Well it depends on how much more space you need. Step 1, complete system backup x 2. (Safety net.) I would purchase 3 8GB drives and add on to the current config. Then take the two 4 GB drives out by first moving the data off the drives. Then add the remaining two new 8GB drives. Now you have to boot to DST to build the RAID 5 set. Continue the IPL and start the ASP balance routine. There are specific steps to remove drives from a system. First you tell the system that they are read only. Then you can move the majority of the data off them, all while the system is up and running. The final step of removing them from the ASP involves the system booted to DST thus no one can use it. But if you move the majority of the data off in the beginning, this does not take long. Christopher Bipes Information Services Director CrossCheck, Inc. -----Original Message----- From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Douglas W. Palme Sent: Sunday, November 05, 2006 8:09 PM To: 'Midrange Systems Technical Discussion' Subject: Adding parity and mirroring to a 170 We have a 170 which has never had mirroring or parity. I know that in order to add it, we will have to add a raid controller card, which is not a problem. Our problem lies in the fact that this particular machine only has three drives currently installed. (2) 4GB drives and (1) 8GB. I know that the data is shared across all three drives so my question is, without having to do a complete reload, is there a way for us to replace these drives in a systematic manner and add in raid ? We have a 7102 which is not currently attached but can be if that will help us in this project....
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