Hi, I am using Seagate Exos X18 18TB Drives in a Ceph Archives Cluster which is mainly write once/read sometimes. The drives are about 6 months old. I use them in a ceph cluster and also in a ZFS Server. Different Servers (all Supermicro) and different controllers but all of type LSI SAS3008 In the last weeks these drives are experiencing massive read errors and are dying one after another. The dmesg output looks like this: [ 418.546245] sd 0:0:35:0: [sdai] tag#1756 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=7s [ 418.548685] sd 0:0:35:0: [sdai] tag#1756 Sense Key : Medium Error [current] [ 418.549626] sd 0:0:35:0: [sdai] tag#1756 Add. Sense: Unrecovered read error [ 418.550507] sd 0:0:35:0: [sdai] tag#1756 CDB: Read(16) 88 00 00 00 00 00 00 00 08 00 00 00 00 20 00 00 [ 418.552048] blk_update_request: critical medium error, dev sdai, sector 2048 op 0x0:(READ) flags 0x80700 phys_seg 2 prio class 0 [ 420.514045] sd 0:0:35:0: [sdai] tag#1677 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=1s [ 420.518341] sd 0:0:35:0: [sdai] tag#1677 Sense Key : Medium Error [current] [ 420.520766] sd 0:0:35:0: [sdai] tag#1677 Add. Sense: Unrecovered read error [ 420.523222] sd 0:0:35:0: [sdai] tag#1677 CDB: Read(16) 88 00 00 00 00 00 00 00 08 00 00 00 00 08 00 00 [ 420.524770] blk_update_request: critical medium error, dev sdai, sector 2048 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 On the ZFS Ouutput I could see the disks starting with a few read errors and then advancing to some 1000 of errors. Seagate told me to put the drives in a windows or apple computer or otherwise they cannot help. Anyone else having such Disk problems or am i the only one ? ZFS output: NAME STATE READ WRITE CKSUM tank DEGRADED 0 0 0 raidz2-0 DEGRADED 218 0 0 ata-ST18000NM000J-2TV103_ZR53Z7LE DEGRADED 0 0 3.52K too many errors ata-ST18000NM000J-2TV103_ZR53Z4VY DEGRADED 0 0 3.52K too many errors ata-ST18000NM000J-2TV103_ZR53Z56R DEGRADED 0 0 3.52K too many errors ata-ST18000NM000J-2TV103_ZR53YW1R DEGRADED 0 0 3.52K too many errors ata-ST18000NM000J-2TV103_ZR53YF19 DEGRADED 0 0 3.52K too many errors ata-ST18000NM000J-2TV103_ZR53YLKX DEGRADED 0 0 3.52K too many errors ata-ST18000NM000J-2TV103_ZR53Z6P9 DEGRADED 0 0 3.52K too many errors ata-ST18000NM000J-2TV103_ZR53Z773 DEGRADED 0 0 1.52K too many errors ata-ST18000NM000J-2TV103_ZR53Y4ND DEGRADED 0 0 1.52K too many errors ata-ST18000NM000J-2TV103_ZR53YLSZ DEGRADED 0 0 3.13K too many errors ata-ST18000NM000J-2TV103_ZR53Z5VZ DEGRADED 0 0 3.13K too many errors Any ideas ? _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx