topic Re: Total Physical Disk storage space Size ? in Operating System - HP-UX

Total Physical Disk storage space Size ?

Gulam Mohiuddin — Mon, 02 Oct 2000 20:26:46 GMT

Over period of time we have added losts of new Physical disks of different sizes in our V 2500 System which run HP-UX 11.

Now I want to know how to find out exactly how much physical disk storage space we have and how much is mirrored or in logical volumes

Thanks,

Gulam.

Re: Total Physical Disk storage space Size ?

Rick Garland — Mon, 02 Oct 2000 20:34:55 GMT

Various commands such as vgdisplay, lvdisplay, etc, can help you in this quest. If you have perl 5 installed, I have attached a perl script that will detail the info for you as well.

It will tell you how much total space is available, how much is used, to which logical volumes, what is stripped and/or mirrored and to what, what the alt links are, etc...

Re: Total Physical Disk storage space Size ?

James R. Ferguson — Tue, 03 Oct 2000 01:04:03 GMT

Hi:

There are two ways to obtain this information. The first is through SAM's Disks and Filesystems.

The second way is the direct, command approach and uses 'pvdisplay' to query physical disks; 'vgdisplay' to query volume groups; and 'lvdisplay' to query logical volumes.

# pvdisplay -v /dev/dsk/c?t?d?

This command displays information about the physical disk -- physical extent size and the number of physical extents allocated and available. If the MirrorUX product has been installed, pvdisplay returns information about the the number of extents that are not current.

# vgdisplay -v /dev/vg??

The vgdisplay command returns information about a volume group. The command tells what physical volumes make up the group, the total physical extents comprising all physical volumes in the volume group, the maximum number of physical volumes allowed in the group (Max PV), and the maximum number or limit of physical extents that can be allocated from any of the physical volumes in the volume group (Max PE per PV). If MirrorUX software is installed, and mirroring enabled, vgdisplay also returns information about the logical volume status such as available/stale or available/syncd.

# lvdisplay /dev/vg??/lvol?

When MirrorUX is installed, lvdisplay provides information about the the state of the logical volume -- available/stale or available/syncd, etc. along with the number of mirrors (0,1,2). lvdisplay also returns the size of the logical volume in megabytes, the number and size of stripes (if used), and the allocation policy for each extent (contiguous, strict, etc.).

For a full description of each command, see the man 1M pages for pvdisplay, vgdisplay and lvdisplay. See also, the other LVM commands referenced by these pages -- e.g. pvcreate, vgcreate, vgextend, vgreduce, vgremove, lvcreate, lvextend, lvreduce & lvremove.

...JRF...

Re: Total Physical Disk storage space Size ?

Andy Monks — Tue, 03 Oct 2000 06:25:56 GMT

You may also want to get a copy of Xvg. It draws you a picture of your disc layout. It should be available on the HP web somewhere.

Re: Total Physical Disk storage space Size ?

Sanjay Dudeja — Tue, 03 Oct 2000 07:20:22 GMT

The best way to find out disk size is by using diskinfo command.

eg /usr/sbin/diskinfo /dev/rdsk/c0t11d0

Re: Total Physical Disk storage space Size ?

CHRIS_ANORUO — Tue, 03 Oct 2000 09:40:27 GMT

If you don't have perl 5 installed, try this attached script from Andreas Voss.
You can run a printout of you LVM configurations from this script.

Re: Total Physical Disk storage space Size ?

Andy Monks — Tue, 03 Oct 2000 09:48:03 GMT

You can get Xvg from :-

ftp://contrib:9unsupp8@hprc.external.hp.com/sysadmin/xvg

Re: Total Physical Disk storage space Size ?

Carlos Fernandez Riera — Tue, 03 Oct 2000 12:55:39 GMT

This is my script.

I always do links from oracle datafiles to raw devices.

Re: Total Physical Disk storage space Size ?

Carlos Fernandez Riera — Tue, 03 Oct 2000 12:56:17 GMT

This is my script.

I always do links from oracle datafiles to raw devices.