Date: Thu, 01 Sep 2011 13:00:28 +0200 From: Niclas Zeising <niclas.zeising@gmail.com> To: "Hartmann, O." <ohartman@zedat.fu-berlin.de> Cc: Garrett Cooper <yanegomi@gmail.com>, freebsd-current <freebsd-current@freebsd.org> Subject: Re: howto: enabling journaling on softupdates Message-ID: <4E5F65CC.1090200@gmail.com> In-Reply-To: <4E5E773E.4050806@zedat.fu-berlin.de> References: <4E5E70AF.2080806@zedat.fu-berlin.de> <CAGH67wR_MJY1pq23t%2BPLbNJq08o=wSJZ493AW_YRe_n45qDQ0A@mail.gmail.com> <4E5E773E.4050806@zedat.fu-berlin.de>
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On 2011-08-31 20:02, Hartmann, O. wrote: > On 08/31/11 19:56, Garrett Cooper wrote: >> On Wed, Aug 31, 2011 at 10:34 AM, Hartmann, O. >> <ohartman@zedat.fu-berlin.de> wrote: >>> I try to find a suitable reading/howto for how to enable softupdates >>> on >>> UFS2 filesystems. >> Agreed. Added to http://wiki.freebsd.org/DocsFor9x . > Many thanks. > >>> As I could see, SU+J is enlisted to be enabled by default in >>> 9.0-RELEASE. >> Yes, it is on by default in bsdinstall (and I think in newfs? I could >> be wrong). > Great! > >>> What is the status quo of that? I've several active systems running >>> UFS2 on their system disks while data/home/mass storage is ZFS. >>> Are their any issue with SU+J? >> I haven't been tracking what's been going on, but several bugfixes >> have gone in in the last couple of months post-SUJ. There might be >> some bugs in the work, but most standard operations work out of the >> box for me at least. >> >> ... >> >>> I hit was "-J", the option for enabling softupdate via GEOM gjournal. >> Yeah, it's confusing.. >> >>> Is there any special preparation to bring up an existing filesystem >>> securely into >>> journaling? As I read the blogs and emails in the list, it should be >>> as simple >>> as booting into single user mode, enabling on all partitions in >>> question (even / ?) >> Yes. >> >>> via -j softupdate-journaling, runing a foreground fsck, reboot ... >>> that's it? >> If all goes well, that was the entire process IIRC. > > To late ... ;-) I couldn't resist the temptation, shut down the box, > reboot single user mode, > enabled "-j" (the lower letter `j' !!!), did a full fsck -y ... rebooted > ... >>> Or is there any other additional preparation like mentioned in >>> gjournal >>> (async mount)? >> ENOCLUE (because I'm not aware of that with gjournal -- the last time >> I tried setting it up things didn't work too well for me) :). >> >>> Thanks for patience and repsonding, >> Sure :)! >> -Garrett >> _____________ > > ... and here I am again with SU+J on my box ;-) > > Tomorrow, I will perform this step on all servers. I guess it's a "worth > having". > > > Oliver Can you please detail a little more the steps you took to enable SU+J and your experience with it? It sounds like a good start for a howto or an inclusion in the handbook. Thanks! -- Niclas Zeising
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