https://community.hpe.com/t5/storevirtual-storage/8-5-and-network-raid-5/m-p/4624903#M895 What is the possibility of using Network Raid 5 for a volume on a 2 node cluster? <BR /><BR />If possible, what are the drawbacks? Performance should a node fail? Tue, 27 Apr 2010 18:39:28 GMT Steve McGee 2010-04-27T18:39:28Z https://community.hpe.com/t5/storevirtual-storage/8-5-and-network-raid-5/m-p/4624903#M895 What is the possibility of using Network Raid 5 for a volume on a 2 node cluster? <BR /><BR />If possible, what are the drawbacks? Performance should a node fail? Tue, 27 Apr 2010 18:39:28 GMT https://community.hpe.com/t5/storevirtual-storage/8-5-and-network-raid-5/m-p/4624903#M895 Steve McGee 2010-04-27T18:39:28Z https://community.hpe.com/t5/storevirtual-storage/8-5-and-network-raid-5/m-p/4624904#M896 Possibility? Zero.<BR />You need four nodes for Network RAID 5 - this is hard-coded in SAN/iQ.<BR /><BR />With two nodes you can only do RAID-0 or -10.<BR /><BR />When you use NW-RAID5, a snapshot is created as a 'thin-layer' in NW-RAID1 (on top of the NW-RAID5) to pick up all writes. This avoids the "RAID5 write penalty". Tue, 27 Apr 2010 19:02:58 GMT https://community.hpe.com/t5/storevirtual-storage/8-5-and-network-raid-5/m-p/4624904#M896 Uwe Zessin 2010-04-27T19:02:58Z