[HPADM] HP-UX connected to a EMC CX700 SAN



Help!

We have HP-UX 11i connected to a EMC CX700 SAN.

Sometimes when we reboot or replace or update the firmware on a Cisco switch in our SAN fabric it causes the drive names to change in HP-UX.

So the names are something like c20t0d0, c22t0d0, c24t0d0, c26t0d0. After the switch change they are c28t0d0, c30t0d0, c32t0d0, c34t0d0. (This is just a made up example).

We can run ioscan and insf and powermt and get good paths to the new drives and then remove the old paths and reboot and it is ok?.
Where is the problem? Where does the fix lie? How do we keep the drive names from changing?

Thanks
Tom


---------------------------------
Be a better pen pal. Text or chat with friends inside Yahoo! Mail. See how.

Relevant Pages

  • 2.6.x stability and oddity tale (Promise ATA/SATA, reiserfs/ext3, spontaneous reboots)
    ... to swap in 2 SATA drives instead of the Promise card connected ATA ... it crash and reboot again, ... 36GB SCSI drives forming a MD RAID1 locally and a SAN on the FC-AL card. ... in behavior between ext3 and reiserfs. ...
    (Linux-Kernel)
  • [HPADM] SUMMARY autonegotiate
    ... The question is can I turn this off using SAM and will the setting survive a reboot? ... communicationsàNetwork Interface Cards and look at current settings there. ... depends on the rev of HP-UX as well as the NIC cards, ...
    (HP-UX-Admin)
  • Re: HP-UX 11i v2 on Itanium
    ... > requires command line knowledge and just don't believe that HP-UX ... > stays up for months without a reboot. ... reboots for reliability" and in fact no enterprise level mission ... Greg Cagle ...
    (comp.sys.hp.hpux)
  • Re: system down - cant find luns
    ... >rebooted and the other servers connected to it are working fine. ... >One server still doesn't see the filesystem located on the SAN. ... >SCSI Device Information: ... It could also be that the reboot has found the lun but the kernel is ...
    (comp.unix.aix)
  • Re: how do i make iso image from win2k so it works in hp-ux box
    ... > to burn it), it makes the sytem hang up, and i need to reboot the system. ... On any unix (hp-ux, linux and most others): ... use the same for floppy images) ...
    (comp.sys.hp.hpux)