Valued Contributor
Re: How to find WWN no for SAN tape device

After checking dmesg I got below error. I have no idea what does it mean.

 

# dmesg | grep -e "SCSI TAPE"
SCSI TAPE: dev = 0xcd0491c0 I/O error during close
SCSI TAPE: dev = 0xcd0486c0 I/O error during close
SCSI TAPE: dev = 0xcd0880c0 I/O error during close
SCSI TAPE: dev = 0xcd0f5180 Failed open - st_san_safe enabled
SCSI TAPE: dev = 0xcd0f5180 Failed open - st_san_safe enabled
SCSI TAPE: dev = 0xcd062180 Failed open - st_san_safe enabled

SCSI TAPE: dev = 0xcd0f5180 Failed open - st_san_safe enabled pointing to /dev/rmt/c15t5d1BESTb

# ls -l /dev/rmt | grep f5180
crw-rw-rw-   2 bin        bin        205 0x0f5180 Sep  5  2009 102mb
crw-rw-rw-   2 bin        bin        205 0x0f5180 Sep  5  2009 c15t5d1BESTb

But device status still claimed in ioscan output.

HBA / FC link is working fine.

fcdutil /dev/fcd3

                           Vendor ID is = 0x001077
                           Device ID is = 0x002312
            PCI Sub-system Vendor ID is = 0x00103c
                   PCI Sub-system ID is = 0x0012ba
                               PCI Mode = PCI-X 133 MHz
                       ISP Code version = 3.3.166
                       ISP Chip version = 3
                               Topology = PTTOPT_FABRIC
                             Link Speed = 2Gb
                     Local N_Port_id is = 0xc6001a
                  Previous N_Port_id is = 0xc6001a
            N_Port Node World Wide Name = 0x500110a000100bfb
            N_Port Port World Wide Name = 0x500110a000100bfa
            Switch Port World Wide Name = 0x2001000dec1451c0
            Switch Node World Wide Name = 0x20c6000dec1451c1
                           Driver state = ONLINE
                       Hardware Path is = 0/4/1/1
                     Maximum Frame Size = 2048
         Driver-Firmware Dump Available = YES
         Driver-Firmware Dump Timestamp = Sat May 14 02:12:19 2011
                         Driver Version = @(#) libfcd.a HP Fibre Channel ISP 23xx & 24xx Driver B.11.23.07 /ux/core/isu/FCD/kern/src/common/wsio/fcd_init.c:Sep 14 2006,17:08:33