# [OmniOS-discuss] LX Program Issue

Илья Кулагин kiv at kiv.pp.ru
Tue Jan 10 14:44:26 UTC 2017

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    Hi MT!

    And which significant differences I see in zfs properties (sorry for
    HTML but without it -- the difference is not so evident):

    |Good |
    	|Broken |

    	| |
    	| |

    	|NAME        PROPERTY              VALUE                  SOURCE|
    	|NAME        PROPERTY              VALUE                  SOURCE|

    	|main/zones  atime                 on                     default |
    	|main/zones  atime                 off                    local |

    	|main/zones  aclmode               discard                default |
    	|main/zones  aclmode               passthrough            local |

    	|main/zones  aclinherit            restricted             default |
    	|main/zones  aclinherit            passthrough            local |

    	|main/zones  utf8only              off                   -|
    	|main/zones  utf8only              on                     -|

    	|main/zones  normalization         none                   -|
    	|main/zones  normalization         formD                 -|

    	|main/zones  casesensitivity       sensitive             -|
    	|main/zones  casesensitivity       insensitive           -|

    	|main/zones  nbmand                off                    default |
    	|main/zones  nbmand                on                     local |

    	||

    1. Atime. Maybe this backup software relies on atime some way? Anyway,
    atime for root FS is important.
    2. Aclmode+aclinherit. These are for ACLs. Non-defaults are used for
    shares, for root FS the default is must.
    3. Utf8only+normalization+casesensitivity. These are for file names.
    Maybe backup assumes that, ex., .lock and .LOCK are different files
    (usually on UNIX and Linux tis is true ;) ). BTW Linux (like UNIX or BSD
    or evem MacOS) likes case-sensitivity and "insensitive" is for network
    shares for windows-like clients.
    4. Nbmand. This is some kind of locking, I don't know details. But I
    also think that non-default is not a good idea for linux root.

    So, I think that "right column" is not siutable as linux root filesystem
    - because of case insensitivity, atime=off and uncommon acls+nbmand.

    This is my opinion. And if You want - You definitely can fix these
    settings one by one and realize what is the unique cause of backup
    creash. It seems so.

    --
    С уважением, Илья Кулагин

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