We are having IBM LTO Ultrium II FC drives with single FC port. In DDS(LAN 
Free) environment, if a tape drive shared between among multiple storagenodes. 
So when we replace a new tape drive it is very difficult to configure that one 
if dWWN is not enabled. 


Thanks,
Rag

-------------- Original message -------------- 

> STK-9840s have dual FC ports. 
> I've used it for high-availability purposes by connecting each drive to 
> two different fabrics. 
> 
> I have no idea why you would want to use the dynamic wwn feature. 
> 
> -----Original Message----- 
> From: Legato NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT 
> EDU] 
> On Behalf Of Raghava Karu 
> Sent: Thursday, September 29, 2005 9:36 AM 
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU 
> Subject: Re: [Networker] Dynamic WWNs for FC tape drives 
> 
> Yes, we were told by Storagetek Engineers on L700e it is possible, if 
> library IPL'd. What IPL mean ? When dWWN was enabled on library, we are 
> seeing two wwns for each drive in library front panel. But don't know 
> which wwn will be recognised by SAN switch? 
> 
> Thanks 
> Rag 
> 
> -------------- Original message -------------- 
> 
> > Is this possible on the L700? Our drives go right to the switch. Can 
> > the library override/rewrite the WWN of a drive? 
> > 
> > Robert Maiello 
> > Pioneer Data Systems 
> > 
> > On Fri, 23 Sep 2005 15:58:18 +0000, Raghava Karu wrote: 
> > 
> > >Hi, 
> > >We want to enable the dynamic WWN feature on L700 and for LTO II FC 
> drives. 
> > How do I enable it on L700 and what are the configurations needs to be 
> 
> > made on backup server, storagenodes. 
> > > 
> > >Each drive should be shared by backup server, and 4 storagenodes in 
> > >SAN 
> > environment. Please also share me if you are noticing any issues with 
> > dWWN feature. 
> > > 
> > >Thanks in advance, 
> > >Raghava 
> > > 
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