Veritas mirrors volumes residing on encapsulated disks, that are grouped in disk groups.
If those disks are part of a volume manager disk group, and have dynamic volume(s) on them, you could verify if the volume(s) are mirrored.
The following outputs indicate that my "ufs" volume, that is part of "testdg" disk gropup is mirrored across disks "hds9500-alua0_75" and "hds9500-alua0_77"
Disk "hds9500-alua0_83" holds the DRL log for fast mirror resync.
You could use vxdisk list for the complete list of disk groups.
Hello All. I have a question concerning VFS (Veritas File System).
I are attempting to upgrade Solaris 2.6 UFS to the VFS (Veritas File System). We use Veritas to perform all our backups. I have been unable to find any documentation on SUN's or Veritas's website. The server's are SUN 4500 and... (3 Replies)
hi
if anyone has docs (corporate internals on how to setup vcs mfor example, especially with Veritas VM, pleas let me know..i need exposure experience in this area of Enterprise Administration
thanks
jasmine (SCSA & MCSE) (2 Replies)
vxdg -g mktdg adddisk mktdg02=c0b0t3d0
i know this command adds c0b0t3d0 to the disk group mktdg but what i dont know is what the significance of mktdg02 is.
i mean, what is it? what does it stand for?? (1 Reply)
Can someone tell me what command it is to list the disk in a specified disk group. I dont want to see disks in all groups, just the disk in a specified group. (2 Replies)
hi every one ,
i know how to add swap space in ufs file system.
but i m facing problem in veritas file system .
i wants to know how will i create swap or add new swap space in existing swap space .
Note: disk under veritas volume manager control .
please help me to solve this issue . (5 Replies)
Dear All,
In our environment we use SDS (Solaris Vlume Manager) for root file system.So, I am wondering why Veritas is not use for the same.
root@abc # df -kh
Filesystem size used avail capacity Mounted on
/dev/md/dsk/d10 30G 22G 6.9G 77% /
/devices ... (3 Replies)
Hi all, I'm fairly new to Veritas on Linux machines and have a disk group with 64 disks that we are migrating to 64 new disks. This means I'll be mirroring the old to the new. So my question is this - is there a way to mirror a specific volume to a range of disks as opposed to listing each disk by... (0 Replies)
hi all
i have a DLT tape in that tape backup is there is in veritas volume format and i want to restore it in ufs file system how can i do it?
right now i don't have veritas file system setup. i have only ufs file sysytem
please help some production data is to be restore. (3 Replies)
Hi all
I have a DLT tape in that tape backup is there is in veritas volume format and i want to restore it in ufs file system how can i do it?
right now i don't have veritas file system setup. i have only ufs file sysytem
please help some production data is to be restore.
backup was taken... (0 Replies)
Discussion started by: nikhil kasar
0 Replies
LEARN ABOUT HPUX
vxiod
vxiod(1M)vxiod(1M)NAME
vxiod - start, stop, and report on Veritas Volume Manager I/O threads
SYNOPSIS
vxiod
vxiod [-f ] [set count]
DESCRIPTION
The vxiod utility starts, stops, or reports on Veritas Volume Manager (VxVM) I/O kernel threads. An I/O thread provides a process context
for performing I/O in VxVM.
When the vxio module is loaded, 16 I/O threads are created, plus 2 threads per additional CPU for a system with more than 8 CPUs, up to a
maximum of 64 threads. At least one I/O thread must be running while the vxio module is loaded, and the number of I/O threads cannot be
forced to zero.
When invoked with no arguments, vxiod prints the current number of I/O threads to the standard output.
The number of threads that is required for handling I/O requests depends on the system load and usage. If volume recovery seems to proceed
more slowly at times, it may be possible to improve its performance by increasing the number of I/O threads up to a maximum of 64.
KEYWORDS
set When invoked with the set keyword, vxiod creates the number of I/O threads specified by count. If more volume I/O threads exist
than are specified by count, the excess processes terminate. If more than the maximum number(64) are specified, the requested
number is silently truncated to that maximum.
OPTIONS -f This option has no effect from release 5.0 onward. The number of I/O threads cannot be reduced to zero.
EXIT CODES
The vxiod utility prints a diagnostic on the standard error, and exits if an error is encountered. If an I/O request occurs within a I/O
thread, the state of that I/O request is not reflected in the exit status for vxiod. Otherwise, vxiod returns a non-zero exit status on
error.
Usage errors result in an exit status of 1 and a usage message. If the requested number of threads cannot be created, the exit status is
2, and the number of threads that were successfully started is reported. If any other error occurs, the exit status is 3.
FILES
/dev/vx/iod The device used to report on and start volume I/O threads.
NOTES
Veritas Volume Manager I/O threads cannot be killed directly through the use of signals.
Depending on the operating system, VxVM I/O threads may not appear in the list of processes that is output by the ps command. The number
of I/O threads that is currently running can be determined by running vxiod.
SEE ALSO fork(2), ps(1), vxconfigd(1M), vxdctl(1M), vxintro(1M), vxio(7), vxiod(7)VxVM 5.0.31.1 24 Mar 2008 vxiod(1M)