• RAID 6 Using mdadm

    From Jeff Gaines@jgnewsid@outlook.com to alt.os.linux on Sun Aug 2 21:37:10 2026
    From Newsgroup: alt.os.linux


    I am planning to set up a spare Asus Z170 motherboard as a homebuilt NAS,
    my QNAP TS451+ is driving me round the bend as it is so slow to administer from the browser front end, I would much prefer direct access.

    I have the option of Z170-K or Z170-P Asus board and am thinking of:

    Linux Mint xfce as the OS, I use it on my home media server and can find
    my way round although the front end seems to change nearly as much as
    Windows. Installation drive will be an NVMe.

    4 x 4 TB spinning drives (Iron Wolf) in RAID 6 using mdadm to give me
    about 7.5 TB usable and the ability to survive 2 x drive failures.

    I have seen some suggestions on Google that using zfs on the RAID drives
    may be an issue in the event of failure as it is proprietary and it's
    better to use EXT4.

    Any thoughts?

    This is a major project for me as a lifelong Windows user but my Linux
    Mint home media server works so well I'd like to give it a try.
    --
    Jeff Gaines Dorset UK
    Have you ever noticed that all the instruments searching for intelligent
    life are pointing away from Earth?
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  • From =?UTF-8?B?8J+HtfCfh7FKYWNlayBNYXJjaW4gSmF3b3Jza2nwn4e18J+HsQ==?=@jmj@energokod.gda.pl to alt.os.linux on Mon Aug 3 00:20:12 2026
    From Newsgroup: alt.os.linux

    W dniu 2.08.2026 o-a23:37, Jeff Gaines pisze:
    Any thoughts?

    Years ago, when I setup my home RAID-1 server with Ubuntu Server 20.04
    in adopted old PC Dell Optiplex 760, I learned that most important thing
    in the RAID is to use software RAID instead proprietary hardware RAID partition file system. This is because software RAID devices can be
    fixed easier that proprietary.

    How ever my first software RAID-1 still works, so I have no opportunity
    to check this advice in practise.
    --
    Z totaliztycznym salutem!
    Jacek Marcin Jaworski, Pruszcz Gd., woj. Pomorskie, Polska Efc|Efc#, UE Efc-Efc|;
    tel.: +48-609-170-742, najlepiej w godz.: 5:00-5:55 lub 16:00-17:25; <jmj@energokod.gda.pl>, gpg: 4A541AA7A6E872318B85D7F6A651CC39244B0BFA;
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  • From Paul@nospam@needed.invalid to alt.os.linux on Sun Aug 2 19:38:09 2026
    From Newsgroup: alt.os.linux

    On Sun, 8/2/2026 5:37 PM, Jeff Gaines wrote:

    I am planning to set up a spare Asus Z170 motherboard as a homebuilt NAS, my QNAP TS451+ is driving me round the bend as it is so slow to administer from the browser front end, I would much prefer direct access.

    I have the option of Z170-K or Z170-P Asus board and am thinking of:

    Linux Mint xfce as the OS, I use it on my home media server and can find my way round although the front end seems to change nearly as much as Windows. Installation drive will be an NVMe.

    4 x 4 TB spinning drives (Iron Wolf) in RAID 6 using mdadm to give me about 7.5 TB usable and the ability to survive 2 x drive failures.

    I have seen some suggestions on Google that using zfs on the RAID drives may be an issue in the event of failure as it is proprietary and it's better to use EXT4.

    Any thoughts?

    This is a major project for me as a lifelong Windows user but my Linux Mint home media server works so well I'd like to give it a try.


    The feedback we got from RAID 5 users was "I really regret using
    the minimum number of disks". On RAID 5, these were people who used
    three disks, one disk failed and... maintenance problems awaited them.
    When this happened, none of these people reported back with
    definitive info on what that problem was.

    If the minimum is four drives for RAID 6, you should use more than that in your RAID 6.
    Just a guess. You should also keep your spare drive on-site (same lot), for maintenance simulation (simulate a need to rebuild, remove the spare drive
    and properly erase it before putting it back on your shelf).

    https://en.wikipedia.org/wiki/Standard_RAID_levels#RAID_6

    If you look at the article there, they have different computation
    options. You'll have to do a little more research, to find out
    whether there is a good option that does not overload a CPU-only
    scheme. RAID cards in the past have been quite expensive, but
    occasionally there are used RAID cards for sale, so about
    the best you can do there is about $50 for a used card. Which is
    significantly better than what they charge for new ones.

