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

[Joel Becker]

On Fri, Apr 11, 2003 at 11:12:32AM -0700, Patrick Mansfield wrote:
> I'm trying to pull the current multi-path patch up to 2.5.66 (ouch). 

	I wasn't aware of this work.  This is very interesting.  Two
questions:

1) When does it failover?  Meaning, if I I/O to a disk, but someone
yanks the fibrechannel plug.  Does your multipath wait for a SCSI
timeout to redirect the I/O?

2) If so, have you considered trapping loop up/down events to handle
such a case?  Real users of multipath tech do not want to wait 90s for
failover.

Joel

-- 

"Win95 file and print sharing are for relatively friendly nets."
        - Paul Leach, Microsoft

Joel Becker
Senior Member of Technical Staff
Oracle Corporation
E-mail: [e-mail]
Phone: [phone]