Mounting and Unmouting the external Harddisk or Harddrive on HP-UX Server

login as root and run:

#ioscan -fnC disk To check for new hardware

o/p will be like this

Class     I  H/W Path     Driver S/W State   H/W Type     Description

disk      8  255/1/0.1.0  sdisk   CLAIMED     DEVICE       Seagate FreeAgent Go (External hardrive)

                                                 /dev/dsk/c1t1d0    /dev/rdsk/c1t1d0

/dev/dsk/c1t1d0 is called LUN Paths.

Make directory where you will mount external harddisk or harddrive

#cd /u01

#mkdir segate

#pwd

/u01/segate

Mounting the external Harddisk or Harddrive

#mount /dev/dsk/c1t1d0 /u01/segate

Unmounting the external Harddisk

#umount /u01/segate

Issues While Mounting the external Hard Disk.

While mounting if you get error

UX:vxfs mount: ERROR: V-3-21268 /dev/dsk/c1t1d0 is corrupted. needs checking

 #fsck -F vxfs /dev/dsk/c1t1d0

If this command gives error or after doing it you are still getting the same error, then try with full fsck. ie.

#fsck -F vxfs -o full,nolog /dev/dsk/c1t1d0

If this command does not solve your purpose then try the following one (performs all the log replys)

#fsck -F vxfs -o full -y /dev/dsk/c1t1d0

If you run ioscan -fnC disk and you are not getting LUN path for it.

#ioscan -m lun  (Display lun to lunpath mapping)

Issues while unmounting the external harddisk


# umount /mountpoint    e.g # umount /backup/segate
umount: cannot unmount /dev/disk/disk23 : Device busy
umount: return error 1.

First Run fuser then try umount
$ fuser -kuc /mountpoint e.g # fuser -kuc /backup/segate

#umount /backup/segate