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тАО09-20-2011 04:14 AM
тАО09-20-2011 04:14 AM
i can't find any perl-func which shows the size of a block device ?
does a perl-func exist ?
Example: LVOL Size of /dev/vgfs/filesystem is 256 MB.
or other ways to parse one of the following commands in a SHELL ?
commands easy to parse are "/usr/sbin/fstyp -v" or "df -g" ?
# bdf /filesystem
Filesystem kbytes used avail %used Mounted on
/dev/vgfs/filesystem
2097152 30912 2050104 1% /filesystem
# df -g /dev/vgfs/filesystem
/filesystem (/dev/vgfs/filesystem) :
8192 file system block size 8192 fragment size
262144 total blocks 258280 total free blocks
256263 allocated free blocks 74816 total i-nodes
64544 total free i-nodes 64544 allocated free i-nodes
1073807412 file system id vxfs file system type
0x11 flags 255 file system name length
/filesystem file system specific string
# df -i /dev/vgfs/filesystem
/filesystem (/dev/vgfs/filesystem) : 74816 total i-nodes
64544 free i-nodes
10272 used i-nodes
13 % i-nodes used
# df -P /dev/vgfs/filesystem
Filesystem 512-blocks Used Available Capacity Mounted on
/dev/vgfs/filesystem 4162032 61824 4100208 2% /filesystem
# /usr/sbin/fstyp -v /dev/vgatvmv3tfs/io_src_test_s
vxfs
version: 7
f_bsize: 8192
f_frsize: 8192
f_blocks: 262144
how can i dectect, if LVOL SIZE differs from BLOCK SIZE ?
- lvdisplay
- fstyp -v
- compare the results ?
regards
Solved! Go to Solution.
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тАО09-20-2011 05:04 AM
тАО09-20-2011 05:04 AM
Re: how can i get size of block device (perl, shell script)
@support_billa wrote:
i can't find any perl-func which shows the size of a block device ?
does a perl-func exist ?
<snip>
# /usr/sbin/fstyp -v /dev/vgatvmv3tfs/io_src_test_s
vxfs
version: 7
f_bsize: 8192
f_frsize: 8192
f_blocks: 262144
how can i dectect, if LVOL SIZE differs from BLOCK SIZE ?
- lvdisplay
- fstyp -v
- compare the results ?
It appears that you are interested in comparing the VxFS preferred system block size ('bsize') versus the fundamental block size ('frsize').
I can think of two options: (1) query and compare the results in a script, yourself; or (2) use the Perl 'Filesys::Statvfs' module from CPAN which leverages the underlying system call 'statvfs(2)'.
See the 'statvfs(2)' manpages for more information, too.
Regards!
...JRF...
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тАО09-20-2011 05:19 AM
тАО09-20-2011 05:19 AM
Re: how can i get size of block device (perl, shell script)
i want to get the size of a block_device , maybe in KB
i found in this forum now , that "bdf" and "df" differs , right ?
LVOL SIZE of /dev/vgfs/filesystem is maybe 512 MB but
the TOTAL BLOCK SIZE is 256 MB (anybody forget to extend filesystem ).
so i found to find out , what is the size of the block device.
in the example:
bdf shows output over 2 lines :
# bdf /filesystem
Filesystem kbytes used avail %used Mounted on
/dev/vgfs/filesystem
2097152 30912 2050104 1% /filesystem
# df -g /dev/vgfs/filesystem
262144 total blocks 258280 total free blocks
then i compare "TOTAL BLOCK SIZE" and "LV_SIZE" ?
- but how can i get the "TOTAL BLOCK SIZE" ?
