mount-point on 11.31

[Nido]

Hi,

Please refer the below output, mount-point /home is mounted from /dev/dsk/c6t6d0.
I don't see any entry under /etc/lvmtab for c6t6d0.
There is no problem accessing data from /home.

Is this new in 11.31 or some configuration information is missing?

# pvdisplay /dev/dsk/c6t6d0
pvdisplay: Couldn't find the volume group to which
physical volume "/dev/dsk/c6t6d0" belongs.
pvdisplay: Cannot display physical volume "/dev/dsk/c6t6d0".
# uname -a
HP-UX XXXXX B.11.31 U 9000/800 3960050394 unlimited-user license
# bdf /home
Filesystem kbytes used avail %used Mounted on
/dev/dsk/c6t6d0 17783240 14977241 2639276 85% /home

Thanks,

[Torsten.]

dev/dsk/c6t6d0 17783240 14977241 2639276 85% /home

Somebody was using the whole disk without any volume manager (LVM) - thats why you can't see anything in /etc/lvmtab.

This is not new to 11.31, but IMHO just a bad configuration.

[Torsten.]

The next bad thing is that the legacy device was used instead of the new agile device like /dev/disk/disk#.

Whoever did this config is maybe not this familiar with hp-ux.

[Pete Randall · Accepted solution]

In fact, I would suggest backing up /home and then redefining the disk to LVM with pvcreate, vgextend, lvcreate and restore.


Pete

[Nido]

Hi,

I agree to have LVM rather than having whole disk configuration. I've never seen whole disk config in my setup before, always worked on LVM.

Other than LVM flexibilty, Can I see any performance enhancement if I move to LVM?
BTW: We're working on a case where this disk is having slight degraded performance.
Please suggest.


HP-UX System Management Homepage (Text User Interface)
SMH->Disks and File Systems->Disks->Details
-----------------------------------------------------------------------------------------------------------------------------
Detail View of Disk: 64000/0xfa00/0xe
-----------------------------------------------------------------------------------------------------------------------------
LUN H/W Path 64000/0xfa00/0xe
Persistent Device File /dev/disk/disk29
Legacy Device File(s) /dev/dsk/c6t6d0;
Legacy H/W Path(s) 1/0/0/2/0.6.0;
Device Health online
Device Identifier
Alias
World Wide ID 0x000000fffe000000
Size 16.9594 GB
Block Size (bytes) 512
Capacity (blocks) 35566480
Use vxfs
VG Name /home
Device Type direct access
Instance Number 29
Total Path Count 1
Device Class disk
Driver esdisk
State ONLINE
Vendor "HP 18.2G"
Product "ST318404LC "
Serial Number "3BT2LJLR "
Firmware Revision "HP03"
SCSI Protocol Revision 2