Sata Defined; T10 Pi Defined; Inventory Checklist - IBM System Storage DS5020 Installation, User's, And Maintenance Manual

SATA defined

The Serial Advanced Technology Attachment (SATA) interface offers increased data
rate performance over Parallel Advanced Technology Attachment (ATA), while
maintaining the benefits of ATA. SATA is designed to overcome the performance
barriers that have been forecasted for current parallel technologies while
maintaining the cost-efficiency of Parallel ATA. SATA specifications allow for thinner,
more flexible cables, and lower pin counts. It also enables easier, more flexible
cable routing management and the use of smaller connectors than is possible with
the existing Parallel ATA technology.
The Serial ATA Working Group introduced the first SATA specification, Serial ATA
1.0, in 2001 (http://www.serialata.org).

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

After you unpack the DS5020, verify that you have the following items.
Note: Depending on your DS5020 order, your shipping box might contain additional
v Hardware
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IBM System Storage DS5020 Storage Subsystem: Installation, User's, and Maintenance Guide
materials not listed in the following checklist. Review the inventory checklist
included in the DS5020 shipping box for any additional parts, and use that
checklist in combination with the following information.
– E-DDMs or blank trays (16) (Your storage subsystem might come with up to
16 E-DDMs.)
– RAID controllers (2)
– AC power supply and fan units (2)
– Fiber-optic cables (2)
– Battery units (2)
– Power cables (2 rack jumper line cords)
– Diagnostic wrap plug/coupler (1)
– Serial cable adapter (1)
– Rack-mounting hardware kit (1), including:
- Rails (2) (right and left assembly)
- M5 black hex-head slotted screws (12)
- M4 screws (4)
- Washers (8)
– 8 Gbps SFPs (4 or 8)
Note: The number of 8 Gbps SFPs depends on the storage subsystem
configuration. The SFPs are preinstalled in the DS5020 ports.
– 4 Gbps SFPs (4)