On 10 Jun 2008 , Erik Trulsson entreated about
Re: xRAID disks:
I suspect the raidinfo is stored on the disk somewhere and a suitable
'dd' command can erase it. but where and how?
That kind of information is usually stored last on the disk (where it is
least likely
On 10 Jun 2008 , Erik Trulsson entreated about
Re: xRAID disks:
On Tue, Jun 10, 2008 at 04:56:07PM +0200, Wojciech Puchar wrote:
The pair of ex-RAID disks are ad1 and ad2 and obviously are no longer
a raid pair, yet 'something' is telling the ar() driver to try and
pair them
On 12 Jun 2008 , DA Forsyth entreated about
Re: xRAID disks:
hmmm, thinking now the gmirror create/remove route will probably
work. let me try it on a blankish disk and see
this appears to be the answer to the question:
how to stop ar recognizing a disk that used to be on a raid
Hiya
I've had this for a while now and have done many searches for info
but have not yet come up with the right question, hence have not got
the answer.
My main server has an Adaptec IDE raid card. A couple of years ago I
took disks that had been a mirror pair on that card out of the server
The pair of ex-RAID disks are ad1 and ad2 and obviously are no longer
a raid pair, yet 'something' is telling the ar() driver to try and
pair them and failing because there is no raid hardware in that box.
there are no raid hardware on most devices. it's just marketing hype.
actually there is
On Tue, Jun 10, 2008 at 04:33:47PM +0200, DA Forsyth wrote:
Hiya
I've had this for a while now and have done many searches for info
but have not yet come up with the right question, hence have not got
the answer.
My main server has an Adaptec IDE raid card. A couple of years ago I
On Tue, Jun 10, 2008 at 04:56:07PM +0200, Wojciech Puchar wrote:
The pair of ex-RAID disks are ad1 and ad2 and obviously are no longer
a raid pair, yet 'something' is telling the ar() driver to try and
pair them and failing because there is no raid hardware in that box.
there are no
Erik Trulsson wrote:
On Tue, Jun 10, 2008 at 04:33:47PM +0200, DA Forsyth wrote:
Hiya
I've had this for a while now and have done many searches for info
but have not yet come up with the right question, hence have not got
the answer.
My main server has an Adaptec IDE raid card. A
x hardware support.
actually there is not much need to have it for RAID-0/1/10 where there is
almostnothing to process.
For mirrors it can actually be a big win with hardware support.
If you use software RAID then you will have to perform each write twice
(once to each disk),
in parallel
I recently removed one pair of disks from a windows hardware :) RAID
controller, and upon inserting it into a newly built FreeBSD system, it was
immediately detected by the ar driver, and messages started coming in, like
is there actually any difference in ar and gmirror/gstripe except that
Wojciech Puchar wrote:
I recently removed one pair of disks from a windows hardware :)
RAID controller, and upon inserting it into a newly built FreeBSD
system, it was immediately detected by the ar driver, and messages
started coming in, like
is there actually any difference in ar and
Erik Trulsson wrote:
On Tue, Jun 10, 2008 at 04:33:47PM +0200, DA Forsyth wrote:
Hiya
I've had this for a while now and have done many searches for info
but have not yet come up with the right question, hence have not got
the answer.
My main server has an Adaptec IDE raid card. A couple
On Tue, Jun 10, 2008 at 05:13:31PM +0200, Wojciech Puchar wrote:
x hardware support.
actually there is not much need to have it for RAID-0/1/10 where there is
almostnothing to process.
For mirrors it can actually be a big win with hardware support.
If you use software RAID then you
You do not normally have that much bandwidth even in a modern machine.
Typical bandwidth for the northbridge/southbridge connection is 1-2 GB/s
for most machines sold today. (For example just about all machines with
a recent Intel desktop chipset. The connection between north- and south-bridge
on
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