Joni, Later versions of the Atape driver support dual pathing and failover. Once set up, AIX defines two RMTn drives for each physical drive, one with a device path ending in -PRI and the other in -ALT.
As I understand it rudimentary load balancing is done - when the tape is opened, the least busy path is used. Failover is also neat. I was running the tapeutil test command and deliberately varied off the adapter in use. The io just picked up where it left off on the other path. See the Totalstorage Tape Installation and Users Guide, available from ftp://service.boulder.ibm.com for details Steve Harris AIX and TSM Admin Queensland Health, Brisbane Australia >>> [EMAIL PROTECTED] 18/11/2003 7:13:13 >>> IBM 3590 and 3592 drives have 2 fibre interfaces. I am unsure how to manage the multipathing yet, but we are going to look at configuring our 3590H drives that way next year to eliminate that single point of failure. Our TSM server is running AIX 5.2ML2 which is connected to a 3494 library with 4 3590H drives which are connected to a Brocade 2800. Julian Armendariz System Engineer - UNIX H.B. Fuller (651) 236-4043 >>> [EMAIL PROTECTED] 11/17/03 12:48PM >>> Hi everyone! We are in the process of formulating an AIX environment instead of our current MVS TSM environment. We would have 2 TSM servers (one being the library manager) with 2 directors, 8 lan-free clients and 24 tape drives, which we hope to share between the 2 TSM servers. We would like to have 2 fibre interfaces per drive in order to eliminate a single point of failure. My question is, how does TSM know which path it is using to the drive and how does it know that one of the paths to an individual drive is already in use? Is there software out there to manage this or is it done through the hardware configuration? If anyone has any suggestions I would appreciate it! Thanks! *************************************************************** Joni Moyer Highmark Storage Systems Work:(717)302-6603 **New as of 11/1/03 Fax:(717)302-5974 [EMAIL PROTECTED] *************************************************************** *********************************************************************************** This email, including any attachments sent with it, is confidential and for the sole use of the intended recipients(s). This confidentiality is not waived or lost, if you receive it and you are not the intended recipient(s), or if it is transmitted/received in error. Any unauthorised use, alteration, disclosure, distribution or review of this email is prohibited. It may be subject to a statutory duty of confidentiality if it relates to health service matters. If you are not the intended recipients(s), or if you have received this e-mail in error, you are asked to immediately notify the sender by telephone or by return e-mail. You should also delete this e-mail message and destroy any hard copies produced. ***********************************************************************************
