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Operating Systems AIX Difference between Major and Minor in AIX Post 302319070 by zxmaus on Saturday 23rd of May 2009 05:23:52 PM
Old 05-23-2009
If you run ASM, the major/minor numbers of your disk devices compared with the ASM devices are the only way for you to find out if a disk is in use or not.

In addition they help you to find out which logdevice is too small for example - the errpt only gives you the major/minor numbers but doesnt tell you the name of the logfile.

If you run a veritas cluster, you have to tell the clusterconfig which major number your volumegroups have to enable the cluster to vary it on ...

ODM manages filesystems and rawdevices via major/minor and determines which logdevice corresponds to which filesystem

Kind regards
zxmaus
 

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pgmtexture(1)						      General Commands Manual						     pgmtexture(1)

NAME
pgmtexture - calculate textural features on a portable graymap SYNOPSIS
pgmtexture [-d d] [pgmfile] DESCRIPTION
Reads a portable graymap as input. Calculates textural features based on spatial dependence matrices at 0, 45, 90, and 135 degrees for a distance d (default = 1). Textural features include: (1) Angular Second Moment, (2) Contrast, (3) Correlation, (4) Variance, (5) Inverse Difference Moment, (6) Sum Average, (7) Sum Variance, (8) Sum Entropy, (9) Entropy, (10) Difference Variance, (11) Difference Entropy, (12, 13) Information Measures of Correlation, and (14) Maximal Correlation Coefficient. Algorithm taken from: Haralick, R.M., K. Shanmugam, and I. Dinstein. 1973. Textural features for image classification. IEEE Transactions on Systems, Man, and Cybertinetics, SMC-3(6):610-621. BUGS
The program can run incredibly slow for large images (larger than 64 x 64) and command line options are limited. The method for finding (14) the maximal correlation coefficient, which requires finding the second largest eigenvalue of a matrix Q, does not always converge. REFERENCES
IEEE Transactions on Systems, Man, and Cybertinetics, SMC-3(6):610-621. SEE ALSO
pgm(5), pnmcut(1) AUTHOR
Copyright (C) 1991 by Texas Agricultural Experiment Station, employer for hire of James Darrell McCauley. 22 Aug 1991 pgmtexture(1)
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