On Sat, 3 Jan 2009, Mark Lord wrote:
Justin Piszcz wrote:
On Fri, 2 Jan 2009, Mark Lord wrote:
Justin Piszcz wrote:
On Fri, 2 Jan 2009, Mark Lord wrote:
I suppose, of all of the vendors, Adaptec probably has the best chance
of getting that part right, and probably without randomly writing
metadata
somewhere on the drive simply for JBOD.
Anyone know for sure ?
Cheers
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The Star Tech seems to work right, you plug in the disks and they're
recognized as regular sata disks, as if on your on-board controller. No
special modifications required.
..
Inconclusive. The Highpoint cards behave like that, too,
except they silently corrupt a sector (or more) on the drive
at every boot, whether or not one ever "configures" the drive
through the built-in RAID/JBOD BIOS.
..
Well.. what do *you* think the answer is?
Unless you've zeroed the entire drive beforehand,
and then inserted it into a given controller,
and then scanned for non-zero sectors.. how can you tell?
That's what we ended up having to do with the Highpoint ones,
and the result was rather shocking at the time.
Cheers
One would think if the controller overwrites bits on the device when
mdadm assembles the raid device it would kick it out of the array for
being unclean or find a lot of mismatches on the array or is that the
wrong idea?
Justin.
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