I have two HDDs with RAID1 in 7835 MCS box and want to scratch re-install the Unity system on 1st HDD with taking out the 2nd to roll-back in case.
The Unity system only recognize single HDD after scratch install on 1st. How I can configure RAID1 again to add the 2nd into the mirroring set?
Thanks in advance,
Take a look at this post (note it's for HP server). If you are using an IBM server you will need different procedures. http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1048925. Go to the second to last entry, which contains the instructions:
ACU allows you to migrate RAID for SCSI disk. All you need to do as below:
1. Original Array A with 36GB RAID 0.
2. Slot in the new disk.
3. In ACU highlight the Array A and choose Expand Array and add the new disk.
4. After expand the array, you should able to change your current RAID to 1+0.
Make sure the new disk size id equal or greater than old disk.
There is also the HP reference manual posted - http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00294139/c00294139.pdf
I've not attempted this myself with a running production system. I would recommend checking with TAC to see if this change is supported with a running Unity. Also I'd create a Unity DiRT Backup just in case.
Hope this helps! Ginger