Manual
3/14/2017
PSFEM1xxxxZxxx
Viking Technology
Revision C
Page 14 of 33
www.vikingtechnology.com
Table 2-2: Random Read and Write Input/Output Operations per Second
(IOPS)
Access Type
IOPS
Read, 4K
TBD
Write, 4K
TBD
Notes:
1. Performance measured using Iometer 08 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 Toshiba A19nm NAND devices
2.3 Timing
Table 2-3: Timing Specifications
Type
Average Latency
Power-On-to-Ready (POR)
TBD
Command to DRQ
TBD
Time to Erase (ATA Secure Erase)
TBD
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
2.3.1 STANDBY IMMEDIATE Command
The Power-On-to-Ready time assumes a proper shutdown (power removal
preceded by STANDBY IMMEDIATE command. A STANDBY IMMEDIATE
before power down always performs a graceful shutdown and does not require
the use of the hold-up circuit. Note that SMART attribute 174 "Unexpected Power
Loss" records the number of non-graceful power cycle events.
Table 2-4: STANDBY IMMEDIATE Timing
Power Cycle Endurance
Min
Max
Unit
STANDBY IMMEDIATE to WE completed
-
72.9
ms
Notes:
From Standby Immediate command to NAND Write Protect enable.
