Oh, forgot to mention the "this could be you" photo in that link
:)
BillK
On 7/9/23 11:24, William Kenworthy wrote:
On 7/9/23 11:09, Dale wrote:
Frank Steinmetzger wrote:
Am Wed, Sep 06, 2023 at 02:45:11PM -0500 schrieb Dale:
Oh, creating a
vdev was the trick. Once that is done, expand the pool. It's one of
those, once it is done, it seems easy. ROFL
Note that people used to shoot themselves in the foot when lazily
(or by
accident) adding a single disk to an existing pool. If that pool was
composed of RAID vdevs, then now they had a non-redundant single
disk in
that pool and it was not possible to remove a vdev from a pool! That
single-disk vdev could only be converted to a mirror to at least get
redundancy back.
The only proper solution was to destroy the pool and start from
scratch. By now there is a partial remedy, in that it is possible to
remove mirror vdevs from a pool. But no RAIDs:
https://forum.level1techs.com/t/solved-how-to-remove-vdev-from-zpool/192044/5
https://arstechnica.com/civis/threads/performance-when-removing-zfs-vdevs-with-zpool-remove.1481148/post-40491873
And you get some left-over metadata about the removed vdev.
That's good to see. I'll bookmark those links for the future. At least
this is doable. If I do mess up, I could just start over. It only
takes about 10 days to copy over again. o_O
I guess vdev is like LVMs pv, physical volume I think it is.
Haven’t we had this topic before? At least twice? Including the
comparison between
the three layers of LVM with their equivalent in ZFS land. ;-)
ZFS is more meant for static setups, not constantly changing disk
loadouts
of varying disk sizes.
We may have but being more familiar with LVM, I try to sort of make it
make sense to me. Honestly, ZFS doesn't really make sense, yet. My
understanding, it has two layers instead of three. I think. If there
was a NAS thing like TrueNAS that used LVM instead, I'd be all over it.
I likely would have never used TrueNAS at all. If I found one, I'd
switch faster than a lightning strike. Even if it is done in GUI I'd
switch. Command line would be fine by me. Honestly, once set up and a
network is working, all I need is for it to boot, let me enter the
encryption password and me able to mount the thing from my main rig. Of
course, shutdown when done as well.
Then it may be best for me to consider other options. I'm always adding,
swapping out or otherwise moving things around. That is one thing I
like about LVM. The only thing I try to avoid, shrinking a file
system. I use ext4 so it is doable as long as there is enough space but
still, I try to avoid it. I may have done that once, maybe.
At least I got it done now. Updating my backups went faster than
expected. Already done and drives are back in the safe. Since I have
three drives in the little cage and little room for air flow, I added a
fan to the drive cage. They got up to the 40's C pretty quick. Can't
have them getting hot.
Thanks to all.
Dale
:-) :-)
Hi Dale,
if you are feeling bored, google "gentoo NAS" and start reading.
Example: https://wiki.installgentoo.com/wiki/Home_server
Home brew is the only way to go!
BillK