    There are forums where more storage people hang out, than on USENET.

    https://forums.servethehome.com/index.php

    Another forum was "2CPU", where a lot of builds involved server motherboards with two sockets (a couple Xeons maybe). Those people also built giant RAID arrays for fun. One individual, took two tower cases and joined them
    vertically to make an even larger case. And had a huge number of drives
    loaded as a result. According to this, the site shut down in 2019.

    https://www.bleepingcomputer.com/forums/t/716703/does-anyone-know-what-happened-to-2cpucom/

    Paul
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  • From Java Jive@java@evij.com.invalid to alt.os.linux on Mon Aug 3 00:38:57 2026
    From Newsgroup: alt.os.linux

    On 2026-08-02 22:37, Jeff Gaines wrote:

    [...] my QNAP TS451+ is driving me round the bend as it is so slow to administer from the browser front end, I would much prefer direct access.

    I have a TS251+ (same as yours only 2-bays), and I can't say I find it
    very slow, for although the web GUI is perhaps a little slow, the
    storage itself is very fast, and how often do you need to access it via
    the web GUI anyway? I don't need to do that more than once a month or
    so, if that. What aspect of the web GUI do you find slow?
    --

    Fake news kills!

    I may be contacted via the contact address given on my website: www.macfh.co.uk

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Java Jive@java@evij.com.invalid to alt.os.linux on Mon Aug 3 00:50:33 2026
    From Newsgroup: alt.os.linux

    On 2026-08-03 00:38, Paul wrote:
    On Sun, 8/2/2026 5:37 PM, Jeff Gaines wrote:

    I am planning to set up a spare Asus Z170 motherboard as a homebuilt NAS, my QNAP TS451+ is driving me round the bend as it is so slow to administer from the browser front end, I would much prefer direct access.

    I have the option of Z170-K or Z170-P Asus board and am thinking of:

    Linux Mint xfce as the OS, I use it on my home media server and can find my way round although the front end seems to change nearly as much as Windows. Installation drive will be an NVMe.

    4 x 4 TB spinning drives (Iron Wolf) in RAID 6 using mdadm to give me about 7.5 TB usable and the ability to survive 2 x drive failures.

    I have seen some suggestions on Google that using zfs on the RAID drives may be an issue in the event of failure as it is proprietary and it's better to use EXT4.

    Any thoughts?

    This is a major project for me as a lifelong Windows user but my Linux Mint home media server works so well I'd like to give it a try.

    The feedback we got from RAID 5 users was "I really regret using
    the minimum number of disks". On RAID 5, these were people who used
    three disks, one disk failed and... maintenance problems awaited them.
    When this happened, none of these people reported back with
    definitive info on what that problem was.

    If the minimum is four drives for RAID 6, you should use more than that in your RAID 6.
    [snip detail]
    My version of RAID is RAIN, Redundant Array of Independent NASs. Within
    each NAS I use JBOD to max out the storage, and a backup NAS syncs with
    the main NAS every night. Although this is more expensive, I believe
    it's more reliable, and I find it much easier to manage in that it
    avoids the sort of complications that you detail but that largely I've
    snipped in the interests of brevity.
    --

    Fake news kills!

    I may be contacted via the contact address given on my website: www.macfh.co.uk

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Lawrence =?iso-8859-13?q?D=FFOliveiro?=@ldo@nz.invalid to alt.os.linux on Mon Aug 3 02:01:24 2026
    From Newsgroup: alt.os.linux

    On Sun, 2 Aug 2026 19:38:09 -0400, Paul wrote:

    The feedback we got from RAID 5 users was "I really regret using the
    minimum number of disks". On RAID 5, these were people who used
    three disks, one disk failed and... maintenance problems awaited
    them. When this happened, none of these people reported back with
    definitive info on what that problem was.

    Were they thinking of the RAID setup as some kind of backup,
    perchance? Instead of merely the high-availability measure, which is
    all itrCOs good for?

