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Stephen Bosch wrote:
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<pre wrap="">Patrick May wrote:
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<pre wrap="">On Wed, Mar 14, 2007 at 10:05:20PM -0400, Matt wrote:
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<pre wrap="">Yikes.. you'd think a server would be running RAID.
At any rate.. Please feel free to visit <a class="moz-txt-link-freetext" href="http://www.voip-wiki.us">http://www.voip-wiki.us</a>
I have set this up to be able to hold information for the Asterisk
community. I will also gladly allow others to mirror it.
It is sitting in a climate controlled data center in Central PA on a server
with RAID. Additionally, it is at the end of 95Megabytes/second on a BGP
redundant connection.
Please feel free to use it, if the community feels it can be useful...
additionally, I would love to setup some rsync mirrors with others so that
we can have redundant backups of this very valuable information.
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<pre wrap="">The previous message to the list was they lost 3 of 4 drives in the array.
I'm not sure of any RAID that can sustain 75% hardware loss and still function.
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<pre wrap=""><!---->
As somebody else has already pointed out -- "There must be more to it."
Let's say three of four drives failed -- the odds of them failing at the
same time are vanishingly slim; but if you're not paying attention, and
you operate with a degraded volume, well... then you get what you deserve.
RAID or no RAID, the site should have one or more mirrors.
-Stephen-
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The odds of multiple drive failure are a lot higher than you think.
Failing power supplies or power spikes are common to all drives and
controller failure on a drive can throw noise back onto the SCSI bus
causing corruption on other drives. Although the other affected drives
are not physically damaged, your data has evaporated none the less.<br>
<br>
We have already had one multi-drive RAID failure on our main file
server (only one drive was physically failed) and a single drive and
power supply failure on our Asterisk box. RAID 1 and redundant power
supplies saved the day. <br>
<br>
Spring and Fall are the special Hardware Failure Seasons! Seems to
affect power supplies, hard drives and light bulbs in particular.<br>
<br>
regards,<br>
<br>
Drew<br>
<br>
<pre class="moz-signature" cols="72">--
Drew Gibson
Systems Administrator
OANDA Corporation
<a class="moz-txt-link-abbreviated" href="http://www.oanda.com">www.oanda.com</a>
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