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" <[email protected]> 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: c11t0000120000000000d0s0
They are incorrectly identified as the same device by the multipathadm:
mutipathadm list lu:
/dev/rdsk/c11t0000120000000000d0s2
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/c11t0000120000000000d0s0(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/c11t0000120000000000d0s0(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/c11t0000120000000000d0s0(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/c11t0000120000000000d0s0(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
[email protected]
http://openindiana.org/mailman/listinfo/openindiana-discuss
_______________________________________________
OpenIndiana-discuss mailing list
[email protected]
http://openindiana.org/mailman/listinfo/openindiana-discuss
_______________________________________________
OpenIndiana-discuss mailing list
[email protected]
http://openindiana.org/mailman/listinfo/openindiana-discuss