    Some company, Aerospike I think it is, has generalized the RAID
    concept to use erasure codes. So you set up an array containing k data
    disks, plus j redundancy disks, for any values of j and k you choose.
    And in the resulting configuration, you can have up to j disks fail,
    in any combination, and your data will still be recoverable.
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  • From J.O. Aho@user@example.net to alt.os.linux on Mon Aug 3 08:18:28 2026
    From Newsgroup: alt.os.linux

    On 02/08/2026 23.37, Jeff Gaines wrote:

    I am planning to set up a spare Asus Z170 motherboard as a homebuilt
    NAS, my QNAP TS451+ is driving me round the bend as it is so slow to administer from the browser front end, I would much prefer direct access.

    I have the option of Z170-K or Z170-P Asus board and am thinking of:

    Linux Mint xfce as the OS, I use it on my home media server and can find
    my way round although the front end seems to change nearly as much as Windows. Installation drive will be an NVMe.

    If you are going to use it as NAS I would recommend to use a NAS
    specific distribution as TrueNAS/UnRAID. When upgrading all the drivers
    will be working, specially when you use zfs as the driver is outside the kernel. If you use a normal distribution, the kernel may be updated to a version which isn't compatible with the zfs driver and then you will
    fail to access your zfs. The NAS specific distributions will never have
    this issue as they see to that all will keep on working before release.


    4 x 4 TB spinning drives (Iron Wolf) in RAID 6 using mdadm to give me
    about 7.5 TB usable and the ability to survive 2 x drive failures.

    In zfs there is RAID-Z2 which is like RAID6 and without the need of
    using md. Btrfs do also have RAID-6 which don't require md, but still
    have some cases where it will loose data and would recommend you have a
    Linux compatible UPS to minimize issues with data loss (this sadly also applies to RAID-5, but all the other built in RAID modes are production stable).


    I have seen some suggestions on Google that using zfs on the RAID drives
    may be an issue in the event of failure as it is proprietary and it's
    better to use EXT4.

    zfs is open-source, it has advantages that ext4 never will have, just no matter which filesystem you end up with, do regular backups of the data
    you don't can't afford to loose.

    RAID will only save your ass when a drive breaks down, but will not fix
    data corruption or ms-windows client that runs malware that encrypts files.
    --
    //Aho

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Jeff Gaines@jgnewsid@outlook.com to alt.os.linux on Mon Aug 3 07:51:44 2026
    From Newsgroup: alt.os.linux

    On 03/08/2026 in message <114ol4b$sv72$1@dont-email.me> Java Jive wrote:

    If the minimum is four drives for RAID 6, you should use more than that in >>your RAID 6.
    [snip detail]
    My version of RAID is RAIN, Redundant Array of Independent NASs. Within >each NAS I use JBOD to max out the storage, and a backup NAS syncs with
    the main NAS every night. Although this is more expensive, I believe it's >more reliable, and I find it much easier to manage in that it avoids the >sort of complications that you detail but that largely I've snipped in the >interests of brevity

    How long has it been running? I used SSDs in my NAS (various makes) and
    had 3 fail, perhaps due to constant writes?
    --
    Jeff Gaines Dorset UK
    Tell me what you need, and I'll tell you how to get along without it.
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Jeff Gaines@jgnewsid@outlook.com to alt.os.linux on Mon Aug 3 07:56:24 2026
    From Newsgroup: alt.os.linux

    On 03/08/2026 in message <ndaq5kFn4fbU1@mid.individual.net> J.O. Aho wrote:

    I have seen some suggestions on Google that using zfs on the RAID drives >>may be an issue in the event of failure as it is proprietary and it's >>better to use EXT4.

    zfs is open-source, it has advantages that ext4 never will have, just no >matter which filesystem you end up with, do regular backups of the data
    you don't can't afford to loose.

    The article is here: https://forum.level1techs.com/t/best-fs-and-raid-mode-for-linux-desktops-in-2024/205382/2

    I don't know enough to know how much note to take of it.


    RAID will only save your ass when a drive breaks down, but will not fix
    data corruption or ms-windows client that runs malware that encrypts files.

