Viking Technology Technology Computer Drive PSF1XXXXGXXXX Manuel D’Utilisation
Manual
1/2/2014
PSFS1XXXXGXXXX
Viking Technology
Revision B7
Page 18 of 60
www.vikingtechnology.com
2.3 Timing
Table 2-3: Timing Specifications
Type
Average Latency (ms)
Write Cache Enabled
Power On to Ready (POR)
<1
Reset to Ready
<2
Command to DRQ
<1
Time to Erase (ATA Secure Erase)
4 second (entire drive)
Notes:
1. Based on MLC NAND
2. Device measured using IOMETER 08, Queue depth set to 32 for NCQ
3. Sector Read/Write latency measured up ton 4K block size (512B/sector = 1 Block), random access
4. Sequential IOPS cover the entire range of valid logical block addresses (LBA’s). Measurements are
1. Based on MLC NAND
2. Device measured using IOMETER 08, Queue depth set to 32 for NCQ
3. Sector Read/Write latency measured up ton 4K block size (512B/sector = 1 Block), random access
4. Sequential IOPS cover the entire range of valid logical block addresses (LBA’s). Measurements are
performed on a full drive (all LBA’s have valid content)
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.
The timings for when a STANDBY IMMEDIATE is issued to when it is completed
are shown in the table below.
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.
The timings for when a STANDBY IMMEDIATE is issued to when it is completed
are shown in the table below.
Table 2-4: STANDBY IMMEDIATE Timing
Power Cycle Endurance
Min
Max
Unit
STANDBY IMMEDIATE to WE completed
-
40
ms