> This journal problem is a bit of wizardry to me, I even had weird intermittent issues with OSDs not starting because the journal was not found, so please do not hesitate to suggest a better journal setup.
You mentioned using SAS for journal, if your OSDs are SATA and a expander is in the data path it might be slow from MUX/STP/etc overhead. If the setup is all SAS you might try collocating the journal with it's matching data partition on a single disk. Two spindles must be contended with 9 OSDs. How are your drives attached?
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