Date: Fri, 01 May 2015 15:44:17 -0700 From: Lacey Powers <lacey.leanne@gmail.com> To: freebsd-fs@freebsd.org Subject: Re: vfs.zfs.write_to_degraded missing in 10.1? Message-ID: <554401C1.9020801@gmail.com> In-Reply-To: <CABnVG=f9A2%2BrnhaE3jckZ17V=aKFNn%2BnmFpi5OnqQUe7Nazy5g@mail.gmail.com> References: <CABnVG=f9A2%2BrnhaE3jckZ17V=aKFNn%2BnmFpi5OnqQUe7Nazy5g@mail.gmail.com>
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Hello Gabor, It looks like this was an upstream behavior that was changed. Here's the bug from Illumos: https://www.illumos.org/issues/4976 And it was pulled in in r269010in FreeBSD https://svnweb.freebsd.org/base?view=revision&revision=269010 I'm not entirely sure about what the changes mean, but it seems like it will always try for the behavior of the vfs.zfs.write_to_degraded sysctl, except in instances where the vdev is non-redundant and top-level.It might help to ask for further clarification on an Illumos or OpenZFS mailing list, or in the IRC channels on freenode for each, #illumos or #openzfs. Hope that helps. =) Regards, Lacey On 04/29/2015 14:40, Gabor Radnai wrote: > Hi, > > I run 10.1-stable (r281854), is it possible I missed the announcement of > removing vfs.zfs.write_to_degraded sysctl variable? > > The Handbook's Advanced Topics 20.6 is mentioning this variable as "to > allow writing to degraded vdevs to prevent the amount of free space across > the vdevs from becoming unbalanced, which will reduce read and write > performance." > > How can this be achieved currently? > > Thanks. > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to"freebsd-fs-unsubscribe@freebsd.org"
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