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From: jin@gracie.lbl.gov (Jin Guojun[ITG])
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: disklabel for ST15230N under 2.1.x-RELEASE
Date: 8 Aug 1996 19:27:37 GMT
Organization: Lawrence Berkeley Laboratory
Lines: 44
Message-ID: <4udf39$3us@overload.lbl.gov>
References: <4tjfo1$o6p@overload.lbl.gov> <4tski5$nsr@godzilla.zeta.org.au> <4u85te$1f8@overload.lbl.gov> <4ub3qk$dev@uriah.heep.sax.de>
NNTP-Posting-Host: gracie.lbl.gov
In article <4ub3qk$dev@uriah.heep.sax.de>,
J Wunsch <joerg_wunsch@uriah.heep.sax.de> wrote:
>> >>> dd if=/dev/rsd0 of=/dev/rsd1 bs=64k
>> >>>Of course, this assumes number_of_blocks(sd1) >= number_of_blocks(sd0).
>> >>Apperently, it is not.
>> >
>> >If the disks have different sizes, then copying the labels will probably
>> >give a bogus label.
>
>> No No. I am talking the same type of disks. All the disks are in the
>> same type Seagate HAWK 4.3 ST15230N
>
>You are self-condradictionary. Three postings before, you wrote that
>they are ``apparently not'' identical.
Oh, excuse me. I mean that "it ("dd") is not working". There were other things
before, and said it should work. I guess that I put "not" at a wrong place.
>> The only difference is that you use bs=64k, I used bs=1024k.
>> For my understanding, it should not make different, should it?
>It's not different, but doesn't gain you anything either, since
>physio() slices the requests into chunks of 64 KB anyway.
>
>Have you really been using the abovementioned device nodes? Or did
>you use ``/dev/sd0'' or ``/dev/rsd0c'' or something else? *This*
>could be a difference.
Everything is copied from one xterm and pasted to another xterm. Nothing was
faked. I did twice and took about 6 hours.
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--
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