How do Oracle ASM volumes do failover and load-balancing without PVLinks?

[StuartA46]

All:

We run HP-UX 11.23 with PVLinks.  Since Oracle ASM volumes don't use LVM or PVLinks, how do they failover and load-balance?

    Stuart

[Patrick Wallek]

Some information gleaned from a google search for "oracle asm load balancing":

http://docs.oracle.com/cd/B28359_01/server.111/b31107/asmcon.htm

http://noriegaaoracleexpert.blogspot.com/2010/06/asm-load-balancing-anthony-d.html

http://www.google.com/url?sa=t&rct=j&q=oracle%20asm%20load%20balancing&source=web&cd=6&ved=0CGUQFjAF&url=http%3A%2F%2Fwww.ioug.org%2FPortals%2F0%2FOOW%2FOracle%2520ASM%2520Load%2520Balancing_Anthony%2520Noriega.ppt&ei=wfOiT6m6IKeZ2QW2rvDgCA&usg=AFQjCNED1Ijf-lB7LhP65UnH1UmjaZqwkA&cad=rja

[Gordon Crone]

Our 11.23 servers used HP's autopath/securepath for multipathing/failover of oracle ASM disks. In 11.31 the multipath functionality is built into the hpux mass storage stack, and works for the ASM disks. 

[StuartA46]

What is 11.23 "autopath/securepath"?  I've never heard of it (I'm a Storage guy)?

  Stuart

[Torsten.]

"autopath/securepath" was the multipath solution for hp-ux 11.11 and 11.23.

With this software it was also possible to use active/passive disk arrays with hp-ux.

[Gordon Crone]

As Torsten stated. It is/was a sperately licensed product from HP. For their active-active arrays (eg XP storage), it was called autopath. For their active-passive arrays (earlier EVAs??) it was called securepath. Other storage vendors, such as EMC had a similar product for their arrays.

[StuartA46]

Gordon:

Can I use "autopath/securepath" with HP 3PAR Storage?  Will it coexist with EMC PowerPath on same server?

    Stuart