On Jul 19, 2012, at 11:41 AM, st...@linuxsuite.org wrote: >> On Jul 19, 2012, at 9:03 AM, st...@linuxsuite.org wrote: >> >>> c3::dsk/c3t3d0 disk connected configured >>> unknown >>> c4 scsi-sas connected configured >>> unknown >>> c4::dsk/c4t5003048001AC5957d0 disk connected configured >>> unknown >>> c4::es/ses1 ESI connected configured >>> unknown >>> c4::smp/expd1 smp connected configured >>> unknown >>> c4::w5000c5000bc44a5d,0 disk-path connected configured >>> unknown >> >> This is one disk path that leads to c2t5000C5000BC44A5Fd0 (as seen in the >> device tree and by format) Note that the last nibble is munged. >> -- richard > > Ok, so why would one disk on c4 show up as > > c4::dsk/c4t5003048001AC5957d0 disk connected configured > > 44. c4t5003048001AC5957d0 <ATA-ST3750640AS-E-698.64GB> > > /pci@0,0/pci8086,340d@6/pci1000,3080@0/iport@f0/disk@w5003048001ac5957,0
I'm not sure of the sequence of events, but I can say that this disk is not recognized as being multipath-capable. The device tree path does not include scsi_vhci, which is the multipath driver. Indeed, the ST3750640AS is described by Seagate as a SATA disk -- not multipath capable. > and these others don't? > > c4::w5000c5000bc44a5d,0 disk-path connected configured > > 0. c2t5000C5000BC44A5Fd0 <SEAGATE-ST3300655SS-0004-279.40GB> > /scsi_vhci/disk@g5000c5000bc44a5f Clearly, this is a multipath-capable disk. Seagate model number for a SAS disk. > > c4::w5000c500525c2f91,0 disk-path connected configured unknown > > 8. c2t5000C500525C2F91d0 <ATA-ST3000DM001-9YN1-CC4H-2.73TB> > /scsi_vhci/disk@g5000c500525c2f91 Here we have another SATA disk, but one that was detected as multipath capable. Is this confusing? Yep, it surely is. Somewhere in the middle, unseen by the OS, is the SATA Tunnel Protocol (STP). This is often implemented in HBAs and coordinates with expanders. All I can say is that there is some combination of disk, HBA, and expander firmware that causes the scsi_vhci multipath detectors to see those disks differently. -- richard > >> >>> c4::w5000c5000bc44cfd,0 disk-path connected configured >>> unknown >>> c4::w5000c5000bc44d61,0 disk-path connected configured >>> unknown >>> c4::w5000c5000bc4490d,0 disk-path connected configured >>> unknown >>> c4::w5000c5000bc44925,0 disk-path connected configured >>> unknown >>> c4::w5000c500016a9369,0 disk-path connected configured >>> unknown >>> c4::w5000c500016ae0fd,0 disk-path connected configured >>> unknown >>> c4::w5000c500525bfb31,0 disk-path connected configured >>> unknown >>> c4::w5000c500525c2f91,0 disk-path connected configured >>> unknown >>> c4::w5000c500525c72b1,0 disk-path connected configured >>> unknown >>> c4::w5000c500525c9673,0 disk-path connected configured >>> unknown >>> c4::w5000c500525eb0ac,0 disk-path connected configured >>> unknown >>> c4::w5000c500525eb2b9,0 disk-path connected configured >>> unknown >>> c4::w5000c500525f2297,0 disk-path connected configured >>> unknown >>> c4::w5000c50001621dc5,0 disk-path connected configured >>> unknown >>> c4::w5000c50045561cea,0 disk-path connected configured >>> unknown >>> c4::w5000c50048990be6,0 disk-path connected configured >>> unknown >>> c4::w5000c500489947a8,0 disk-path connected configured >>> unknown >>> c4::w5000c500489956c1,0 disk-path connected configured >>> unknown >>> c6 scsi-sas connected configured >>> unknown >>> c6::es/ses0 ESI connected configured >>> unknown >>> c6::smp/expd0 smp connected configured >>> unknown >>> c6::w5000cca216c4d4b3,0 disk-path connected configured >>> unknown >>> c6::w5000cca216c50088,0 disk-path connected configured >>> unknown >>> c6::w5000cca216cd8947,0 disk-path connected configured >>> unknown >>> c6::w5000cca216cda7e7,0 disk-path connected configured >>> unknown >>> c6::w5000cca216cdabb4,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce3dc0,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce3dcb,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce3ec3,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce3f6a,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce4cb3,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce4eae,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce4edd,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce17ce,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce52c4,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce52e8,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce512e,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce517f,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce0752,0 disk-path connected configured >>> unknown >>> c6::w5000cca216ce5079,0 disk-path connected configured >>> unknown >>> c6::w5000cca222c7c200,0 disk-path connected configured >>> unknown >>> c6::w5000cca222c8254c,0 disk-path connected configured >>> unknown >>> c7 scsi-sas connected unconfigured >>> unknown >>> usb0/1 unknown empty unconfigured ok >>> usb0/2 unknown empty unconfigured ok >>> usb1/1 unknown empty unconfigured ok >>> usb1/2 unknown empty unconfigured ok >>> usb2/1 unknown empty unconfigured ok >>> usb2/2 unknown empty unconfigured ok >>> usb2/3 usb-hub connected configured ok >>> usb2/3.1 usb-device connected configured ok >>> usb2/3.2 unknown empty unconfigured ok >>> usb2/3.3 unknown empty unconfigured ok >>> >>> Output from format >>> >>> AVAILABLE DISK SELECTIONS: >>> 0. c2t5000C5000BC44A5Fd0 <SEAGATE-ST3300655SS-0004-279.40GB> >>> /scsi_vhci/disk@g5000c5000bc44a5f >>> 1. c2t5000C5000BC44CFFd0 <SEAGATE-ST3300655SS-0004-279.40GB> >>> /scsi_vhci/disk@g5000c5000bc44cff >>> 2. c2t5000C5000BC44D63d0 <SEAGATE-ST3300655SS-0004-279.40GB> >>> /scsi_vhci/disk@g5000c5000bc44d63 >>> 3. c2t5000C5000BC4490Fd0 <SEAGATE-ST3300655SS-0004-279.40GB> >>> /scsi_vhci/disk@g5000c5000bc4490f >>> 4. c2t5000C5000BC44927d0 <SEAGATE-ST3300655SS-0004-279.40GB> >>> /scsi_vhci/disk@g5000c5000bc44927 >>> 5. c2t5000C500016A936Bd0 <SEAGATE-ST3300655SS-0004-279.40GB> >>> /scsi_vhci/disk@g5000c500016a936b >>> 6. c2t5000C500016AE0FFd0 <SEAGATE-ST3300655SS-0004-279.40GB> >>> /scsi_vhci/disk@g5000c500016ae0ff >>> 7. c2t5000C500525BFB31d0 <ATA-ST3000DM001-9YN1-CC4H-2.73TB> >>> /scsi_vhci/disk@g5000c500525bfb31 >>> 8. c2t5000C500525C2F91d0 <ATA-ST3000DM001-9YN1-CC4H-2.73TB> >>> /scsi_vhci/disk@g5000c500525c2f91 >>> 9. c2t5000C500525C72B1d0 <ATA-ST3000DM001-9YN1-CC4H-2.73TB> >>> /scsi_vhci/disk@g5000c500525c72b1 >>> 10. c2t5000C500525C9673d0 <ATA-ST3000DM001-9YN1-CC4H-2.73TB> >>> /scsi_vhci/disk@g5000c500525c9673 >>> 11. c2t5000C500525EB0ACd0 <ATA-ST3000DM001-9YN1-CC4H-2.73TB> >>> /scsi_vhci/disk@g5000c500525eb0ac >>> 12. c2t5000C500525EB2B9d0 <ATA-ST3000DM001-9YN1-CC4H-2.73TB> >>> /scsi_vhci/disk@g5000c500525eb2b9 >>> 13. c2t5000C500525F2297d0 <ATA-ST3000DM001-9YN1-CC4H-2.73TB> >>> /scsi_vhci/disk@g5000c500525f2297 >>> 14. c2t5000C50001621DC7d0 <SEAGATE-ST3300655SS-0004-279.40GB> >>> /scsi_vhci/disk@g5000c50001621dc7 >>> 15. c2t5000C50045561CEAd0 <ATA-ST3000DM001-9YN1-CC4H-2.73TB> >>> /scsi_vhci/disk@g5000c50045561cea >>> 16. c2t5000C50048990BE6d0 <ATA-ST3000DM001-9YN1-CC4H-2.73TB> >>> /scsi_vhci/disk@g5000c50048990be6 >>> 17. c2t5000C500489947A8d0 <ATA-ST3000DM001-9YN1-CC4H-2.73TB> >>> /scsi_vhci/disk@g5000c500489947a8 >>> 