I am not a UNIX admin . I work in application support team.
while monitoring /var/adm/messages , i received
Code:
Feb 24 09:30:13 cbs143d001 Corrupt label; wrong magic number
Feb 24 09:36:44 cbs143d001 scsi: [ID 107833 kern.warning] WARNING: /pci@1e,600000/ide@d/sd@0,0 (sd3):
Feb 24 09:36:44 cbs143d001 transport rejected bad packet
Feb 24 09:36:44 cbs143d001 scsi: [ID 107833 kern.warning] WARNING: /pci@1e,600000/ide@d/sd@0,0 (sd3):
Feb 24 09:36:44 cbs143d001 transport rejected bad packet
Feb 24 09:36:45 cbs143d001 scsi: [ID 107833 kern.warning] WARNING: /pci@1e,600000/ide@d/sd@0,0 (sd3):
Feb 24 09:36:45 cbs143d001 transport rejected bad packet
Feb 24 09:36:45 cbs143d001 scsi: [ID 107833 kern.warning] WARNING: /pci@1e,600000/ide@d/sd@0,0 (sd3):
Feb 24 09:36:45 cbs143d001 transport rejected bad packet
when i dispatched this to my UNIX (SYS ADMIN)group he gave the following reply
Code:
ls -l /dev/* | grep '/pci@1e,600000/ide@d/sd@0,0'
lrwxrwxrwx 1 root root 42 Dec 21 2006 c0t0d0s0 -> ../../devices/pci@1e,600000/ide@d/sd@0,0:a
lrwxrwxrwx 1 root root 42 Dec 21 2006 c0t0d0s1 -> ../../devices/pci@1e,600000/ide@d/sd@0,0:b
lrwxrwxrwx 1 root root 42 Dec 21 2006 c0t0d0s2 -> ../../devices/pci@1e,600000/ide@d/sd@0,0:c
lrwxrwxrwx 1 root root 42 Dec 21 2006 c0t0d0s3 -> ../../devices/pci@1e,600000/ide@d/sd@0,0:d
lrwxrwxrwx 1 root root 42 Dec 21 2006 c0t0d0s4 -> ../../devices/pci@1e,600000/ide@d/sd@0,0:e
lrwxrwxrwx 1 root root 42 Dec 21 2006 c0t0d0s5 -> ../../devices/pci@1e,600000/ide@d/sd@0,0:f
c0t0d0 Soft Errors: 88188 Hard Errors: 0 Transport Errors: 242376
Vendor: TSSTcorp Product: DVD-ROM TS-L462C Revision: SI00 Serial No:
Size: 0.00GB <0 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 88188 Predictive Failure Analysis: 0
These errors are being caused by dvd rom.
my concern is to know wether c0t0d0 is a dvdrom . If it is , then how can it be sliced as cotod0s0,s1 and so on as in the above logs
and the cdrom/dvdrom on this livebox is not being used,so how this can raisethese errors.I asked the same questions to my UNIX team but they are not responding.
1) if the cd/dvdrom drive is not being used can it generate such errors.
2) how is cd/dvd rom diffrentiated from normal hard drive in /dev file
in the above logs dvdrom is being shown as c0t0d0
now in unix same notation is being used for harddrives .
so how do we diffrentiate them.
3) if the cd/dvdrom is not being used by the system so will it do if we do not replace it and let it generate the errors in /var/adm/messages and truncate it periodically.
Hi
1) yes, you can see the errors even if the cdrom drive is not used at all
2) this is how the OS sees the devices, via controller numbers and target id etc.
you can check the device path from ok> prompt too , using devalias
3) yes, you may not wish to replace the drive and continue using the system
BUT, a caution!! if your system corrupts for any reason and if there's a need rise to use the drive to boot from cdrom, THEN YOU WILL have a problem..
SO suggest to just replace it.
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