LV的組成如下：
HDD-->PV--->VG--->(LV0,LV1,LV2......)
簡單來說步驟如下：
1.先發現硬碟. 用fdisk -l 或check dmesg
HDD-->PV--->VG--->(LV0,LV1,LV2......)
簡單來說步驟如下：
1.先發現硬碟. 用fdisk -l 或check dmesg
- 8月 31 週四 201710:55
how to extend lvm size?
- 6月 01 週四 201717:07
yum update failed with PYCURL ERROR 7 - "Failed to connect to 2a02:2498:1:3d:5054:ff:fed3:e91a: Network is unreachable
This is because you need to connect to internet thru proxy in your network env. Try to edit /etc/yum.conf and add the following lines after [main] tag:
proxy=http://xxx.xxx.xx.xx:8080
proxy_username=username
proxy_password=password
proxy=http://xxx.xxx.xx.xx:8080
proxy_username=username
proxy_password=password
- 2月 14 週二 201719:37
failed to load ldlinux.c32
when install ubuntu 16.04 LTS, there is a msg showed like this
solution: dowload iso tool: win32diskimager to make your bootable device
Reference: https://wiki.ubuntu.com/Win32DiskImager/iso2usb
solution: dowload iso tool: win32diskimager to make your bootable device
Reference: https://wiki.ubuntu.com/Win32DiskImager/iso2usb
- 1月 20 週五 201701:19
Setup a slave dns server on CentOS7
env:
master--10.86.6.178
slave--10.86.6.213
domain--stella.com
master--10.86.6.178
slave--10.86.6.213
domain--stella.com
- 1月 20 週五 201701:09
SELinux on CentOS7 & Ubuntu 16.04
--CentOS7
1. check SELinux status: getenforce
2. disable SELinux temporarily:setenforce 0
3. disable SELinux permanent: vi /etc/sysconfig/selinux and replace "SELINUX=enforcing" to "SELINUX=disabled" then reboot.
1. check SELinux status: getenforce
2. disable SELinux temporarily:setenforce 0
3. disable SELinux permanent: vi /etc/sysconfig/selinux and replace "SELINUX=enforcing" to "SELINUX=disabled" then reboot.
- 1月 20 週五 201700:59
Firewall on CentOS7 & Ubuntu 16.04
此篇文章受密碼保護，請輸入密碼後閱讀。
- 1月 20 週五 201700:39
network config of ubuntu & CentOS
此篇文章受密碼保護，請輸入密碼後閱讀。
- 1月 19 週四 201723:03
check OS version of ubuntu or CentOS
此篇文章受密碼保護，請輸入密碼後閱讀。
- 1月 19 週四 201722:34
systemctl on CentOS7
CentOS 6.5 -->7.0
chkconfig-->systemctl
for example
service xxx (start/stop/restart) or /etc/init.d/xxx (start/stop/restart) --> systemctl xxx (start/stop/restart)
chkconfig-->systemctl
for example
service xxx (start/stop/restart) or /etc/init.d/xxx (start/stop/restart) --> systemctl xxx (start/stop/restart)
- 1月 13 週五 201717:30
force system rescan SAN lun--RHEL
之前有寫過類似的文章，不過是ubuntu的，現在來寫寫RHEL版本的
FC LUN:
$host=`ls /sys/class/fc_host`
FC LUN:
$host=`ls /sys/class/fc_host`
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