Informix on SGI IRIX-6.5

Hi! I have Indigo 2 workstation, and i've just installed Informix Dynamic Server 7.3 on it. All works, ( strange? ;) ) but i can't store my database on the raw partition because when i reload my computer the mode, owner and group of device node in /hw became incorrect ;( informix needs to be owner of the node of raw device i've chowned this: [root@iris src]$ chown informix:informix /hw/rdisk/dks0d1s2 [root@iris src]$ ls -l /hw/rdisk/dks0d1s2 crw------- 1 informix informix 0, 59 ощ 18 18:57 /hw/rdisk/dks0d1s2 then reboot my irix and [root@iris src]$ ls -l /hw/rdisk/dks0d1s1 crw------- 1 root sys 0, 56 ощ 18 18:58 /hw/rdisk/dks0d1s1 and all database data on this partition destroyed :( anybody can help me? what can i do to irix do not change partition owners? or may be informix can work with incorrect mode of data partition or do not destroy database