After a reboot of my Ceph test VM's a few OSD's didnt come online. When running ceph osd tree I saw: 1[root@lib-cephosd1 ~]# ceph osd tree 2ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY 3 -1 0.29984 root default 4 -2 0.09995 host lib-cephosd1 5 1 0.00999 osd.1 up 1.00000 1.00000 6 0 0.00999 osd.0 up 1.00000 …

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Brining a HyperV Gen2 VM into Openstack Convert the vhdx to raw and into ceph qemu-img convert -f vpc -O raw AC-TS01-C.VHD rbd:volumes/AC-TS01.raw Attach the old(Existing) disk and the new blank disk to a linux box Install clonezilla from apt On the new disk create a new partition(This will be an MBR partition not a …

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HP Bl460C G6 Centos7 RAID tool Works on my HP G6 servers with this in lspci 0c:00.0 RAID bus controller: Hewlett-Packard Company Smart Array G6 controllers (rev 01) wget http://mirror.nforce.com/pub/software/raidtools/hpacucli-tool/hpacucli-9.40-12.0.x86_64.rpm yum install hpacucli-9.40-12.0.x86_64.rpm hpacucli ctrl …

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Original Article - http://christiank.org/wp/2010/12/pipe-a-gzipped-mysql-dump-over-ssh/ If you want to take a SQL dump from some host, compress it and send it across SSH to another host then this is the command you are chasing mysqldump -u MYSQL_USERNAME -p YOUR_DATABASE | gzip -c | ssh USERNAME@YOUR_TO_HOST 'cat > …

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Some code To resize the root volume of an instance can be tricky, this worked for me Note some commands, particularly "cinder reset-state" returned a HTTP 403, i had to run those as admin 1[root@vm-os-ks01 ~]# source admin.rc 2[root@vm-os-ks01 ~]# cinder reset-state --state available …

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It feel like every time I run docker ps I get blah blah blah, permission denied The simple oneliner fix.. And the bonus, you dont even need to log out :) sudo usermod -G docker -a $USER && newgrp docker

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ceph-objectstore-tool --data-path /var/lib/ceph/osd/ceph-275/ --pgid 13.480 --op list | wc -l ceph-objectstore-tool --data-path /var/lib/ceph/osd/ceph-263/ --pgid 13.480 --op export --file ~/pg-13.480-ss5-osd263.old ceph-objectstore-tool --data-path /var/lib/ceph/osd/ceph-263/ --type bluestore --pgid 13.480 --op import …

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Whats using swap space for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done | sort -k 2 -n -r | less Who is eating all of my RAM? ps aux --sort=-%mem | head Where are my swap files cat /proc/swaps How to add more swap space 1. Create empty file: This file will contain virtual …

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