BitFolk Users May 2011

users@mailman.bitfolk.com

7 participants
14 discussions

Re: [bitfolk] Disk full in 'df' but half-full in 'du'

by Hugo Mills

On Sun, May 22, 2011 at 09:31:49AM +0000, ed wrote: > On Sun, May 22, 2011 at 10:25:54AM +0100, Hugo Mills wrote: > > Gaah. Ignore me. It was late, and I've been spending a lot of time > > on the btrfs mailing list recently. This looks just like the sort of > > problem people get on there... > > How do you rate btrfs compared with zfs, if you've got experience with > the two that is... I've not used ZFS, so I can't compare the two directly. However, btrfs is currently less mature: we recommend having good backups regardless of your filesystem, but we suggest that you be prepared to use them if you're running btrfs. That said, the latest version is pretty stable in normal use. It supports RAID-0, -1 and -10 independently for each of data and metadata, has independently-moutable subvolumes and copy-on-write snapshots, and supports online resize and disk insertion and removal. It's fully checksummed, so if it encounters corrupt data it can tell you, *and* attempt to go and read from the other copy in your RAID-1 (or -10) array -- MD RAID-1 won't do this for you, because it doesn't have the checksums, so it can't tell which copy is good. There's a mode for supporting SSDs. What's not there yet, but planned: a working fsck(*), deduplication, a cross-filesystem replication tool like ZFS's send/receive, RAID-5/6 (in .41, probably), hierarchical storage, per-subvolume RAID options, changing RAID levels, encryption. Hugo. (*) Rumour has it that we'll get the first cut of this at the end of the month. But we've all heard that one before. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- Is a diversity twice as good as a university? ---

13 years, 7 months

Default view for Cacti has changed to "Preview"

by Andy Smith

Hi, It came to my attention yesterday that some customers were finding our install of Cacti [1] confusing. The main problem appeared to be that the default view upon logging in was the "Tree View", and it wasn't obvious how to get from there to the individual graphs that you're permitted to view. Experienced Cacti users will know that the three buttons in the top right corner switch between the three different graph views: "Tree", "List" and "Preview". The "Tree View" is what you were all seeing to begin with. "List View" is just a textual list of links to all graphs that you're permitted to view. "Preview View" is similar, but provides graph thumbnails to click on. Of these, it was suggested that "Preview View" was the most obvious, so I have now set everyone's default view to be this. It should take effect from your next login to Cacti. I didn't spot anyone who had deliberately set their default view to "Tree" or "List", but if you did, or if you just happen to prefer the other views, you can set them as your personal default from the "settings" tab. If you have any problems, do let me know. Cheers, Andy [1] https://tools.bitfolk.com/cacti/ -- <zts> well it turns out that there was a miscommunication: one team thought we were meant to be hanging ourselves; the other, that immolation was the way forward. And so we kinda accidentally burnt our rope. _______________________________________________ announce mailing list announce(a)lists.bitfolk.com https://lists.bitfolk.com/mailman/listinfo/announce

13 years, 7 months

component memory/ram/swap usage

by philip taylor

Hi I was just wondering, as sometimes i find free ram swings from very little, to quite alot. Is there a way, to work out what is using ram, and how much. to see what is sucking ram? Thank you PMT

13 years, 7 months

Debian wheezy (testing) and Ubuntu Natty Narwhal (11.04) now available for self-install

by Andy Smith

Hi, We've now tested and made available: - Debian wheezy (testing) - Ubuntu Natty Narwhal (11.04) for self-install: https://tools.bitfolk.com/wiki/Using_the_self-serve_net_installer If trying out Debian wheezy please do bear in mind that as the current testing distribution it is still under development and may thus be broken and/or uninstallable at any particular time. Whilst we will most likely be unable to help, we'd still like to hear of any problems you have using or installing wheezy. Those considering an upgrade from Ubuntu Lucid Lynx (10.04.x LTS) to Maverick Meerkat (10.10) or Natty Narwhal (11.04) should remember that vendor security support for these latter two releases ends in April/October 2012 respectively. If you don't intend to upgrade your OS before then, you may wish to remain on the LTS release which is supported until April 2015. Cheers, Andy -- http://bitfolk.com/ -- No-nonsense VPS hosting _______________________________________________ announce mailing list announce(a)lists.bitfolk.com https://lists.bitfolk.com/mailman/listinfo/announce

13 years, 7 months

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BitFolk Users May 2011