Date: Mon, 06 Dec 2010 16:28:44 -0500 From: jhell <jhell@DataIX.net> To: Patrick Proniewski <patpro@patpro.net> Cc: FreeBSD Filesystems <freebsd-fs@freebsd.org> Subject: Re: auto-mounting ZFS snapshots Message-ID: <4CFD558C.2060202@DataIX.net> In-Reply-To: <DCA2288C-81EF-453D-9DC9-25A54F4C69A7@patpro.net> References: <4524EE89-E0A2-4CCF-92F9-80BB709C4BF6@patpro.net> <AANLkTikNJuJPMJ5Ktwi6TiOjCBr7WGrPN5UfJswAbfCw@mail.gmail.com> <DCA2288C-81EF-453D-9DC9-25A54F4C69A7@patpro.net>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 12/06/2010 16:13, Patrick Proniewski wrote: > On 6 déc. 2010, at 18:20, Freddie Cash wrote: > >> FreeBSD automounts the "hidden" .zfs filesystem hierarchy where >> snapshots are "stored" automatically. No need for amd. > > The zfs man page reads: > > File system snapshots can be accessed under the ".zfs/snapshot" > direc- tory in the root of the file system. Snapshots are > automatically mounted on demand and may be unmounted at regular > intervals. The visi- bility of the ".zfs" directory can be controlled > by the "snapdir" prop- erty. > > "may be unmounted at regular intervals" <-- what about this? Do I > have to create a periodic script that'll unmount snapshots? And if > so, how can I make a script that'll unmount only snapshots mounted > for over, say, 1 hour? No this is a no worry type of thing. This is a transparent process that handles what is available. Just consider them mounted all the time but you will not see them. Play with it a little and see what it looks like. mount(1) will not even show them as mounted so there is no worries here. The correct thing happens to keep you from shooting yourself in the foot. - -- jhell,v -----BEGIN PGP SIGNATURE----- iQEcBAEBAgAGBQJM/VWMAAoJEJBXh4mJ2FR+rksH+wRM2iGqZGRxJ+HqgBbdl1PT /ppl3Wvf5S+RQaltEYuL5H4oYgfKW08R3isP3zrHIGcfhcoef0ehi33dH0ZZCUGr aOPB9WspWy46OQhz6i5SRuZCGl1cvauT63zufi4meSwlT4e0el16JcQIU0W1DX0s 8if7oah+ZaldHmJscfU6Rv/kw+yNnv40s7XFMSnVGEOaX93+lTts2vNCLZPRs5pF bhPQW1ueNgrV4g+VSeC/N9RuClXHWQXXvehMxosrfvaeB/W06R+xI9c9u6wzKDl1 ZnPKNGhG2ej6dTdpST15k2vj0bYD2JESat/1U95UQShXyvqhNnn4s2PYEVxxNao= =JK4c -----END PGP SIGNATURE-----
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