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T10 PI defined
The T10 Protection Information (T10 PI) is an extension of the SCSI protocol that
protects user data during transfer between a sender and a receiver. Hard disk
drives with T10 PI support are formatted with 520-byte sectors instead of the
typical 512-byte sectors. The extra 8 bytes are used to store data integrity
information. The T10 PI model is an industry standard, and is defined by the T10
Committee. For more details about T10 PI and SCSI, including technical
specifications, see the T10 Committee website (http://www.t10.org).
Inventory checklist
The EXP395 ships with the following items:
v Power cables (2 rack jumper line cords) with an IEC C13 plug on end and an
v Rack-mounting hardware kit (1), including:
v Blank trays (16) (Your storage expansion enclosure might come with up to 16
v 4 Gbps SFPs (2) (already installed in the EXP395 ESM ports)
v Box ID labels (used to label the enclosure IDs on the front of the EXP395)
A rack mounting template and instructions for installing the support rails and the
storage expansion enclosure are provided in "Installing the support rails" on page
24.
To connect your EXP395 to other devices, use the following options:
v IBM SFP module
v IBM LC-LC fibre-channel cable
Note: You must order these options separately.
EXP395 components
The EXP395 has the following removable components. These components, called
field replaceable units (FRUs), are accessible from the front or back of the EXP395.
v Up to 16 4 Gbps fibre channel or SATA Enhanced Disk Drive Modules (E-DDMs)
v Two environmental services modules (ESMs)
v Two power supply and fan units
The hot-swap features of the EXP395 enable you to remove and replace 4 Gbps
fibre-channel or SATA E-DDMs, power supply and fan units, and ESMs, without
turning off the storage expansion enclosure. You can maintain the availability of
your system while a hot-swap device is removed, installed, or replaced.
Enhanced Disk Drive Modules (E-DDMs)
The hot-swap drive bays that are accessible from the front of your storage
expansion enclosure are shown in Figure 1 on page 4.
IEC C14 plug on the other end
– Rails (2) (right and left assembly)
– M5 black hex-head slotted screws (12)
– Washers (8)
SATA or Fibre channel E-DMMs.)
3
Chapter 1. Introduction
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