Spectra Logic T380 - Manual (Page 25)

Complete the Procedure Testing the Drive
April 2013 Drive Installation or Replacement—Spectra T200, T380, T680, T950, and T-Finity Library
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As illustrated in Figure 20 , a QIP provides any-to-any connectivity to the
SCSI drives it controls. Every drive (target) is potentially visible to servers
through both ports on the F-QIP. This permits flexibility in configuring
which servers can access which drives (target visibility).
For example, an F-QIP-based partition can be configured so that Drive 1
and Drive 2 are only accessible through Port A and Drive 3 and Drive 4 are
only accessible through Port B. In this configuration, Drive 1 and Drive 2
can only be accessed by the host connected to Port A; Drive 3 and Drive 4
can only be accessed by a host connected to Port B. In a more complex
configuration, the F-QIP can be configured so that all drives are visible
through both ports. Such a configuration is typically used in a shared
storage environment or an environment with failover capabilities.
Testing the Drive
1. Power on and restart the host computer, if you powered it off.
2. Determine whether your backup software and drive are
communicating properly.
a. Use the software to write several megabytes of data using the newly
installed drive.
b. Perform a comparison check on the backup data to confirm that it
was written correctly.
Figure 20 QIP-attached SCSI drive connectivity.
Drive 3
Drive 1 Drive 2
Internal cabling
Fiber port (Fibre Channel or Gigabit Ethernet)
QIP
Drive Bay Assembly (DBA)
Drive 4
Important
If drives are visible to multiple servers, your backup software must support this
visibility. Otherwise server contention for a single drive can create network and
system problems.