Re: [zfs-discuss] Recommended RAM for ZFS on various platforms

2010-07-22 Thread Rob Clark
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. ... How about

Re: [zfs-discuss] Recommended RAM for ZFS on various platforms

2010-07-18 Thread Richard Elling
On Jul 18, 2010, at 3:40 PM, Peter Jeremy wrote: On 2010-Jul-17 01:24:57 +0800, Michael Johnson mjjohnson@yahoo.com wrote: 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

[zfs-discuss] Recommended RAM for ZFS on various platforms

2010-07-16 Thread Michael Johnson
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

Re: [zfs-discuss] Recommended RAM for ZFS on various platforms

2010-07-16 Thread Garrett D'Amore
1GB isn't enough for a real system. 2GB is a bare minimum. If you're going to use dedup, plan on a *lot* more. I think 4 or 8 GB are good for a typical desktop or home NAS setup. With FreeBSD you may be able to get away with less. (Probably, in fact.) Btw, instead of RAIDZ2, I'd recommend

Re: [zfs-discuss] Recommended RAM for ZFS on various platforms

2010-07-16 Thread Andrew Gabriel
Garrett D'Amore wrote: Btw, instead of RAIDZ2, I'd recommend simply using stripe of mirrors. You'll have better performance, and good resilience against errors. And you can grow later as you need to by just adding additional drive pairs. -- Garrett Or in my case, I find my home

Re: [zfs-discuss] Recommended RAM for ZFS on various platforms

2010-07-16 Thread Michael Johnson
Garrett D'Amore wrote: On Fri, 2010-07-16 at 10:24 -0700, Michael Johnson wrote: 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;

Re: [zfs-discuss] Recommended RAM for ZFS on various platforms

2010-07-16 Thread Freddie Cash
On Fri, Jul 16, 2010 at 10:24 AM, Michael Johnson mjjohnson@yahoo.com wrote: 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,

Re: [zfs-discuss] Recommended RAM for ZFS on various platforms

2010-07-16 Thread Garrett D'Amore
On Fri, 2010-07-16 at 11:57 -0700, Michael Johnson wrote: us, why do you say I'd be able to get away with less RAM in FreeBSD (as compared to NexentaStor, I'm assuming)? I don't know tons about the OSs in question; is FreeBSD just leaner in general? Compared to Solaris, in my estimation,

Re: [zfs-discuss] Recommended RAM for ZFS on various platforms

2010-07-16 Thread Sam Fourman Jr.
On Fri, Jul 16, 2010 at 12:24 PM, Michael Johnson mjjohnson@yahoo.com wrote: 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,

Re: [zfs-discuss] Recommended RAM for ZFS on various platforms

2010-07-16 Thread Joerg Schilling
Sam Fourman Jr. sfour...@gmail.com wrote: using FreeBSD 9 w/ ZFSv15 using default settings, nothing in loader.conf or nothing in sysctl.conf and a GENERIC kernel 12GB of memory seems to be all ZFS wanted to use, I have tried machines with 32GB but zfs never wants to use more unless you play