SUSE下绑定raw设置

末蓝、 2022-02-22 14:04 457阅读 0赞

SUSE绑定raw设置

1.查看raw设备绑定情况  
ora:/etc/sysconfig/network \# raw -qa  
Cannot open master raw device '/dev/raw/rawctl' (No such file or directory)  
报错原因应为raw未启动，执行  
/etc/init.d/raw start  
再次执行ok

2. 检查raw开机是否自动激活  
ora:/etc/sysconfig/network \# chkconfig --list | grep raw  
raw                       0:off  1:off  2:off  3:off  4:off  5:off  6:off  
ora:/etc/sysconfig/network \#

2. 设置raw开机自动激活  
ora:/etc/sysconfig/network \# chkconfig --level  235  raw on  
ora:/etc/sysconfig/network \# chkconfig --list | grep raw  
raw                       0:off  1:off  2:on   3:on   4:off  5:on   6:off  
ora:/etc/sysconfig/network \#

chkconfig命令主要用来更新（启动或停止）和查询系统服务的运行级信息。谨记chkconfig不是立即自动禁止或激活一个服务，它只是简单的改变了符号连接。  
chkconfig --list        \#列出系统所有的服务启动情况  
chkconfig --add httpd        \#增加httpd服务  
chkconfig --del httpd        \#删除httpd服务  
chkconfig --level httpd 2345 on        \#设置httpd在运行级别为2、3、4、5的情况下都是on（开启）的状态  
chkconfig --list mysqld        \#列出mysqld服务设置情况  
chkconfig --level 35 mysqld on        \#设定mysqld在等级3和5为开机运行服务，--level 35表示操作只在等级3和5执行，on表示启动，off表示关闭  
chkconfig mysqld on        \#设定mysqld在各等级为on，“各等级”包括2、3、4、5等级

\--level<等级代号> 　指定读系统服务要在哪一个执行等级中开启或关毕。  
      等级0表示：表示关机  
      等级1表示：单用户模式  
      等级2表示：无网络连接的多用户命令行模式  
      等级3表示：有网络连接的多用户命令行模式  
      等级4表示：不可用  
      等级5表示：带图形界面的多用户模式  
      等级6表示：重新启动  
      需要说明的是，level选项可以指定要查看的运行级而不一定是当前运行级。对于每个运行级，只能有一个启动脚本或者停止脚本。当切换运行级时，init不会重新启动已经

启动的服务，也不会再次去停止已经停止的服务。

3.查看现在有分区  
       
ora:~ \# fdisk -l  
Disk /dev/sda: 21.5 GB, 21474836480 bytes  
255 heads, 63 sectors/track, 2610 cylinders, total 41943040 sectors  
Units = sectors of 1 \* 512 = 512 bytes  
Sector size (logical/physical): 512 bytes / 512 bytes  
I/O size (minimum/optimal): 512 bytes / 512 bytes  
Disk identifier: 0x0001eac5  
   Device Boot      Start         End      Blocks   Id  System  
/dev/sda1         2105344     4208639     1051648   82  Linux swap / Solaris  
/dev/sda2   \*     4208640     6313983     1052672   83  Linux  
/dev/sda3         6313984    41943039    17814528   83  Linux

Disk /dev/sdb: 6442 MB, 6442450944 bytes  
255 heads, 63 sectors/track, 783 cylinders, total 12582912 sectors  
Units = sectors of 1 \* 512 = 512 bytes  
Sector size (logical/physical): 512 bytes / 512 bytes  
I/O size (minimum/optimal): 512 bytes / 512 bytes  
Disk identifier: 0x00000000  
Disk /dev/sdb doesn't contain a valid partition table

4.为设备分区，下面是分区的过程  
ora:~ \# fdisk /dev/sdb  
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel  
Building a new DOS disklabel with disk identifier 0x29a46dac.  
Changes will remain in memory only, until you decide to write them.  
After that, of course, the previous content won't be recoverable.  
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)  
Command (m for help): n  
Command action  
   e   extended  
   p   primary partition (1-4)  
p  
Partition number (1-4, default 1):  
Using default value 1  
First sector (2048-12582911, default 2048): 3048  
Last sector, +sectors or +size\{K,M,G\} (3048-12582911, default 12582911): 4048

Command (m for help): n  
Command action  
   e   extended  
   p   primary partition (1-4)  
p  
Partition number (1-4, default 2):  
Using default value 2  
First sector (2048-12582911, default 2048):  
Using default value 2048  
Last sector, +sectors or +size\{K,M,G\} (2048-3047, default 3047): 3047

Command (m for help): p

Device Boot      Start         End      Blocks   Id  System  
/dev/sdb1            3048        4048         500+  83  Linux  
/dev/sdb2            2048        3047         500   83  Linux

Partition table entries are not in disk order

Command (m for help): w  
The partition table has been altered!

