On 04/17/2015 12:41 PM, Gene Heskett wrote:> On Friday 17 April 2015
15:09:33 Petter Adsen wrote:
>> Just a suggestion: have you considered running LVM ...
> I might look into it. My last foray into that territory was with a
> fedora install, single digit version and it was a lost it all
> disaster. And I never did learn what actually failed. But I am now a
> bit wary of LVM's in general.
I also ran LVM for a while. For my SOHO network, I didn't have much
need or benefit from using LVM and multiple logical volumes in place of
multiple partitions on my system drives. I found that the old-fashioned
small boot partition, swap partition, and single root partition worked
fine and was the easiest to maintain. When I had three 250~300 GB HDD's
and wanted a JBOD, LVM worked great. A striped volume was even more
impressive. Then one of 250 GB drives started acting up and ~500 GB
wasn't enough for my needs, so bought a 3 TB drive and forgot about LVM.
The one annoyance I had with LVM was that it adds another layer of
complexity when using an install disc in rescue mode, live CD, etc., or
when putting the drive into another computer. But with enough practice,
I used to know the commands by memory.
Then I heard about ZFS. So, I tried zfs-fuse (Debian package) and then
ZFS on Linux (http://zfsonlinux.org/). ZOL was faster and offered more
features (notably de-duplication). The only way to get data on ZFS is
with a working system with the right packages. I walked away because:
1. By design, ZFS has a very different mindset from traditional
partitions, volume management, and file systems. Just running it
required a fair amount of learning. Backing up and restoring ZFS was
even harder.
2. Oracle shut the door on FOSS ZFS. Solaris ZFS has moved forward,
but OpenZFS hasn't kept up.
3. ZFS should really be run on a machine with ECC memory, which I don't
have.
4. ZOL is developed and supported by a U.S. government weapons research
lab, so I was worried about (more?) back doors.
I evaluated ZFS on FreeBSD 10.1 in January, but ran into unresolved
installer/ boot problems with encrypted mirrored ZFS root on USB drives.
Perhaps I was overly ambitious, and should try encrypted mirrored ZFS
root on traditional HDD's or SSD's.
David
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