Date: Sun, 4 Nov 2018 18:58:38 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: Rick Macklem <rmacklem@uoguelph.ca> Cc: Julian Elischer <julian@freebsd.org>, Andriy Gapon <avg@FreeBSD.org>, FreeBSD Filesystems <freebsd-fs@freebsd.org> Subject: Re: How to fill in the fsid for file systems? Message-ID: <20181104165838.GA5335@kib.kiev.ua> In-Reply-To: <YTOPR0101MB11625B448278C5FAA1625772DDC90@YTOPR0101MB1162.CANPRD01.PROD.OUTLOOK.COM> References: <YTOPR0101MB11620BAF0E206EE36E927A5ADDF30@YTOPR0101MB1162.CANPRD01.PROD.OUTLOOK.COM> <20181030012240.GM5335@kib.kiev.ua> <YTOPR0101MB11621427AF47133A93311E16DDCD0@YTOPR0101MB1162.CANPRD01.PROD.OUTLOOK.COM> <e7813a64-59c2-67a1-3471-b32a6ca42ef8@FreeBSD.org> <YTOPR0101MB116207BA89FB66EE9B1AAF01DDCD0@YTOPR0101MB1162.CANPRD01.PROD.OUTLOOK.COM> <a831d660-1ed9-ef21-f457-8e1e986b96f2@FreeBSD.org> <YTOPR0101MB11621C0D5F4F4D9BED169110DDCF0@YTOPR0101MB1162.CANPRD01.PROD.OUTLOOK.COM> <c98b999c-c4b8-55fe-adef-ac53e439487b@freebsd.org> <YTOPR0101MB1162A8CA4B3AAF230E73158DDDC90@YTOPR0101MB1162.CANPRD01.PROD.OUTLOOK.COM> <YTOPR0101MB11625B448278C5FAA1625772DDC90@YTOPR0101MB1162.CANPRD01.PROD.OUTLOOK.COM>
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On Sun, Nov 04, 2018 at 03:47:16PM +0000, Rick Macklem wrote: > Oh, and I am not sure what happens w.r.t. the fsid for UFS snapshots? Superblock for the snapshot is the verbatim copy of the superblock for the actual UFS volume. As the consequence, their fsids are same. You cannot quite substitute the real export by a snapshot export, because snapshot is read-only. But if it is fine, equal fsids are also fine.
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