Re: [OpenIndiana-discuss] Multiple devices appearing as one behind SAS expander
This is a not too rare problem with current SSDs (The manufacturers haven't recognised the importance of individual WWNs) Even my distributor (winkom) specialized in enterprise SSD listed SSD with individual WWN only after my request. What you can do: disable multipath What you should do: do not use them together with controllers that identify disks based on WWN (ex. LSI SAS2 controller in IT mode) or you may not be able to identify in case of problems. Gea napp-it.org neat problem. generally the wwn is stamped on the drive. are they all marked with the same wwn? who makes the drives? ocz? sandisk? Sent from Jasons' hand held On Mar 21, 2013, at 6:13 AM, Schweiss, Chip c...@innovates.com wrote: I have four 480GB SSDs I'm trying to re-add to my pool as L2ARC. They were all connected internally on the server, but now I have a dedicated SAS JBOD for the 2 1/2 SSDs in the system. The JBOD is a SuperMicro 2U with LSI SAS2X36 expander. The SSDs are are all showing up as a single device: c11t1200d0s0 They are incorrectly identified as the same device by the multipathadm: mutipathadm list lu: /dev/rdsk/c11t1200d0s2 Total Path Count: 4 Operational Path Count: 4 Not sure where napp-it gets its information for it's controller view but this is how it reports them: c14::w5003048001d91b4e,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b4e,0 c14::w5003048001d91b4f,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b4f,0 c14::w5003048001d91b5a,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b5a,0 c14::w5003048001d91b5b,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b5b,0 How do I break this and get OI to see these as 4 independent devices? Thank you, -Chip ___ 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 ___ OpenIndiana-discuss mailing list OpenIndiana-discuss@openindiana.org http://openindiana.org/mailman/listinfo/openindiana-discuss
Re: [OpenIndiana-discuss] Multiple devices appearing as one behind SAS expander
It is possible that all devices show up as having the same WWN, thus the illumos driver cannot tell them apart, and assumes they are one and the same. I've seen this with SSDs from various manufacturers, but only for consumer drives. The manufacturer's response was that those SSDs were supported only one per system, and where you needed more than one you had to go with the enterprise version. On 21 Mar 2013, at 15:13, Schweiss, Chip c...@innovates.com wrote: I have four 480GB SSDs I'm trying to re-add to my pool as L2ARC. They were all connected internally on the server, but now I have a dedicated SAS JBOD for the 2 1/2 SSDs in the system. The JBOD is a SuperMicro 2U with LSI SAS2X36 expander. The SSDs are are all showing up as a single device: c11t1200d0s0 They are incorrectly identified as the same device by the multipathadm: mutipathadm list lu: /dev/rdsk/c11t1200d0s2 Total Path Count: 4 Operational Path Count: 4 Not sure where napp-it gets its information for it's controller view but this is how it reports them: c14::w5003048001d91b4e,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b4e,0 c14::w5003048001d91b4f,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b4f,0 c14::w5003048001d91b5a,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b5a,0 c14::w5003048001d91b5b,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b5b,0 How do I break this and get OI to see these as 4 independent devices? Thank you, -Chip ___ 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
Re: [OpenIndiana-discuss] Multiple devices appearing as one behind SAS expander
On 03/21/2013 02:13 PM, Schweiss, Chip wrote: I have four 480GB SSDs I'm trying to re-add to my pool as L2ARC. They were all connected internally on the server, but now I have a dedicated SAS JBOD for the 2 1/2 SSDs in the system. The JBOD is a SuperMicro 2U with LSI SAS2X36 expander. The SSDs are are all showing up as a single device: c11t1200d0s0 They are incorrectly identified as the same device by the multipathadm: mutipathadm list lu: /dev/rdsk/c11t1200d0s2 Total Path Count: 4 Operational Path Count: 4 Not sure where napp-it gets its information for it's controller view but this is how it reports them: c14::w5003048001d91b4e,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b4e,0 c14::w5003048001d91b4f,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b4f,0 c14::w5003048001d91b5a,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b5a,0 c14::w5003048001d91b5b,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b5b,0 How do I break this and get OI to see these as 4 independent devices? These are SATA SSDs, I presume. Are they attached to the SAS array via an interposer board? http://www.lsi.com/products/storagecomponents/Pages/LSISS9252.aspx -- Saso ___ OpenIndiana-discuss mailing list OpenIndiana-discuss@openindiana.org http://openindiana.org/mailman/listinfo/openindiana-discuss
Re: [OpenIndiana-discuss] Multiple devices appearing as one behind SAS expander
No interposer, Connected directly in the JBOD. So there is no multipath available to them, but since the World Wide Name is not unique on them, OI is seeing them as one device. Curriously, How do you physically use one of those interposers? The drive would not be able to be fully inserted into the hotswap bay with that attached. -Chip How do I break this and get OI to see these as 4 independent devices? These are SATA SSDs, I presume. Are they attached to the SAS array via an interposer board? http://www.lsi.com/products/storagecomponents/Pages/LSISS9252.aspx -- Saso ___ 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
Re: [OpenIndiana-discuss] Multiple devices appearing as one behind SAS expander
neat problem. generally the wwn is stamped on the drive. are they all marked with the same wwn? who makes the drives? ocz? sandisk? Sent from Jasons' hand held On Mar 21, 2013, at 6:13 AM, Schweiss, Chip c...@innovates.com wrote: I have four 480GB SSDs I'm trying to re-add to my pool as L2ARC. They were all connected internally on the server, but now I have a dedicated SAS JBOD for the 2 1/2 SSDs in the system. The JBOD is a SuperMicro 2U with LSI SAS2X36 expander. The SSDs are are all showing up as a single device: c11t1200d0s0 They are incorrectly identified as the same device by the multipathadm: mutipathadm list lu: /dev/rdsk/c11t1200d0s2 Total Path Count: 4 Operational Path Count: 4 Not sure where napp-it gets its information for it's controller view but this is how it reports them: c14::w5003048001d91b4e,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b4e,0 c14::w5003048001d91b4f,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b4f,0 c14::w5003048001d91b5a,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b5a,0 c14::w5003048001d91b5b,0 connected configured unknown Client Device: /dev/dsk/c11t1200d0s0(sd75) disk-path n /devices/pci@0 ,0/pci8086,340e@7/pci1000,30d0@0/iport@f000:scsi::w5003048001d91b5b,0 How do I break this and get OI to see these as 4 independent devices? Thank you, -Chip ___ 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