5.创建pv  
ora:~ \# pvcreate /dev/sdb1  
  Physical volume "/dev/sdb1" successfully created  
ora:~ \#  
ora:~ \# pvscan  
  PV /dev/sdb1                      lvm2 \[6.00 GiB\]  
  Total: 1 \[6.00 GiB\] / in use: 0 \[0   \] / in no VG: 1 \[6.00 GiB\]  
ora:~ \#

6.创建vg  
ora:~ \# vgcreate jackwang /dev/sdb1  
  Volume group "jackwang" successfully created  
ora:~ \# vgdisplay jackwang  
  --- Volume group ---  
  VG Name               jackwang  
  System ID              
  Format                lvm2  
  Metadata Areas        1  
  Metadata Sequence No  1  
  VG Access             read/write  
  VG Status             resizable  
  MAX LV                0  
  Cur LV                0  
  Open LV               0  
  Max PV                0  
  Cur PV                1  
  Act PV                1  
  VG Size               6.00 GiB  
  PE Size               4.00 MiB  
  Total PE              1535  
  Alloc PE / Size       0 / 0    
  Free  PE / Size       1535 / 6.00 GiB  
  VG UUID               C63yUE-Mnwi-UrYn-pQ6y-qYXg-KwqT-jRygNN

7.创建lv  
ora:~ \# lvcreate -n jack1 -L 1024M jackwang  
  Logical volume "jack1" created  
ora:~ \# lvcreate -n jack2 -L 1024M jackwang  
  Logical volume "jack2" created  
ora:~ \# lvdisplay  
  --- Logical volume ---  
  LV Name                /dev/jackwang/jack1  
  VG Name                jackwang  
  LV UUID                l50s9C-22Wh-eM9T-txxp-Rvod-V0Sk-IpT9nZ  
  LV Write Access        read/write  
  LV Status              available  
  \# open                 0  
  LV Size                1.00 GiB  
  Current LE             256  
  Segments               1  
  Allocation             inherit  
  Read ahead sectors     auto  
  - currently set to     1024  
  Block device           253:0    
  --- Logical volume ---  
  LV Name                /dev/jackwang/jack2  
  VG Name                jackwang  
  LV UUID                Z5eStm-ADw7-Bbnm-95V2-poYE-Iu0u-6zIMvQ  
  LV Write Access        read/write  
  LV Status              available  
  \# open                 0  
  LV Size                1.00 GiB  
  Current LE             256  
  Segments               1  
  Allocation             inherit  
  Read ahead sectors     auto  
  - currently set to     1024  
  Block device           253:1  
ora:/dev/jackwang \# lvscan  
  ACTIVE            '/dev/jackwang/jack1' \[1.00 GiB\] inherit  
  ACTIVE            '/dev/jackwang/jack2' \[1.00 GiB\] inherit

8.绑定raw设备  
ora:/dev/raw \# raw /dev/raw/raw1 /dev/jackwang/jack1  
/dev/raw/raw1:  bound to major 253, minor 0  
ora:/dev/raw \# raw /dev/raw/raw2 /dev/jackwang/jack2  
/dev/raw/raw2:  bound to major 253, minor 1  
ora:/dev/raw \# ls  
raw1  raw2  rawctl  
ora:/dev/raw \#  
查看绑定情况  
ora:/etc \# raw -qa  
/dev/raw/raw1:  bound to major 253, minor 0  
/dev/raw/raw2:  bound to major 253, minor 1  
ora:/etc \#

9.配置raw  
在/etc/raw中添加绑定关系  
ora:/etc \# vi raw  
\# /etc/raw  
\# sample configuration to bind raw devices  
\# /etc/raw  
\# sample configuration to bind raw devices  
\# to block devices  
\# The format of this file is:  
\# raw<N>:<blockdev>  
\# example:  
\# ---------  
\# raw1:hdb1  
\# this means: bind /dev/raw/raw1 to /dev/hdb1  
raw1:jackwang/jack1  
raw2:jackwang/jack2  
~  
ora:/dev/jackwang \# chkconfig raw  
raw  on  
ora:/dev/jackwang \#

10.设置raw随着操纵系统重启自动绑定  
在/etc/init.d/rc中添加如下语句即可，重启操作系统验证绑定成功  
/sbin/lvchange -a y /dev/jackwang/jack1  
/sbin/lvchange -a y /dev/jackwang/jack2  
rcraw start

在实验过程遇到问题  
手动绑定裸设备失败原因是由于lv没有激活导致  
ora:/etc \# raw /dev/raw/raw1 /dev/jackwang/jack1  
Cannot locate block device '/dev/jackwang/jack1' (No such file or directory)  
ora:/etc \# lvchange -ay /dev/jackwang/jack1  
ora:/etc \# lvchange -ay /dev/jackwang/jack2  
ora:/etc \# lvscan  
  ACTIVE            '/dev/jackwang/jack1' \[1.00 GiB\] inherit  
  ACTIVE            '/dev/jackwang/jack2' \[1.00 GiB\] inherit  
ora:/etc \# rcraw start  
bind /dev/raw/raw1 to /dev/jackwang/jack1...                                                       done  
bind /dev/raw/raw2 to /dev/jackwang/jack2...                                                       done  
ora:/etc \# raw -qa  
/dev/raw/raw1:  bound to major 253, minor 0  
/dev/raw/raw2:  bound to major 253, minor 1  
ora:/etc \#