SMART data


B

Bob Davis

Does any software report SMART data from two SATA drives in a RAID0 array?
Is this even possible?

Mobo: Gigabyte GA-8KNXP
Drives: 36gb x 2 Raptor
Controller: On-chip ICH5R
 
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A

Arno Wagner

Previously Bob Davis said:
Does any software report SMART data from two SATA drives in a RAID0 array?
Is this even possible?
Software-RAID: trivial, any SMART software that can do SATA
should be able to do it (unless it is a really dumb design).

Hardware-raid: Only doable via the manufacturers software.
Mobo: Gigabyte GA-8KNXP
Drives: 36gb x 2 Raptor
Controller: On-chip ICH5R
Fake-raid (what you have): Under Linux the smartmontools should
do it as soon as Linux gets SATA-smart support. No idea about other
OSes.

Arno
 
F

Folkert Rienstra

Arno Wagner said:
Software-RAID: trivial,
any SMART software that can do SATA
Clueless.

should be able to do it
(unless it is a really dumb design).
Like not having the necessary driver support?
Hardware-raid: Only doable via the manufacturers software.
Must be falling under that "really dumb" class then.
Again clueless.
Fake-raid (what you have):
Clueless again.
Under Linux the smartmontools should do it as soon as Linux gets
SATA-smart support.
No idea about other OSes.
Like I said, utterly clueless.
 
F

Folkert Rienstra

Bob Davis said:
Does any software report SMART data from two SATA drives in a RAID0 array?
That would be
"Can any software report SMART data from two SATA drives in a RAID0 array?"
Is this even possible?
And the answer would be
"It is possible if the driver supports passing through S.M.A.R.T. data".
(Or has the hookup points to a driver extension that does same).
 
B

Bob Davis

Arno Wagner said:
Software-RAID: trivial, any SMART software that can do SATA
should be able to do it (unless it is a really dumb design).

Hardware-raid: Only doable via the manufacturers software.


Fake-raid (what you have): Under Linux the smartmontools should
do it as soon as Linux gets SATA-smart support. No idea about other
OSes.
I would categorize my particular type of RAID as "hardware." I'm not sure
what you mean by "fake RAID." I run XP, not Linux.
 
B

Bob Davis

Folkert Rienstra said:
That would be
"Can any software report SMART data from two SATA drives in a RAID0
array?"


And the answer would be
"It is possible if the driver supports passing through S.M.A.R.T. data".
(Or has the hookup points to a driver extension that does same).
I guess Intel hasn't gotten around to this functionality yet.
 
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A

Arno Wagner

I would categorize my particular type of RAID as "hardware." I'm not sure
what you mean by "fake RAID." I run XP, not Linux.
"fakeraid" is software RAID with hardware support. That is what you
have. True hardware RAID does all the work on the card.

See here: http://www.linuxmafia.com/faq/Hardware/sata.html#fakeraid

In a sense software-RAID is also "fakeraid". The idea is that
the OS still sees individual disks, i.e. it is not an "array"
in hardware. One other problem with fakeraid is that is usually
cannot be accessed with different OSes. That issue does not exist
with true RAID, since all management information is hidden
from the OS by the controller.

The vendors just like to call their hardware supported software
RAID "hardware RAID", since it sounds better. But essentially it
is a marketing lie.

Arno
 

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