- also how can i get free usage in percent ?
regards
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тАО09-20-2011 06:15 AM
тАО09-20-2011 06:15 AM
Re: how can i get size of block device (perl, shell script)
hello,
what i am now detect, when "fragment size" and "file system block size " are equal, "bdf" and "df" differs :
here "bdf" and "df" differs :
df -g /filesystem
/filesystem (/dev/vgfilesystem/filesystem) :
8192 file system block size 8192 fragment size
262144 total blocks 258280 total free blocks
256263 allocated free blocks 74816 total i-nodes
64544 total free i-nodes 64544 allocated free i-nodes
1073807412 file system id vxfs file system type
0x11 flags 255 file system name length
/filesystem file system specific string
bdf /filesystem
Filesystem kbytes used avail %used Mounted on
/dev/vgfilesystem/filesystem
2097152 30912 2050104 1% /filesystem
here "bdf" and "df" is ok :
df -g /dev/vgfilesystem/filesystem_ok
/filesystem_ok (/dev/vgfilesystem/filesystem_ok) :
8192 file system block size 1024 fragment size
524288 total blocks 287654 total free blocks
269777 allocated free blocks 75892 total i-nodes
71912 total free i-nodes 71912 allocated free i-nodes
1073807364 file system id vxfs file system type
0x10 flags 255 file system name length
/filesystem_ok file system specific string
bdf /dev/vgfilesystem/filesystem_ok
Filesystem kbytes used avail %used Mounted on
/dev/vgfilesystem/filesystem_ok
524288 236634 269676 47% /filesystem_ok
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тАО09-20-2011 07:45 AM
тАО09-20-2011 07:45 AM
Re: how can i get size of block device (perl, shell script)
@support_billa wrote:
- but how can i get the "TOTAL BLOCK SIZE" ?
- also how can i get free usage in percent ?
Hi:
You can use the output of 'bdf to get the total block size in kbytes. You can also use 'df -k' to see the KB allocated and the percentage used. The free usage percentage is ( 100 - percent_used ).
Regards!
...JRF...
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тАО09-20-2011 07:52 AM
тАО09-20-2011 07:52 AM
Solution
@support_billa wrote:what i am now detect, when "fragment size" and "file system block size " are equal, "bdf" and "df" differs
No, you are misreading this.
For your filesystem with 8192 for the fragment size:
262144*8192/1024 = 2097192
....which is exactly what 'bdf' reports.
For your filesystem with a 1024 fragment size:
there are 524,288 total blocks shown which is exactly what 'bdf' reports.
1024 = 1KB, or the units used by 'bdf'
Regards!
...JRF...
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тАО09-20-2011 11:03 PM
тАО09-20-2011 11:03 PM
Re: how can i get size of block device (perl, shell script)
There are perl modules to do that, but they may be too old to do it very accurate:
тАв Filesys::Df ( https://metacpan.org/module/Filesys::Df )
тАв Filesys::DiskFree ( https://metacpan.org/module/Filesys::DiskFree )
тАв HPUX::FS ( https://metacpan.org/module/HPUX::FS )
тАв HPUX::LVM ( https://metacpan.org/module/HPUX::LVM )
but they might be too old to be accurate enough. YMMV
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тАО09-21-2011 12:56 AM
тАО09-21-2011 12:56 AM
Re: how can i get size of block device (perl, shell script)
about :
For your filesystem with 8192 for the fragment size:
262144*8192/1024 = 2097192
...which is exactly what 'bdf' reports.
For your filesystem with a 1024 fragment size:
there are 524,288 total blocks shown which is exactly what 'bdf' reports.
1024 = 1KB, or the units used by 'bdf'
for my understanding :
when "fragment size" and "file system block size " are equal :
i have to use : 262144*8192/1024 = 2097192 ( 1024 = 1KB )
when "fragment size" and "file system block size "differs :
the "file system block size " is the exact value !
regards
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тАО09-21-2011 01:39 AM
тАО09-21-2011 01:39 AM
Re: how can i get size of block device (perl, shell script)
more questions :
1. best way to parse "bdf", when it reports is over 2 lines :
2. questions to "df" and "bdf"
1. best way to parse "bdf", when it reports is over 2 lines :
example of "bdf"
Filesystem kbytes used avail %used Mounted on
/dev/vgfilesystem/filesystem_ok
524288 236634 269777 47% /filesystem_ok
/dev/vg00/lvol6 2097152 835448 1253024 40% /tmp
AWK, when it reports is over 2 lines:
local_fs=/tmp
bdf ${local_fs} | awk -v FSYS="${local_fs}" '
NF>=6 && $6 ~ FSYS { printf "%-26s %10s %10s %10s %5s %s\n",$1,$2,$3,$4,$5,$6 }
NF==1 { l=$1 }
NF==5 && $5 ~ FSYS { printf "%-26s %10s %10s %10s %5s %s\n",l,$1,$2,$3,$4,$5 }'
2. questions to "df" and "bdf"
i have a large fs and "df" reports 100 % usage , "bdf" 99 % usage :
Filesystem kbytes used avail %used Mounted on
/dev/vgfsdepot/lvol1
227540992 225622902 1802529 99% /filesystem_large
questions to the output below:
df -P should show the size of the file system, but it is not the value of "bdf", must i know the block_size ?
