If you go to www.adsm.org and click on "Mailing List Archives" in the
"Navigation" box on the left side - then search for *udevinfo*
(*udevadm*for RH6 - our "tape owning servers" are still RH5 until next
year when we
replace them), you will see a similar discussion with details.
On Fri, May 23, 2014 at 2:51 PM, Lee, Gary <GLEE AT bsu DOT edu> wrote:
> Ok, unloading multipath.
> How do I deal with the issue of multiple paths to each drive?
> I have four fc ports all connected to the san.
>
> Sorry to appear dense, just not familiar with fiberchanel.
>
>
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf
> Of
> Cameron Hanover
> Sent: Friday, May 23, 2014 2:24 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: [ADSM-L] multipathing ts1120s under RHEL6
>
> To expand on it slightly, add this option for modprobe once lin_tape is
> isntalled:
> options lin_tape alternate_pathing=1
>
>
> http://publib.boulder.ibm.com/infocenter/tsminfo/v6/index.jsp?topic=%2Fcom.ibm.itsm.srv.doc%2Fc_multipath_io_support_unix.html
>
> -
> Cameron Hanover
> chanover AT umich DOT edu
>
> When any government, or church for that matter, undertakes to say to its
> subjects, this you may not read, this you must not see, this you are
> forbidden to know, the end result is tyranny and oppression, no matter how
> holy the motive.
> --Robert A. Heinlein
>
> On May 23, 2014, at 1:39 PM, Michael Prix <mp AT RS6000.DARKTECH DOT ORG>
> wrote:
>
> > Gary,
> >
> > dm-multipath is for diskdrives. You want to use lin_tape for the
> > handling of the FC-attachment of the tape drives.
> >
> > --
> > Mit freundlichen Grüßen / Kind regards
> >
> > Michael Prix
> >
> > On 05/22/2014 09:14 PM, Lee, Gary wrote:
> >> I am now attempting to share libraries containing IBM ts1120 drives
> between two tsm servers on HP hardware running RHEL 6.
> >>
> >> It appears that I will need to use the dm-multipath system to manage
> the various fc paths to all the drives.
> >>
> >> Got dm-multipath installed, but now trying to configure so it will see
> the drives.
> >> Has anyone done this before and could you point me to some information?
> >> I have the redhat manual for configuring dm-multipath. I am fairly new
> to FC so some help is appreciated.
> >> The redhat book does not even mention tape, and can't find info on my
> drives in the places it mentions to look.
> >>
> >> Thanks for any and all help.
>
--
*Zoltan Forray*
TSM Software & Hardware Administrator
BigBro / Hobbit / Xymon Administrator
Virginia Commonwealth University
UCC/Office of Technology Services
zforray AT vcu DOT edu - 804-828-4807
Don't be a phishing victim - VCU and other reputable organizations will
never use email to request that you reply with your password, social
security number or confidential personal information. For more details
visit http://infosecurity.vcu.edu/phishing.html
|
