topic Adding MSA1500CS to cluster w/ MSA1000 in Disk Enclosures https://community.hpe.com/t5/disk-enclosures/adding-msa1500cs-to-cluster-w-msa1000/m-p/4140901#M26103 I have two DL580s in a Win03 cluster, each with two FC connected to a MSA1000 running the active/active firmware. The MSA has two of the 2/8 switches installed. The FC connections from each of the DLs go to both switches. At this moment my setup is without any single points of failure. <BR /><BR />I'm looking to add more clustered storage and can tolerate even slower disk. I know I can add up to 2 MSA30s to the MSA1000, but I may need to scale much higher. <BR /><BR />Will I gain any single points of failure if I do the following?<BR />1. Connect a MSA1500CS with two controllers and two FC interfaces to the switches in the MSA1000.<BR />2. Connect MSA20s in pairs to the MSA1500CS and make RAID1 arrays that span the pairs of 20s.<BR /><BR />If I pretend that a SCSI cable cannot ever fail, could I use one MSA20 at a time and be RAID5/6? Tue, 05 Feb 2008 22:04:12 GMT CG_2 2008-02-05T22:04:12Z Adding MSA1500CS to cluster w/ MSA1000 https://community.hpe.com/t5/disk-enclosures/adding-msa1500cs-to-cluster-w-msa1000/m-p/4140901#M26103 I have two DL580s in a Win03 cluster, each with two FC connected to a MSA1000 running the active/active firmware. The MSA has two of the 2/8 switches installed. The FC connections from each of the DLs go to both switches. At this moment my setup is without any single points of failure. <BR /><BR />I'm looking to add more clustered storage and can tolerate even slower disk. I know I can add up to 2 MSA30s to the MSA1000, but I may need to scale much higher. <BR /><BR />Will I gain any single points of failure if I do the following?<BR />1. Connect a MSA1500CS with two controllers and two FC interfaces to the switches in the MSA1000.<BR />2. Connect MSA20s in pairs to the MSA1500CS and make RAID1 arrays that span the pairs of 20s.<BR /><BR />If I pretend that a SCSI cable cannot ever fail, could I use one MSA20 at a time and be RAID5/6? Tue, 05 Feb 2008 22:04:12 GMT https://community.hpe.com/t5/disk-enclosures/adding-msa1500cs-to-cluster-w-msa1000/m-p/4140901#M26103 CG_2 2008-02-05T22:04:12Z