only df -g reports the same value of "bdf".
what is the best way to parse informations of filesystem ? "bdf" or "df" or to install the perl modules ?
for my issue , i need 2 functions like "get_size_of_fs" and "get_percent_of_fs_usage"
man of "df -P"
-P Report the name of the file system, the size of
the file system, the number of blocks used, the
number of blocks free, the percentage of blocks
used and the directory below which the file system
hierarchy appears.
# df -P /filesystem_large
Filesystem 512-blocks Used Available Capacity Mounted on
/dev/vgfsdepot/lvol1 454850862 451245804 3605058 100% /filesystem_large
# df -Pk /filesystem_large
Filesystem 1024-blocks Used Available Capacity Mounted on
/dev/vgfsdepot/lvol1 227425431 225622902 1802529 100% /filesystem_large
man of "df -g"
-g Report the entire structure described in statvfs(2).
df -g /filesystem_large
/filesystem_large (/dev/vgfsdepot/lvol1) :
8192 file system block size 1024 fragment size
227540992 total blocks 1918090 total free blocks
1802529 allocated free blocks 2495396 total i-nodes
479522 total free i-nodes 479522 allocated free i-nodes
1074069505 file system id vxfs file system type
0x10 flags 255 file system name length
/filesystem_large file system specific string
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тАО09-21-2011 02:20 AM
тАО09-21-2011 02:20 AM
Re: how can i get size of block device (perl, shell script)
Hello H.Merijn ,
i installed for tests all your listed perl modules :
@ Filesys::Df ( https://metacpan.org/module/Filesys::Df )
works perfect
@ Filesys::DiskFree ( https://metacpan.org/module/Filesys::DiskFree )
works ok, but shows a lot of warnings !
@ HPUX::FS ( https://metacpan.org/module/HPUX::FS )
@ HPUX::LVM ( https://metacpan.org/module/HPUX::LVM )
HPUX::LVM doesn't work , because show error of "vgdisplay -v" ...
so Filesys::Df is ok and i find about to install it !
regards
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тАО09-21-2011 04:46 AM
тАО09-21-2011 04:46 AM
Re: how can i get size of block device (perl, shell script)
@support_billa wrote:more questions :
1. best way to parse "bdf", when it reports is over 2 lines :
You seem to have solved this. Bill Hassell has a very nice script that handles 2-line 'bdf' output and adds lots of useful information in addition to improving the output formatting. See this thread for a copy:
@support_billa wrote:more questions :
2. questions to "df" and "bdf"
i have a large fs and "df" reports 100 % usage , "bdf" 99 % usage :
Different tools often use different methods to deduce things. You are quibbling over small differences. What exactly is the problem you are attempting to solve? It seems that this is becoming an academic exercise rather than one to solve a real-world problem.
That said, look at the 'df' and 'bdf' manpages. From 'df(1M)', "The df command displays the number of free 512-byte blocks and free inodes available for file systems by examining the counts kept in the superblock or superblocks." In contrast, from 'bdf(1M)', "Non-HFS file systems may have other items not accounted for by this command."
Regards!
...JRF...
