Date: Sat, 28 Sep 1996 22:25:45 +0300 (EET DST) From: mika ruohotie <bsdscsi@shadows.aeon.net> To: freebsd-isp@freebsd.org Cc: scsi@freebsd.org Subject: Re: striping/mirroring? Message-ID: <199609281925.WAA05358@shadows.aeon.net> In-Reply-To: <v02140b00ae72b4dbc331@[208.2.87.4]> from Richard Wackerbarth at "Sep 28, 96 06:15:34 am"
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> I'm lost. How can the mirror be slower than the drive that it is mirroring > unless it is a "read mostly" situation and you are guaranteed no write > bursts? hmm? > >seems to me answer is no. > I think that the answer is "yes". You can you elaborate? Describe the > configuration that you have in mind. ack... i admit first i had minor thinking error when i was planning the system at the first time... now, what i want to do is this: strip with few drives, so that i can get speed, and then mirror it all to one "safe" disk, so that i wont lost all of my data if the striping crashes... but now that i think of it, i will lose all the speed i would gain by using ccd if i'd have to "wait" until it's all being written to a one drive... so i would love to hear suggestions how to get more speed than just mounting my system thru several drives, but still having some "safety" left... actually, so that i wont waste any more of anyone's time, i think i can settle down if i get an opinion/numbers how much slower the disks will perform if i use four 2gig drives (two channel adapter used) compared if i would use them ccded? the server will be www/ftp machine which should be as fast as possible, still being safe what comes to loss of data in crashes... i was planning to run 2.1.5 on it. or should i use -current? (sent to freebsd-isp too since i think this is more isp related) mickey -- mika@aeon.net mika ruohotie net/sys admin
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