ansible examples

Posted by ronald on februari 3, 2021 in Ansible, RHEL |

Ansible fun 1 — – hosts: all become: yes vars:    selinux_policy: targeted    selinux_state: enforcing    haproxy_backend_balance_method: ‘roundrobin’    haproxy_backend_servers:      – name: node1         address: 192.168.4.201:80      – name: node2        address: 192.168.4.202:80      – name: node3        address: 192.168.4.203:80    firewall:   […]

Remove LUN from RHEL 6.5

Posted by ronald on april 29, 2015 in RHEL |

Logon as root   First remove LUN from Volume group: vgreduce /dev/mapper/mpathX   Then remove pv signature: pvremove /dev/mapper/mpathX   First remove scsi devices from the multipath device of mpathX. The following script will display what to remove: #!/bin/bash LUN=$1 if [ -L /dev/mapper/$LUN ] then multipath -l $LUN | grep -v policy | grep […]

Show all LUN’s on RHEL 6.5

Posted by ronald on april 29, 2015 in RHEL |

Logon as root   Create a script called showluns #!/bin/bash echo “pvscan…” pvscan > /tmp/pvscan.out echo “collecting mpaths” mpathlist=$(multipath -ll -v 1 | sort) echo “” for mpath in $mpathlist do multipath -l $mpath > /tmp/multipath.$mpath.out size=$(cat /tmp/multipath.$mpath.out | grep “size=” | awk ‘{print $1 }’ | sed “s/size=//g”) lunid=$(cat /tmp/multipath.$mpath.out | head -n 1 […]

RHEL6.5 Scan for new SAN LUN’s

Posted by ronald on april 29, 2015 in RHEL |

Logon as root   Depending on how many ports/adapters issue: (in my case 2 ports) echo 1 > /sys/class/fc_host/host0/issue_lip echo 1 > /sys/class/fc_host/host1/issue_lip   Remap found devices with multipath. multipath -r    

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