this gets back to the fakeraid 'on board' raid cards I think.
We are all agreeing that they are worse than useless (because they mislead
people into thinking they are safer than they are)
performance and safety do not always go hand in hand. there have been a fair
number of poorly peforming RAID cards that were safe. And software raid can
perform well, but is not as safe.
David Lang
On Sun, 17 Nov 2013, Atom Powers wrote:
Let me clarify:
In my experience software RAID is more stable than /on board/ hardware
RAID. An expensive RAID controller with batter backup will, of course,
give you better performance and reliability than software RAID.
On-board controllers like you find in consumer desktops and even many
server boards are pretty much all low quality. If you find a server
board with good on-board RAID great, and you are probably spending as
much for it as you would for a dedicated card.
On Sun, Nov 17, 2013 at 9:42 PM, Derek Balling <dr...@megacity.org> wrote:
Wait, I missed the e-mail with Atom's assertion:
SOFTWARE RAID? ... more stable than HARDWARE RAID?
That has never been my experience at all. Maybe that's true in the white-box
world, but my experience with HP RAID controllers has me head-over-heels in
love with them, especially with the enhancements to the controllers and
drives for the Gen8 hardware.
D
On Nov 18, 2013, at 12:37 AM, David Lang <da...@lang.hm> wrote:
The problem with software RAID is that if you loose power in the middle of a
write, you may end up with some drives updated and others not.
With battery-backed hardware RAID. the controller knows this and finishes
the write when power returns (assuming the battery doesn't die first)
David Lang
On Sun, 17 Nov 2013, Atom Powers wrote:
Software RAID is always, in my experience, more stable than onboard "RAID"
especially if you only have one OS.
On Nov 17, 2013 12:59 PM, "john boris" <jbori...@gmail.com> wrote:
Robert,
Yes I understand that. I am trying to keep the cost down and if the
Motherboard I get has a good onboard controller than it will save me some
$$$$
On Sun, Nov 17, 2013 at 3:57 PM, Robert Hajime Lanning <lann...@lanning.cc
wrote:
On 11/17/13 11:52, john boris wrote:
up. I can live with an onboard Raid controller as I plan to use 2 drives
mirrored.
The bane of "on-board RAID". Make sure the on-board RAID solution is not
of the "fakeraid" variety. The "fakeraid" only exists for dual boot
compatibility with "other" operating systems. When a "fakeraid" device goes
into a failure mode (degraded RAID set), it stops. You need to boot
windows to rebuild the RAID set. The "fakeraid" is a BIOS boot supported
software RAID.
--
Mr. Flibble
King of the Potato People
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