[root@node2 ~]# fdisk /dev/sda
The number of cylinders for this disk is set to 2610.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
(e.g., DOS FDISK, OS/2 FDISK)
Command (m for help): p
Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 1288 10241437+ 83 Linux
/dev/sda3 1289 1386 787185 82 Linux swap / Solaris
Command (m for help): n
Command action
e extended
p primary partition (1-4)
e
Selected partition 4
First cylinder (1387-2610, default 1387):
Using default value 1387
Last cylinder or +size or +sizeM or +sizeK (1387-2610, default 2610):
Using default value 2610
Command (m for help): p
Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 1288 10241437+ 83 Linux
/dev/sda3 1289 1386 787185 82 Linux swap / Solaris
/dev/sda4 1387 2610 9831780 5 Extended
Command (m for help): n
First cylinder (1387-2610, default 1387):
Using default value 1387
Last cylinder or +size or +sizeM or +sizeK (1387-2610, default 2610): +2g
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: 设备或资源忙.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks.
[root@node2 ~]# partprobe /dev/sda
[root@node2 ~]# cat /proc/partitions
major minor #blocks name
8 0 20971520 sda
8 1 104391 sda1
8 2 10241437 sda2
8 3 787185 sda3
8 4 0 sda4
8 5 1959898 sda5
在节点1上做同样配置
安装drbd，用来构建分布式存储。
这里要选用适合自己系统的版本进行安装，我用到的是
drbd83-8.3.8-1.el5.CentOS.i386.rpm
kmod-drbd83-8.3.8-1.el5.centos.i686.rpm
[root@node1 ~]# yum localinstall -y drbd83-8.3.8-1.el5.centos.i386.rpm --nogpgcheck
[root@node1 ~]# yum localinstall -y kmod-drbd83-8.3.8-1.el5.centos.i686.rpm --nogpgcheck
在节点2上做同样操作
[root@node1 ~]# cp /usr/share/doc/drbd83-8.3.8/drbd.conf /etc/
cp: overwrite `/etc/drbd.conf'? Y # 这里要选择覆盖
[root@node1 ~]# scp /etc/drbd.conf node2:/etc/
[root@node1 ~]# vim /etc/drbd.d/global_common.conf
1 global {
2 usage-count no;
3 # minor-count dialog-refresh disable-ip-verification
4 }
5
6 common {
7 protocol C;
8
9 startup {
10 wfc-timeout 120;
11 degr-wfc-timeout 120;
12 }
13 disk {
14 on-io-error detach;
15 fencing resource-only;
16
17 }
18 net {
19 cram-hmac-alg "sha1";
20 shared-secret "mydrbdlab";
21 } 22 syncer {
23 rate 100M;
24 }
25 }