HP ESL E-series Tape Libraries - Manual (Page 16)

Although the library does not require tape cartridges to have barcode labels, properly labeled tape
cartridges and full storage bins speed up the inventory process and greatly improve media
management.
NOTE:
If you have more than 100 unlabeled tape cartridges, your library will hang during inventory or when
you power on the library. When this happens, Going on line appears in the OCP.
Switch for the internal network
CAUTION:
Do not connect this switch to your local LAN. It is for internal library use only. Connecting this switch
to the LAN could cause library components to perform incorrectly or report failures.
The 24-port Ethernet switch provides a private management network to connect the Interface Manager
card to the LTO4 and LTO5 tape drives. You must install one switch in each library that contains LTO4
or LTO5 tape drives.
The ESL library uses a ProCurve Switch 2124. This switch has 24 auto-sensing 10/100Base-TX RJ-45
ports. This switch is a store-and-forward device that offers low latency for high-speed networking.
The switch does not have a power switch; it is powered on when connected to an active AC power
source. The switch automatically adjusts to any voltage between 100-240 volts and either 50 or 60
Hz. There are no voltage range settings required. The reset button is used to reset the switch while it
is powered on. This action executes the self test, and may clear certain error conditions that have
occurred.
1. Ethernet ports
2. Reset button
Figure 5 Ports on the switch for the internal network
.
Tape drives
The ESL E-Series tape library can hold up to 24 tape drives. When fewer than 24 drives are installed
in the library, the tape drives must occupy consecutive drive clusters, beginning with drive cluster 0
(see
Figure 2 ).
Library overview 16