Notes, tools, and utilities... and everything on Ceph.

General:

https://tracker.ceph.com/projects/ceph/wiki/10_Commands_Every_Ceph_Administrator_Should_Know

http://smalldatum.blogspot.com/2020/01/deletes-are-fast-and-slow-in-lsm.html

https://blog.widodh.nl/2016/01/slow-requests-with-ceph-waiting-for-rw-locks/

https://swamireddy.wordpress.com/2016/06/17/ceph-diff-ceph-osd-reweight-ceph-osd-crush-reweight/

http://knowledgebase.45drives.com/kbtopic/ceph/

https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/1.2.3/html/red_hat_ceph_administration_guide/index

https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/4/html/troubleshooting_guide

https://docs.ceph.com/docs/argonaut/ops/index.html

http://lists.ceph.com/pipermail/ceph-users-ceph.com/2017-April/017378.html

http://smithfarm-thebrain.blogspot.com/search/label/ceph

WAL expansion:

https://people.canonical.com/~lathiat/00273199/wal-expansion-steps.txt

Ceph Cluster Expansion:

https://community.inkdrop.app/note/a09ea1b4d7103f2696a15ca7a5ab4268/note:nqtb2AY9t https://paste.ubuntu.com/p/GxMG2bFh7y/

Deep scrub:

https://ceph.io/geen-categorie/deep-scrub-distribution/

Common support issues/troubleshooting:

http://bos.itdks.com/0b3d8c2a58cc44b3861b8b8d6c9750b1.pdf

RADOS operations:

https://docs.ceph.com/docs/master/rados/operations/

RocksDB:

https://github.com/facebook/rocksdb/wiki

https://tracker.ceph.com/issues/36482#note-16

https://rocksdb.org/blog/2016/01/29/compaction_pri.html

bcache:

https://bcache.evilpiepirate.org/

BlueStore:

https://events.static.linuxfound.org/sites/events/files/slides/20170323%20bluestore.pdf

Benchmarking/performance/tuning:

https://tracker.ceph.com/projects/ceph/wiki/Benchmark_Ceph_Cluster_Performance

https://documentation.suse.com/ses/6/html/ses-all/tuning-ceph.html

https://yourcmc.ru/wiki/Ceph_performance

https://access.redhat.com/sites/default/files/attachments/20150325_network_performance_tuning.pdf

https://accelazh.github.io/ceph/Ceph-Performance-Tuning-Checklist

Code walkthroughs:

https://tracker.ceph.com/projects/ceph/wiki/Code_Walkthroughs

UCA - Ceph Mapping/releases:

https://github.com/openstack/charms.ceph/blob/master/charms_ceph/utils.py#L3204

https://wiki.ubuntu.com/OpenStack/CloudArchive

https://ubuntu.com/about/release-cycle

fio:

https://tobert.github.io/post/2014-04-17-fio-output-explained.html

http://tfindelkind.com/2015/08/04/fio-flexible-io-tester-part1-installation-and-compiling-if-needed/

https://arstechnica.com/gadgets/2020/02/how-fast-are-your-disks-find-out-the-open-source-way-with-fio/