HP Enterprise EML E-Series LTO4 or Later Tape Drive Replacement Instructions

IMPORTANT: Do not connect the MGMT
port or internal network switch to the public
or site LAN.
11. Verify that the FC port A LED on the new tape
drive is green when connected to a switch and
linked.
12. Close the back doors of the library.
13. Ensure that the tape drive has the latest firmware
for correct operation. If necessary, upgrade the
drive firmware using the Command View TL
firmware upgrade wizard or the Interface
Manager card CLI. See the HP Interface Manager
and Command View TL User Guide for detailed
procedures on upgrading drive firmware.
NOTE: If the Interface Manager is running
2.61 or older firmware, connect to the
Interface Manager card CLI using telnet,
once logged into the CLI use the sync sec
command to force the mapping changes
into the new drive.
NOTE: After a drive replacement or
firmware upgrade, you may be required
to run specific OS commands from the
HPUX host in order to verify the drive path.
See “Ensure the new drive is CLAIMED and
online” (page 12).
Ensure the new drive is CLAIMED and
online
In an HPUX 11.31 (or newer) environment, there is a
new SCSI software behavior which identifies a device
through its World Wide Identification (WWID). When
drive firmware is changed, or the drive is replaced, it
is possible that the WWID information is also changed.
This will cause HPUX SCSI stack to stop all IO
communication to the device. In this case, an ioscan
shows the device in a NO_HW state, and the new
WWID must be validated on the HPUX host side to
allow SCSI IO communication. If this situation occurs
or is suspected, view the file /var/adm/syslog/
syslog.log and look for the message similar to this
example:
Evpd inquiry page 83h/80h
failed or the current page
83h/80h data do not match
the previous known page
83h/80h data on LUN id 0x0
probed beneath the target
path (class = tgtpath,
instance = 3). The lun path
is (class = lunpath,
instance = 0). Run 'scsimgr
replace_wwid' command to
validate the change.
If this message appears, perform the following
procedure for HPUX host commands.
Page 12