Re: [patch for playing] Patch to support 4000 disks and maintain

Joel Becker
2003-04-11T17:46:15Z

On Fri, Apr 11, 2003 at 08:28:32AM -0800, Badari Pulavarty wrote:
> Well !! My patch does not have anything hardcoded to 4000.
> Depends on how many minor bits. But we have to put a hardlimit
> somewhere ..

Yes, but that hardlimit has to expect the number to be Very
Large in the very near future. 16K disks on a big compute farm is not
too far off.

> Fortunately, the multipath solution Mike Anderson & Patrick Mansfield
> working on, colapses all the disks you see thro multiple paths into
> number of realdisks (4000). So you don't really need extra devices
> to support multipathing.

Yes, but what if I want to see the multiple paths? Does their
solution allow you to specify the path behind the 'realdisk'? Does it
allow querying of the paths?

Joel

--

Life's Little Instruction Book #451

"Don't be afraid to say, 'I'm sorry.'"

Joel Becker
Senior Member of Technical Staff
Oracle Corporation
E-mail: joel.becker@oracle.com
Phone: (650) 506-8127