louisk at cryptomonkeys.com
Thu Oct 30 19:29:43 PDT 2008
On Oct 30, 2008, at 2:55 PM, Lorenzo Perone wrote:
> On 22.10.2008, at 17:38, Freddie Cash wrote:
>> Personally, we use it in production for a remote backup box using
>> ZFS and
>> Rsync (64-bit FreeBSD 7-Stable from August, 2x dual-core Opteron
>> 2200s, 8
>> GB DDR2 RAM, 24x 500 GB SATA disks attached to two 3Ware 9650/9550
>> controllers as single-disks). Works beautifully, backing up 80
>> and Debian Linux servers every night, creating snapshots with each
>> Restoring files from an arbitrary day is as simple as navigating to
>> needed .zfs/snapshot/<snapname>/<path>/ and scping the file to
>> And full system restores are as simple as "boot livecd, partition/
>> disks, run rsync".
> So your system doesn't suffer panics and/or deadlocks, or you just
> cope with them as "collateral damage" (which, admitted, is less of
> a problem with a logging fs)?
> If that's the case, would you share the details about what you're
> on that machine (RELENG_7?, 7_0? HEAD?) and which patches
> /knobs You used? I have a similar setup on a host which
> backs up way fewer machines and locks up every... 3-9 weeks or so.
> That host only has about 2GB ram though.
I have a system which is sort of similar in production at work.
I have the following tunables (for ZFS) set:
[lkowolowski at release lkowolowski 76 ]$ uname -a
FreeBSD release.pgp.com 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #0: Wed
Sep 3 12:18:57 PDT 2008 root at release.pgp.com:/usr/obj/usr/src/sys/
[lkowolowski at release lkowolowski 77 ]$
This box has 2G of RAM, and 8.5T in ZFS spread across 8 RAID1 mirrors
in an EonStore Fiber array (direct attach).
It's been rock solid and stores all of our build collateral.
Louis Kowolowski louisk at cryptomonkeys.com
Making life more interesting for people since 1977
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