From mjpomery at ucc.asn.au Mon Oct 13 15:28:11 2014 From: mjpomery at ucc.asn.au (Mitchell Pomery) Date: Mon, 13 Oct 2014 15:28:11 +0800 (WST) Subject: [tech] Renewed *.ucc.asn.au In-Reply-To: <20140909131431.GM8675@ucc.gu.uwa.edu.au> References: <20140909131431.GM8675@ucc.gu.uwa.edu.au> Message-ID: Mussel's Apache config wasn't updated properly so it started spitting out invalid ssl certificate because the old one was out of date. I've since updated it so it's all fine. Also, Wheel wasn't in Sudoers on mussel. So that's been fixed too. Mitch On Tue, 9 Sep 2014, Matt Johnston wrote: > I've renewed *.ucc.asn.au, Globalsign kindly give out free > certificates for open source projects, Dropbear SSH is > hosted at UCC. > > The new certificate is sha256 so won't work with Windows XP > SP2. I've updated mooneye's postfix, mussel's apache, > motsugo's dovecot. I think that's all? > > Matt > _______________________________________________ > List Archives: http://lists.ucc.gu.uwa.edu.au/pipermail/tech > > Unsubscribe here: http://lists.ucc.gu.uwa.edu.au/mailman/options/tech/bobgeorge33%40ucc.asn.au > From zanchey at ucc.gu.uwa.edu.au Thu Oct 23 22:12:29 2014 From: zanchey at ucc.gu.uwa.edu.au (David Adam) Date: Thu, 23 Oct 2014 22:12:29 +0800 (WST) Subject: [tech] Molmol the slightly more fileserver In-Reply-To: References: <53D54303.4050005@ucc.asn.au> <53D514B5.9040207@ucc.asn.au> Message-ID: On Fri, 15 Aug 2014, David Adam wrote: > It would be worth seeing whether this happens under FreeBSD as well, but I > don't think it does. That would definitely need to be sorted out before we > used Debian+ZFS on Molmol. So, neither the terrible NFS performance nor the weird namespacing thing got fixed, and Bob wanted to start migrating data, so we have gone with FreeBSD thanks to the two sweetest words in the English language. I put some more details in the wiki: http://wiki.ucc.asn.au/Molmol I've set up a GEOM mirror (RAID1) for the root filesystem. The reason for not using ZFS as a root filesystem is that there are reports of race conditions if you have multiple pools (e.g. root and space) sharing the same devices, which sounds reasonably nasty. David Adam UCC Wheel Member zanchey@ From bob at ucc.gu.uwa.edu.au Mon Oct 27 23:45:08 2014 From: bob at ucc.gu.uwa.edu.au (Andrew Adamson) Date: Mon, 27 Oct 2014 23:45:08 +0800 (AWST) Subject: [tech] Molmol the slightly more fileserver In-Reply-To: References: <53D54303.4050005@ucc.asn.au> <53D514B5.9040207@ucc.asn.au> Message-ID: And the file server migration is now largely complete. All files from the Netapp and SAN have been moved to /space on molmol and both the Netapp and SAN have been switched off. Storage is much simpler now: Molmol: /away /vmstore /mp3s /services Motsugo /home The majority of the move (all but /vmstore) only took about an hour to do due to pre-syncing a few days before, and only copying the differences on the day. rsync -havHAX is both effective and memorable for migrating data without screwing with it. The move took a little longer than I had expected though; even though I had pre-synced most of the data a few days before, I mistakenly thought I couldn't pre-sync any of /vmstore because small changes to an image would make the whole image have to re-sync anyway. Next time I would try the --inplace option to only transfer the blocks that have changed. The VM files also had a lot of zero space that was taking a long time to copy. Adding -S to the options makes rsync deal with sparse files better and saved a bit of time once we found the option. Things left to do are: -work out what is causing the mega-slowdown with l2arc -make molmol the primary domain controller for samba and turn off Mylah -check the rsize and wsize nfs mount options that we've had for the last 10 years are really still appropriate -fully decommission and de-rack the SAN -decide what to do with the netapp Also thanks to [NTU] and [DAA] for their help with the migration, and everyone else who worked on the build over the 2 YEARS that we did it! Andrew Adamson bob at ucc.asn.au |"If you can't beat them, join them, and then beat them." | | ---Peter's Laws | On Thu, 23 Oct 2014, David Adam wrote: > On Fri, 15 Aug 2014, David Adam wrote: > > It would be worth seeing whether this happens under FreeBSD as well, but I > > don't think it does. That would definitely need to be sorted out before we > > used Debian+ZFS on Molmol. > > So, neither the terrible NFS performance nor the weird namespacing thing > got fixed, and Bob wanted to start migrating data, so we have gone with > FreeBSD thanks to the two sweetest words in the English language. > > I put some more details in the wiki: http://wiki.ucc.asn.au/Molmol > > I've set up a GEOM mirror (RAID1) for the root filesystem. The reason for > not using ZFS as a root filesystem is that there are reports of race > conditions if you have multiple pools (e.g. root and space) sharing the > same devices, which sounds reasonably nasty. > > David Adam > UCC Wheel Member > zanchey@ > _______________________________________________ > List Archives: http://lists.ucc.gu.uwa.edu.au/pipermail/tech > > Unsubscribe here: http://lists.ucc.gu.uwa.edu.au/mailman/options/tech/bob%40ucc.gu.uwa.edu.au >