AIX multipath driver

[Nienhuis, Aaron]

EMC has a product called PowerPath that does load balancing and path
failover.  However, it is proprietary to their storage solutions and not
cheap.  Depending on your budget, check out their web page at www.emc.com.

Aaron

-----Original Message-----
From: Rich Ramos [mailto:ramos@chi.mti.com]
Sent: Tuesday, April 04, 2000 12:59 AM
To: linux-ha@muc.de
Subject: AIX multipath driver





I know that this is slightly off topic, but I'm wondering if anyone knows of
any company that makes a driver similar to Veritas' DMP driver for AIX?  It
could be open sourced or proprietary.

If your not familiar with DMP, it allows a system with multiple host bus
adapters talk to storage with multiple ports. It allows load balancing
across the HBAs  when the HBAs are both active.  Then  if there is a path
failure, the driver is able to reroute I/Os through the second HBA.

I looked through the archives and saw references to "REACT" and "ATF", does
anyone know if they still exist?  Are there any others? I would be
interested in drivers that use the second HBA as just a redundant path
(ie. no load balancing) as well.

Any info would be appreciated.

-Rich

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