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Y'all are correct - RAID 1 is mirroring, not RAID 5. '1' is what
the disks are. <another heavy sigh> I still blame the '60's.<br>
<br>
David<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 06/11/15 17:11, david wrote:<br>
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<blockquote cite="mid:557A078D.7030204@knology.net" type="cite">
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I'm thinking about putting all the computers on the network disk
array, including the SOC's: beaglebone blacks, arduino mega256,
and the RPi2. I would not mind doing the compiles (and maybe even
the booting!) on the hard drives instead of the limited-life SD
cards and 'flash' that are on the SOC's. Any of you guys done
that? Everything in the house is 1Gb Ethernet. If only I could
get that to the outside world <heavy sigh.> <span
class="moz-smiley-s1"><span> :-) </span></span><br>
Already have the BBB's booting of the SD card, which you have to
do with the rev B's and their 2 Gb size..<br>
<br>
David<br>
<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 06/11/15 17:01, david wrote:<br>
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<blockquote cite="mid:557A0534.1000104@knology.net" type="cite">
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There was an itsy-bitsy blurb about it on Debian's site but
there were no details given and, doing Yet Another Fresh Install
(copyright), I could not find it in any of the auto OR manual
disk setups. <sigh> This was less than a month ago.<br>
<br>
David<br>
<br>
<br>
<div class="moz-cite-prefix">On 06/11/15 16:56, Brian Oborn
wrote:<br>
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<blockquote
cite="mid:CAFtQAgR42KbZa+j-JQ-yFc+741_DAosPhkm9YM2HQsr5RnGkDA@mail.gmail.com"
type="cite">
<div dir="ltr"><br>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Thu, Jun 11, 2015 at 4:49 PM,
WebDawg <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:webdawg@gmail.com" target="_blank">webdawg@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><br>
<div class="gmail_extra"><br>
<div class="gmail_quote"><span class="">On Thu,
Jun 11, 2015 at 2:41 PM, david <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:ainut@knology.net"
target="_blank">ainut@knology.net</a>></span>
wrote:<br>
</span><span class="">
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px
#ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
Software Linux raid is fine with the
striping but it sucks at mirroring. The
second (mirror) drive is NOT identical in
any shape form or fashion. Even the
partitions are different. And it is not
bootable!!! In mirroring, I want
immediate fail-over, or at most, one
shutdown, remove/replace drive, then back
up right where I was.<br>
<br>
Thanks,<br>
David<br>
</div>
</blockquote>
<div><br>
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</span>
<div>I agree. I had to go through hell with a
Debian mdadm system to install the boot loader
on both drives. I know this is a problem with
a few software raid solutions.<br>
<br>
<br>
</div>
<div>Anyone know if this has been fixed in any
OS + Filesystem/Software Raid? One of the
things that killed me was if the bootloader
was corrupted on one disk, or the disk was
partially corrupted or something, in a
software raid scenario, the bios has to know
to move to the next disk, but when does that
ever happen?<br>
<br>
</div>
<div>This was a big failing with software raid.
I am sure it could be hacked around by placing
the bootloader somewhere else...or something.<br>
<br>
</div>
</div>
</div>
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<div> </div>
</div>
Again, this isn't a problem with the software RAID, but
just how Linux works. mdadm doesn't know anything about
the MBR since it's not in a partition. Instead you
configure the bootloader to install itself on the MBR of
both drives. IIRC some installers (Debian maybe?) offered
to do this for you.</div>
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