Viking PSFEM1xxxGQxxx manual Product Specifications, Performance, 3 Timing Specifications

2 Product Specifications

2.1 Performance

Table 2-1: Maximum Sustained Read and Write Bandwidth

Access Type	VRFEM1xxxGQxxx
Sequential Read, 256K	Up to 197 MB/s
Sequential Write, 256K	Up to 85 MB/s

Notes:

1.Performance measured using IOmeter 06 with queue depth set to 32.

2.Write Cache enabled with DDR cache.

3.Refer to Application Note AN0006 for Viking SSD Benchmarking Methodology.

Table 2-2: Random Read and Write Input/Output Operations per Second (IOPS)

Access Type

Read, 4K

Write, 4K

Notes:

VRFEM1xxxGQxxx

Up to 5270 IOPS

Up to 65 IOPS

1.Performance measured using Iometer 06 with queue depth set to 32.

2.Write Cache enabled with DDR cache.

3.Random IOPS cover the entire range of legal logical block addresses (LBA’s). Measurements are performed on a full drive (all LBA’s have valid content)

4.Performance may vary by NAND type and host.

5.Refer to Application Note AN0006 for Viking SSD Benchmarking Methodology.

6.Data is based on SSD’s using Synchronous NAND devices (ONFI or toggle mode) 32GB TosMLC

2.2Timing

Table 2-3: Timing Specifications

Type	Average Latency
Power-On-to-Ready (POR)	550 ms
Command to DRQ	600 µsec6
Time to Erase (ATA Secure Erase)	9 sec

Notes:

1.Device measured using Drivemaster.

2.Sector Read/Write latency measured up to 2048 block transfers (512B/sector = 1 Block)

3.Queue depth set to 32 for NCQ

4.Sequential IOPS cover the entire range of legal logical block addresses (LBA’s). Measurements are performed on a full drive (all LBA’s have valid content)

5.DRQ (Data Transfer Requested) bit being asserted

6.Data is based on SSD’s using Synchronous NAND devices (ONFI or toggle mode)

Manual	9/11/2014
PSFEM1xxxGQxxx	Viking Technology
Revision B	Page 13 of 33

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