V20z and LSI MegaRAID with Linux

Hello,

We have Sun Fire V20z with MegaRAID 320-2X Dual Ultra-320 SCSI installed and StorEdge 3310 JBOD attached.

The problem is

1. When MegaRAID card is inside of system, network interfaces do not work. (link is up, but pings not run).

2. Logical drive 0 (raid5 on disks of 3310) is not available for Linux (RedHat).

We tried the same configuriation with this MegaRAID card in V40z, which working fully properly. (Raid-volume is available for the OS and network interfaces are working. Som the RAID card is well).

What is the reason of troubles with MegaRAID in Sun Fire V20z?

[628 byte] By [alx] at [2007-11-25 22:49:35]
# 1
Can you post the part number for the card and where you have installed it in the system?
mlennon at 2007-7-5 17:05:02 > top of Java-index,Sun Hardware,Servers - General Discussion...
# 2

I also would need to see a little more information.

Here is what I have seen with some of my systems. Internal boot drives show up at the bottom of the /dev/sd# list. After installing the OS and adding external JBOD disks the OS looks to open /dev/sda1 for the boot block info. Since the external JBOD disks now sit at /dev/sda1......../dev/sdv1 the boot drive is pushed to the bottom and can't be found. Making of a new "ramdisk"(mkinitrd) is required to move the internal drive to load first before the JBOD.

Post the output of:

cat /etc/modprobe.conf

cat /boot/grub/grub.conf

ls /boot

error at 2007-7-5 17:05:02 > top of Java-index,Sun Hardware,Servers - General Discussion...
# 3
Thank you for answers, We have resolved the problem by renewing of server's BIOS.The device conflict diappeared and at present all is workong properly under both linuxes and Solaris 10.
alx at 2007-7-5 17:05:02 > top of Java-index,Sun Hardware,Servers - General Discussion...
# 4
There you go, throubleshooting Sun issues can be as simple as applying the latest updates whether SPARC or x64. It's usually a good idea to try the updates before posting, check the sticky threads in the workstation forum.
mlennon at 2007-7-5 17:05:02 > top of Java-index,Sun Hardware,Servers - General Discussion...