@FaheemMitha btw, I submitted ABAN to alternativeto.net alternativeto.net/software/aban ... I wonder if anyone but me has used it yet :-/
@Fabby I wish you luck on your job search. Just started on mine in earnest recently, after my employer closed :-(
@ThomasWard I sent my résumé to Canonical to work on Ubuntu, no idea what they'll say since I don't really have that much involvement directly with Ubuntu. Though of course I appreciate any positive words :-)
alternativeto.net (no idea if you're familiar with the site) lets you look for alternative apps. They're sorted based on users voting for them, so e.g., if you look up DBAN there, and scroll way to the bottom, ABAN shows up. To get it higher, it needs votes :-)
Dropbox seems to have most all its positions in CA
The various union filesystems are for stacking filesystems on top of each other. I.e., you have file set A, and you want to override some of the files in A with files in B.
RAID on backups is pretty common and reasonable. You build a RAID array, put a filesystem on it, and make copies of the data to that filesystem. (Which is different than trying to treat RAID as a backup, which it's not).
Anyway, it sounds like for SnapRAID you just want to set up your 4×8TB as just ext4; and I'd set up the 6×6TB as some form of RAID, possibly through LVM.
For LVM-RAID (which is much more flexible, but also more complicated) its also stored on the drives, with a backup in /etc/lvm which you can copy somewhere off the RAID set.
If you lose the OS somehow, any Linux machine will be able to read them. Provided its an Linux install that's less than say 10 years old. A live CD/USB works well.
You have redundancy so that if one fails, you just replace it. Except for failed ones, normally you wind up replacing them because you want larger ones, not because they're old, at least that's my experience at home.
Make sure you have adequate cooling. I'd consider fixing the case.... You can normally check the drive temperature via SMART (e.g., with smartctl). Running them very hot will reduce their lifespan.
4 is a somewhat inconvenient number of drives. I'd personally go RAID-6 on it (meaning you'd get the capacity of 2 drives and be protected from up to two failing), but I'm paranoid. RAID-5 would give you another drive of capacity, but at greater risk of failure
@Biswapriyo Probably at least the device tree ones, not sure about all of the firmware.
@MathCubes RAID-5 protects against one disk failing. The problem is then if while rebuilding another disk fails (very bad, you then have 2 failed disks), or if you find out you had an undetected bad sector on one of the remaining disk (lose whatever data was on that sector). Hence why I go with RAID-6, to protect against those, as long as I promptly replace the first failed disk.
Right, just beware that if you have to restore 14TB from backup... that's going to take a while. Over a day if you manage 150MB/sec, which you could only do if both copies are in the same NAS, or you have something faster than gigabit connecting them.
@FaheemMitha Yeah, I haven't really figured that one out. I think what I did at Metrics sort of gets called devops nowadays...
@MathCubes BTW, you should read up on these things before using them. And, also, mdadm --create is used only for creating new, empty RAID arrays. It can, in the hands of an expert, be used as a last-ditch recovery attempt... but it's almost always the wrong answer. (For some reason people show up here having made the situation worse with it, and only then ask experts here for help. Don't do that!)
mdraid + filesystem on top is the most simple (so least reading). LVM-RAID adds nice features (like different parts using different RAID levels, easier to expand, disks of different sizes, etc.) but is a lot more reading.
So it sounds like you should just stick with the first one.
BTW: LVM does a lot of stuff. That video will probably only cover the traditional stuff, which is combining drives and splitting them (like partitions). You can run that on top of mdraid too, which will likely be mentioned. LVM-RAID is much newer, not sure if there are good videos. You can read the manpage though at e.g., manpages.debian.org/unstable/lvm2/lvmraid.7.en.html
@derobert I don't know about you, and I know this is a bit off topic, is that with alot of cases they don't even include enough space in the back of the case. I have broken off sata connections on hdds before trying to get the panel on the case.
The good news is you can just ignore the parts of LVM you don't use. (Because I don't want to think about how long a video that explained all of LVM would be. Many hours.)
I've had some PC cases do evil things like if you want to take out a hard drive, first unmount the CPU fan (or rather, bend the bloody case so you don't have to). But drives are at the front... I've never had an issue with the back of the case not fitting on. Right-angle connectors hardly add any depth to the drive. I can only suggest buy better cases :-(
Talking about syntax highlighting... I've just noticed that the nvi from ports on OpenBSD hase support for UTF-8, while the base system's vi doesn't. This means I'm nowadays using nvi rather than vim. export EDITOR=ed VISUAL=nvi
@derobert I read "perl in a nutshell" a while back and was messing with perl during that but I stopped using it and now feel like I don't know it at all
@jesse_b That's sort of what happened with me and Python. And somewhat, Ruby (though I did actually use Ruby for a while, but have mostly forgotten since its been a bit)
@jesse_b LOL, yeah. That would have been a great title.
Yeah, most people actually recommend 1 gram of protein per pound of body weight if you are weightlifting which seems almost unobtainable for me. I have a hard time forcing myself to eat that much
@jesse_b ./prime "I'm sure if you check Leviticus, Numbers, and Deuteronomy, you'll find plenty of reasons you're damned" .... is that a damn argument (though, admittedly a lazy and not very good one)?
arguments.c:25:68: warning: format specifies type 'char *' but the argument has type 'int' [-Wformat]
fprintf(stderr, "You coming at me sideways?\nWtf is \`%s'?\n", optopt);
~~ ^~~~~~
%d
In our area, we have Cox Communications (cable) which offers 1 Gbps down, and 30 Mbps up, while Century Link (fiber) offers 1 Gpbs up AND down.
Why does copper only 'allow' fast speeds for download, but not upload? Is this a limitation companies put in place on purpose?