Hi all
I am a very new Solaris admin. Reading about SE3510 I found that is possible to boot from it.
I would like to have a 3rd system disk cloned from the first two system disks, in order to boot from it in a disaster case. The problem: I have not that 3rd system disk. My question is: is it possible to clone s1 disk into the array, and use it to boot from OK> prompt?
Thank you in advance.
It is possible but it depends on the OBP revision, the HBA and HBA firmware.
A general rule of thumb is always use the latest versions ;-)
You will also have to remember to "clone" the image onto the array regularly (passwords etc may be updated, drivers added for new hardware etc.)
You should also enable LUN masking so that only this server has access to the root-clone (assuming there are multiple hosts accessing the services of the 3510)
as long as you can see the LUN from the OBP you should be OK. It'll be worth making an alias so that you can boot easily from the LUN on the 3510.
check the firmware on th 3510, v4.14 has issues when being used to boot from.
it's not ideal, but you could dd the disk to the 3510 LUN.
things to watch:
1. fsck the rdsk slices(s) after dd'ing them
2. install a bootblock on the dd'd LUN afterwards
3. if source disks are SDS, then modify the vfstab and /etc/system files , removing sds references, once the dd has completed
all the above should be able to be scripted and crontabbed.
