04-28-2008
y are you changing the block size to zero?
10 More Discussions You Might Find Interesting
1. Filesystems, Disks and Memory
Hi,
Somehow i have forgotten a comand that displays me the block size of the unix filesystem. Can someone letme know this command
regards
penguin (5 Replies)
Discussion started by: linuxpenguin
5 Replies
2. Filesystems, Disks and Memory
AIX 4.3.3
How can I find the os block size?
How can I change the OS Block Size?
When and where does the os block size get set?
I am running oracle 8.1.7 and am under the impression I need to set my os block size = oracle block size which is 8k.
Any insight on this would be... (1 Reply)
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3. Solaris
how do you determine block size for a file system? In solaris 5.8 (3 Replies)
Discussion started by: csaunders
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4. UNIX for Dummies Questions & Answers
Hello Unix guru's
I want to check my OS Block size for the Solaris 8
Following is one of the line from df -g command.
Can anybody help to interpret the same.
/u03 (/dev/vx/dsk/oradg/vol03): 8192 block size 8192 frag size
205463552 total blocks 50433792... (1 Reply)
Discussion started by: Dilippatel
1 Replies
5. Shell Programming and Scripting
i wrote this code to figure if two identical directories on different devices one on a partition and one on a loop had the same total size for -size +0 file only in recrusive tree form.:
awk '$1 ~ /^-/{total=i;i<=NR;i+=$5;print $0}END{print total}'
file1.... .
the output of du -hb was slightly... (2 Replies)
Discussion started by: moxxx68
2 Replies
6. UNIX for Dummies Questions & Answers
If I execute this command:
$ ls -lt | awk '{print $5}' | sort -nr |head -1
it returns the following value
57441881
If I execute this command:
$ ls -s | sort -nr | head -1 | cut -d" " -f1
it returns the same file but now in block size
112208
Is there... (1 Reply)
Discussion started by: mh53j_fe
1 Replies
7. UNIX for Dummies Questions & Answers
Hi All,
drwxr-xr-x 2 root root 4096 May 31 14:47 test
Please let me know here 4096 indicating what?
Thanks & Regards,
Bache (1 Reply)
Discussion started by: bache_gowda
1 Replies
8. UNIX for Advanced & Expert Users
Hello,
in one default UFS filesystem we have 8K block size (bsize) and 1K fragmentsize (fsize). At this scenary I thought all "FileSytem IO" will be 8K (or greater) but never smaller than the fragment size (1K). If a UFS fragment/blocksize is allwasy several ADJACENTS sectors on disk (in a ... (4 Replies)
Discussion started by: rarino2
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9. Red Hat
Hi Guys,
I am running Linux 2.6.18-164.el x86_64 how do i check the block size?
Thanks in advance... (1 Reply)
Discussion started by: Phuti
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10. HP-UX
Accordingly a lot of manuals - if you have block size 8KB and trying to write a 1KB file to the block, as result you waste 7KB of the block space. But recently I noticed about Fragments of File Block. In same case if you have File Block 8KB and Fragment size 1KB - you can save your block space,... (6 Replies)
Discussion started by: jess_t03
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LEARN ABOUT FREEBSD
archive_write_get_bytes_per_block
ARCHIVE_WRITE_BLOCKSIZE(3) BSD Library Functions Manual ARCHIVE_WRITE_BLOCKSIZE(3)
NAME
archive_write_get_bytes_per_block, archive_write_set_bytes_per_block, archive_write_get_bytes_in_last_block,
archive_write_set_bytes_in_last_block -- functions for creating archives
LIBRARY
Streaming Archive Library (libarchive, -larchive)
SYNOPSIS
#include <archive.h>
int
archive_write_get_bytes_per_block(struct archive *);
int
archive_write_set_bytes_per_block(struct archive *, int bytes_per_block);
int
archive_write_get_bytes_in_last_block(struct archive *);
int
archive_write_set_bytes_in_last_block(struct archive *, int);
DESCRIPTION
archive_write_set_bytes_per_block()
Sets the block size used for writing the archive data. Every call to the write callback function, except possibly the last one, will
use this value for the length. The default is to use a block size of 10240 bytes. Note that a block size of zero will suppress
internal blocking and cause writes to be sent directly to the write callback as they occur.
archive_write_get_bytes_per_block()
Retrieve the block size to be used for writing. A value of -1 here indicates that the library should use default values. A value of
zero indicates that internal blocking is suppressed.
archive_write_set_bytes_in_last_block()
Sets the block size used for writing the last block. If this value is zero, the last block will be padded to the same size as the
other blocks. Otherwise, the final block will be padded to a multiple of this size. In particular, setting it to 1 will cause the
final block to not be padded. For compressed output, any padding generated by this option is applied only after the compression.
The uncompressed data is always unpadded. The default is to pad the last block to the full block size (note that
archive_write_open_filename() will set this based on the file type). Unlike the other ``set'' functions, this function can be called
after the archive is opened.
archive_write_get_bytes_in_last_block()
Retrieve the currently-set value for last block size. A value of -1 here indicates that the library should use default values.
RETURN VALUES
archive_write_set_bytes_per_block() and archive_write_set_bytes_in_last_block() return ARCHIVE_OK on success, or ARCHIVE_FATAL.
archive_write_get_bytes_per_block() and archive_write_get_bytes_in_last_block() return currently configured block size (-1 indicates the
default block size), or ARCHIVE_FATAL.
ERRORS
Detailed error codes and textual descriptions are available from the archive_errno() and archive_error_string() functions.
SEE ALSO
tar(1), libarchive(3), archive_write_set_options(3), cpio(5), mtree(5), tar(5)
BSD
February 2, 2012 BSD