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тАО07-01-2009 06:42 AM
тАО07-01-2009 06:42 AM
Device File Naming
ioscan -funC disk
Class I H/W Path Driver S/W State H/W Type Description
=================================================================================
disk 2 0/0/2/1.0.16.0.0 sdisk CLAIMED DEVICE TEAC DV-28E-V
/dev/dsk/c0t0d0 /dev/rdsk/c0t0d0
disk 1 0/3/0/0/0/0.0.0 sdisk CLAIMED DEVICE HP LOGICAL VOLUME
/dev/dsk/c1t0d0 /dev/dsk/c1t0d0s2 /dev/rdsk/c1t0d0 /dev/rdsk/c1t0d0s2
/dev/dsk/c1t0d0s1 /dev/dsk/c1t0d0s3 /dev/rdsk/c1t0d0s1 /dev/rdsk/c1t0d0s3
disk 3 0/5/1/0/4/0.2.116.0.0.0.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t0d0 /dev/rdsk/c2t0d0
disk 4 0/5/1/0/4/0.2.116.0.0.0.1 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t0d1 /dev/rdsk/c2t0d1
disk 5 0/5/1/0/4/0.2.116.0.0.0.2 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t0d2 /dev/rdsk/c2t0d2
disk 6 0/5/1/0/4/0.2.116.0.0.0.3 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t0d3 /dev/rdsk/c2t0d3
disk 7 0/5/1/0/4/0.2.116.0.0.0.4 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t0d4 /dev/rdsk/c2t0d4
disk 8 0/5/1/0/4/0.2.116.0.0.0.5 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t0d5 /dev/rdsk/c2t0d5
disk 9 0/5/1/0/4/0.2.116.0.0.0.6 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t0d6 /dev/rdsk/c2t0d6
disk 10 0/5/1/0/4/0.2.116.0.0.0.7 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t0d7 /dev/rdsk/c2t0d7
disk 11 0/5/1/0/4/0.2.116.0.0.1.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t1d0 /dev/rdsk/c2t1d0
disk 12 0/5/1/0/4/0.2.116.0.0.1.1 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t1d1 /dev/rdsk/c2t1d1
disk 13 0/5/1/0/4/0.2.116.0.0.1.2 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t1d2 /dev/rdsk/c2t1d2
disk 14 0/5/1/0/4/0.2.116.0.0.1.3 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t1d3 /dev/rdsk/c2t1d3
disk 15 0/5/1/0/4/0.2.116.0.0.1.4 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t1d4 /dev/rdsk/c2t1d4
disk 16 0/5/1/0/4/0.2.116.0.0.1.5 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t1d5 /dev/rdsk/c2t1d5
disk 17 0/5/1/0/4/0.2.116.0.0.1.6 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t1d6 /dev/rdsk/c2t1d6
disk 18 0/5/1/0/4/0.2.116.0.0.1.7 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t1d7 /dev/rdsk/c2t1d7
disk 19 0/5/1/0/4/0.2.116.0.0.2.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t2d0 /dev/rdsk/c2t2d0
disk 20 0/5/1/0/4/0.2.116.0.0.2.1 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t2d1 /dev/rdsk/c2t2d1
disk 21 0/5/1/0/4/0.2.116.0.0.2.2 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t2d2 /dev/rdsk/c2t2d2
disk 22 0/5/1/0/4/0.2.116.0.0.2.3 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t2d3 /dev/rdsk/c2t2d3
disk 23 0/5/1/0/4/0.2.116.0.0.2.4 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t2d4 /dev/rdsk/c2t2d4
disk 24 0/5/1/0/4/0.2.116.0.0.2.5 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t2d5 /dev/rdsk/c2t2d5
disk 25 0/5/1/0/4/0.2.116.0.0.2.6 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t2d6 /dev/rdsk/c2t2d6
disk 26 0/5/1/0/4/0.2.116.0.0.15.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t15d0 /dev/rdsk/c2t15d0
disk 27 0/5/1/0/4/0.2.116.0.0.15.1 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t15d1 /dev/rdsk/c2t15d1
disk 28 0/5/1/0/4/0.2.116.0.0.15.2 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t15d2 /dev/rdsk/c2t15d2
disk 29 0/5/1/0/4/0.2.116.0.0.15.3 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c2t15d3 /dev/rdsk/c2t15d3
disk 30 0/5/1/0/4/1.1.116.0.0.0.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t0d0 /dev/rdsk/c4t0d0
disk 31 0/5/1/0/4/1.1.116.0.0.0.1 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t0d1 /dev/rdsk/c4t0d1
disk 32 0/5/1/0/4/1.1.116.0.0.0.2 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t0d2 /dev/rdsk/c4t0d2
disk 33 0/5/1/0/4/1.1.116.0.0.0.3 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t0d3 /dev/rdsk/c4t0d3
disk 34 0/5/1/0/4/1.1.116.0.0.0.4 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t0d4 /dev/rdsk/c4t0d4
disk 35 0/5/1/0/4/1.1.116.0.0.0.5 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t0d5 /dev/rdsk/c4t0d5