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- bdfmegs
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тАО09-21-2011 07:03 AM
тАО09-21-2011 07:03 AM
Re: how can i get size of block device (perl, shell script)
@Bill Hassell has a very nice script that handles 2-line 'bdf' output
@_________________________________________________________________________________________________________
@ http://h30499.www3.hp.com/t5/System-Administration/bdfmegs-version-5-8-available/m-p/4673433/highlig...
thank you
i have a large fs and "df" reports 100 % usage , "bdf" 99 % usage :
sorry, maybe i am quibbling over small differences.
i was looking about a command to save easy in a shell variable the value of the block device size .
i thought , this would be a short task , i know "bdf" and "df" and i hope that a perl function will exist ...
perl module exists, but not in a core module , so i read "bdf" and "df" man pages and then i detected those
difference above :-( i asked also my colleagues , they had also no explanation.
From 'df(1M)' : there are a lot of options, which i didn't know it before and i read it exactly and only "df -g"
shows exact the same value (without multiply , divide ..) like "bdf"
you explain the difference very good , so i understand it know.
finaly , i also don't like to write a degree dissertation about those commands !
so i will stop it now and thanks to your great response
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тАО09-21-2011 04:32 PM
тАО09-21-2011 04:32 PM
Re: how can i get size of block device (perl, shell script)
Hello,
Why reinvent the wheel when you can use simle tools native to HP-UX:
# /opt/ignite/bin/print_manifest
...
File System layout
LVM Device file mount point size fs type
/dev/vg00:
/dev/vg00/lvol1 /stand 1792 vxfs
/dev/vg00/lvol2 swap 4096
/dev/vg00/lvol3 / 95584 vxfs
/dev/vg00 unallocated 0
/dev/vg01:
/dev/vg01/lvol10 /guests1 149984vxfs
/dev/vg01 unallocated 3584
Or,
# /usr/sam/lbin/lvlist -p
/dev/vg00/lvol1|/dev/vg00|vxfs|1792|0|LVM|/stand|266240|available/syncd|1
/dev/vg00/lvol2|/dev/vg00|swap/dump|4096|0|LVM|-|131330|available/syncd|1
/dev/vg00/lvol3|/dev/vg00|vxfs|95584|0|LVM|/|266240|available/syncd|1
/dev/vg01/lvol10|/dev/vg01|vxfs|149984|0|LVM|/guests1|266240|available/syncd|1
Or,
# /usr/sam/lbin/vginfo -v
vg00:available,read/write@:255:16:3:1:0:32:3737:101472:0:0:3171:0:0:/dev/vg00/lvol1@available/syncd@1792@56@1,/dev/vg00/lvol2@available/syncd@4096@128@1,/dev/vg00/lvol3@available/syncd@95584@2987@1:/dev/disk/disk12_p2@@available@3171@0::LVM
vg01:available,read/write@:16:16:1:1:0:32:4799:153568:3584:112:4799:0:0:/dev/vg01/lvol10@available/syncd@149984@4687@1:/dev/disk/disk31@@available@4799@112::LVM
slvm_dsk1:available,shared,client,read/write@brk13,brk11:2047:2048:0:1:0:4:51200:204788:204788:51197:51197:0:0::/dev/disk/disk13@@available@51197@51197::LVM
All these commands can pe parsed and proper information extracted easily.
VK2COT
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тАО09-21-2011 10:57 PM
тАО09-21-2011 10:57 PM
Re: how can i get size of block device (perl, shell script)
I'm in the middle of a discussion with the author of the "Disk Info" utility di which is also available for HP-UX..
This utility works on HP-UX as well as on all other Unix-like OS's and gives the output the same on allOS's.
I've talked him into implementing a new -c option to generate the output as csv, so it is extremely easy to parse.
If you are interested, keep your eyes open on http://www.gentoo.com/di/
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тАО09-21-2011 11:57 PM
тАО09-21-2011 11:57 PM
Re: how can i get size of block device (perl, shell script)
hello VK2COT,
@ Why reinvent the wheel when you can use simle tools native to HP-UX
@ All these commands can pe parsed and proper information extracted easily.
i have been working with HP-UX for many years and i have never heard about those commands !!!!
These are great commands and easy to parse !
Does a white paper exists about those commands ? I didn't find man pages !
i use for example :
/usr/sam/lbin/fslist -p /tmp
and i can interprete many columns , but when i have informations what column include what value it is easier !
regards
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тАО09-22-2011 03:47 AM
тАО09-22-2011 03:47 AM
Re: how can i get size of block device (perl, shell script)
Hello,
It is my pleasure to share information.