18. c2t5000C500489956C1d0 <ATA-ST3000DM001-9YN1-CC4H-2.73TB> >>> /scsi_vhci/disk@g5000c500489956c1 >>> 19. c2t5000CCA216C4D4B3d0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216c4d4b3 >>> 20. c2t5000CCA216C50088d0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216c50088 >>> 21. c2t5000CCA216CD8947d0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216cd8947 >>> 22. c2t5000CCA216CDA7E7d0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216cda7e7 >>> 23. c2t5000CCA216CDABB4d0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216cdabb4 >>> 24. c2t5000CCA216CE3DC0d0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce3dc0 >>> 25. c2t5000CCA216CE3DCBd0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce3dcb >>> 26. c2t5000CCA216CE3EC3d0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce3ec3 >>> 27. c2t5000CCA216CE3F6Ad0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce3f6a >>> 28. c2t5000CCA216CE4CB3d0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce4cb3 >>> 29. c2t5000CCA216CE4EAEd0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce4eae >>> 30. c2t5000CCA216CE4EDDd0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce4edd >>> 31. c2t5000CCA216CE17CEd0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce17ce >>> 32. c2t5000CCA216CE52C4d0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce52c4 >>> 33. c2t5000CCA216CE52E8d0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce52e8 >>> 34. c2t5000CCA216CE512Ed0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce512e >>> 35. c2t5000CCA216CE517Fd0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce517f >>> 36. c2t5000CCA216CE0752d0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce0752 >>> 37. c2t5000CCA216CE5079d0 <ATA-Hitachi HDS72101-A70M-931.51GB> >>> /scsi_vhci/disk@g5000cca216ce5079 >>> 38. c2t5000CCA222C7C200d0 <ATA-Hitachi HDS72202-A3EA-1.82TB> >>> /scsi_vhci/disk@g5000cca222c7c200 >>> 39. c2t5000CCA222C8254Cd0 <ATA-Hitachi HDS72202-A3EA-1.82TB> >>> /scsi_vhci/disk@g5000cca222c8254c >>> 40. c3t0d0 <DELL-PERC6/i-1.22 cyl 8841 alt 2 hd 255 sec 63> >>> /pci@0,0/pci8086,340b@4/pci1028,1f0c@0/sd@0,0 >>> 41. c3t1d0 <DELL-PERC 6/i-1.22-55.38GB> >>> /pci@0,0/pci8086,340b@4/pci1028,1f0c@0/sd@1,0 >>> 42. c3t2d0 <DELL-PERC6/i-1.22 cyl 19383 alt 2 hd 255 sec 63> >>> /pci@0,0/pci8086,340b@4/pci1028,1f0c@0/sd@2,0 >>> 43. c3t3d0 <DELL-PERC6/i-1.22 cyl 19383 alt 2 hd 255 sec 63> >>> /pci@0,0/pci8086,340b@4/pci1028,1f0c@0/sd@3,0 >>> 44. c4t5003048001AC5957d0 <ATA-ST3750640AS-E-698.64GB> >>> >>> /pci@0,0/pci8086,340d@6/pci1000,3080@0/iport@f0/disk@w5003048001ac5957,0 >>> Specify disk (enter its number): Specify disk (enter its number): >>> ~ >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> OpenIndiana-discuss mailing list >>> OpenIndiana-discuss@openindiana.org >>> http://openindiana.org/mailman/listinfo/openindiana-discuss >> >> -- >> ZFS Performance and Training >> richard.ell...@richardelling.com >> +1-760-896-4422 >> >> >> >> _______________________________________________ >> OpenIndiana-discuss mailing list >> OpenIndiana-discuss@openindiana.org >> http://openindiana.org/mailman/listinfo/openindiana-discuss >> > > > > _______________________________________________ > OpenIndiana-discuss mailing list > OpenIndiana-discuss@openindiana.org > http://openindiana.org/mailman/listinfo/openindiana-discuss -- ZFS Performance and Training richard.ell...@richardelling.com +1-760-896-4422 _______________________________________________ OpenIndiana-discuss mailing list OpenIndiana-discuss@openindiana.org http://openindiana.org/mailman/listinfo/openindiana-discuss
