https://community.hpe.com/t5/disk-enclosures/logical-drive-failure/m-p/4798174#M37987 Hi, it's possible that they are failed if for example the MSA20s have some kind of connectivity issue with the MSA1500. Then if you restore that connectivity you may get them back.<BR /><BR />Checked that? Are all disks seen?<BR /><BR />ADU report and show tech_support from the CLI of the MSA1500 would be useful. Also leds and lcds. Mon, 13 Jun 2011 18:07:00 GMT Johan Guldmyr 2011-06-13T18:07:00Z https://community.hpe.com/t5/disk-enclosures/logical-drive-failure/m-p/4798173#M37986 I have two msa1500 attatched with 2 msa20 each.<BR />One controller is showing 3 logical volume failure and other controller also showing 3 logical failures.<BR />rebuilding fails at 50%. Can both controllers logical volumes be recovered??? Mon, 13 Jun 2011 11:01:35 GMT https://community.hpe.com/t5/disk-enclosures/logical-drive-failure/m-p/4798173#M37986 GuruG 2011-06-13T11:01:35Z https://community.hpe.com/t5/disk-enclosures/logical-drive-failure/m-p/4798174#M37987 Hi, it's possible that they are failed if for example the MSA20s have some kind of connectivity issue with the MSA1500. Then if you restore that connectivity you may get them back.<BR /><BR />Checked that? Are all disks seen?<BR /><BR />ADU report and show tech_support from the CLI of the MSA1500 would be useful. Also leds and lcds. Mon, 13 Jun 2011 18:07:00 GMT https://community.hpe.com/t5/disk-enclosures/logical-drive-failure/m-p/4798174#M37987 Johan Guldmyr 2011-06-13T18:07:00Z