2-way-mirror to R-5

Cool,
you will not be able to convert from 2-way-mirror to RAID-5, See knowledgebase article emc155688.

http://csgateway.emc.com/primus.asp?id=emc155688

Basically the RAID-5 device is laid out differently in the symmetrix on 4 or 8 volumes depending on config 3+1 or 7+1, whereas the 2 way mirror is simply contigious space on 2 seperate drives, there can be no direct conversion between the 2 types.

Message was edited by: The Benevolent Host S/W & Mainframe forum Moderator

Reason: Added hyperlink to emc155688
David Yates

You could consider cloning the Raid1 to the Raid5 symdev and then start using the new Raid5 symdev instead of the Raid1 symdev.