hi this is on debian etch with kernel 2.6.26 (backports.org) and aacraid 1.1-5[2456]-ms. the adapter is an adaptec 5805 (rebranded as Supermicro AOC-USAS-S8iR, f/w 15758), 4+1 WD VelociRaptor 300GB disks, RAID10. the disks aren't very good. about every 2 months the background consistency check detects defectiv blocks on some disks. the hotspare disk takes over. that's where the troubles start. Mar 19 20:44:30 ib001 kernel: [4312641.290691] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:44:30 ib001 kernel: [4312641.290792] aacraid: Host adapter reset request. SCSI hang ? Mar 19 20:57:53 ib001 kernel: [4312700.999164] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4312880.704289] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4312880.704388] aacraid: Host adapter reset request. SCSI hang ? Mar 19 20:57:53 ib001 kernel: [4312941.412927] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4312941.413039] aacraid: Host adapter reset request. SCSI hang ? Mar 19 20:57:53 ib001 kernel: [4312951.930474] sd 0:0:0:0: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT,SUGGEST_OK Mar 19 20:57:53 ib001 kernel: [4313001.400935] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4313001.401042] aacraid: Host adapter reset request. SCSI hang ? Mar 19 20:57:53 ib001 kernel: [4313061.796830] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4313061.796930] aacraid: Host adapter reset request. SCSI hang ? Mar 19 20:57:53 ib001 kernel: [4313122.675845] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4313122.675931] aacraid: Host adapter reset request. SCSI hang ? Mar 19 20:57:53 ib001 kernel: [4313183.252118] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4313183.252227] aacraid: Host adapter reset request. SCSI hang ? Mar 19 20:57:53 ib001 kernel: [4313239.408236] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4313239.408337] aacraid: Host adapter reset request. SCSI hang ? Mar 19 20:57:53 ib001 kernel: [4313295.503066] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4313295.503145] aacraid: Host adapter reset request. SCSI hang ? Mar 19 20:57:53 ib001 kernel: [4313305.669682] sd 0:0:0:0: [sda] Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT,SUGGEST_OK Mar 19 20:57:53 ib001 kernel: [4313351.860988] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4313351.861020] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4313351.861047] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4313351.861073] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4313351.861100] aacraid: Host adapter abort request (0,0,0,0) Mar 19 20:57:53 ib001 kernel: [4313351.861191] aacraid: Host adapter reset request. SCSI hang ? Mar 19 20:57:53 ib001 kernel: [4313413.717370] aacraid: SCSI bus appears hung Mar 19 20:58:09 ib001 kernel: [4313517.692627] sd 0:0:0:0: [sda] 585084928 512-byte hardware sectors (299563 MB) Mar 19 20:58:09 ib001 kernel: [4313517.692627] sd 0:0:0:0: [sda] Write Protect is off Mar 19 20:58:09 ib001 kernel: [4313517.692627] sd 0:0:0:0: [sda] Mode Sense: 06 00 10 00 Mar 19 20:58:09 ib001 kernel: [4313517.692627] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA Mar 19 21:46:34 ib001 kernel: [4317148.271355] sd 0:0:0:0: [sda] 585084928 512-byte hardware sectors (299563 MB) Mar 19 21:46:34 ib001 kernel: [4317148.271355] sd 0:0:0:0: [sda] Write Protect is off Mar 19 21:46:34 ib001 kernel: [4317148.271355] sd 0:0:0:0: [sda] Mode Sense: 06 00 10 00 Mar 19 21:46:34 ib001 kernel: [4317148.271355] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, supports DPO and FUA (many "process hung" kernel warnings suppressed) the aacraid seems to be unresponsive after this event. blocking the system. on top of the aacraid device there is drbd running. which also gets mad about aacraid not responding - and then the second drbd node (identical machine) also gets stuck. sometimes this is only "resolveable" by rebooting the host. same problem on 2 other servers with nearly identical hardware. is this expected on an disk failure event? maybe i should try the vanilla 2.6.28.x kernel? - Thomas -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
