Date: Fri, 29 May 2015 08:37:31 +0100 From: krad <kraduk@gmail.com> To: Luca Ferrari <fluca1978@infinito.it> Cc: "Chad Leigh Shire.Net LLC" <chad@shire.net>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>, Jaime Kikpole <jkikpole@cairodurham.org> Subject: Re: ZFS in a VM? Message-ID: <CALfReydP1vQjDbTRkG1KmBwcj4AGjStwAB2dJvZKWoJAE0O_bg@mail.gmail.com> In-Reply-To: <CAKoxK%2B4SZ27poRw7e7ftYA20%2B-qYRQC8WKvE_jo1NNP62LFZog@mail.gmail.com> References: <CA%2Bsg5RQgF7%2BAQu9P0Bt8USF8722QCi=qJ2XQ8RbNQ92cv9tNTg@mail.gmail.com> <9C96EB4B-A230-4A26-BDC3-067367A61E34@shire.net> <CAKoxK%2B4SZ27poRw7e7ftYA20%2B-qYRQC8WKvE_jo1NNP62LFZog@mail.gmail.com>
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in a vm i think its more a manageability thing for me. Its not about performance as if i wanted that I would be bare metal. Boot environments, being able to roll back specific areas of the system are tools not to be sniffed at. On 28 May 2015 at 17:21, Luca Ferrari <fluca1978@infinito.it> wrote: > On Wed, May 27, 2015 at 9:39 PM, Chad Leigh Shire.Net LLC > <chad@shire.net> wrote: > > I do. I do it not so much for any performance benefits, if any, ZFS > offers, but more for data integrity. You need to tune it since the VM > based disks are not the same as physical disks. I run into performance > issues when the =E2=80=9Cdisk=E2=80=9D gets to a certain usage level (in = terms of used > capacity). > > I'm not sure ZFS on a virtual disk will help a lot on a disk based > corruption, but I'm not a guru in this subject. > I personally tend to use ufs on my virtual machines, relying more on > the host file system for no data corruption. This allows me to have > smaller machines and use the ram for other stuff. > But this is my personal point of view. > > As pointed out in this thread: tuning ZFS on virtual machine is not > the same as tuning it on real disks (and this is pretty much valid for > every tuning operation in virtual machines). > > Luca > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >
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