10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
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
2. Linux
When installing Linux, I choose some default setting to use all the disk space.
My server has a single internal 250Gb SCSI disk. By default the install appears to have created 3 logical volumes
lv_root, lv_home and lv_swap.
fdisk -l shows the following
lab3.nms:/dev>fdisk -l
Disk... (2 Replies)
Discussion started by: jimthompson
2 Replies
3. Solaris
Hi,
More a Sun T5220 problem then a Solaris 10 problem, but perhaps someone had a similar issue.
For starters the output with 1 disk in slot 0 of the server.
It points to PhyNum 5, where I would expect PhyNum 0.
{0} ok probe-scsi
MPT Version 1.05, Firmware Version 1.22.00.00
Target... (2 Replies)
Discussion started by: ejdv
2 Replies
4. Solaris
Hi,
I`m on SunFire480R with Solaris 10. Disk in rootdg group failed, so it was replaced. However, I cannot make Veritas initalise the replaced disk:
# vxdctl enable
# vxdisk list c1t0d0s2
Device: c1t0d0s2
devicetag: c1t0d0
type: auto
flags: online error private autoconfig... (1 Reply)
Discussion started by: masloff
1 Replies
5. UNIX for Dummies Questions & Answers
People i have an a storage i create two virtual disk 1 y 2.
In the virtual disk 1 i configure 8 volumes and in the Vd2 configure 5 volumes.
Now i want to create a disk group called Prod2 y Dev2 but when i go to vxdiskadm and i choose add disk o encapusalte when i press list to list the disk... (0 Replies)
Discussion started by: enkei17
0 Replies
6. AIX
Hello guys,
It would be so nice of you if someone can provide me with these informations.
1) My SAN group assigned 51G of LUN space to the VIO server.I ran cfgdev to discover the newly added LUN. Unfortunately most of the disks that are in VIO server is 51G. How would I know which is the newly... (3 Replies)
Discussion started by: solaix14
3 Replies
7. AIX
We have a frame the uses 2 vios that assign disk storage to LPAR's. We have a LPAr with multiple disk and I want to know how do I tell which vio is serving the disk. For example the LPAr has hdisk 0, 1, 2, 3 all the same size. I want to know which vio is serving hdisk0, 1. (4 Replies)
Discussion started by: daveisme
4 Replies
8. Solaris
Dear Solaris Experts,
I am a bit confused about OpenSolaris Hard Drive device mapping. On RedHat Linux based system, an IDE on first channel master drive is mapped as /dev/hda, first channel slave drive will be /dev/hdb, etc.
For (Open)Solaris systems I found it as /dev/rdsk/c3d0p0 :
... (0 Replies)
Discussion started by: Zepiroth
0 Replies
9. Solaris
I have a bogus disk that keeps showing up as failed from vxdisk list
- - disk hpdg failed was:c2t0d11s2
There isnt any c2 devices on the system:
# ls /dev/dsk/c2*
/dev/dsk/c2*: No such file or directory
# ls /dev/rdsk/c2*
/dev/rdsk/c2*: No such file or... (3 Replies)
Discussion started by: kiem
3 Replies
10. Filesystems, Disks and Memory
I've had a VXFS filesystem get corrupted and now it won't mount.
Can I run a fsck -y on the raw disk device or should something be
done within veritas? Veritas does not see the disk at the moment. (2 Replies)
Discussion started by: ozzmosiz
2 Replies
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)
