I had to reinstall DSS, because we had done some test with CentOs.
I have now reinstalled DSS:
created a vg - w/o any problems (sorry, we had never a problem w/ vg; my mistake, it was always a poblem w/ the next step)
crated a lv, and the problems started
~10 min after creating, the system becomes more and more slow
~30 min after creating, the system doesn't response any longer
I was able to connect w/ ASM
Before creating the lv, ASM could see both controller
we are using two controllers:
Adaptec 2610A with 4 HDD for the DSS System, and planed for images/iso...
Adaptec 6805 with 8 HDD for FC
Now, ASM only see the 2610A controller, but no longer the 6805
I was able to save the logfile (while the system no longer response to anything).
Sense data: Unit attention (POWER ON, RESET, OR BUS DEVICE RESET OCCURRED). Controller 2, channel 0, SCSI device ID 7, LUN 0, cdb [2a 00 21 50 2a 00 00 02 00 00 00 00], data [70 00 06 00 00 00 00 00 00 00 00 00 29 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00]
An error occurred while accessing the logical device: controller 2, logical device 0
An error occurred while accessing the logical device: controller 2, logical device 252
The HDD are all new, and I had no similar problems while running with CentOs.
I have ordered 2 more HDD's, to see if this solves the problem.
Nevertheless, a dregraded RAID should not bring the whole server down (we have used a RAID 10). A single failed HDD should not be a problem.
As soon I have done some more tests, I will get back to you