Date: Fri, 21 Nov 2008 10:01:10 +0100 From: "Johan Hendriks" <Johan@double-l.nl> To: "Wojciech Puchar" <wojtek@wojtek.tensor.gdynia.pl> Cc: freebsd-questions@freebsd.org Subject: RE: ZFS Recovery Tools Message-ID: <57200BF94E69E54880C9BB1AF714BBCB5DE2B0@w2003s01.double-l.local> References: <02c801c94b40$4b6a2f10$e23e8d30$@za.net> <20081120204756.O16829@wojtek.tensor.gdynia.pl> <f84c38580811201255o1a207f97u8cb4078d03911fa9@mail.gmail.com> <20081120222909.K17356@wojtek.tensor.gdynia.pl><139b44430811202326j6eafb93fgde2a55c1564da68f@mail.gmail.com> <20081121094146.P19920@wojtek.tensor.gdynia.pl>
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> What does MAXPHYS mean (yes max raw I/O transfer) and do? A little > bit more specific if you may. how large can be single read from disk. when you say read 2 files in the same time, FreeBSD will readahead at = most=20 MAXPHYS from one file, then from file 2, from file 1 etc. 128kB/s is way too much for todays drives, that can read 1MB within one=20 access time. 128kB/s is way to much , and you set it to 1024, or did you mean way to = low ? Regards, Johan Hendriks No virus found in this outgoing message. Checked by AVG - http://www.avg.com=20 Version: 8.0.175 / Virus Database: 270.9.4/1795 - Release Date: = 17-11-2008 17:24
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