Date: Tue, 02 Jan 2007 16:10:53 -0500 From: Michael Proto <mike@jellydonut.org> To: Willem Jan Withagen <wjw@digiware.nl> Cc: stable@freebsd.org Subject: Re: running mksnap_ffs Message-ID: <459ACA5D.4010208@jellydonut.org> In-Reply-To: <459ABB40.7050603@digiware.nl> References: <459ABB40.7050603@digiware.nl>
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Willem Jan Withagen wrote: > Hi, > > I got the following Filesystem: > Filesystem Size Used Avail Capacity iused ifree %iused > /dev/da0a 1.3T 422G 823G 34% 565952 182833470 0% > > Running of a 3ware 9550, on a dual core Opteron 242 with 1Gb. > The system is used as SMB/NFS server for my other systems here. > > I would like to make weekly snapshots, but manually running mksnap_ffs > freezes access to the disk (I sort of expected that) but the process > never terminates. So I let is sit overnight, but looking a gstat did not > reveil any activity what so ever... > The disk was not released, mksnap_ffs could not be terminated. > And things resulted in me rebooting the system. > > So: > - How long should I expect making a snapshot to take: > 5, 15, 30min, 1, 2 hour or even more??? > - How do I diagnose the reason why it is not terminating? > > --WjW For a point of reference, I have 2 300GB SerialATA disks in a RAID1 config that I take daily snapshots of. df info: Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/ar0s1d 283810134 160945668 117188264 58% /r1 As of last night, this snapshot took 18m59.77s to complete. -Proto
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