Date: Thu, 6 Oct 2011 10:21:57 +0100 From: krad <kraduk@gmail.com> To: Jason Usher <jusher71@yahoo.com> Cc: freebsd-questions@freebsd.org Subject: Re: Parallel fscks on large filesystems ... wondering about maxdsiz setting... Message-ID: <CALfReyfqR3d_sBLUQ%2BDBBnmt7GmJva%2BrkjfHYvqc8XfNNJtGTQ@mail.gmail.com> In-Reply-To: <1317839111.86728.YahooMailClassic@web121214.mail.ne1.yahoo.com> References: <1317839111.86728.YahooMailClassic@web121214.mail.ne1.yahoo.com>
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On 5 October 2011 19:25, Jason Usher <jusher71@yahoo.com> wrote: > Old 6.4-RELEASE system. > > Two filesystems exist, each of which is on its own raid controller. > > (Background fsck is not workable for various reasons that are tl;dr.) > > So, theoretically, doing both fscks at the same time is workable, since > each of them are on their own controller, and no disk/controller resources > are shared. > > HOWEVER, due to the large size and dense inode usage, we are forced to set: > > kern.maxdsiz="4096000000" > > And my question is: > > If I run two fscks at the same time, do I need to up this to 8192000000, > or is this a per-process limit and I can run several processes that big, > while leaving the value at 4096000000 ? > > (16 GB of ram, so either way we're well below) > > Thanks! > _______________________________________________ > 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" > If this becomes a major issue for you why not upgrade to 9 when its out then you can have softupdates with journaling and remove most cases where you need to run fsck, or make the jump to zfs. zfs will obviously require a bit more thought.
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