I'm currently planning on running FreeBSD with ZFS, but I wanted to
double-check
how much memory I'd need for it to be stable. The ZFS wiki currently says you
can go as low as 1 GB, but recommends 2 GB; however, elsewhere I've seen
someone
claim that you need at least 4 GB. Does anyone here know how much RAM FreeBSD
would need in this case?
Likewise, how much RAM does OpenSolaris need for stability when running ZFS?
How about other OpenSolaris-based OSs, like NexentaStor? (My searching found
that OpenSolaris recommended at least 1 GB, while NexentaStor said 2 GB was
okay, 4 GB was better. I'd be interested in hearing your input, though.)
If it matters, I'm currently planning on RAID-Z2 with 4x500GB consumer-grade
SATA drives. (I know that's not a very efficient configuration, but I'd really
like the redundancy of RAID-Z2 and I just don't need more than 1 TB of
available
storage right now, or for the next several years.) This is on an AMD64 system,
and the OS in question will be running inside of VirtualBox, with raw access to
the drives.
Thanks,
Michael
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