Spectra Logic T-Series Spectra T200 User Manual page 134

Chapter 7 — Using Partitions
Component
Storage Pool:
Number of
Chambers
Drives Assigned
to this Partition
F-QIPs or E-QIPs
Direct-Attach Drives
Drive Visibility
Addressing
E-QIP Ports
Addressing
F-QIP Ports
SCSI IDs
a. If you are configuring only one partition in your library, use all remaining licensed chambers. If you are creating multiple partitions,
be sure to reserve enough chambers to configure the other partitions.
134
User Guide
Description
Determine the number of chambers to be used for the partition's storage pool.
Each chamber holds a single TeraPack magazine or RXT media pack.
The size of the partition's storage pool is the total number of chambers you
want to assign to the partition MINUS the number of chambers you reserved
for the partition's entry/exit pool.
If you licensed all of the chambers in the library and want to use a cleaning
partition, you must also subtract the number of chambers used for the cleaning
partition from the total number of assigned to the storage pool.
Determine which drives to assign to the partition. Only drives that are already
installed in the library and are compatible with the media type you select are
available.
If the partition includes a QIP, decide whether to assign one or both of the QIP's
ports as the control path to the library's robotic transporter.
Note: If you plan to select both ports, make sure that the software used with the
partition supports using multiple control paths and that the ports are cabled
correctly.
If a partition includes direct-attach drives, decide which drive will handle the
robotic control commands from the host.
Note: Direct-attach SCSI drives require a bus extension module to connect to
the host's SCSI bus. RXT drives cannot be used in a direct-attach partition.
If the partition uses a QIP, decide whether the drives connected to the QIP are
visible (accessible) to external hosts through one or both of the QIP's interface
ports.
Note: If you select both, make sure that the backup software can handle server
contention over drive use resulting from multiple paths to a drive.
Each E-QIP port is identified using a network address. Decide whether the
network address will be static or assigned through a DHCP server on the
network. For static addressing, you must specify the IP address, subnet mask,
and gateway used by the E-QIP.
Depending on your environment, you may need to configure digests, CHAP
authentication, and iSNS.
Note: Values for digests, CHAP, and iSNS are set in the Exporting iSCSI Settings
screen.
Each F-QIP port is identified using a worldwide name (WWN) on a Fibre
Channel network or SAN. This WWN is based on the soft address assigned to
the QIP when it attaches to the network or its fixed Loop ID if soft addressing is
not used.
Select one of the following combinations:
Soft Address and Fabric.
Loop ID, a value between 0 and 125, and Loop/Point-to-Point.
Soft Address or Use Loop ID, a value between 0 and 125, and Auto-negotiate.
Each direct-attach SCSI drive must be assigned a SCSI ID. The SCSI ID must be
unique for the SCSI bus to which the drive is connected. Valid SCSI IDs on a
wide SCSI bus are 0 – 15.
a
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