Date: Tue, 15 Jul 2008 01:25:23 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Steve Bertrand <steve@ibctech.ca> Cc: freebsd-questions@freebsd.org Subject: Re: Calculating disk space with ZFS Message-ID: <20080715062523.GA73799@dan.emsphone.com> In-Reply-To: <487BFD29.5030708@ibctech.ca> References: <487BFD29.5030708@ibctech.ca>
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In the last episode (Jul 14), Steve Bertrand said: > I'm configuring Amanda over ZFS, with plans for a five 'tape' > diskless cycle. > > When I'm calculating the size of each 'tape', should I divide up my > dedicated backup space based on a 'df -h', or a 'zpool list'? > > Assume that if I go by the 'zpool list' command, I'd like to allocate > 1.8TB, divided by five to tapes. Should I use this number, or would > it be more appropriate to slice up the space based on the 'df -h' > below? I'm assuming the latter, but I'd just like to ask for > clarification. > > amanda# zpool list > NAME SIZE USED AVAIL CAP HEALTH ALTROOT > storage 1.82T 2.86G 1.82T 0% ONLINE - zfs list will give you a more accurate number, I think. At least all the posts matching this search seem to say so: http://www.google.com/search?q=site:mail.opensolaris.org+"zpool+list"+"zfs+list" > amanda# df -h > Filesystem Size Used Avail Capacity Mounted on > storage 1.3T 2.1G 1.3T 0% / > devfs 1.0K 1.0K 0B 100% /dev -- Dan Nelson dnelson@allantgroup.com
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