Important Information; Installing The Library; Operating In Gigabit Ethernet Environments; Best Practices For Ip Sans - Spectra Logic T-Series Spectra T50 Release Note

Important Information

These release notes contain the most current available information for the Spectra T50
library (the library). They supplement the Spectra T50 User Guide and other
documentation.
Note:
To make sure that you have the latest version of these release notes,
check the electronic version on the Spectra Logic Web site at
www.spectralogic.com/documents.

Installing the Library

Caution

Operating in Gigabit Ethernet Environments

Best Practices for IP SANs

IP SANs should be based on Gigabit Ethernet 1000BaseT network topography. Since
backups and storage networks create a good deal of traffic, a dedicated subnet should
be utilized. IP SANs should not be sharing bandwidth with regular user LAN traffic.

Best Practices for iSCSI

The best performance with iSCSI is achieved by setting the iSCSI parameters to the
following state:
R2T = No
Immediate Data = Yes or No
The parameters below can be set to the maximum values listed below:
First Burst Length = 128K
Maximum Burst Length = 256K
Maximum Receive Buffer Length = 64K
Best performance is achieved by setting these values to their maximum value.

Microsoft iSCSI Software Initiator

When using the Microsoft iSCSI Software Initiator, Spectra Logic recommends using a
maximum block size limit of 64 Kb. When block sizes larger that 64 Kb are used, the
driver breaks up the blocks into 64-Kb chunks.
The library must be installed on a level surface. If the library
is not level when you begin using it, robotic errors could
result.
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