http://docs.ceph.com/docs/master/rados/configuration/bluestore-config-ref/#devices
"The BlueStore journal will always be placed on the fastest device available, so using a DB device will provide the same benefit that the WAL device would while also allowing additional metadata to be stored there (if it will fit)."
So I guess if you only specify block.db (on faster device), block.wal it will go into that lvm/partition.
El dom., 2 jun. 2019 a las 18:43, M Ranga Swami Reddy (<swamireddy@xxxxxxxxx>) escribió:
Hello - I planned to use the bluestore's block.db on SSD (and data is on HDD) with 4% of HDD size. Here I have not mentioned the block.wal..in this case where block.wal place?_______________________________________________is it in HDD (ie data) or in block.db of SSD?ThanksSwami
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Félix Barbeira.
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