[OmniOS-discuss] disk failure causing reboot?

[Jeff Stockett]

A drive failed in one of our supermicro 5048R-E1CR36L servers running omnios r151012 last night, and somewhat unexpectedly, the whole system seems to have panicked.

May 18 04:43:08 zfs01 scsi: [ID 365881 kern.info] /pci at 0,0/pci8086,2f02 at 1/pci15d9,808 at 0 (mpt_sas0):
May 18 04:43:08 zfs01         Log info 0x31140000 received for target 29 w50000c0f01f1bf06.
May 18 04:43:08 zfs01         scsi_status=0x0, ioc_status=0x8048, scsi_state=0xc
May 18 04:44:36 zfs01 genunix: [ID 843051 kern.info] NOTICE: SUNW-MSG-ID: SUNOS-8000-0G, TYPE: Error, VER: 1, SEVERITY: Major
May 18 04:44:36 zfs01 unix: [ID 836849 kern.notice]
May 18 04:44:36 zfs01 ^Mpanic[cpu0]/thread=ffffff00f3ecbc40:
May 18 04:44:36 zfs01 genunix: [ID 918906 kern.notice] I/O to pool 'dpool' appears to be hung.
May 18 04:44:36 zfs01 unix: [ID 100000 kern.notice]
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3ecba20 zfs:vdev_deadman+10b ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3ecba70 zfs:vdev_deadman+4a ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3ecbac0 zfs:vdev_deadman+4a ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3ecbaf0 zfs:spa_deadman+ad ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3ecbb90 genunix:cyclic_softint+fd ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3ecbba0 unix:cbe_low_level+14 ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3ecbbf0 unix:av_dispatch_softvect+78 ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3ecbc20 apix:apix_dispatch_softint+35 ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3e05990 unix:switch_sp_and_call+13 ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3e059e0 apix:apix_do_softint+6c ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3e05a40 apix:apix_do_interrupt+34a ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3e05a50 unix:cmnint+ba ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3e05bc0 unix:acpi_cpu_cstate+11b ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3e05bf0 unix:cpu_acpi_idle+8d ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3e05c00 unix:cpu_idle_adaptive+13 ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3e05c20 unix:idle+a7 ()
May 18 04:44:36 zfs01 genunix: [ID 655072 kern.notice] ffffff00f3e05c30 unix:thread_start+8 ()
May 18 04:44:36 zfs01 unix: [ID 100000 kern.notice]
May 18 04:44:36 zfs01 genunix: [ID 672855 kern.notice] syncing file systems...
May 18 04:44:38 zfs01 genunix: [ID 904073 kern.notice]  done
May 18 04:44:39 zfs01 genunix: [ID 111219 kern.notice] dumping to /dev/zvol/dsk/rpool/dump, offset 65536, content: kernel
May 18 04:44:39 zfs01 ahci: [ID 405573 kern.info] NOTICE: ahci0: ahci_tran_reset_dport port 1 reset port
May 18 05:17:56 zfs01 genunix: [ID 100000 kern.notice]
May 18 05:17:56 zfs01 genunix: [ID 665016 kern.notice] ^M100% done: 8607621 pages dumped,
May 18 05:17:56 zfs01 genunix: [ID 851671 kern.notice] dump succeeded

The disks are all 4TB WD40001FYYG enterprise SAS drives.  Googling seems to indicate it is a known problem with the way the various subsystems sometimes interact. Is there any way to fix/workaround this issue?
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