11-07-2008
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
what are the ways to check the disc usage by users. I mean to say how to find the biggest space consumer. Regards. (4 Replies)
Discussion started by: asutoshch
4 Replies
2. UNIX for Dummies Questions & Answers
Im using solaris 8 on a Sunfire 280r. Is there a command to show you how much disk space is being used in gigabytes or megabytes. I dont think theres an option for this using the df command. not for solaris anyway.
thanks (3 Replies)
Discussion started by: lewisoco
3 Replies
3. UNIX for Dummies Questions & Answers
how to i find out the disk usage on a server.
say in windows examples its like C:/ D:/ and checking out the disk space.
how can i find in Unix.
can i just use df -k or should i go to each volume group and find that way.
plz respond (2 Replies)
Discussion started by: karthikosu
2 Replies
4. Shell Programming and Scripting
Hi ,..
I am working on a script like....
it has to monitor the disk usage (df -H) and if usage is above 95% then it has to return the particular mount point details...
i am in confusion to use awk or sed.....
regards
rrs (1 Reply)
Discussion started by: rrs
1 Replies
5. Shell Programming and Scripting
Hi,
I want to retrieve the directory in the shell script that is using maximum space on the disk.I was using du command but it displays all the directories that are using the space on the disk.How can retrieve the only directory which uses the maximum space on the disk??
Thanks in advance.
... (4 Replies)
Discussion started by: harikamamidala
4 Replies
6. Shell Programming and Scripting
fdisk -l
shows me the total disk size.
How can I see, how much disk space is free or available? (5 Replies)
Discussion started by: tjay83
5 Replies
7. HP-UX
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
Discussion started by: alert0919
3 Replies
8. Solaris
Hi,
I want to monitor the current cpu usage, monitor usage , disk I/o and network utlization for solaris using SNMP.
I want the oids for above tasks.
can you please tell me that
Thank you (2 Replies)
Discussion started by: S_venkatesh
2 Replies
9. UNIX for Dummies Questions & Answers
Hi,
I have always felt problems using commands to check disk usage, or I should say I might not be using the commands properly.
dfspace and free are 2 most frequent command that I use, but the data that it echoes is not comprehandable atleast to me.:wall::wall::wall::wall::wall:
I want... (4 Replies)
Discussion started by: TH3M0Nk
4 Replies
10. UNIX for Beginners Questions & Answers
HI I am Trying to edit the below code to send email every day with difference of disk utilized in for last 24 hours but instead getting same usage everyday. can you please help me to point out where my calculation is going wrong. Thank you.
=================
#!/bin/bash
TODAY="at $(date... (0 Replies)
Discussion started by: Mi4304
0 Replies
LEARN ABOUT HPUX
prealloc
prealloc(2) System Calls Manual prealloc(2)
NAME
prealloc - preallocate fast disk storage
SYNOPSIS
DESCRIPTION
is used to preallocate space on a disk for faster storage operations.
fildes is a file descriptor obtained from a or system call for an ordinary file of zero length. It must be opened writable, because it
will be written to by size is the size in bytes to be preallocated for the file specified by fildes. At least size bytes will be allo-
cated. Space is allocated in an implementation-dependent fashion for fast sequential reads and writes. The EOF in an extended file is
left at the end of the preallocated area. The current file pointer is left at zero. The file is zero-filled.
Using on a file does not give the file an attribute that is inherited when copying or restoring the file using a program such as or (see
cp(1) and tar(1)). It simply ensures that disk space has been preallocated for size bytes in a manner suited for sequential access. The
file can be extended beyond these limits by operations past the original end of file. However, this space will not necessarily be allo-
cated using any special strategy.
RETURN VALUE
Upon successful completion, returns 0; otherwise, it returns -1 and sets to indicate the error.
ERRORS
fails and no disk space is allocated if any of the following conditions are encountered:
[EBADF] fildes is not a valid open file descriptor opened for writing.
[EDQUOT] User's disk quota block limit has been reached for this file system.
[EFBIG] size exceeds the maximum file size or the process's file size limit. See ulimit(2).
[ENOSPC] Not enough space is left on the device to allocate the requested amount; no space was allocated.
[ENOTEMPTY] fildes not associated with an ordinary file of zero length.
EXAMPLES
Assuming a process has opened a file for writing, the following call to preallocates at least 50000 bytes on disk for the file represented
by file descriptor outfd:
WARNINGS
Allocation of the file space is highly dependent on current disk usage. A successful return does not tell you how fragmented the file
actually might be if the disk is nearing its capacity.
AUTHOR
was developed by HP.
SEE ALSO
prealloc(1), creat(2), dup(2), fcntl(2), open(2), prealloc64(2), read(2), ulimit(2), write(2).
prealloc(2)