Date: Thu, 28 Feb 2002 14:32:03 -0800 (PST) From: Patrick Thomas <root@utility.clubscholarship.com> To: Nik Clayton <nik@freebsd.org> Cc: Kirk Strauser <kirk@strauser.com>, <freebsd-hackers@freebsd.org>, <freebsd-emulation@freebsd.org> Subject: Re: using vnconfig devices instead of partitions for jails ? Message-ID: <20020228143046.F29049-100000@utility.clubscholarship.com> In-Reply-To: <20020227235320.C4562@canyon.nothing-going-on.org>
next in thread | previous in thread | raw e-mail | index | archive | help
thank you - I am glad to see that this is a good way of doing things. Two quick items: 1. How do I give each jail a 'proc' filesystem in its /proc using this configuration ? 2. Is there any downside to this whatsoever ? This seems infinitely better than a new partition for each jail, so was I just silly for doing it that way ? thanks! On Wed, 27 Feb 2002, Nik Clayton wrote: > On Wed, Feb 27, 2002 at 03:03:11PM -0600, Kirk Strauser wrote: > > At 2002-02-27T20:49:18Z, Patrick Thomas <root@utility.clubscholarship.com> writes: > > > I would like to put a large number of jails (16 or 20) on a server for > > > testing purposes. > > > > > > I have two options so far: create 16 or 20 partitions OR just put them all > > > in one partition, but the downside of that is that then I cannot enforce > > > disk usage between jails. So at this point, 16-20 partitions seems the > > > safest route. > > > > Good question. Is there any ability at all within the system to set a quota > > on a jail? > > Each vn* device has to be baced by a physical file on the system. > Simply make sure that this physical device is the maximum size you want > to allow in the jail. > > For example, on a server with 160GB of (RAID) disk, and 12 jails, each 10GB > in size, I just have 12 jails; > > On the 'master' host for the jails. > > # cd /usr/local/jails/disk-images > # ls -l > totall 1758115 > drwxr-xr-x 2 root wheel 512 Jan 23 00:40 . > drwxr-xr-x 4 root wheel 512 Jan 23 00:39 .. > -rw-r--r-- 1 root wheel 136 Jan 22 18:45 README > -rw-r--r-- 1 root wheel 10737418240 Feb 27 23:35 foo.com.vn > -rw-r--r-- 1 root wheel 10737418240 Feb 27 23:35 bar.com.vn > -rw-r--r-- 1 root wheel 10737418240 Feb 27 23:35 baz.com.vn > ... > > These were created with "truncate 10G file", and are then mounted > configued on different vn* devices, which are then mounted as normal. > > # mount > ... > /dev/vn0a on /usr/local/jails/foo.com > /dev/vn1a on /usr/local/jails/bar.com > /dev/vn2a on /usr/local/jails/baz.com > ... > > N > -- > FreeBSD: The Power to Serve http://www.freebsd.org/ (__) > FreeBSD Documentation Project http://www.freebsd.org/docproj/ \\\'',) > \/ \ ^ > --- 15B8 3FFC DDB4 34B0 AA5F 94B7 93A8 0764 2C37 E375 --- .\._/_) > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-emulation" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20020228143046.F29049-100000>