    This will be the last backup in a line (although all on site), it's more a project to keep my brain cells active but I'd like to get it right :-)
    --
    Jeff Gaines Dorset UK
    Have you ever noticed that all the instruments searching for intelligent
    life are pointing away from Earth?
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Lawrence =?iso-8859-13?q?D=FFOliveiro?=@ldo@nz.invalid to alt.os.linux on Mon Aug 3 08:11:03 2026
    From Newsgroup: alt.os.linux

    On Mon, 3 Aug 2026 08:18:28 +0200, J.O. Aho wrote:

    When upgrading all the drivers will be working, specially when you
    use zfs as the driver is outside the kernel. If you use a normal distribution, the kernel may be updated to a version which isn't
    compatible with the zfs driver and then you will fail to access your
    zfs. The NAS specific distributions will never have this issue as
    they see to that all will keep on working before release.

    Or just avoid ZFS.

    zfs is open-source, it has advantages that ext4 never will have ...

    Linus Torvalds is not impressed with it.

    <https://www.realworldtech.com/forum/?threadid=189711&curpostid=189959>
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Jeff Gaines@jgnewsid@outlook.com to alt.os.linux on Mon Aug 3 08:47:48 2026
    From Newsgroup: alt.os.linux

    On 03/08/2026 in message <114pien$14qle$2@dont-email.me> Lawrence
    DOliveiro wrote:

    On Mon, 3 Aug 2026 08:18:28 +0200, J.O. Aho wrote:

    When upgrading all the drivers will be working, specially when you
    use zfs as the driver is outside the kernel. If you use a normal >>distribution, the kernel may be updated to a version which isn't
    compatible with the zfs driver and then you will fail to access your
    zfs. The NAS specific distributions will never have this issue as
    they see to that all will keep on working before release.

    Or just avoid ZFS.

    zfs is open-source, it has advantages that ext4 never will have ...

    Linus Torvalds is not impressed with it.

    <https://www.realworldtech.com/forum/?threadid=189711&curpostid=189959>

    That's interesting. thank you :-)
    --
    Jeff Gaines Dorset UK
    Though no-one can go back and make a new start, everyone can start from
    now and make a new ending.
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  • From Carlos E. R.@robin_listas@es.invalid to alt.os.linux on Mon Aug 3 12:03:06 2026
    From Newsgroup: alt.os.linux

    On 2026-08-03 09:51, Jeff Gaines wrote:
    On 03/08/2026 in message <114ol4b$sv72$1@dont-email.me> Java Jive wrote:

    If the minimum is four drives for RAID 6, you should use more than
    that in your RAID 6.
    [snip detail]
    My version of RAID is RAIN, Redundant Array of Independent NASs.
    Within each NAS I use JBOD to max out the storage, and a backup NAS
    syncs with the main NAS every night.-a Although this is more expensive,
    I believe it's more reliable, and I find it much easier to manage in
    that it avoids the sort of complications that you detail but that
    largely I've snipped in the interests of brevity

    How long has it been running? I used SSDs in my NAS (various makes) and
    had 3 fail, perhaps due to constant writes?

    Either the SSDs were bad quality, or the thing writes an awful amount of
    data. Or it is something else, like heat. You could try connecting the
    SSDs somewhere and use SMART on it to find out.
    --
    Cheers,
    Carlos E.R.
    ESEfc-Efc+, EUEfc-Efc|;
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Carlos E. R.@robin_listas@es.invalid to alt.os.linux on Mon Aug 3 12:07:34 2026
    From Newsgroup: alt.os.linux

    On 2026-08-03 08:18, J.O. Aho wrote:
    zfs is open-source, it has advantages that ext4 never will have, just no matter which filesystem you end up with, do regular backups of the data
    you don't can't afford to loose.

    I read that ZFS requires lots of ram and cpu.

    My raid6 setup uses XFS. I tried btrfs and it corrupted.
    --
    Cheers,
    Carlos E.R.
    ESEfc-Efc+, EUEfc-Efc|;
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Jeff Gaines@jgnewsid@outlook.com to alt.os.linux on Mon Aug 3 11:04:36 2026
    From Newsgroup: alt.os.linux

    On 03/08/2026 in message <ndb7aqFor3kU1@mid.individual.net> Carlos E. R. wrote:

    How long has it been running? I used SSDs in my NAS (various makes) and >>had 3 fail, perhaps due to constant writes?

