Datasheet

Datasheet 06/04/2012
PSFEM2XXXGXXXX Viking Technology
Revision A2 Page 5 of 46
www.vikingtechnology.com
Viking’s solid state drives are available in Enterprise and Client versions:
Enterprise – An Enterprise SSD contains hardware and firmware that detect and
manage power failures. This allows the drive to flush the controller cache and
harden data to NAND flash. No data is lost or corrupted.
Client – A Client SSD does not include power failure detection or management
features. MLC NAND, as opposed to SLC NAND, can become corrupted if
power is removed during a write, also known as lower page corruption.
Therefore, a Client SSD using MLC NAND is well-suited in a system that already
manages power fail events, allowing for graceful SSD shutdown. Accordingly,
system support should include issuing a Standby Immediate command to the
SSD while maintaining power for at least 50ms.
If a Client drive with MLC NAND is used in a system that does not manage power
failures and shutdowns, there is a small chance of data corruption. Viking Client
SSDs take sophisticated hardware and firmware measures to prevent or mitigate
such issues making the chance of corruption very small.
If the SSD controller detects data corruption, the drive will be locked. The only
way to recover the drive is to return it to the factory for reprogramming; all data
will be lost.