vinum and hot-swapping
Greg 'groggy' Lehey
grog at FreeBSD.org
Sun Jul 13 19:19:19 PDT 2003
On Sunday, 13 July 2003 at 20:57:46 -0500, Marc Wiz wrote:
> On Mon, Jul 14, 2003 at 10:02:58AM +0930, Greg 'groggy' Lehey wrote:
>>> I don't believe vinum can optimize full-stripe writes, though, since
>>> FreeBSD can only do I/O in 64k max chunks,
>> 128 kB.
> I thought physio was limited to 64 KB? The man page on dump states
> this. Please correct me if I am wrong.
Physio is limited to MAXPHYS, which you'll find defined in
#define MAXPHYS (128 * 1024) /* max raw I/O transfer size */
I've taken a look at the dump code (yuk!), and it no longer places any
limitation on the block size. I'll fix the man page.
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