    Either the SSDs were bad quality, or the thing writes an awful amount of >data. Or it is something else, like heat. You could try connecting the
    SSDs somewhere and use SMART on it to find out.

    Those SSDs are definitely deceased so it's no good trying to read them :-)
    --
    Jeff Gaines Dorset UK
    All those who believe in psychokinesis raise my hand.
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Java Jive@java@evij.com.invalid to alt.os.linux on Mon Aug 3 12:04:58 2026
    From Newsgroup: alt.os.linux

    On 2026-08-03 08:51, Jeff Gaines wrote:

    On 03/08/2026 in message <114ol4b$sv72$1@dont-email.me> Java Jive wrote:

    My version of RAID is RAIN, Redundant Array of Independent NASs.
    Within each NAS I use JBOD to max out the storage, and a backup NAS
    syncs with the main NAS every night.-a Although this is more expensive,
    I believe it's more reliable, and I find it much easier to manage in
    that it avoids the sort of complications that you detail but that
    largely I've snipped in the interests of brevity

    How long has it been running? I used SSDs in my NAS (various makes) and
    had 3 fail, perhaps due to constant writes?

    I bought the first QNAP TS-251+ mid 2019, and for a while its backup was
    the Zyxel NSA221 (very old and very slow) that it replaced. I bought
    the second mid 2021, and since then it's been the backup for the first.

    I upgraded the RAM in both at time of purchase to 8GB. I use spinning
    HDDs, which I have upgraded once. The units are so fast that when the
    second QNAP was bought, to my astonishment and pleasure it synced
    completely to the first overnight, whereas the Zyxel would take a month
    to completely sync if a HDD failure necessitated a complete rebuild of it!

    Note that I have customised my QNAPs quite a bit, particularly I have installed some non-QNAP software, and I use an ssh console for some
    purposes, and probably use this more often than I use the web GUI. I
    have added an autoexec.sh to do a number of things that either fix QNAP-specific customisations to make them more Linux standard or else
    add things that weren't there before. The process of enabling and
    copying in an autoexec.sh is somewhat involved, so I won't go into that
    here, just list what mine does:

    1) QNAP kills the root/.ssh directory - delete this, copy in a replacement, and set permissions so that it works;

    2) Copy in an NFS exports file and enable it;

    3) Kill QNAP's customisation of rsyncd and replace it with
    standard behaviour;

    4) Copy in a Samba smb.conf file and enable it;

    5) Restore installed extension software installed under /opt;

    6) Create a temp directory with an environment variable pointing
    to it (needed for Perl);

    7) Add some environment variables and similar to the end of
    profile.sh;

    8) Add some tasks to crontabs and restart.

    You might point out that 2 through 4 can be done via the web GUI, which
    is true, I just prefer doing it this way.
    --

    Fake news kills!

    I may be contacted via the contact address given on my website: www.macfh.co.uk

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Stanislav N. aka pztrn@pztrn@oldproto.invalid to alt.os.linux on Mon Aug 3 21:04:48 2026
    From Newsgroup: alt.os.linux

    03.08.2026 11:18, J.O. Aho wrote:
    On 02/08/2026 23.37, Jeff Gaines wrote:

    I am planning to set up a spare Asus Z170 motherboard as a homebuilt
    NAS, my QNAP TS451+ is driving me round the bend as it is so slow to
    administer from the browser front end, I would much prefer direct access.

    I have the option of Z170-K or Z170-P Asus board and am thinking of:

    Linux Mint xfce as the OS, I use it on my home media server and can
    find my way round although the front end seems to change nearly as
    much as Windows. Installation drive will be an NVMe.

    If you are going to use it as NAS I would recommend to use a NAS
    specific distribution as TrueNAS/UnRAID. When upgrading all the drivers
    will be working, specially when you use zfs as the driver is outside the kernel. If you use a normal distribution, the kernel may be updated to a version which isn't compatible with the zfs driver and then you will
    fail to access your zfs. The NAS specific distributions will never have
    this issue as they see to that all will keep on working before release.


    Make sure you're using DKMS for zfs module and everything will be pretty
    much okay.

