[PC-BSD Testing] vfs.zfs.arch_max on 9.0 AMD64 (jan.13, 2011 snapshot)
Lars R. Noldan
lars at w9zeb.org
Wed Feb 2 13:25:39 PST 2011
This afternoon I spent some time playing with the installer, and trying
to set up my system with a ZFS /
In doing this one thing I came across was it seems to fail stamping boot
on ADA0 if I don't set any swap partition. In talking with a few people
it came to my attention that ZFS will happily consume all the ram in
your system if you don't put a limitation on it.
The default vfs.zfs.arch_max via the install DVD reports as.
PCBSD# sysctl vfs.zfs.arch_max
This shouldn't cause my system to fail as it has 12 gigs of ram in it.
However that seems like a rather high default for the installation
media. Wouldn't ~4gb be a much more sane setting, as I suspect most
AMD64 users are not going to be on a machine with > 4gb of ram?
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