https://community.hpe.com/t5/bladesystem-general/bl465c-windows-clustering/m-p/4596382#M9541 Afaik SB40 is not shared storage (without adding something else i.e. P4000 virtual appliance (according Product Bulletin: HP LeftHand P4000 VSA turns the SB40c into a scalable and robust iSCSI SAN, featuring, storage clustering for scalability, Network RAID for storage failover, thin provisioning, snapshots, remote replication, and cloning.). So i think X1800SB is better if two disks is enough for you (quorum lun for example). If you need bigger storage, you'll need both of them - X1800SB as iscsi gateway and SB40 attached to it as primary storage. Tue, 09 Mar 2010 08:46:21 GMT Prokopets 2010-03-09T08:46:21Z https://community.hpe.com/t5/bladesystem-general/bl465c-windows-clustering/m-p/4596381#M9540 What sort of shared disk can I use to cluster two BL465c G5's ? Such as a X1800sb and a SB40 Mon, 08 Mar 2010 02:32:20 GMT https://community.hpe.com/t5/bladesystem-general/bl465c-windows-clustering/m-p/4596381#M9540 steve burk_1 2010-03-08T02:32:20Z https://community.hpe.com/t5/bladesystem-general/bl465c-windows-clustering/m-p/4596382#M9541 Afaik SB40 is not shared storage (without adding something else i.e. P4000 virtual appliance (according Product Bulletin: HP LeftHand P4000 VSA turns the SB40c into a scalable and robust iSCSI SAN, featuring, storage clustering for scalability, Network RAID for storage failover, thin provisioning, snapshots, remote replication, and cloning.). So i think X1800SB is better if two disks is enough for you (quorum lun for example). If you need bigger storage, you'll need both of them - X1800SB as iscsi gateway and SB40 attached to it as primary storage. Tue, 09 Mar 2010 08:46:21 GMT https://community.hpe.com/t5/bladesystem-general/bl465c-windows-clustering/m-p/4596382#M9541 Prokopets 2010-03-09T08:46:21Z