    And always stick to LTS kernel of course. This is a universal suggestion
    for all out-of-tree filesystems.
    --
    WBR, Stanislav Nikitin a.k.a. pztrn.
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  • From rbowman@bowman@montana.com to alt.os.linux on Mon Aug 3 17:27:54 2026
    From Newsgroup: alt.os.linux

    On Mon, 3 Aug 2026 12:07:34 +0200, Carlos E. R. wrote:

    On 2026-08-03 08:18, J.O. Aho wrote:
    zfs is open-source, it has advantages that ext4 never will have, just
    no matter which filesystem you end up with, do regular backups of the
    data you don't can't afford to loose.

    I read that ZFS requires lots of ram and cpu.

    My raid6 setup uses XFS. I tried btrfs and it corrupted.

    btrfs isn't recommended for RAID 6, which the OP want's to use.
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Carlos E. R.@robin_listas@es.invalid to alt.os.linux on Mon Aug 3 23:26:12 2026
    From Newsgroup: alt.os.linux

    On 2026-08-03 19:27, rbowman wrote:
    On Mon, 3 Aug 2026 12:07:34 +0200, Carlos E. R. wrote:

    On 2026-08-03 08:18, J.O. Aho wrote:
    zfs is open-source, it has advantages that ext4 never will have, just
    no matter which filesystem you end up with, do regular backups of the
    data you don't can't afford to loose.

    I read that ZFS requires lots of ram and cpu.

    My raid6 setup uses XFS. I tried btrfs and it corrupted.

    btrfs isn't recommended for RAID 6, which the OP want's to use.

    Not correct. btrfs with its own implementation of raid is known to be problematic. There is no such report when using software raid + btrfs.
    --
    Cheers,
    Carlos E.R.
    ESEfc-Efc+, EUEfc-Efc|;
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Lawrence =?iso-8859-13?q?D=FFOliveiro?=@ldo@nz.invalid to alt.os.linux on Mon Aug 3 23:26:15 2026
    From Newsgroup: alt.os.linux

    On Mon, 3 Aug 2026 12:07:34 +0200, Carlos E. R. wrote:

    I read that ZFS requires lots of ram and cpu.

    Worse than that: it doesnrCOt use the kernelrCOs mechanisms for managing
    its RAM cache, in particular.

    Normal Linux filesystems use RAM for caching that the kernel knows
    about. This means that, for example, when a regular application needs
    more RAM, the kernel can flush some of that cache to make room. And, conversely, if applications are not consuming all the RAM, the kernel
    can automatically make use of whatrCOs free for filesystem caching.

    The ZFS implementation doesnrCOt allow for this kind of flexibility.

    I keep saying, ZFS is to filesystems what Java is to programming
    languages: it will happily chew up all the RAM on your system. It is
    best used on a dedicated storage appliance, that isnrCOt running
    anything else resembling rCLapplicationsrCY.
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From J.O. Aho@user@example.net to alt.os.linux on Tue Aug 4 15:40:03 2026
    From Newsgroup: alt.os.linux

    On 03/08/2026 10.11, Lawrence DrCOOliveiro wrote:
    On Mon, 3 Aug 2026 08:18:28 +0200, J.O. Aho wrote:

    Linus Torvalds is not impressed with it.

    <https://www.realworldtech.com/forum/?threadid=189711&curpostid=189959>

    It's not easy to impress him, it's more likely you get to see his middle finger ;)
    --
    //Aho
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From J.O. Aho@user@example.net to alt.os.linux on Tue Aug 4 15:52:52 2026
    From Newsgroup: alt.os.linux

    On 03/08/2026 12.07, Carlos E. R. wrote:
    On 2026-08-03 08:18, J.O. Aho wrote:
    zfs is open-source, it has advantages that ext4 never will have, just
    no matter which filesystem you end up with, do regular backups of the
    data you don't can't afford to loose.

    I read that ZFS requires lots of ram and cpu.

    ZFS has it's issues, but there is no prefect file system, there are
    those that works well for you and those that don't.


    My raid6 setup uses XFS. I tried btrfs and it corrupted.

    btrfs built in raid5/6 do most likely get corrupted, as long as your
    md-raid6 or hw-raid6 don't have issues btrfs should live well on it,
    sure there been some special cases where a bug in btrfs has caused some
    people to have a bad surprise. Also having a too small btrfs can cause problems, recommendation go with at least 32G in size. There are some
    balance options you should avoid, that can cause damage to internal meta
    data.

