Re: BTRFS and ZFS training
> Sounds great to me. Also we should be announcing the next main meeting about now... That's right. I was reminded October is the release of Ubuntu 20.10. I was thinking of having that as the main topic. I'll start a thread to discuss that. > Basics of Linux command-line operation as root. It's expected that they don't > have any prior experience of BTRFS or ZFS, but if they have then they can > learn some more advanced stuff. Great, that's clear. I'll go ahead putting up the event, etc. + Alexar On Sat, Sep 26, 2020 at 6:15 PM Russell Coker wrote: > On Saturday, 26 September 2020 6:13:07 PM AEST Alexar Pendashteh wrote: > > How about Saturday, October 17th? The 3rd Saturday of October as per > > tradition. Given it's a rather niche topic, a longer notice could also > help > > with the publicity. > > Sounds great to me. Also we should be announcing the next main meeting > about > now... > > > I am also wondering who would be the ideal audience for the workshop? > > Is it preferred that the attendees already know the basics of these file > > systems or complete noobies can also benefit? > > Basics of Linux command-line operation as root. It's expected that they > don't > have any prior experience of BTRFS or ZFS, but if they have then they can > learn some more advanced stuff. > > -- > My Main Blog http://etbe.coker.com.au/ > My Documents Bloghttp://doc.coker.com.au/ > > > > -- [image: image.jpg] *Alexar Pendashteh* technologist / social entrepreneur https://github.com/pendashteh ___ luv-main mailing list luv-main@luv.asn.au https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main
Re: BTRFS and ZFS training
On Saturday, 26 September 2020 6:13:07 PM AEST Alexar Pendashteh wrote: > How about Saturday, October 17th? The 3rd Saturday of October as per > tradition. Given it's a rather niche topic, a longer notice could also help > with the publicity. Sounds great to me. Also we should be announcing the next main meeting about now... > I am also wondering who would be the ideal audience for the workshop? > Is it preferred that the attendees already know the basics of these file > systems or complete noobies can also benefit? Basics of Linux command-line operation as root. It's expected that they don't have any prior experience of BTRFS or ZFS, but if they have then they can learn some more advanced stuff. -- My Main Blog http://etbe.coker.com.au/ My Documents Bloghttp://doc.coker.com.au/ ___ luv-main mailing list luv-main@luv.asn.au https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main
Re: BTRFS and ZFS training
Thanks Russell. How about Saturday, October 17th? The 3rd Saturday of October as per tradition. Given it's a rather niche topic, a longer notice could also help with the publicity. I am also wondering who would be the ideal audience for the workshop? Is it preferred that the attendees already know the basics of these file systems or complete noobies can also benefit? + Alexar On Fri, Sep 25, 2020 at 10:13 PM Russell Coker via luv-main < luv-main@luv.asn.au> wrote: > I think I'm too late to arrange anything for this weekend. Should we have > it > on Thursday next week or should we have it on a Saturday next month like > the > previous schedule for Saturday meetings? > > -- > My Main Blog http://etbe.coker.com.au/ > My Documents Bloghttp://doc.coker.com.au/ > > > > ___ > luv-main mailing list > luv-main@luv.asn.au > https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main > -- [image: image.jpg] *Alexar Pendashteh* technologist / social entrepreneur https://github.com/pendashteh ___ luv-main mailing list luv-main@luv.asn.au https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main
BTRFS and ZFS training
I think I'm too late to arrange anything for this weekend. Should we have it on Thursday next week or should we have it on a Saturday next month like the previous schedule for Saturday meetings? -- My Main Blog http://etbe.coker.com.au/ My Documents Bloghttp://doc.coker.com.au/ ___ luv-main mailing list luv-main@luv.asn.au https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main
Re: BTRFS and ZFS training
On Fri, Jan 24, 2020 at 11:36:45PM +1100, Russell Coker wrote: > https://doc.coker.com.au/training/btrfs-training-exercises/ > https://doc.coker.com.au/training/zfs-training-exercises/ > > I've put some simple BTRFS and ZFS training exercises at the above URLs > (this is the training that was done at a LUV Saturday meeting in 2015). As > they involve deliberately corrupting data to exercise the filesystems it's a > good idea to to this on a VM so a typo won't cause problems. Nice. If you ever do an update of these, I'd suggest adding snapshot & send/receive exercises because doing backups with snapshots is one of the best features of both btrfs and zfs - better than rsync in a tiny fraction of the time (minutes vs hours). This would require two pools so add, e.g., /dev/vd[fgh] virtual drives to the VM. Or run two VMs to show remote send/receive via ssh. 100 or 200 MB each is enough for each pool drive. BTW, I noticed two minor problems with the zfs instructions: First is that you tell the reader to add the buster-updates contrib repo to sources.list, then tell them to install spl-dkms and zfs-dkms from buster-backports. This should probably add the buster-backports repo instead: deb http://mirror.internode.on.net/pub/debian/ buster-backports contrib main The second is that spl-dkms is no longer needed with zfs 0.8 and above, it's a dummy package. buster-backports contains zfs 0.8.2 Getting rid of spl-dkms doesn't make it any faster to install & compile the zfs module - most of what was in spl-dkms has been folded into zfs-dkms. (on my threadripper 1950x box, it takes about a minute or a minute and a half to compile the zfs module. on my older Phenom II and FX-8xx0 boxes, it takes around 5 minutes) BTW, zfs 0.8.3 just arrived in unstable/sid. the NEWS.Debian.gz file says: zfs-linux (0.8.3-1) unstable; urgency=medium The SIMD acceleration has been fixed in this upstream release. Users could use the following two commands to double check: $ cat /sys/module/zfs/parameters/zfs_vdev_raidz_impl $ cat /sys/module/zcommon/parameters/zfs_fletcher_4_impl Another notable change is the parallelization of the KABI checks during the configure stage, which may significantly boost the postinst stage of zfs-dkms that builds the kernel module. -- Mo Zhou Sat, 25 Jan 2020 13:26:02 +0800 I just upgraded my ztest VM to this today. Compiled and rebooted without problem. Will upgrade my actual machines over the next few days or so. craig -- craig sanders ___ luv-main mailing list luv-main@luv.asn.au https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main
BTRFS and ZFS training
https://doc.coker.com.au/training/btrfs-training-exercises/ https://doc.coker.com.au/training/zfs-training-exercises/ I've put some simple BTRFS and ZFS training exercises at the above URLs (this is the training that was done at a LUV Saturday meeting in 2015). As they involve deliberately corrupting data to exercise the filesystems it's a good idea to to this on a VM so a typo won't cause problems. I can give access to a VM for doing this if anyone needs it. But the system in question doesn't have a lot of RAM so anyone who gets a VM will need to complete the training reasonably quickly. If you have any suggestions for additions to the training please be specific about what commands to run. -- My Main Blog http://etbe.coker.com.au/ My Documents Bloghttp://doc.coker.com.au/ ___ luv-main mailing list luv-main@luv.asn.au https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main
