3590s and AIX (with the appropriate level of Atape) support multi-path I/O. If I remember right, multi-path I/O is not turned on by default. Turn it on and let AIX worry about fail-over of paths and performance.
Orville L. Lantto Datatrend Technologies, Inc. (http://www.datatrend.com) IBM Premier Business Partner 121 Cheshire Lane, Suite 700 Minnetonka, MN 55305 Email: [EMAIL PROTECTED] CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. rh <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> 04/08/2004 08:46 AM Please respond to "ADSM: Dist Stor Manager" To: [EMAIL PROTECTED] cc: Subject: 3590 Switched Fiber Hi ITSM'rs, I have a new fiber attached 3590 implementation that I would like advice on. I'm not a SAN architect nor an AIX admin (two strikes?)so I'd like the opinion of anyone that has a similiar infrastructure in place. I will have 16 3590-E1A drives attached to two McData switches using each of the fiber connectors in each drive. Each of the McData switches are connected to a seperate Connectrix director. From the AIX TSM host I have 3 HBA's going to each of the Connectrix boxes (total of six). I'd like to configure for availability and performance. I'd like to exploit failover capabilities along with any kind of load balancing I may be able to obtain. My dilema is how to configure the drives to AIX. Would it be best to group drives and distribute them across the HBA's defining a single primary and redundant path. Or would it be best to pool all the HBA's and define primary and alternate paths to each of the drives on each HBA (16x6 devices)? I'd appreciate any input from anyone that has a similiar configuration in place or can lead me to any information that will assist me. Many thanks, Rodney Hroblak ADP __________________________________ Do you Yahoo!? Yahoo! Small Business $15K Web Design Giveaway http://promotions.yahoo.com/design_giveaway/
