When I started mirroring the VG00 on my new disk, the system had already 2 disk in mirrored state ... At that time my mirror value was 1, so while mirroring 3rd disk have used -m 2 .. and my # lvlnboot -v shows all boot order without error .
Then have removed my 3rd disk directly.. without spilting or reducing vg ..
After that had ran above cmnds .. and get stuck .. As I understand now current state is my all mirrored got failed .. only 1 active boot disk is there ... it may be bcz have done wrong vg reduce or lvreduce ..
## Now what I want is to .. remove what error am getting then remirror this OS on second disk .. to safely handover this server ...
##########
Code:
lvreduce -m 1 -A n -k /dev/vg00/lvol${i} /dev/dsk/c2t0d0
-A n ::
Do not backup configuration changes after lvreduce ..
-k:: IS to be used when your pv is missing (i.e disk is not there u had removed )
Hi Experts,
I have configured A D40 Array. There is an faulty disk which is not part of an raid volume but shows fault in the diagnostics.
pdisk15 U0.1-P1-I1/Q1-W40AA83CC2400D
SSA160 Physical Disk Drive ( MB)
Is there a way to stop this... (2 Replies)
We have a filesystem which contains 8 hard disks but i am facing disk I/O issue becuase data is not spreading across all the disks.Is there any way i can check how data is spreading and any parameter we need to change to spread ata across all disks.
OS--AIX 5.3 (1 Reply)
Hi,
Recently i came across a disk that seems to be faulty and need help. I have gathered some information by running below commands and any help on how to solve this will be great.
# uname –a
SunOS XYZ 5.7 Generic_106541-16 sun4u sparc SUNW,Ultra-4
#df -k
Filesystem kbytes used... (3 Replies)
Hi,
Have mirrored the primary disk to 3 .
Server and OS:
# uname -a
HP-UX pdwp1s B.11.11 U 9000/800 118434630 unlimited-user license
# model
9000/800/L3000-7x
# strings /etc/lvmtab
/dev/vg00
+F@<
/dev/dsk/c1t2d0
/dev/dsk/c2t2d0
/dev/dsk/c2t0d0
But now I have only 1 disk... (5 Replies)
Hello,
I'm new to this forum and as you will see from my question I'm new to UNIX as well.
One of our costumers has HP rx4640 running on UNIX with two 300GB hot-swappable disks that are mirrored. They reported to us that one of the disks is faulty and they want us to take care of it. Below is... (16 Replies)
Hi Guys,
One of two disks in my solaris machine has failed, the name is disk0, this is SUN physical sparc machine
But I work remotely, so people working near that physical server are not that technical, so from OS command prompt can run some command to bink faulty disk at front panel of Server.... (9 Replies)
Hi guys,
I would like to ask your opinion about my theory, how to fix my broken LVM without risking any data loss.
I use Archlinux at home. I just love this distro, even it gives me a lots of work (particularly after system updates).
Basic system spec:
AMD FX(tm)-6100 Six-Core Processor... (1 Reply)
Scenario1:
VG00 lvm,not mirrored,2 disk of 36GB vg size
VG00 size is under 30G.
Is possible to remove a disk of 36GB and replace "on fly"
with a disk of 300GB on VG00?
Thanks (6 Replies)
I plugged both power cables in both power supply. When I unplugged each power cable one by one, the SPARC T4-1 machine keep running. However, show faulty command shows below message. (I have also attached the picture of both power supply)
-> show faulty
Target ... (1 Reply)
Discussion started by: z_haseeb
1 Replies
LEARN ABOUT HPUX
vxdmp
vxdmp(7) Miscellaneous Information Manual vxdmp(7)NAME
vxdmp - Veritas Volume Manager multipathing disk devices
DESCRIPTION
Multipathed disk devices in Veritas Volume Manager (VxVM) represent virtual devices with one or more physical access paths to a physical
disk. The Multipathing feature provides disk access reliability by dynamically switching to another physical path if there is a path fail-
ure.
Every disk that is visible to VxVM is represented by a multipath device node in the /dev/vx/dmp and /dev/vx/rdmp directories for block type
and character type interfaces. A simple disk is represented by a multipath device having one physical path, whereas a disk that is part of
a multiported disk array is represented by a multipath device with many device access paths depending upon the type of the disk array.
VxVM uses standard disk device naming conventions to name multipath devices. For example, if there is a disk device with two physical
access paths such as c1t0d0 and c2t0d0, the multipathing device node for this particular disk is created under /dev/vx/dmp and /dev/vx/rdmp
as c1t0d0 or c2t0d0.
To provide multipathing, VxVM maintains an internal database of all the multipathed devices detected by the system and their respective
paths. The database is created at system boot time. When disks are added or removed from the system, VxVM provides support to reconfigure
the multipath device database to reflect new states of the hardware, while the system is online.
To reconfigure the DMP database, run ioscan followed by insf, and then invoke vxdctl enable (see vxdctl(1M)).
The various access paths to a multipathed device can be seen by using a vxdisk command (see vxdisk(1M)). These commands open the multi-
pathing configuration device /dev/vx/dmpconfig to obtain the required information about the various paths to a multipathed device and their
states.
VxVM also provides the facility to enable or disable a disk controller. This feature can be used to stop all I/Os through a particular con-
troller to perform maintenance operations on it. Use the vxdmpadm command to do this and also perform other operations on the multipath
device database.
VxVM can provide notification about events that occur in the DMP database due to a change in hardware. See the vxnotify(1M) man page for
more information.
VxVM is capable of multipathing both Active/Active and Active/Passive disk arrays.
FILES
/dev/vx/dmp Multipathing block devices.
/dev/vx/rdmp Multipathing character devices.
SEE ALSO ioctl(2), vxdctl(1M), vxdisk(1M), vxdmpadm(1M), vxnotify(1M)VxVM 5.0.31.1 24 Mar 2008 vxdmp(7)
02-09-2012