    Myself I have had issues when I had RAID10 and bcache where the checksum didn't match, in the end ended up to migrate to SSD when they still were expensive, but nowhere as expensive as today...
    --
    //Aho

    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Lawrence =?iso-8859-13?q?D=FFOliveiro?=@ldo@nz.invalid to alt.os.linux on Tue Aug 4 22:45:24 2026
    From Newsgroup: alt.os.linux

    On Tue, 4 Aug 2026 15:40:03 +0200, J.O. Aho wrote:

    On 03/08/2026 10.11, Lawrence DrCOOliveiro wrote:

    On Mon, 3 Aug 2026 08:18:28 +0200, J.O. Aho wrote:

    Linus Torvalds is not impressed with [ZFS].

    <https://www.realworldtech.com/forum/?threadid=189711&curpostid=189959>

    It's not easy to impress him, it's more likely you get to see his
    middle finger ;)

    The Linux kernel is full of quality code that he, or his trusted
    lieutenants, have personally vetted.

    The interesting thing about ZFS is that Oracle itself will not offer
    it. If you buy their rCLUnbreakable LinuxrCY, you will get the option of
    btrfs, but not ZFS.

    DonrCOt they have any confidence in the quality of their own product?
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From J.O. Aho@user@example.net to alt.os.linux on Wed Aug 5 08:45:48 2026
    From Newsgroup: alt.os.linux

    On 05/08/2026 00.45, Lawrence DrCOOliveiro wrote:

    The interesting thing about ZFS is that Oracle itself will not offer
    it. If you buy their rCLUnbreakable LinuxrCY, you will get the option of btrfs, but not ZFS.

    It's the CDDL-licens that ZFS was released under and which then the fork OpenZFS has been released under, it's not compatible with GPL according
    to Free Software Foundation and I think this is what keeps it out of the
    Linux source.


    DonrCOt they have any confidence in the quality of their own product?

    OpenZFS has nothing to do with Oracle (or any future Solaris source code owner), those I don't think they want the extra work to maintain it for
    the unbreakable linux, better to go with something already in the kernel.
    --
    //Aho
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Lawrence =?iso-8859-13?q?D=FFOliveiro?=@ldo@nz.invalid to alt.os.linux on Wed Aug 5 07:15:25 2026
    From Newsgroup: alt.os.linux

    On Wed, 5 Aug 2026 08:45:48 +0200, J.O. Aho wrote:

    On 05/08/2026 00.45, Lawrence DrCOOliveiro wrote:

    The interesting thing about ZFS is that Oracle itself will not
    offer it. If you buy their rCLUnbreakable LinuxrCY, you will get the
    option of btrfs, but not ZFS.

    It's the CDDL-licens that ZFS was released under and which then the
    fork OpenZFS has been released under, it's not compatible with GPL
    according to Free Software Foundation and I think this is what keeps
    it out of the Linux source.

    But Oracle *own* the copyright on it, regardless. They are free to do
    whatever they want with it. They could offer it with their Linux, but
    they canrCOt, or wonrCOt. Why not?

    DonrCOt they have any confidence in the quality of their own product?

    OpenZFS has nothing to do with Oracle (or any future Solaris source
    code owner), those I don't think they want the extra work to
    maintain it for the unbreakable linux, better to go with something
    already in the kernel.

    They have the original ZFS; if OpenZFS is an inferior substitute, they
    can offer the Genuine Originalrao, and market it as such. Why donrCOt
    they?
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Stanislav N. aka pztrn@pztrn@oldproto.invalid to alt.os.linux on Wed Aug 5 13:00:56 2026
    From Newsgroup: alt.os.linux

    05.08.2026 12:15, Lawrence DrCOOliveiro wrote:
    On Wed, 5 Aug 2026 08:45:48 +0200, J.O. Aho wrote:

    On 05/08/2026 00.45, Lawrence DrCOOliveiro wrote:

    The interesting thing about ZFS is that Oracle itself will not
    offer it. If you buy their rCLUnbreakable LinuxrCY, you will get the
    option of btrfs, but not ZFS.

    It's the CDDL-licens that ZFS was released under and which then the
    fork OpenZFS has been released under, it's not compatible with GPL
    according to Free Software Foundation and I think this is what keeps
    it out of the Linux source.

