The FFD meets the performance requirements, as specified in Table 1.
Table 1: FFD 3.5” Ultra320 SCSI Transfer Rates and IOPS
Operation
Burst Rate (MB/Sec)
Sustained
(1)
Rate
1MB Blocks (MB/sec)
IOPS
Read 320.0
40.0
(2)
1080
Write 320.0
40.0
(2)
3500
Notes: 1.
Transfer of aligned sequential blocks between the target and the initiator.
2.
Sustained read/write rates depend on the measurement utility and the block size.
4.1.4. Access
Time
Maximum access time is < 0.02 msec (20
µ
sec).
4.1.5. Start-Up
Time
The required period for the FFD to mount the media and respond to media-related commands
(read, write, verify) depends on the media capacity (Table 2).
Table 2: FFD 3.5” Ultra320 SCSI Mount Times
Capacity (GB)
Time to Mount Media (Seconds, after Low-Level Format)
2 0.2
16 1.0
64 4.1
112 7.3
160 10.4
176 11.6
During the start-up process, all SCSI commands involving media access return the following
status conditions:
•
CHECK CONDITION, Sense Key NOT READY
and
•
Extended Sense Key LOGICAL UNIT IN PROCESS OF BECOMING READY.
FFD supports the Start Stop Unit command, which is commonly used by the host to await the
completion of the start-up process.
4.1.6. Seek
Time
The FFD has no seek time.
9
Product Specification and User Manual FFD 3.5" Ultra320 SCSI
43-PS-0305-00 Rev. 2.0
