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Full Discussion: anyone can tell me what is /dev/dsk/c3t600A0B80002FA5F50000000000000000d0s0?
Operating Systems Solaris anyone can tell me what is /dev/dsk/c3t600A0B80002FA5F50000000000000000d0s0? Post 302220672 by MikaBaghinen on Friday 1st of August 2008 10:53:46 AM
Old 08-01-2008
Quote:
Originally Posted by sleepy_11
Hi all,
I just find some strange device (at least to me) on my Sun Blade server, CP3060, like below:
bash-3.00# cd /dev/dsk
bash-3.00# ls c3*
c3t600A0B80002FA5F50000000000000000d0s0 c3t600A0B80002FA60C0000000000000000d0s4
c3t600A0B80002FA5F50000000000000000d0s1 c3t600A0B80002FA60C0000000000000000d0s5
....
And there are total 40 similar ones. Also some IO can be seen on them with "iostat -xnct".
Could anyone please can tell me what kind of disk thy are and what the name meaning is?

Thx in advance
For the case that this is still of interest to you:

these device names, indeed refer to external storage. I guess it could be something like STK Flexline (see A0B80 in the device's name).

If you have root privileges just invoke the format utility. That should, for each external device, display the storage system's name in human readable format.

Also, it seems that mpxio is enabled on that system, otherwise the device names should be shorter.

You also may want to invoke

"cfgadm -alo show_SCSI_LUN"

to determine the corresponding LUN numbers of those devices. This command would also show the controller numbers which are being used to connect to the external storage. In case of mpxio being enabled "c3" usually is a logical device only, which physically consists of c1 + c2 or so.

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LEARN ABOUT OPENSOLARIS

mkdevmaps

mkdevmaps(1M)						  System Administration Commands					     mkdevmaps(1M)

NAME

       mkdevmaps - make device_maps entries

SYNOPSIS

       /usr/sbin/mkdevmaps

DESCRIPTION

       The  mkdevmaps  command	writes	to standard out a set of device_maps(4) entries describing the system's frame buffer, audio, and removable
       media devices.

       The mkdevmaps command is used by the init.d(4) scripts to create or update the /etc/security/device_maps file.

       Entries are generated based on the device special files found in /dev. For the different  categories  of  devices,  the	mkdevmaps  command
       checks for the following files under /dev:

	 audio		 /dev/audio, /dev/audioctl, /dev/sound/...
	 tape		 /dev/rst*, /dev/nrst*, /dev/rmt/...
	 floppy 	 /dev/diskette, /dev/fd*, /dev/rdiskette, /dev/rfd*
	 removable disk  /dev/dsk/c0t?d0s?, /dev/rdsk/c0t?d0s?
	 frame buffer	 /dev/fb

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       allocate(1), bsmconv(1M), attributes(5)

NOTES

       mkdevmaps might not be supported in a future release of the Solaris operating system.

SunOS 5.11							    8 Oct 2003							     mkdevmaps(1M)
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