    But Oracle *own* the copyright on it, regardless. They are free to do whatever they want with it. They could offer it with their Linux, but
    they canrCOt, or wonrCOt. Why not?

    Who'll buy Solaris then? :-)
    --
    WBR, Stanislav Nikitin a.k.a. pztrn.
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Anssi Saari@anssi.saari@usenet.mail.kapsi.fi to alt.os.linux on Wed Aug 5 12:09:41 2026
    From Newsgroup: alt.os.linux

    Lawrence DrCOOliveiro <ldo@nz.invalid> writes:

    But Oracle *own* the copyright on it, regardless. They are free to do whatever they want with it. They could offer it with their Linux, but
    they canrCOt, or wonrCOt. Why not?

    I thought the Boracle Linux or whatever is just a rebadged RHEL? So
    since Red Hat doesn't provide ZFS, Oracle doesn't either.
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From J.O. Aho@user@example.net to alt.os.linux on Wed Aug 5 21:37:13 2026
    From Newsgroup: alt.os.linux

    On 05/08/2026 09.15, Lawrence DrCOOliveiro wrote:

    But Oracle *own* the copyright on it, regardless. They are free to do whatever they want with it.

    Oracle has copyright on the original code from which is still from the
    time when OpenZFS forked it from Sun, but all the code written after
    that they do not own, sure they could fork OpenZFS call it something UnbreakableZFS as long as they don't change the license...

    They could offer it with their Linux, but they canrCOt, or wonrCOt. Why not?

    The cost for the developer and on top of that opensource that everyone
    can just fork, that why they don't. Oracle is mainly a closesource
    company selling SAP to easily fooled customers.


    They have the original ZFS; if OpenZFS is an inferior substitute, they
    can offer the Genuine Originalrao, and market it as such. Why donrCOt
    they?

    They fired the team who was working with the Solaris ZFS, there is only
    a handful developers left to just take care of the most critical bugs
    for as long as the longest support contract still is valid.
    --
    //Aho
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Lawrence =?iso-8859-13?q?D=FFOliveiro?=@ldo@nz.invalid to alt.os.linux on Wed Aug 5 21:41:15 2026
    From Newsgroup: alt.os.linux

    On Wed, 05 Aug 2026 12:09:41 +0300, Anssi Saari wrote:

    Lawrence DrCOOliveiro <ldo@nz.invalid> writes:

    But Oracle *own* the copyright on it, regardless. They are free to
    do whatever they want with it. They could offer it with their
    Linux, but they canrCOt, or wonrCOt. Why not?

    I thought the Boracle Linux or whatever is just a rebadged RHEL? So
    since Red Hat doesn't provide ZFS, Oracle doesn't either.

    DonrCOt they want to offer a competitive advantage? I.e. rCLeverything
    that Red Hat gives you, plus thisrCY? ZFS would be an obvious
    competitive advantage -- assuming that customers saw it as valuable.

    WouldnrCOt they?
    --- Synchronet 3.22a-Linux NewsLink 1.2
  • From Stanislav N. aka pztrn@pztrn@oldproto.invalid to alt.os.linux on Thu Aug 6 09:42:57 2026
    From Newsgroup: alt.os.linux

    06.08.2026 02:41, Lawrence DrCOOliveiro wrote:
    On Wed, 05 Aug 2026 12:09:41 +0300, Anssi Saari wrote:

    Lawrence DrCOOliveiro <ldo@nz.invalid> writes:

    But Oracle *own* the copyright on it, regardless. They are free to
    do whatever they want with it. They could offer it with their
    Linux, but they canrCOt, or wonrCOt. Why not?

    I thought the Boracle Linux or whatever is just a rebadged RHEL? So
    since Red Hat doesn't provide ZFS, Oracle doesn't either.

    DonrCOt they want to offer a competitive advantage? I.e. rCLeverything
    that Red Hat gives you, plus thisrCY? ZFS would be an obvious
    competitive advantage -- assuming that customers saw it as valuable.

    WouldnrCOt they?
    Only if they were interested in. And it looks like they aren't.

    It is easier to make money on Linux now.
    --
    WBR, Stanislav Nikitin a.k.a. pztrn.
    --- Synchronet 3.22a-Linux NewsLink 1.2