Good morning, in system log I've found some complains: Apr 10 08:06:53 kostnew kernel: [ 649.402046] hpsa 0000:05:00.0: cp ffff880037900000 has check condition: unknown type: Sense: 0x5, ASC: 0x24, ASCQ: 0x0, Returning result: 0x2, cmd=[1a 00 1c 00 40 00 00 00 00 00 00 00 00 00 00 00] Apr 10 08:06:53 kostnew kernel: [ 649.420465] hpsa 0000:05:00.0: cp ffff880037900000 has check condition: unknown type: Sense: 0x5, ASC: 0x24, ASCQ: 0x0, Returning result: 0x2, cmd=[1a 00 1c 00 40 00 00 00 00 00 00 00 00 00 00 00] Apr 10 08:06:53 kostnew kernel: [ 649.438721] hpsa 0000:05:00.0: cp ffff880037900000 has check condition: unknown type: Sense: 0x5, ASC: 0x24, ASCQ: 0x0, Returning result: 0x2, cmd=[1a 00 1c 00 40 00 00 00 00 00 00 00 00 00 00 00] Apr 10 08:11:53 kostnew kernel: [ 949.125037] hpsa 0000:05:00.0: cp ffff880037900000 has check condition: unknown type: Sense: 0x5, ASC: 0x24, ASCQ: 0x0, Returning result: 0x2, cmd=[1a 00 1c 00 40 00 00 00 00 00 00 00 00 00 00 00] Apr 10 08:11:53 kostnew kernel: [ 949.138095] hpsa 0000:05:00.0: cp ffff880037900000 has check condition: unknown type: Sense: 0x5, ASC: 0x24, ASCQ: 0x0, Returning result: 0x2, cmd=[1a 00 1c 00 40 00 00 00 00 00 00 00 00 00 00 00] Apr 10 08:11:53 kostnew kernel: [ 949.151090] hpsa 0000:05:00.0: cp ffff880037900000 has check condition: unknown type: Sense: 0x5, ASC: 0x24, ASCQ: 0x0, Returning result: 0x2, cmd=[1a 00 1c 00 40 00 00 00 00 00 00 00 00 00 00 00] There are 2x146GB sas disks in the mirror, before update by "you" I've removed one disk (as a point to return :) ) and made update. There were not kernel update, only some flash, mozilla or so. But the complains started . Tried to restart, power off (removed power cables too) and took another 146GB sas disk into a bay. I'm out of ideas. Anyway - on the HP web are some links to decode that complains. But I do not use tape. Also remove "hpsa" module from "/etc/sysconfig/kernel" - not helped... Any suggestions or kick me to the right way ? Thanks and best regards J.K.