11-20-2011
Hi,
the default value of maxStatCache is 4 * maxFilesToCache
On system where maxFilesToCache is greatly increased it is recommended that this value be manually set to something less than 4 * maxFilesToCache
There is btw a pretty good redbook available about
tuning gpfs
Regards
zxmaus
10 More Discussions You Might Find Interesting
1. AIX
dear all
can i create two gpfs in one node each gpfs is pointing to single hdiskpower (1 Reply)
Discussion started by: thecobra151
1 Replies
2. AIX
Hi,
does anyone here happen to know if I could run GLVM or GPFS on Solid State Disks?
I have a high volume / high transaction Sybase HACMP cluster currently setup with SRDF to the DR datacentre. My business now considers to move everything to SSD storage but we still need to get the data to... (0 Replies)
Discussion started by: zxmaus
0 Replies
3. AIX
:cool:Hello,
can someone guide me how to create a GPFS filesystem, I've read a couple of redbooks however certain things are still not certain, like if you require to download files or licenses...
any help would be appreciated! (2 Replies)
Discussion started by: ollie01
2 Replies
4. AIX
Hi,
I have a running GPFS cluster. For one every mountpoint that i have created i have one disk assigned to it. That disk is converted to an NSD and is a part of the GPFS Cluster.
Now i have a new disk and there is this requirement to add it to the GPFS cluster, such that this becomes an NSD.... (1 Reply)
Discussion started by: aixromeo
1 Replies
5. AIX
Hello I am interested if anybody uses GPFS and is it must to have GPFS in the POWERHA environment?
and can GPFS work as cluster active active or active passive
thanks in advance (0 Replies)
Discussion started by: Vit0_Corleone
0 Replies
6. AIX
Dear all
for the last few days i was searching in IBM web site for GPFS 3.3 to upgrade my gpfs from 3.2 to 3.3 and i did not find the download link for the GPFS 3.3 in IBM website please can anyone give me the link . (4 Replies)
Discussion started by: thecobra151
4 Replies
7. AIX
Hi
We are doing the migration of DMX3 disks to DMX4 disks using migratepv. We are not using GPFS but we have gpfs disks present in the server. Can anyone advise how to get rid of GPFS in both the servers cbspsrdb01 and cbspsrdb02. I will do migratepv for the other disks present in the servers... (2 Replies)
Discussion started by: newtoaixos
2 Replies
8. AIX
Hello, I need to test whether our product will work with GPFS filesystems and I have some questions regarding the setup:
1. Do I need to dedicate an entire hard disk if I want to have GPFS on it? Or can I somehow split a disk into 2 virtual disks, and only use 1 for gpfs?
2. If lspv returns... (4 Replies)
Discussion started by: bstring
4 Replies
9. AIX
we have implement GPFS 3.5.0.10 with 4 nodes cluster AIX 6.1 TL8 and they VIO clients , after that we noticed a big delay while we execute any command like mmgetstate -a will take about 2.5 minutes . time mmgetstate -a Node number Node name GPFS state ... (3 Replies)
Discussion started by: thecobra151
3 Replies
10. AIX
Hello Gurus,
Could you please help me out of the difference between GPFS and NFS.
Thanks-
P (1 Reply)
Discussion started by: pokhraj_d
1 Replies
LEARN ABOUT SUSE
image::exiftool::exif
Image::ExifTool::Exif(3) User Contributed Perl Documentation Image::ExifTool::Exif(3)
NAME
Image::ExifTool::Exif - Read EXIF meta information
SYNOPSIS
This module is required by Image::ExifTool.
DESCRIPTION
This module contains routines required by Image::ExifTool for processing EXIF meta information.
AUTHOR
Copyright 2003-2010, Phil Harvey (phil at owl.phy.queensu.ca)
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
REFERENCES
http://www.exif.org/Exif2-2.PDF <http://www.exif.org/Exif2-2.PDF>
<http://partners.adobe.com/asn/developer/pdfs/tn/TIFF6.pdf>
<http://partners.adobe.com/public/developer/en/tiff/TIFFPM6.pdf>
<http://www.adobe.com/products/dng/pdfs/dng_spec.pdf>
<http://www.awaresystems.be/imaging/tiff/tifftags.html>
<http://www.remotesensing.org/libtiff/TIFFTechNote2.html>
<http://www.exif.org/dcf.PDF>
http://park2.wakwak.com/~tsuruzoh/Computer/Digicams/exif-e.html <http://park2.wakwak.com/~tsuruzoh/Computer/Digicams/exif-e.html>
http://www.fine-view.com/jp/lab/doc/ps6ffspecsv2.pdf <http://www.fine-view.com/jp/lab/doc/ps6ffspecsv2.pdf>
<http://www.ozhiker.com/electronics/pjmt/jpeg_info/meta.html>
http://hul.harvard.edu/jhove/tiff-tags.html <http://hul.harvard.edu/jhove/tiff-tags.html>
<http://www.microsoft.com/whdc/xps/wmphoto.mspx>
<http://www.asmail.be/msg0054681802.html>
<http://crousseau.free.fr/imgfmt_raw.htm>
<http://www.cybercom.net/~dcoffin/dcraw/>
<http://www.digitalpreservation.gov/formats/content/tiff_tags.shtml>
<http://community.roxen.com/developers/idocs/rfc/rfc3949.html>
http://tools.ietf.org/html/draft-ietf-fax-tiff-fx-extension1-01 <http://tools.ietf.org/html/draft-ietf-fax-tiff-fx-extension1-01>
ACKNOWLEDGEMENTS
Thanks to Matt Madrid for his help with the XP character code conversions.
SEE ALSO
"EXIF Tags" in Image::ExifTool::TagNames, Image::ExifTool(3pm)
perl v5.12.1 2010-03-12 Image::ExifTool::Exif(3)