Ceph: Difference between revisions
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=Get du from block devices in pool named *rbd*= | =Get du from block devices in pool named *rbd*= | ||
POOL=$(ceph osd pool ls | grep rbd) ; for i in $(rbd -p $POOL ls | xargs) ; do echo $POOL $i ; rbd -p $POOL du $i 2>/dev/null ; done | POOL=$(ceph osd pool ls | grep rbd) ; for i in $(rbd -p $POOL ls | xargs) ; do echo $POOL $i ; rbd -p $POOL du $i 2>/dev/null ; done | ||
=access ceph in odf= | |||
oc rsh -n openshift-storage $(oc get pods -n openshift-storage -o name -l app=rook-ceph-operator) | |||
export CEPH_ARGS='-c /var/lib/rook/openshift-storage/openshift-storage.config' | |||
ceph -s | |||
ceph osd pool ls | |||
ceph osd pool autoscale-status | |||
ceph config dump | |||
# disable autoscaling | |||
ceph osd pool ls | while read i ; do echo '*' $i ; ceph osd pool set $i pg_autoscale_mode off ; done | |||
# Look to see how much data is being used for pg:s. | |||
# Number of PGLog Entries, size of PGLog data in megabytes, and Average size of each PGLog item | |||
for i in 0 1 2 ; do echo '*' $i ; osdid=$i ; ceph tell osd.$osdid dump_mempools | jq -r '.mempool.by_pool.osd_pglog | [ .items, .bytes /1024/1024, .bytes / .items ] | @csv' ;done | |||
ceph df | |||
Revision as of 15:37, 30 April 2023
what does it mean?
osd object storage daemon rados Reliable Autonomic Distributed Object Store rbd Rados Block Device
ceph
Status of ceph
ceph -s
Disk usage
ceph df
Get du from block devices in pool named *rbd*
POOL=$(ceph osd pool ls | grep rbd) ; for i in $(rbd -p $POOL ls | xargs) ; do echo $POOL $i ; rbd -p $POOL du $i 2>/dev/null ; done
access ceph in odf
oc rsh -n openshift-storage $(oc get pods -n openshift-storage -o name -l app=rook-ceph-operator) export CEPH_ARGS='-c /var/lib/rook/openshift-storage/openshift-storage.config'
ceph -s ceph osd pool ls ceph osd pool autoscale-status ceph config dump # disable autoscaling ceph osd pool ls | while read i ; do echo '*' $i ; ceph osd pool set $i pg_autoscale_mode off ; done # Look to see how much data is being used for pg:s. # Number of PGLog Entries, size of PGLog data in megabytes, and Average size of each PGLog item for i in 0 1 2 ; do echo '*' $i ; osdid=$i ; ceph tell osd.$osdid dump_mempools | jq -r '.mempool.by_pool.osd_pglog | [ .items, .bytes /1024/1024, .bytes / .items ] | @csv' ;done ceph df