Periphery ETERNUS LT40 S2 tape library
U41861-J-Z126-1-76 53
Dokuschablonen 19x24 Version 7.4us für FrameMaker V7.x vom 09.02.2010 © cognitas GmbH 2001-2010
Dokuschablonen 19x24 Version 7.4us für FrameMaker V7.x vom 09.02.2010 © cognitas GmbH 2001-2010
29. June 2015 Stand 16:47.07 Pfad: P:\FTS-BS\Server\SE-Server\SE-Doku\1303909_BA_Additional\prod_e\ba_addon.k05
Logical partitioning
From the BS2000 viewpoint, a tape library with two drives looks like two separate devices;
it is “logically partitioned” in X2000. This partitioning is performed automatically and cannot
be configured. The slots are assigned to the devices as evenly as possible, the last
(second) drive possibly being assigned one slot more.
Example
Partitioning an ETERNUS LT40 S2 tape library with magazines and two drives:
The slots shown against a white background are assigned to the first drive. The slots
shown against a blue background are assigned to the second drive. The cleaning slot
(mailslot 3) is not permanently assigned.
In BS2000 mode it must be borne in mind that the two tape devices use the same robot to
load and unload the cartridges; wait times can occur here. The two logical devices are also
always in the same operating status. It is not possible to operate one device in Random
Mode and the other in Sequential Mode.
Generally most settings are valid for both logical devices.
In the OCP menu Configuration > Library Settings you set the drive (Master Drive) via which
the library commands are passed. This setting is important when a drive (or cable) fails:
● When the master drive fails, the robot can no longer be controlled (and the device
consequently quits Random Mode).
Mailslot 3 Slot 7 Slot 8 Slot 9
Mailslot 2 Slot 4 Slot 5 Slot 6
Mailslot 1 Slot 1 Slot 2 Slot 3
Table 5: Left-hand magazine
Slot 21 Slot 20 Slot 19 Slot 18
Slot 17 Slot 16 Slot 15 Slot 14
Slot 13 Slot 12 Slot 11 Slot 10
Table 6: Right-hand magazine
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