dmp_fast_recovery is a mechanism by which we bypass the sd/scsi stack and send
path inquiry/status CDBs directly from the HBA in order to bypass long SCSI
queues and recover paths faster. With a TPD (third-party driver) such as MPxIO,
bypassing the stack means we bypass the TPD completely, and
Striping across Enterprise LUNs allows you to use more SCSI queues/transaction,
and follow the template of setting the number of read/write threads to the
number of stripe cols, and have it work efficiently, amongst other arguments
for the config.
Not everyone needs this configuration, but
So, assume your queue depth is 10, and you need a 1TB volume. You can
present a 1TB LUN, and your whole SCSI queue for that volume is 10. If
you present 2 500GB LUNs, your combined SCSI queue is 20 - one SCSI
mailbox per LUN. If you present 10 100GB LUNs, you get a combined queue
of 100. If
Using vxdmpadm disable ctlr=cX to disable one path administratively
(or other individual disable syntax as-needed) is the best-practice for
doing SAN work.
Iopolicy can be set on the fly -- are you sure you have the correct
ASL/APM packages for NetAPP storage for your version? Having the
From an internal technote, so no link, sorry:
Background:
The Serial Split Brain condition arises because VERITAS Volume Manager
(tm) increments the serial ID in the disk media record of each imported
disk in all the disk group configurations on those disks. A new serial
(SSB) ID has been
5.0MP1 has not been released for x64 Solaris.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Thomas
Glanzmann
Sent: Tuesday, July 08, 2008 9:52 AM
To: veritas-vx@mailman.eng.auburn.edu
Subject: [Veritas-vx] Solaris 10 x86 Storage Foundation MP1
Hello,
RPs are cumulative, so only installing the latest RP would cut down some
time, but not a lot.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Scott
Kaiser
Sent: Tuesday, July 08, 2008 2:59 PM
To: Chuck Sedlacko; veritas-vx@mailman.eng.auburn.edu
Subject:
?
On Fri, Feb 22, 2008 at 03:13:36PM -0700, Joshua Fielden wrote:
You can mount snapshots r/w.
Does that require a particular version?
$ mount -F vxfs -o rw,snapof=/mnt /dev/vx/dsk/testdg/test2 /mnt2 vxfs
mount: conflicting suboptions: ro and rw.
vxfs mount: Usage:
[blah...]
$ mount -F vxfs -o snapof
Also, for the future:
usedisk Profile Keyword
usedisk disk_name ...
By default, the JumpStart program uses all of the operational disks on
the system when you specify partitioning default. The usedisk profile
keyword designates one or more disks that you want the JumpStart program
to use. You
Are they less than 21MB in size?
-Original Message-
From: Zhisong Jason Jin [mailto:[EMAIL PROTECTED]
Sent: Tuesday, July 31, 2007 07:44 AM US Mountain Standard Time
To: [EMAIL PROTECTED]; veritas-vx
Subject:Re: [Veritas-ha] problem setting up I/O fencing
Hi, gurus:
I'm
the LUNs to 21MB.
jf
--
All above statements are my own, and come with no endorsement or warranty, etc.
-Original Message-
From: Ceri Davies [mailto:[EMAIL PROTECTED]
Sent: Tuesday, July 31, 2007 11:22 AM US Mountain Standard Time
To: Joshua Fielden
Cc: Zhisong Jason Jin; [EMAIL
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