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Re: Raid 1

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On 2021-01-22 14:26, mick crane wrote:
> hello,
> I want to tidy things up as suggested.
> Have one old PC that I'll put 2 disks in and tidy everything up so 
> what's scattered about is on the running disks and this new/old one is 
> just backup for them.
> Can I assume that Debian installer in some expert mode will sort out the 
> raid or do I need to install to one disk and then mirror it manually 
> before invoking the raid thing ?


I would install a small SSD and do a fresh install of the OS onto that.


I would then install the two HDD's and set up a mirror (RAID 1).  Linux 
options include Multiple Device md(4), Linux Volume Manager lvm(8), and 
ZFS zfs(8).


A key issue with storage is bit rot.  btrfs and ZFS have it. 
dm-integrity (man page?) can provide it for Linux solutions without. 
btrfs requires maintenance.  I did not do it, and my disks suffered. 
ZFS does not require maintenance and has many killer features.  I have 
not tried dm-integrity, but would be interested in reading a HOWTO for 
Debian.


Due to CDDL and GPL licensing conflicts, ZFS is not fully integrated 
into Debian.  ZFS can be installed and used on Debian, but ZFS-on-root 
is not supported by the Debian installer.


The CDDL and BSD licenses are compatible.  So, ZFS is fully integrated 
on FreeBSD, and the FreeBSD installer can do ZFS-on-root.  FreeBSD has 
other features I like.  I use FreeBSD and ZFS on my servers; including 
storage (Samba).


David

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Thread

Raid 1 mick crane <mick.crane@gmail.com> - 2021-01-22 23:30 +0100
  Re: Raid 1 Linux-Fan <Ma_Sys.ma@web.de> - 2021-01-23 00:10 +0100
  Re: Raid 1 David Christensen <dpchrist@holgerdanske.com> - 2021-01-23 00:20 +0100
  Re: Raid 1 David Christensen <dpchrist@holgerdanske.com> - 2021-01-23 00:20 +0100
  Re: Raid 1 Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-23 13:30 +0100
    Re: Raid 1 Linux-Fan <Ma_Sys.ma@web.de> - 2021-01-23 18:20 +0100
      Re: Raid 1 Linux-Fan <Ma_Sys.ma@web.de> - 2021-01-23 19:00 +0100
        Re: Raid 1 Pankaj Jangid <pankaj@codeisgreat.org> - 2021-01-25 07:00 +0100
          Re: Raid 1 Andy Smith <andy@strugglers.net> - 2021-01-25 08:20 +0100
            Re: Raid 1 Linux-Fan <Ma_Sys.ma@web.de> - 2021-01-25 12:10 +0100
              Re: Raid 1 Pankaj Jangid <pankaj@codeisgreat.org> - 2021-01-25 13:50 +0100
    Re: Raid 1 David Christensen <dpchrist@holgerdanske.com> - 2021-01-23 23:10 +0100
      Re: Raid 1 Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-24 18:40 +0100
        Re: Raid 1 Linux-Fan <Ma_Sys.ma@web.de> - 2021-01-24 23:30 +0100
          Re: Raid 1 Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-25 07:40 +0100
      Re: Raid 1 Andy Smith <andy@strugglers.net> - 2021-01-24 19:00 +0100
        Re: Raid 1 Andrei POPESCU <andreimpopescu@gmail.com> - 2021-01-24 21:20 +0100
      Re: Raid 1 David Christensen <dpchrist@holgerdanske.com> - 2021-01-24 21:20 +0100
        Re: Raid 1 deloptes <deloptes@gmail.com> - 2021-01-25 09:50 +0100
        Re: Raid 1 David Christensen <dpchrist@holgerdanske.com> - 2021-01-25 19:00 +0100

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