Yes, I know that these commands are not known to majority of users :)
I am a Senior Instructor in HP Education and IT Architect in Australia/New Zealand
(teaching all sorts of HP-UX, Solaris, LInux (Red Hat, SUSE and Ubuntu), 3PAR,
ServiceGuard, Data Protector, EVA and Ibris X9000 NAS courses. I am also
a Wordwide Unix Ambassador and Unix Profession Leadership team at HP
so it is lot of fun for me to work on unsual things.
Unfortunately, there are no manuals on these rare commands that I listed yesterday..
Some of the commands in ./usr/sam/lbin and Shell scripts and the only way to
learn what they do is to look into them.
Let me show some other intresting commands in this directory:
# paginglist
/dev/vg00/lvol2|dev|4194304|4.0 GB|0|0.0 KB|4194304|4.0 GB|0%|0|-|1|no|now|
reserve|reserve|0|0.0 KB|3667436|3.5 GB|-3667436|-3667436`KB||0||0|no|now|
total|total|4194304|4.0 GB|3667436|3.5 GB|526868|514.5 MB|87%|0|0|0|no|now|
# importablevgs
1:/dev/disk/disk11_p2
And then new way to check ServiceGuard:
# /opt/OV/bin/ovclusterinfo -a
This command supports other types of clusters:
- Microsoft Clustering Services (Windows)
- MC/ServiceGuard (HP-UX)
- VERITAS Cluster Server (Solaris)
- Sun Cluster (Solaris)
- TRU64 Cluster (TCR)
- Red Hat Advanced Server (RHAS)
- HACMP (AIX)
- Unknown.
If you want to learn more of the "unusual" commands take a look at my
Operations Acceptance Testing Perl script for HP-UX:
http://www.circlingcycle.com.au/Unix-sources/
Cheers,
VK2COT
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- 3PAR
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тАО10-01-2011 06:54 AM
тАО10-01-2011 06:54 AM
Re: how can i get size of block device (perl, shell script)
After maybe 40 mails with the author of di, I am glad to say that the just release new version 4.29 works on all HP-UX that I could access, ranging from 10.20 +DAportable to 11.31 with gcc/64
I have uploaded the depots to my site which should be in sync within 20 hours, so feel free to grab your copy. Some examples:
$ di -l -c s,m,b,u,v,p,T /dev/vg00/root,/,"400.0M","333.2M","66.3M",83%,vxfs /dev/vg00/data,/data,"12.0G","11.3G","0.6G",95%,vxfs /dev/vg00/home,/home,"512.0M","265.1M","246.9M",52%,vxfs /dev/vg00/opt,/opt,"6.5G","6.1G","0.4G",95%,vxfs /dev/vg00/pro,/pro,"24.0G","22.2G","1.8G",93%,vxfs /dev/vg00/stand,/stand,"304.0M","183.2M","119.9M",61%,vxfs /dev/vg00/tmp,/tmp,"2.0G","0.8G","1.2G",40%,vxfs /dev/vg00/usr,/usr,"5.3G","2.2G","3.1G",42%,vxfs /dev/vg00/var,/var,"4.5G","1.8G","2.7G",41%,vxfs /dev/vg00/wrk,/wrk,"1.0G","0.3G","0.6G",37%,vxfs $ di -c >di.csv $ env DBI_DSN="dbi:CSV:f_ext=.csv/r" qs -L f di w p '>' 90 SCHEMA: merijn, TABLE: di [.] select s, m, b, u, v, p, t from di where p > '90' s |m |b |u |v |p |t /dev/vg00/data|/data |12.0G|11.3G|0.6G|95%|vxfs /dev/vg00/opt |/opt |6.5G |6.1G |0.4G|95%|vxfs /dev/vg00/pro |/pro |24.0G|22.2G|1.8G|93%|vxfs $
qs is a perl script that acts as a command-line SQL query interpreter (qs = quick select), and used here just to demonstrate how easy the output of the new -c option for di is parsable (as a database).