Hi,
Somebody can help me to retrieve the command to use in Solaris 8 to display the space free on a Virtual disk created by VVM ?
Thanks very much,
Fabien Renaux (1 Reply)
Hi all,
I have a problem with vxvm volume which is mirror with two disks. when i am try to increase file system, it is throwing an ERROR: can not allocate 5083938 blocks, ERROR: can not able to run vxassist on this volume.
Please find a sutable solutions.
Thanks and Regards
B. Nageswar... (0 Replies)
hy guys
I am new at this thread , i have installed sf 5.0 and wanted to encapsulate root disk but when i get to optionn to enter private region i get this error:
Enter desired private region length
(default: 65536) 512
VxVM ERROR V-5-2-338
The encapsulation operation failed with the... (2 Replies)
Hi all,
Anybody know the URLs of veritas volume manager disk problems,volume problems,root disk problems ...etc.
Please share the URL's. i really appreciate for cooperation.
regards
krishna (4 Replies)
Can somebody kindly help me to determine which one i should choose to better manipulate OS volume.
RAID manager or veritas volume manager?
Any critical differences between those two?
Thanks in advance. (5 Replies)
I have a machine (5.10 Generic_142900-03 sun4u sparc SUNW,Sun-Fire-V210) that we are upgrading the storage and my task is to mirror what is already on the machine to the new disk. I have the disk, it is labeled and ready but I am not sure of the next steps to mirror the existing diskgroup and... (1 Reply)
Hi Experts,
I wanted to extend a veritas file system which is running on veritas cluster and mounted on node2 system.
#hastatus -sum
-- System State Frozen
A node1 running 0
A node2 running 0
-- Group State
-- Group System Probed ... (1 Reply)
Discussion started by: Skmanojkum
1 Replies
LEARN ABOUT LINUX
vcs
VCS(4) Linux Programmer's Manual VCS(4)NAME
vcs, vcsa - virtual console memory
DESCRIPTION
/dev/vcs0 is a character device with major number 7 and minor number 0, usually of mode 0644 and owner root.tty. It refers to the memory
of the currently displayed virtual console terminal.
/dev/vcs[1-63] are character devices for virtual console terminals, they have major number 7 and minor number 1 to 63, usually mode 0644
and owner root.tty. /dev/vcsa[0-63] are the same, but using unsigned shorts (in host byte order) that include attributes, and prefixed
with four bytes giving the screen dimensions and cursor position: lines, columns, x, y. (x = y = 0 at the top left corner of the screen.)
When a 512-character font is loaded, the 9th bit position can be fetched by applying the ioctl(2) VT_GETHIFONTMASK operation (available in
Linux kernels 2.6.18 and above) on /dev/tty[1-63]; the value is returned in the unsigned short pointed to by the third ioctl(2) argument.
These devices replace the screendump ioctl(2) operations of console(4), so the system administrator can control access using file system
permissions.
The devices for the first eight virtual consoles may be created by:
for x in 0 1 2 3 4 5 6 7 8; do
mknod -m 644 /dev/vcs$x c 7 $x;
mknod -m 644 /dev/vcsa$x c 7 $[$x+128];
done
chown root:tty /dev/vcs*
No ioctl(2) requests are supported.
FILES
/dev/vcs[0-63]
/dev/vcsa[0-63]
VERSIONS
Introduced with version 1.1.92 of the Linux kernel.
EXAMPLE
You may do a screendump on vt3 by switching to vt1 and typing cat /dev/vcs3 >foo. Note that the output does not contain newline charac-
ters, so some processing may be required, like in fold -w 81 /dev/vcs3 | lpr or (horrors) setterm -dump 3 -file /proc/self/fd/1.
The /dev/vcsa0 device is used for Braille support.
This program displays the character and screen attributes under the cursor of the second virtual console, then changes the background color
there:
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/vt.h>
int
main(void)
{
int fd;
char *device = "/dev/vcsa2";
char *console = "/dev/tty2";
struct {unsigned char lines, cols, x, y;} scrn;
unsigned short s;
unsigned short mask;
unsigned char ch, attrib;
fd = open(console, O_RDWR);
if (fd < 0) {
perror(console);
exit(EXIT_FAILURE);
}
if (ioctl(fd, VT_GETHIFONTMASK, &mask) < 0) {
perror("VT_GETHIFONTMASK");
exit(EXIT_FAILURE);
}
(void) close(fd);
fd = open(device, O_RDWR);
if (fd < 0) {
perror(device);
exit(EXIT_FAILURE);
}
(void) read(fd, &scrn, 4);
(void) lseek(fd, 4 + 2*(scrn.y*scrn.cols + scrn.x), 0);
(void) read(fd, &s, 2);
ch = s & 0xff;
if (attrib & mask)
ch |= 0x100;
attrib = ((s & ~mask) >> 8);
printf("ch='%c' attrib=0x%02x
", ch, attrib);
attrib ^= 0x10;
(void) lseek(fd, -1, 1);
(void) write(fd, &attrib, 1);
exit(EXIT_SUCCESS);
}
SEE ALSO console(4), tty(4), ttyS(4), gpm(8)COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2007-12-17 VCS(4)