On 11/8/23 03:20, gene heskett wrote:
On 11/8/23 00:34, to...@tuxteam.de wrote:
On Tue, Nov 07, 2023 at 07:19:40PM -0500, gene heskett wrote:
[...]
What do I do if a gpt partition table has already been made and an ext4
system is already installed? IOW just how "bare" a disk is needed? Is
writing a null gpt sufficient?
Hm. I may have missed something, but I've got the impression we are a
second round through this: you just slap the LVM infrastructure over
current data, it will overwrite what it needs to and mark the rest as
free space. It just replaces what was before on disk.
Sounds good.
However I may go a different route. I have a not installed 2T WD-Black SN770 NVMe
SSD, format 2280. This Asus prime z370-A II modo has two M2 sockets which the docs
say both can use a 2280, but they operate differently w/o really explaining the
difference. The one in the middle of the board, the A socket 2_2 looks like I have
to pull the CPU and its radiator to be able to really get to it, and actually only
shows how to install in the lower 2_1 socket which also has a heat sinking cover
that must be removed & reinstalled. Is this then the preferred location, or is
there an advantage to the other socket nearer the CPU?.
This is a different question entirely.
It /might/ warn you that you're about overwriting potentially valuable
data, I don't remember.
By my recollection, LVM operations DO NOT WARN. I might be wrong, but don't
recommend the alternative. Use with care.
But before I do yet another reinstall, 24th or so. two of the sata 2t's are
installed, and I'm tempted to rsych the raid to one of them to see if
reassigning /home to a copy of /home does away with this horrible lag I'm
wanting to blame on the raid10.
Unless, of course, the data is sensitive: in that case you want to zero
(or better: random) it.
Cheers
Thank you.
They are empty except for the ext4 install and if pvcreate just slams the new format regardless, I'll rsync the 2T /home back to the raid10, and unplug that controller before I put the install dvd in. I also have another sata controller, this one with all 16 ports installed.>
And I just looked at tht pair, and acc gparted they have both been pvcreated, so I'll leave then alone and steal the dvd cable, puttin a new 2T drive if I can rig power to it.
This mobo also claims to be able to do the intel version of a raid on its own
sata ports. Does anyone here have experience doing that?
Mixing hardware RAID with either LVM (or ZFS) has no benefit that I know of.
ZFS guidance recommends against it. I suggest picking any one method to create
your /home, carrying it through, and if you don't like the result, redo it with
another. I've used LVM for more than 25 years on HP-UX and Linux with good
results. I switched a few years back to ZFS for new installs, also with good
results. Both are reliable, expandable, and easy to manage, albeit with
learning curves. I haven't used hardware raid because the software ones are
quite good enough, and they also have their learning curve.
Regards,
Tom
Thanks Tomas
Cheers, Gene Heskett.
