re: RAID6 - I was in the unfortunate position of having an old RAID6 setup
recently, a disk had gone bad. Total rebuild
Sorry James. I have just been too busy to go read through the forums. The
current interface is klunky, as you know, so it takes too long to follow
threads to see if there's something I can add to a discussion, so I do it
only infrequently. I also relied on the email gateway, so I have taken
charge of the work to get new forum software going. Now on to your
Run, run as fast as you can! RAID60 is the absolutely STUPIDEST
contraption
Let's take a bunch of RAID6 arrays that are only marginally better than
RAID5 in one of the several ways that RAID5 is at risk and is even slower
to write to. Next how about lets stripe that bunch of RAID6 arrays
together
with not additional redundancy so that if we do lose two drives in one of
the RAID6s or the data becomes corrupted by creeping disk damage we will
have three or four times as much data at risk!
RAID10 all the way! The additional cost is relatively small and your data
will be 95% safer, recovery will take 80% less time if you do lose a
single
drive. Performance during recovery will be 80% faster and your data during
recovery at least 80% safer.
BTW, feel free to send me questions directly. I will let you know if you
cross a line. B^)
Art
Art S. Kagel, President and Principal Consultant
ASK Database Management
www.askdbmgt.com
Blog: http://informix-myview.blogspot.com/
Disclaimer: Please keep in mind that my own opinions are my own opinions
and do not reflect on the IIUG, nor any other organization with which I am
associated either explicitly, implicitly, or by inference. Neither do
those opinions reflect those of other individuals affiliated with any
entity with which I am affiliated nor those of the entities themselves.
Iâve definitely been missing the forums. I had posted something using
the
web interface about a week ago and really hoping that you would answer.
Since email hasnât been working, there is definitely a lot less
activity on
the forums.
I am working with my network team to replace some 5+ year old hardware
for
my Informix/Webserver environment. We are running IDS 12.10 on SLES 11
in a
virtual (VMWare) environment. Our dbspace is approximately 250GB and
accessed pretty heavily from a cluster of load balanced Apache servers.
I
know that RAID5 isn't recommended (
https://www.askdbmgt.com/why-raid5-should-be-avoided-at-all-costs.html),
but my networking team and hardware vendor (Tegile) is recommending
RAID60.
I am hesitant to use any RAID level that utilizes parity, but this is
way
beyond my area of expertise, and I'm curious to hear recommendations
from
the community.
I know. As you know we have had some problems with our email providers
and
the effort to build a new forum site has been hampered because the
original
forums were a custom build and the programmer who wrote it has retired
to
Malaysia or somewhere like that and can't be reached so we are
struggling
to extract the forum history in a for that we can load it into a new
standard system.
FYI, someone has started two new Whatsapp groups for Informix users. One
for DBAs and the other for 4GL issues. Let me know if you would like me
to
have you added to either or both groups if you haven't found them yet.
Art
Test message. I haven't seen anything from the email list since May.
--EEM
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