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Mail Archives: cygwin/2023/12/07/01:42:34

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Message-ID: <44fb3609-4170-424d-a438-cadab1966f94@shaddybaddah.name>
Date: Thu, 7 Dec 2023 17:42:04 +1100
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User-Agent: Mozilla Thunderbird
Subject: Re: Sparse file support for SMB by default? Re: Comment about
"Cygwin: sparse support: enable automatic sparsifying of files on SSDs",
extend feature to VMware/qemu disks?
To: cygwin AT cygwin DOT com
References: <CALXu0Udckh5XVXr23yaz1Fg1DoJ_12jE+XKo-jukDPoeL_vdZA AT mail DOT gmail DOT com>
<ZWm4xf0yfNjYqL-V AT calimero DOT vinschen DOT de>
<CALXu0Ue3LjqdZKgK46=E-TgXBunUn6=LHqKi1Y5-N1hoAA_Fcg AT mail DOT gmail DOT com>
<ZXBBJJ18Q3y4CSBx AT calimero DOT vinschen DOT de>
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From: Shaddy Baddah via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Shaddy Baddah <lithium-cygwin AT shaddybaddah DOT name>
Sender: "Cygwin" <cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com>

Hi Corinna,

On 6/12/2023 8:38 pm, Corinna Vinschen via Cygwin wrote:

> If you want to see if a filesystem supports that flag, just use the
> /usr/lib/csih/getVolInfo tool:
>
>    $ /usr/lib/csih/getVolInfo .
>    Device Type        : 7
>    Characteristics    : 20020
>    Volume Name        : <root>
>    Serial Number      : 2292001085
>    Max Filenamelength : 255
>    Filesystemname     : <NTFS>
>    Flags              : 3e72eff
>      FILE_CASE_SENSITIVE_SEARCH        : TRUE
...
>      FILE_SUPPORTS_GHOSTING            : FALSE

Is is worth it/possible to extend this getVolInfo to also include the
SSINFO_FLAGS_NO_SEEK_PENALTY flag in the output?-- Regards, Shaddy


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