STEC s840 Enterprise SAS SSDs

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This article contains detailed information on STEC s840 Enterprise SAS SSDs (STEC ZeusIOPS Enterprise SAS MLC SSDs).

IOPS diagram taken from the STEC s840 Enterprise SAS SSDs TKperf test report (PDF)

General information

TKperf test report

STEC s840 Enterprise SAS SSDs TKperf Testreport

Models

SSD Capacity
(net)
Capacity
(gross)
Spare Area
(GB and % in add.
to net cap.)
Flash-Chips Endurance Throughput IOPS
(max. random IOPS performance)
Read Write Read Write
(on first
8 GiB)
Write
(on whole
capacity)
S840E200M2 (form. Z16IZF2E-200UCV) 200 GB unknown unknown unknown 3,65 PB[1] up to MB/s up to 300 MB/s up to 75.000 n/a up to 11.000
S840E400M2 (form. Z16IZF2E-400UCV) 400 GB unknown unknown unknown 7,3 PB[1] up to 500 MB/s up to 300 MB/s up to 75.000 n/a up to 11.000
S842E800M2 (form. Z16IZF2E-800UCZ) 800 GB 1.024 GB
(28%)[2]
224 GB 16x64 GB 14,6 PB[1] up to 500 MB/s up to 300 MB/s up to 75.000 n/a up to 11.000

Test reports

Firmware

Date Revision Description
- E4E9 Initial Firmware.

Source: Firmware Release Notes or querying of SSD's.

References

  1. 1.0 1.1 1.2 STEC s840 Enterprise SAS SSD FAQ (www.stec-inc.com): s840 drives based on MLC carry a 5-year warranty and allow for 10 full-capacity writes per drive per day.
  2. STEC s840 Enterprise SSD Review (storagereview.com, 12.11.2012): The 800GB model uses 64GB NAND pieces, giving it a total RAW capacity of 1TB and an over-provisioning level of 28%.


Foto Werner Fischer.jpg

Author: Werner Fischer

Werner Fischer, working in the Web Operations & Knowledge Transfer team at Thomas-Krenn, completed his studies of Computer and Media Security at FH Hagenberg in Austria. He is a regular speaker at many conferences like LinuxTag, OSMC, OSDC, LinuxCon, and author for various IT magazines. In his spare time he enjoys playing the piano and training for a good result at the annual Linz marathon relay.