Setting Tape Drive Parameters - Quantum Scalar i500 User Manual

Configuring I/E station slots with cartridges already loaded compromises
CAUTION
data security. First, remove cartridges from the I/E station and then
configure the I/E station slots.
This operation cannot be performed concurrently by multiple administrative
Note
users logged in from different locations. You can access the screen, but you
cannot apply changes while another administrative user is performing the same
operation.
The paths to open the appropriate screens are as follows:
• From the web client, select Setup Wizard > I/E Station Slots.
• From the operator panel, select Setup Wizard > I/E Station Slots.

Setting Tape Drive Parameters

Administrative users can modify certain tape drive parameters. You can set the SCSI ID for a SCSI-attached
tape drive and the loop IDs, topology connection mode, and interface speed for a Fibre-attached tape drive.
You cannot set parameters for SAS tape drives. A SAS tape drive's SAS address is automatically and
uniquely generated based on a unique WWN that the drive receives when it is configured.
If the affected partition is online, it will be taken offline before the parameters are set, and brought back
online after they are set.
Each device on a SCSI bus, including the host bus adapter (HBA) needs to have a unique SCSI ID.
Changing the SCSI ID is necessary when there is a duplicate ID on a single bus. Typically, the HBA SCSI
ID is set to 7. For example, if two tape drives are connected together on the same bus, each tape drive must
have different SCSI IDs and they must be different from the HBA SCSI ID.
For SCSI tape drives, a SCSI ID can be set to a value between 0–15. The library assigns the following
default SCSI IDs to SCSI tape drives:
• 5U control module: 1 and 2
• Each 9U expansion module: 3, 4, 5, and 6
For FC tape drives:
• The loop ID can be set to a value between 0–125. A unique loop ID is selected by default for all FC
tape drives installed in the library. For example, the tape drive installed in the top drive bay of a 5U
control module is assigned a default loop ID of 61. The tape drive installed in the 5U control
module's bottom drive bay is assigned a default loop ID of 63.
If you change the default loop IDs, make sure each FC tape drive with a topology setting of Auto
(LN), Loop (L), or Auto (NL) has a unique loop ID.
• The requested topology connection mode can be set to one of the following:
• Auto (LN) — Auto-configure trying L-Port first
• Loop (L) — Force L-Port
• Point to Point — Force N-Port
• Auto (NL) — Auto-configure trying N-Port first (default)
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