From: Joel Becker <Joel.Becker@oracle.com>
To: Patrick Mansfield <patmans@us.ibm.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>,
Giuliano Pochini <pochini@shiny.it>,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
Mike Anderson <andmike@us.ibm.com>
Subject: Re: [patch for playing] Patch to support 4000 disks and maintain
Date: Fri, 11 Apr 2003 11:35:43 -0700 [thread overview]
Message-ID: <20030411183543.GA31739@ca-server1.us.oracle.com> (raw)
In-Reply-To: <20030411111232.A7756@beaverton.ibm.com>
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: joel.becker@oracle.com
Phone: (650) 506-8127
next prev parent reply other threads:[~2003-04-11 19:06 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-10 20:39 [patch for playing] Patch to support 4000 disks and maintain backward compatibility Badari Pulavarty
2003-04-10 20:54 ` Randy.Dunlap
2003-04-11 0:08 ` Roman Zippel
2003-04-11 1:25 ` Badari Pulavarty
2003-04-11 15:43 ` Joel Becker
2003-04-11 8:04 ` [patch for playing] Patch to support 4000 disks and maintain Giuliano Pochini
2003-04-11 15:44 ` Joel Becker
2003-04-11 16:28 ` Badari Pulavarty
2003-04-11 17:57 ` Joel Becker
2003-04-11 18:12 ` Patrick Mansfield
2003-04-11 18:35 ` Joel Becker [this message]
2003-04-11 20:04 ` Patrick Mansfield
2003-04-11 23:18 ` Joel Becker
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