On Fri, Dec 21, 2018 at 10:18:40PM -0800, Raymond Jennings wrote: > How do I specify the size of a block group at mkfs? You don't -- there's no explicit control over it. The FS will decide based on the overall size of the filesystem in question. Typically, data groups are made of 1 GiB chunks, and metadata groups are made of 256 MiB chunks (where the RAID level will determine the number of chunks in a group and the amount of usable space of the group). Hugo. > > Like, for example, saying that data groups will be 1GiB, but metadata > groups will be 1MiB? > > I noticed that they had different default sizes based on the profile > (dup vs single vs raid) -- Hugo Mills | Beware geeks bearing GIFs hugo@... carfax.org.uk | http://carfax.org.uk/ | PGP: E2AB1DE4 |
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