03-14-2009
hdparm + Inappropriate ioctl for device
Hi All,
Am finding performance of my SD card using hdparm.
Code:
hdparm -tT /dev/BlockDev0
/dev/BlockDev0:
Timing cached reads: 1118 MB in 2.00 seconds = 558.61 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate
ioctl for device
Timing buffered disk reads: 14 MB in 3.13 seconds = 4.47 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate
ioctl for device
Am not aware of "HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device". What actually makes it to occur?? What does this problem mean? How to resolve it??
Thanks in advance.
Amio
10 More Discussions You Might Find Interesting
1. Filesystems, Disks and Memory
Hi,
We are running a perl script to upload some data using SQL* Loader. We pipe the data in a http request to SQL*Loader which loads the data to the database. We encounter the error "Inappropirate ioctl for device" when we try to upload huge data. Any solution would be greatly appreciated.... (4 Replies)
Discussion started by: tojaiganesh
4 Replies
2. UNIX for Dummies Questions & Answers
When I try to format a slice in Solaris 10 I get the follow error :confused: :
-bash-3.00# mkfs /dev/dsk/c1d0s5 18877824
Can not determine partition size: Inappropriate ioctl for device
Some format command output:....
AVAILABLE DISK SELECTIONS:
0. c1d0 <DEFAULT cyl 38735 alt 2... (0 Replies)
Discussion started by: spoonman
0 Replies
3. UNIX for Dummies Questions & Answers
Hello,
I have a cron entry:
59 23 * * * . $HOME/.profile;mydate=`date '+%Y%m%d'`;mv filename filename_$mydate
Which works fine interactively, but gives me the following error when it runs in cron:
Your "cron" job on servername
. $HOME/.profile;mydate=`date '+
produced the... (4 Replies)
Discussion started by: steelrose
4 Replies
4. Solaris
When I try to format a slice in Solaris 10 I get the follow error :
-bash-3.00# mkfs /dev/dsk/c1d0s5 18877824
Can not determine partition size: Inappropriate ioctl for device
Some format command output:....
AVAILABLE DISK SELECTIONS:
0. c1d0 <DEFAULT cyl 38735 alt 2 hd 64 sec 63>... (2 Replies)
Discussion started by: spoonman
2 Replies
5. Shell Programming and Scripting
Dear all,
Problem goes like this:
I have a shell script which when run manually runs perfectly.
When same script is executed through a job schdeduler I get an error as Inappropriate ioctl for device and the script fails.
This problems seems quite guiling to me.
Any clues are heartly... (11 Replies)
Discussion started by: RishiPahuja
11 Replies
6. Filesystems, Disks and Memory
Hi All,
Am finding performance of my SD card using hdparm.
hdparm -tT /dev/BlockDev0
/dev/BlockDev0:
Timing cached reads: 1118 MB in 2.00 seconds = 558.61 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate
ioctl for device
Timing buffered disk reads: 14... (0 Replies)
Discussion started by: amio
0 Replies
7. Shell Programming and Scripting
Hello everyone
I am finishing a script allowing me to purge logs on multiple servers, i have one last pb with the ssh command.........it is throwing me the following error :
tcgetattr: Inappropriate ioctl for device (full screen in attached file 1, full script in attached file 2)
It... (15 Replies)
Discussion started by: jimmy75_13
15 Replies
8. UNIX for Advanced & Expert Users
Hi!
I am getting a nohup issue on mac osx while trying to start a process through nohup in the startup script.
nohup: can't detach from console: Inappropriate ioctl for device
Please help!
Thanks,
Allan. (0 Replies)
Discussion started by: jacki
0 Replies
9. UNIX for Dummies Questions & Answers
Hi,
ssh -q -t -l $usr $host bin/test.sh
I am using above command to run script remotely. script is working without any issues. but I am getting "tcgetattr: Inappropriate ioctl for device" message on console.
plz help how can I avoid this message.
Thanks
Moved thread from Emergency... (1 Reply)
Discussion started by: Kri
1 Replies
10. Shell Programming and Scripting
Sample program tty, this will be get called from my script test_script.
#include <stdio.h>
#include <unistd.h>
#define TTY_NAME_MAX 32
#define STDIN_FILENO 0 /* Standard input. */
int main(void) {
int ret = 0;
char local_device_file;
printf("\npid =... (7 Replies)
Discussion started by: Gajendra_PH
7 Replies
PTM(4) BSD Kernel Interfaces Manual PTM(4)
NAME
ptm -- pseudo-terminal multiplexor device
SYNOPSIS
pseudo-device pty [count]
DESCRIPTION
The ptm driver is the backend for the /dev/ptm device. It supports three ioctl(2)s. The first is TIOCPTMGET, which allocates a free pseudo-
terminal device, sets its user ID to the calling user, revoke(2)s it, and returns the opened file descriptors for both the master and the
slave pseudo-terminal device to the caller in a struct ptmget. This struct has the following content:
struct ptmget {
int cfd;
int sfd;
char cn[16];
char sn[16];
};
where cfd and sfd contain the master resp. slave device's file descriptor and cn and sn the corresponding paths in the file system.
The /dev/ptmx device supports two more ioctl(2)s, TIOCGRANTPT, which is used by grantpt(3), TIOCPTSNAME, which is used by ptsname(3).
The ptm device is included with the pseudo-device pty(4). It can be disabled by adding ``options NO_DEV_PTM'' to the kernel configuration.
FILES
/dev/ptm ptm access device
/dev/ptmx ptm cloning device, used to implement Unix98 ptys
SEE ALSO
grantpt(3), openpty(3), posix_openpt(3), ptsname(3), unlockpt(3), pty(4)
HISTORY
The /dev/ptm device appeared in OpenBSD 3.5 and was ported to NetBSD 3.0.
BSD
November 12, 2005 BSD