Mailing List Archive: Netapp: toasters

FC/AL connection to tape library.

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arden at nortelnetworks

Jul 1, 2002, 3:18 AM

Post #1 of 3 (788 views)
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FC/AL connection to tape library.

Is anyone using FC/AL to connect filers to tape libraries?

I am using Fibre Channel Arbitrated Loop (ie no switch) to connect my
filer running 6.2R2 to an ATL P3000 tape library.

When I first did this the filer could not see the tape drives until it
was rebooted (although it could see the FC bridge in the library a soon
as it was plugged in).

I just had to power cycle the library. Now the filer can't see the tape
drives ("sysconfig -t" or "storage show tape" say "No tapes found.") but
it can see the FC bridge.

Is anyone else seeing this? Is there any workaround, apart from buying
a switch or rebooting the filer every time the library is power cycled?

- Bruce

--
Bruce Arden arden [at] nortelnetworks barden2 [at] csc
CSC, Nortel, London Rd, Harlow, England +44 1279 40 2877

arden at nortelnetworks

Jul 1, 2002, 4:14 AM

Post #2 of 3 (755 views)
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Re: FC/AL connection to tape library. [In reply to]

Thanks Pramod,

The online/offline worked fine.

I hadn't tried this before because it didn't appear to work when I first
installed the library.

- Bruce

--
Bruce Arden arden [at] nortelnetworks barden2 [at] csc
CSC, Nortel, London Rd, Harlow, England +44 1279 40 2877

Pramod wrote:

> Hi,
> Have you tried offline and online if the Tape HBA.
>
> go the advanced mode - priv set advanced
>
> *> fcadmin offline <Tape adapter> ex: fcadmin offline 1a
> *> fcadmin online <Tape Adapter>
>
> Do this everytime you restart your library or ur bridge. This should work.
>
> Thanks
> Pramod
>
> ----- Original Message -----
> From: "Bruce Arden" <arden [at] nortelnetworks>
> To: "toasters" <toasters [at] mathworks>
> Sent: Monday, July 01, 2002 3:48 PM
> Subject: FC/AL connection to tape library.
>
> > Is anyone using FC/AL to connect filers to tape libraries?
> >
> > I am using Fibre Channel Arbitrated Loop (ie no switch) to connect my
> > filer running 6.2R2 to an ATL P3000 tape library.
> >
> > When I first did this the filer could not see the tape drives until it
> > was rebooted (although it could see the FC bridge in the library a soon
> > as it was plugged in).
> >
> > I just had to power cycle the library. Now the filer can't see the tape
> > drives ("sysconfig -t" or "storage show tape" say "No tapes found.") but
> > it can see the FC bridge.
> >
> > Is anyone else seeing this? Is there any workaround, apart from buying
> > a switch or rebooting the filer every time the library is power cycled?
> >
> > - Bruce
> >
> > --
> > Bruce Arden arden [at] nortelnetworks barden2 [at] csc
> > CSC, Nortel, London Rd, Harlow, England +44 1279 40 2877
> >
> >
> >

marcus.smiley at ericsson

Jul 1, 2002, 7:32 AM

Post #3 of 3 (760 views)
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Re: FC/AL connection to tape library. [In reply to]

You should run sysconfig and make sure of which slot the FC card that
is attached to the library is in.

Then, go into advanced user mode: rc_toggle_basic
and use the fcadmin tool to refresh the card.

For example, if the card is in slot 4, you
could do the following:

stimpy>rc_toggle_basic
stimpy*>fcadmin online 4

This would re-init the card and look for devices attached to it again.
You can do this without rebooting the filer or interrupting service
to clients as long as the only thing plugged into the card is the
connection to the tape drive.

Hope this helps!

-Marc

On Mon, 01 Jul 2002, Bruce Arden wrote:

| Is anyone using FC/AL to connect filers to tape libraries?
|
| I am using Fibre Channel Arbitrated Loop (ie no switch) to connect my
| filer running 6.2R2 to an ATL P3000 tape library.
|
| When I first did this the filer could not see the tape drives until it
| was rebooted (although it could see the FC bridge in the library a soon
| as it was plugged in).
|
| I just had to power cycle the library. Now the filer can't see the tape
| drives ("sysconfig -t" or "storage show tape" say "No tapes found.") but
| it can see the FC bridge.
|
| Is anyone else seeing this? Is there any workaround, apart from buying
| a switch or rebooting the filer every time the library is power cycled?
|
| - Bruce
|
| --
| Bruce Arden arden [at] nortelnetworks barden2 [at] csc
| CSC, Nortel, London Rd, Harlow, England +44 1279 40 2877
|
|
|

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