disk 36 0/5/1/0/4/1.1.116.0.0.0.6 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t0d6 /dev/rdsk/c4t0d6
disk 37 0/5/1/0/4/1.1.116.0.0.0.7 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t0d7 /dev/rdsk/c4t0d7
disk 38 0/5/1/0/4/1.1.116.0.0.1.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t1d0 /dev/rdsk/c4t1d0
disk 39 0/5/1/0/4/1.1.116.0.0.1.1 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t1d1 /dev/rdsk/c4t1d1
disk 40 0/5/1/0/4/1.1.116.0.0.1.2 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t1d2 /dev/rdsk/c4t1d2
disk 41 0/5/1/0/4/1.1.116.0.0.1.3 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t1d3 /dev/rdsk/c4t1d3
disk 42 0/5/1/0/4/1.1.116.0.0.1.4 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t1d4 /dev/rdsk/c4t1d4
disk 43 0/5/1/0/4/1.1.116.0.0.1.5 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t1d5 /dev/rdsk/c4t1d5
disk 44 0/5/1/0/4/1.1.116.0.0.1.6 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t1d6 /dev/rdsk/c4t1d6
disk 45 0/5/1/0/4/1.1.116.0.0.1.7 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t1d7 /dev/rdsk/c4t1d7
disk 46 0/5/1/0/4/1.1.116.0.0.2.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t2d0 /dev/rdsk/c4t2d0
disk 47 0/5/1/0/4/1.1.116.0.0.2.1 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t2d1 /dev/rdsk/c4t2d1
disk 48 0/5/1/0/4/1.1.116.0.0.2.2 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t2d2 /dev/rdsk/c4t2d2
disk 49 0/5/1/0/4/1.1.116.0.0.2.3 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t2d3 /dev/rdsk/c4t2d3
disk 50 0/5/1/0/4/1.1.116.0.0.2.4 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t2d4 /dev/rdsk/c4t2d4
disk 51 0/5/1/0/4/1.1.116.0.0.2.5 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t2d5 /dev/rdsk/c4t2d5
disk 52 0/5/1/0/4/1.1.116.0.0.2.6 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t2d6 /dev/rdsk/c4t2d6
disk 53 0/5/1/0/4/1.1.116.0.0.15.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t15d0 /dev/rdsk/c4t15d0
disk 54 0/5/1/0/4/1.1.116.0.0.15.1 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t15d1 /dev/rdsk/c4t15d1
disk 55 0/5/1/0/4/1.1.116.0.0.15.2 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t15d2 /dev/rdsk/c4t15d2
disk 56 0/5/1/0/4/1.1.116.0.0.15.3 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c4t15d3 /dev/rdsk/c4t15d3
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тАО07-01-2009 06:48 AM
тАО07-01-2009 06:48 AM
Re: Device File Naming
The last digit in the string 0/5/1/0/4/0.2.116.0.0.0.3 is the LUN number.
The assignment has to do with the I/O slot number that the HBA card is inserted in.
For more information, look up your server hardware layout at http://docs.hp.com
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com
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тАО07-01-2009 06:52 AM
тАО07-01-2009 06:52 AM
Re: Device File Naming
Where is the difference? I don't see any difference. "d" represents the lun number and "t" represents the target and "c" represents the instance number.
Ganesh.
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тАО07-01-2009 06:55 AM
тАО07-01-2009 06:55 AM
Re: Device File Naming
HPUX is installed in the s2 slice if I am not mistaken. Have not build and integrity system for a while. Hence the information is a bit rusty.
UNIX because I majored in cryptology...
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тАО07-01-2009 07:00 AM
тАО07-01-2009 07:00 AM
Re: Device File Naming
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тАО07-01-2009 07:09 AM
тАО07-01-2009 07:09 AM
Re: Device File Naming
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тАО07-01-2009 07:19 AM
тАО07-01-2009 07:19 AM
Re: Device File Naming
c is controller followed by a number
d is disk followed by a number.
The patterns you see are to accommodate large numbers of LUNS.
I agree however your question is a bit confusing. A little time spent clarifying might get you better answers.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
Sponsor: http://hpux.ws
Twitter: http://twitter.com/hpuxlinux
Founder http://newdatacloud.com