Date: Mon, 12 Feb 2007 23:13:08 -1000 From: Randy Bush <randy@psg.com> To: Oliver Fromme <olli@lurza.secnetix.de> Cc: freebsd-fs@FreeBSD.ORG, aronesimi@yahoo.com Subject: Re: comments on newfs raw disk ? Safe ? (7 terabyte array) Message-ID: <17873.33060.746546.773210@roam.psg.com> References: <506226.11053.qm@web58610.mail.re3.yahoo.com> <200702121552.l1CFqi6q046650@lurza.secnetix.de>
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this has been a wonderfully well-timed thread as i am about to hack a 4tb array tomorrow afternoon. the normal spindle is separate and partitioned to death and newfsed using the defaults. with 2gb of ram, i figure 6gb swap just in case two userland hogs are running at once, e.g. some hog while background fsck is running. the 4tb will be used as a dump/restore target only. so i am thinking few files, relatively big ones, little i/o and more write than read. so my current plan is newfs -b 16384 -f 2048 -i 262144 i would crank up even further, but these are the largest numbers mentioned in tuning(7). i will leave -m alone for now. does this seem reasonable? thank you all for this thread. randy
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