From owner-freebsd-stable@FreeBSD.ORG Fri Oct 31 12:45:56 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 09C391065678 for ; Fri, 31 Oct 2008 12:45:56 +0000 (UTC) (envelope-from lopez.on.the.lists@yellowspace.net) Received: from mail.yellowspace.net (mail.yellowspace.net [80.190.200.164]) by mx1.freebsd.org (Postfix) with ESMTP id A4A5A8FC08 for ; Fri, 31 Oct 2008 12:45:55 +0000 (UTC) (envelope-from lopez.on.the.lists@yellowspace.net) Received: from [192.168.178.21] ([85.181.132.237]) (AUTH: CRAM-MD5 lopez.on.the.lists@yellowspace.net, TLS: TLSv1/SSLv3, 128bits, AES128-SHA) by mail.yellowspace.net with esmtp; Fri, 31 Oct 2008 13:45:53 +0100 id 0020009B.00000000490AFE01.00016BDD Message-Id: <45AA3BD6-4892-44E6-B64E-AD93F2C11AB0@yellowspace.net> From: Lorenzo Perone To: Louis Kowolowski In-Reply-To: <1EA86BC6-349F-48DB-A77C-A4D8E00C55B5@cryptomonkeys.com> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v929.2) Date: Fri, 31 Oct 2008 13:45:52 +0100 References: <200810220838.45900.fjwcash@gmail.com> <43E87CCF-6D36-4F82-BF54-7B705CB1EFB5@yellowspace.net> <1EA86BC6-349F-48DB-A77C-A4D8E00C55B5@cryptomonkeys.com> X-Mailer: Apple Mail (2.929.2) Cc: freebsd-stable@freebsd.org Subject: Re: ZFS X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 31 Oct 2008 12:45:56 -0000 Thanx a lot for sharing :) OK guys that sort of gives some courage to dare a next experiment. I've got one host which has one AMP application and a mailserver running, which I'd like to set up with live zfs goodness (I know that customer would kiss me for having a snapshot history of the mail accounts...), and your posts give me the spark to try this one out. It's nothing high-volume, so summing up Freddies and Your post makes me hope this one won't deadlock too soon. anyway It's a DELL PE 1950 wirth enough ram and, most of all, a DRAC so I can powercycle that one remotely if it does the dance :-> Hope to have good news to report after a few weeks of zfs-entertainment... Thanx a lot and regards... Lorenzo On 31.10.2008, at 03:15, Louis Kowolowski wrote: > 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 >>> FreeBSD >>> and Debian Linux servers every night, creating snapshots with each >>> run. >>> Restoring files from an arbitrary day is as simple as navigating >>> to the >>> needed .zfs/snapshot/// and scping the file to >>> wherever. >>> And full system restores are as simple as "boot livecd, partition/ >>> format >>> 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 >> using >> 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: > zfs_load="YES" > vm.kmem_size_max="1024M" > vm.kmem_size="1024M" > vfs.zfs.arc_min="16M" > vfs.zfs.arc_max="384M" > > [lkowolowski@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@release.pgp.com:/usr/obj/usr/ > src/sys/GENERIC amd64 > [lkowolowski@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@cryptomonkeys.com > Cryptomonkeys: http://www.cryptomonkeys.com/~louisk > > Making life more interesting for people since 1977 > > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org > "