https://community.hpe.com/t5/disk-enclosures/p800-two-msa50-s/m-p/4699445#M36045 There is a way to get the redundancey between MSA50s. To achieve this we need to cascade the 2 MSA50 boxes and should be connected to single controller port. If you connect 2 MSA boxes to different ports on the controllers then we can't perfom array creation by using both MSA50s. each array has to manage seperately.<BR /><BR />But i hope you can achieve redundancy even if connect to different ports on P800 subjected to you need to use software based mirroring. Mon, 18 Oct 2010 07:30:30 GMT Sivaramakrishna_1 2010-10-18T07:30:30Z https://community.hpe.com/t5/disk-enclosures/p800-two-msa50-s/m-p/4699444#M36044 Is it possible to connect two msa50 storage boxes to a p800 controller and setup raid 1+0 mirroring over the two msa's. <BR />So if one msa50 dies the disk will still be available. Thu, 14 Oct 2010 13:22:10 GMT https://community.hpe.com/t5/disk-enclosures/p800-two-msa50-s/m-p/4699444#M36044 wobbe 2010-10-14T13:22:10Z https://community.hpe.com/t5/disk-enclosures/p800-two-msa50-s/m-p/4699445#M36045 There is a way to get the redundancey between MSA50s. To achieve this we need to cascade the 2 MSA50 boxes and should be connected to single controller port. If you connect 2 MSA boxes to different ports on the controllers then we can't perfom array creation by using both MSA50s. each array has to manage seperately.<BR /><BR />But i hope you can achieve redundancy even if connect to different ports on P800 subjected to you need to use software based mirroring. Mon, 18 Oct 2010 07:30:30 GMT https://community.hpe.com/t5/disk-enclosures/p800-two-msa50-s/m-p/4699445#M36045 Sivaramakrishna_1 2010-10-18T07:30:30Z https://community.hpe.com/t5/disk-enclosures/p800-two-msa50-s/m-p/4699446#M36046 But if you cascade the msa50's wouldn't the first box be your single point of failure?<BR />So there is no way to setup a hardware raid between the two MSA's when you connect them to separate ports on the p800?<BR />I don't like the idea of using software raid.<BR /> Mon, 18 Oct 2010 08:02:01 GMT https://community.hpe.com/t5/disk-enclosures/p800-two-msa50-s/m-p/4699446#M36046 wobbe 2010-10-18T08:02:01Z