[dm-devel] RE: [libmultipath] Add cciss support

[Miller, Mike (OS Dev)]

> -----Original Message-----
> From: Hannes Reinecke [mailto:hare at suse.de] 
> Sent: Monday, July 16, 2007 6:17 AM
> To: christophe varoqui
> Cc: Steve Reilly; Miller, Mike (OS Dev); Ahmad Sadeghpour; 
> device-mapper development
> Subject: [libmultipath] Add cciss support
> 
> Hi Christophe,
> 
> HP asked me to implement cciss support for multipathing.
> Apparently their newer HBAs are multipathing capable.
> However, I have no idea about the failover method they're

Dinesh, have one of your guys get back to Hannes about what they've done in DM.
 
> using; so I used multibus as a default.
> Maybe someone from HP can comment on this.
> 
> There were several patches floating around which tried to 
> achieve the same but given that they're trying to access 
> /sys/block/cciss!cXdY/device (which doesn't exist for cciss) 

Hannes,
This does exist. See sles10 sp1. I still owe upstream some updates.

> I doubt they'll do anything sensible.

Thanks for your obvious high level of confidence.

mikem

> 
> Please commit.
> 
> Cheers,
> 
> Hannes
> -- 
> Dr. Hannes Reinecke		      zSeries & Storage
> hare at suse.de			      +49 911 74053 688
> SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
> GF: Markus Rex, HRB 16746 (AG Nürnberg)
>