HP-UX how formating LUN disk

UNIX HP-UX
1

Hello folks,

I have Hp.ux 11.31 and I need know how formating in OS new LUN disk attach to system

e.g. the wwid:

# scsimgr lun_map -D /dev/rdisk/disk4

        LUN PATH INFORMATION FOR LUN : /dev/rdisk/disk4

Total number of LUN paths     = 2
World Wide Identifier(WWID)    = 0x60060e80056541000000654100000000

LUN path : lunpath8
Class                         = lunpath
Instance                      = 8
Hardware path                 = 0/3/0/0/0/0.0x50060e8005654100.0x4003000000000000
SCSI transport protocol       = fibre_channel
State                         = ACTIVE
Last Open or Close state      = ACTIVE

LUN path : lunpath7
Class                         = lunpath
Instance                      = 7
Hardware path                 = 0/3/0/0/0/1.0x50060e8005654110.0x4003000000000000
SCSI transport protocol       = fibre_channel
State                         = ACTIVE
Last Open or Close state      = ACTIVE

like format this LUN 0x60060e80056541000000654100000000 for erase all information,

and later create traditional file system,

thanks you,

2

It depends what you want to do with it. You can choose to use it as either a simple disk, slice it and use it; or you can add it to a volume group and then use LVM to help manage it, which is far more flexible.

Can you show us the output from:-

bdf
ioscan -fnC disk
vgdisplay -v             # might be quite large

I would generally suggest adding the LUN to a volume group, then creating or extending logical volumes and filesystems to suit your needs. What plans do you have for the space?

Kind regards,
Robin

3

No need to delete the data.

If you are not using LVM, a simple newfs command will create filesystem, then you mount it and use it as you see fit.

If you are using LVM, simple do a pvcreate on it, and create a new VG or expand existing.
In case the disk has formerly been used as a HPUX LVM volume the pvcreate command will notify you that it belongs to a volume group. If you are sure it is not actually used, you can use pvcreate -f to force the creation.

If you actually require to delete the data, you can use dd and fill it up with zeros (but i fail to see the point in doing so).

1 Like
4

thanks you explain