Subvolume level allocation policy
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Is it ( yet? ) possible to manipulate the allocation policy on a subvolume level instead of the fs level? For example, to make / use raid1, and /home use raid0? Or to have / allocated from an ssd and /home allocated from the giant 2tb hd.
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Quoted 7 lines · Phillip Susi
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Hash: SHA1Is it ( yet? ) possible to manipulate the allocation policy on a subvolume level instead of the fs level? For example, to make / use raid1, and /home use raid0? Or to have / allocated from an ssd and /home allocated from the giant 2tb hd.
Not yet, sorry. It's planned, but nobody's got around to
implementing it.
Hugo.
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=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
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--- I'm on a 30-day diet. So far I've lost 18 days. --- Quoted 4 lines · Phillip Susi
Is it ( yet? ) possible to manipulate the allocation policy on a subvolume level instead of the fs level? For example, to make / use raid1, and /home use raid0? Or to have / allocated from an ssd and /home allocated from the giant 2tb hd.
At least the latter can be achieved with speed profiles. I worked on those together with Arne Jansen who sent patches in January 2011, subject "[PATCH] Btrfs: introducing speed profiles and dedicated log devices".
I don't assume they apply nowadays without a major rework, though. We should get those patches merged sometime.
-Jan