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--- strutture:lnf:dr:calcolo:sistemi:ceph:bootstrap_per_benchmark [2023/06/21 10:25] – created rorru@infn.it
+++ strutture:lnf:dr:calcolo:sistemi:ceph:bootstrap_per_benchmark [2024/09/19 12:51] (current) – [Dry run per la generazione dello schema di deploy degli OSD] rorru@infn.it
@@ Line 1: / Line 1: @@
+====== Bootstrap del cluster per benchmark ======
+Le operazioni vanno eseguite sulla sulla macchina ''%%ceph-ctrl-00%%'' ( con ''%%ssh root@mgmt-ceph-ctrl-00%%'' ), o su un’altra macchina facente parte della controlplane.
+===== Bootstrap e configurazione iniziale del cluster =====
+<code>
+cephadm bootstrap --cluster-network 192.168.32.0/24 --mon-ip 192.168.33.10 --ssh-user cephadm --allow-fqdn-hostname
+ceph orch apply mon --unmanaged
+ceph orch apply mgr --unmanaged
+ssh-copy-id -f -i /etc/ceph/ceph.pub cephadm@ceph-data-01
+ssh-copy-id -f -i /etc/ceph/ceph.pub cephadm@ceph-data-00
+ssh-copy-id -f -i /etc/ceph/ceph.pub cephadm@ceph-data-02
+ssh-copy-id -f -i /etc/ceph/ceph.pub cephadm@ceph-ctrl-02
+ssh-copy-id -f -i /etc/ceph/ceph.pub cephadm@ceph-ctrl-01
+ssh-copy-id -f -i /etc/ceph/ceph.pub cephadm@ceph-ctrl-00
+ceph orch host add ceph-ctrl-01.lnf.infn.it 192.168.33.11 _admin mon mgr mds
+ceph orch host add ceph-ctrl-02.lnf.infn.it 192.168.33.12 _admin mon mgr mds
+ceph orch host add ceph-data-02.lnf.infn.it 192.168.33.22
+ceph orch host add ceph-data-01.lnf.infn.it 192.168.33.21
+ceph orch host add ceph-data-00.lnf.infn.it 192.168.33.20
+ceph orch host label add ceph-ctrl-00.lnf.infn.it mon
+ceph orch host label add ceph-ctrl-00.lnf.infn.it mgr
+ceph orch host label add ceph-ctrl-00.lnf.infn.it mds
+ceph orch apply mon --placement="label:mon"
+ceph orch apply mgr --placement="label:mgr"
+ceph orch apply mds benchmark --placement="2 label:mds"
+</code>
+===== Dry run per la generazione dello schema di deploy degli OSD =====
+<code>
+ceph orch apply -i osd_service.yaml --dry-run
+</code>
+Verificare dopo alcuni secondi che la configurazione generata sia quella desiderata ripetendo il comando.
+Per installare gli OSD utilizando gli SSD come db utilizzare ''%%osd_service.yaml%%'' con il seguente contenuto:
+<code>
+service_type: osd
+service_id: hdd_plus_db_on_ssd
+placement:
+  hosts:
+    - ceph-data-00.lnf.infn.it
+    - ceph-data-01.lnf.infn.it
+    - ceph-data-02.lnf.infn.it
+spec:
+  data_devices:
+    paths:
+      - /dev/sdb
+      - /dev/sdc
+      - /dev/sdd
+      - /dev/sde
+      - /dev/sdf
+      - /dev/sdg
+      - /dev/sdh
+      - /dev/sdi
+      - /dev/sdj
+      - /dev/sdk
+      - /dev/sdl
+      - /dev/sdm
+      - /dev/sdn
+      - /dev/sdo
+      - /dev/sdp
+      - /dev/sdq
+  db_devices:
+    paths:
+      - /dev/sdr
+      - /dev/sds
+      - /dev/sdt
+      - /dev/sdu
+      - /dev/sdv
+      - /dev/sdw
+      - /dev/sdx
+      - /dev/sdy
+  db_slots: 2
+</code>
+Per utilizzare gli SSD e HDD come OSD separati utilizzare invece:
+<code>
+service_type: osd
+service_id: hdd_and_ssd_apart
+placement:
+  hosts:
+    - ceph-data-00.lnf.infn.it
+    - ceph-data-01.lnf.infn.it
+    - ceph-data-02.lnf.infn.it
+spec:
+  data_devices:
+    paths:
+      - /dev/sdb
+      - /dev/sdc
+      - /dev/sdd
+      - /dev/sde
+      - /dev/sdf
+      - /dev/sdg
+      - /dev/sdh
+      - /dev/sdi
+      - /dev/sdj
+      - /dev/sdk
+      - /dev/sdl
+      - /dev/sdm
+      - /dev/sdn
+      - /dev/sdo
+      - /dev/sdp
+      - /dev/sdq
+      - /dev/sdr
+      - /dev/sds
+      - /dev/sdt
+      - /dev/sdu
+      - /dev/sdv
+      - /dev/sdw
+      - /dev/sdx
+      - /dev/sdy
+</code>
+===== Installazione OSD =====
+<code>
+ceph orch apply -i osd_service.yaml
+</code>
+===== Creazione pool e immagini per il benchmark =====
+<code>
+ceph fs volume create benchmark
+ceph fs authorize benchmark client.benchmark / rw
+ceph osd pool create rbd 128 128 replicated
+rbd pool init rbd
+ceph auth caps client.benchmark mds "allow rw fsname=benchmark" mon "allow r fsname=benchmark, profile rbd" osd "allow rw tag cephfs data=benchmark, profile rbd pool=rbd" mgr 'profile rbd pool=rbd'
+ceph osd pool set cephfs.benchmark.data pg_num 128
+ceph osd pool set cephfs.benchmark.data pgp_num 128
+ceph osd pool set cephfs.benchmark.meta pg_num 128
+ceph osd pool set cephfs.benchmark.meta pgp_num 128
+ceph osd pool set rbd pg_num 128
+ceph osd pool set rbd pgp_num 128
+</code>
+===== Informazioni da utilizzare sulla macchina client =====
+<code>
+ceph config generate-minimal-conf  # -> /etc/ceph/ceph.conf
+ceph auth get client.benchmark  # -> /etc/ceph/ceph.client.benchmark.keyring
+</code>
+===== Configurazione client =====
+**Sulla macchina client:**
+<code>
+mkdir /mnt/benchmark_rbd
+mkdir /mnt/benchmark_cephfs
+echo '/dev/rbd/rbd/benchmark /mnt/benchmark_rbd xfs     noauto          0 0' >> /etc/fstab
+echo 'benchmark@.benchmark=/ /mnt/benchmark_cephfs  ceph    defaults    0 0' >> /etc/fstab
+rbd create --id benchmark --size 550G benchmark
+rbd --id benchmark map benchmark
+dd if=/dev/urandom of=/dev/rbd0 bs=4M count=137000
+mkfs.xfs /dev/rbd0
+rbd --id benchmark unmap benchmark
+echo 'benchmark    id=benchmark' >> /etc/ceph/rbdmap
+systemctl start rbdmap.service
+</code>
+===== Configurazione pool SSD/HDD only =====
+<code>
+ceph osd crush rule create-replicated ssd-only default host ssd
+ceph osd crush rule create-replicated hdd-only default host hdd
+ceph osd pool set cephfs.benchmark.data crush_rule hdd-only # (oppure ssd-only)
+ceph osd pool set cephfs.benchmark.meta crush_rule hdd-only # (oppure ssd-only)
+ceph osd pool set rbd crush_rule hdd-only # (oppure ssd-only)
+</code>