUBSYSTEM=="block",ATTR{serial}=="63c2ed35-b014-11e816", SYMLINK+="asm-arch2" ,OWNER="grid", GROUP="asmadmin", MODE="0660" SUBSYSTEM=="block",ATTR{serial}=="63c2ed35-b014-11e817", SYMLINK+="asm-data1" ,OWNER="grid", GROUP="asmadmin", MODE="0660" SUBSYSTEM=="block",ATTR{serial}=="63c2ed35-b014-11e818", SYMLINK+="asm-data2" ,OWNER="grid", GROUP="asmadmin", MODE="0660" SUBSYSTEM=="block",ATTR{serial}=="63c2ed35-b014-11e819", SYMLINK+="asm-data3" ,OWNER="grid", GROUP="asmadmin", MODE="0660" SUBSYSTEM=="block",ATTR{serial}=="63c2ed35-b014-11e820", SYMLINK+="asm-data4" ,OWNER="grid", GROUP="asmadmin", MODE="0660" SUBSYSTEM=="block",ATTR{serial}=="63c2ed35-b014-11e821", SYMLINK+="asm-data5" ,OWNER="grid", GROUP="asmadmin", MODE="0660" SUBSYSTEM=="block",ATTR{serial}=="63c2ed35-b014-11e822", SYMLINK+="asm-data6" ,OWNER="grid", GROUP="asmadmin", MODE="0660" SUBSYSTEM=="block",ATTR{serial}=="63c2ed35-b014-11e823", SYMLINK+="asm-data7" ,OWNER="grid", GROUP="asmadmin", MODE="0660" udevadm trigger --type=devices --action=change udevadm control --reload [root@db01 crs]# ls -l /dev/asm* lrwxrwxrwx 1 root root 3 Aug 25 14:33 /dev/asm-arch1 -> vdf lrwxrwxrwx 1 root root 3 Aug 25 14:33 /dev/asm-arch2 -> vdg lrwxrwxrwx 1 root root 3 Aug 25 14:33 /dev/asm-data1 -> vdh lrwxrwxrwx 1 root root 3 Aug 25 14:33 /dev/asm-data2 -> vdi lrwxrwxrwx 1 root root 3 Aug 25 14:33 /dev/asm-data3 -> vdj lrwxrwxrwx 1 root root 3 Aug 25 14:33 /dev/asm-data4 -> vdk lrwxrwxrwx 1 root root 3 Aug 25 14:33 /dev/asm-data5 -> vdl lrwxrwxrwx 1 root root 3 Aug 25 14:33 /dev/asm-data6 -> vdm lrwxrwxrwx 1 root root 3 Aug 25 14:33 /dev/asm-data7 -> vdn lrwxrwxrwx 1 root root 3 Aug 25 14:33 /dev/asm-ocr1 -> vdc lrwxrwxrwx 1 root root 3 Aug 25 14:33 /dev/asm-ocr2 -> vdd lrwxrwxrwx 1 root root 3 Aug 25 14:33 /dev/asm-ocr3 -> vde
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