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On 09/18/2012 04:37 PM, Arnold Krille wrote:<br>
<span style="white-space: pre;">> Hi,<br>
><br>
> On Tuesday 18 September 2012 10:05:31 Alan Robertson wrote:<br>
>> There was another note mentioning backups...<br>
>> DRBD is designed to protect against server and disk
failures. Backups<br>
>> primarily protect against human errors, disasters and so
on - and I do<br>
>> have backups...<br>
><br>
> You called your drbd-setup a backup. Its not a backup and you
know it. Fine.</span><br>
I have a separate 3T ESATA removable hard drive I use for backups.
I can see it from where I sit. But you apparently know better than
I do what I have in my house. Quite a remarkable feat from many
thousands of miles away.<br>
<br>
Why do you presume I'm such an idiot?<br>
<br>
I know how to recover from backups. I probably did my first
recovery from backups before you started elementary school. I've
designed, written, deployed and managed fully automated backup
systems - written disk drivers, SCSI chip drivers, tape drivers,
tape jukebox drivers, file systems, btrees. I've never written disk
firmware, but I've written code at every level above that. Yeah, I
think I know about backups.<br>
<br>
I can avoid recovering from backups, since I don't have any data I
care about in the bad blocks. But I do back up a few times a day at
this point in time ;-) and I'll back up one more time just before I
shut down to replace the drive (with the replacement that arrived
today). The fault tolerant dd ideas are more interesting than a
simple restore, since they preserve the bit maps, and inode numbers,
are compatible with the other mirror copy and so on...<br>
<br>
I addressed the list so I could learn what DRBD is supposed to do in
these circumstances, to see if I had some settings wrong, and also
suggest what it /could/ do. A couple of DRBD features came from my
suggestions in the past (as Phillip or Lars could tell you). Not
all my ideas are equally good, but sometimes they work out.<br>
<br>
-- <br>
Alan Robertson <a class="moz-txt-link-rfc2396E" href="mailto:alanr@unix.sh"><alanr@unix.sh></a> - @OSSAlanR<br>
<br>
"Openness is the foundation and preservative of friendship... Let
me claim from you at all times your undisguised opinions." - William
Wilberforce<br>
<br>
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