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4.0
Performance characteristics
This section provides detailed information concerning performance-related characteristics and features of Enterprise Capacity 3.5 HDD v5 drives.
4.1
Internal drive characteristics
Drive capacity
6TB models
Read/write data heads
11
Bytes/track
2,179,072
Bytes/surface
1,300,000
Tracks/surface (total)
33,900
Tracks/in
375,000
Peak bits/in
2,226,000
Areal density
802
Internal data rate
2546
Disk rotation speed
7200
Avg rotational latency
4.16
4.1.1
Format command execution time
512N-byte sectors (minutes)
Maximum (with verify)
Maximum (without verify)
Execution time measured from receipt of the last byte of the Command Descriptor Block (CDB) to the request for a Status Byte Transfer to the
Initiator (excluding connect/disconnect).
When changing sector sizes, the format times shown above may need to be increased by 30 minutes.
4.1.2
General performance characteristics
Minimum sector interleave
Maximum Internal data rate*
Sustained transfer rate
SAS Interface maximum instantaneous transfer rate
Logical block sizes
512 (default), 520, 524 or 528.
Read/write consecutive sectors on a track
Flaw reallocation performance impact (for flaws reallocated at format time using the spare
sectors per sparing zone reallocation scheme.)
Average rotational latency
*Assumes no errors and no relocated logical blocks. Rate measured from the start of the first logical block transfer to or from the
host.
** MiB/s x 1.048 = MB/s
Seagate Enterprise Capacity 3.5 HDD v5 SAS Product Manual, Rev. E
6TB models
1077
539
(formatted, rounded off value)
Bytes (average, rounded off values)
MB (unformatted, rounded off values)
Tracks (user accessible)
TPI (average)
BPI
Gb/in2
Mb/s (max)
RPM
ms
1 to 1
2.32 Gb/s
109 to 205 MiB/s **
1200MB/s* per port
(dual port = 2400MB/s*)
Yes
Negligible
4.16ms
15
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