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Get current Ceph parameters

Oct 27, 2016 · 1 min read · CEPH ·

1ceph -n osd.10 --show-config --cluster=adleast Something like this might be useful 1ceph -n osd.10 --show-config --cluster=adleast | grep backfillđ See here for an awesome cheatsheet

MegaCLI on CentOS 7

Oct 12, 2016 · 1 min read · MEGACLI CENTOS7 ·

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Installation 1Yum install Lib_Utils-1.00-08.noarch.rpm MegaCli-8.01.06-1.i386.rpm (i386 binary works ok on x64 servers) List all controllers 1/opt/MegaRAID/MegaCli/MegaCli64 -AdpAllInfo -aALL List all physical disks 1/opt/MegaRAID/MegaCli/MegaCli64 -PDlist -a0 | grep -e '^Enclosure Device ID:' -e '^Slot …

Ceph monitor backup script

Oct 12, 2016 · 1 min read · CEPH ·

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Don't just copy the /var/lib/ceph directory because you cant be sure of the state of the database files. Original article 1service ceph stop mon 2tar czf /var/backups/ceph-mon-backup_$(date +'%a').tar.gz /var/lib/ceph/mon 3service ceph start mon

Enable QEMU Guest Agent on Windows

Oct 5, 2016 · 1 min read · QEMU WINDOWS ·

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Install the Guest agent from the ISO https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso Edit the service startup parameters in the registry 1HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\QEMU-GA\\ImagePath = "C:\\Program Files\\qemu-ga\\qemu-ga.exe" -d -p …

Fibre Channel in Linux(CentOS7)

Aug 29, 2016 · 2 min read · LINUX CENTOS7 FIBRECHANNEL ·

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Get the WWN of the controller 1cd /sys/class/fc_host/host5/ 2 3[root@ibm2 host5]# cat node_name 40x200000051e8e53aa Rescan the FC bus. 1cd /sys/class/fc_host/host5/ 2echo "1" >; issue_lip OR 1yum install sg3_utils 2 3rescan-scsi-bus.sh List disks 1[root@hp by-path]# sscsi 2[0:0:0:0] disk ATA WDC WD4000FYYZ-0 …

Centos 7 UEFI things

Jul 26, 2016 · 1 min read · CENTOS7 UEFI ·

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How to tell if you booted from a UEFI enabled machine 1dmesg | grep "EFI v" When enabling net.ifnames=o Edit /etc/default/grub Ammend line GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/swap vconsole.font=latarcyrheb-sun16 rd.lvm.lv=centos/root crashkernel=auto vconsole.keymap=us rhgb quiet net.ifnames=0` Then run …

CryptoLock(Variant) repair script

Jun 14, 2016 · 2 min read · CRYPTOLOCK ·

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Use this script to search for files that have .encrypted appended to their name and replace them with a version from shadow copy. This powershell script will create the symlink given the ShadowCopy name you provide, it will then search the folder specified and replace all effected files removing the encrypted …

HP Blade system commands (C7000)

Jun 13, 2016 · 1 min read · HP SYSCOMMANDS ·

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Hard reset power to a blade(Undocumented?) This will reset the power to the blade instantly, effectively removing it from the chassis and re-inserting it reset server x Original article Factory Reset an iLO using Onboard administrator Where 6 = Blade bay # 1 HPONCFG 6 < < @ 2 3 <RIBCL VERSION="2.0" …

Backspace in HP\Comware switches

Jun 13, 2016 · 1 min read · HP COMWARE networking ·

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A quick and dirty script to backup Openstack config files

May 24, 2016 · 1 min read · OPENSTACK CONFIG ·

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You will of course need to run ssh-copy-id root@hostname for each machine you want to connect to prior to running this script. 1 #!/bin/bash 2 # declare an array called array and define 3 vales 3 osdirs=( "/etc/nova" "/etc/neutron" "/etc/cinder" "/etc/glance" "/etc/keystone" …