Endurance Of Ssd - NEC Express5800 Configuration Manual

CONFIGURATION GUIDE

Endurance of SSD

The 2.5-inch SAS/SATA SSDs have limited lifetime, which can only be written a limited number of times before it fails.
The warranty period of SSD is the stated period of warranty or until the total bytes of written value (PBW) exceeds the
limit value, whichever occurs first. It is recommended to check the total bytes of written value periodically.
Refer to the table below for the write endurance (PBW and DWPD), warranty period and monitoring tool.
SSD Lifetime
Part Number
SAS SSD
N8150-721
N8150-722
SATA SSD (Middle Endurance)
N8150-725
N8150-726
N8150-727
SATA SSD (Value Endurance)
N8150-732
N8150-733
N8150-734
N8150-735

PBW(Peta-Bytes Write): Total amount of data that can be written into the SSD. 1PB=1,000TB.

DWPD(Drive Writes per Day): Rewrite capacity of the SSD per day.

Check the lifetime of SSD by monitoring tool regularly.

It is recommended to replace the SSD before it reaches its end of life. For repurchase, please contact your sales
representative.

For detailed operating methods of monitoring tool, refer to the User's Guide.
NEC Corporation
–
NEC Express5800/R120g-2E Storage-Rich
Product Name
200GB Hot Plug 2.5-inch SAS
SSD
400GB Hot Plug 2.5-inch SAS
SSD
200GB Hot Plug 2.5-inch
SATA SSD
400GB Hot Plug 2.5-inch
SATA SSD
800GB Hot Plug 2.5-inch
SATA SSD
200GB Hot Plug 2.5-inch
SATA SSD
400GB Hot Plug 2.5-inch
SATA SSD
800GB Hot Plug 2.5-inch
SATA SSD
1.6TB Hot Plug
2.5-inch SATA SSD
Revision 6.0 – April, 2017
PBW DWPD
3.6PBW 10 Times
7.3PBW 10 Times
3.6PBW 10 Times
7.3PBW 10 Times
14.6PBW 10 Times
1.1PBW 3 Times
3.0PBW 3 Times
5.3PBW 3 Times
10.7PBW 3 Times
Period Monitoring Tool
Universal RAID Utility,
3 Years
EXPRESSBUILDER
(System Test and
Diagnostics)
3 Years
3 Years
3 Years
3 Years
3 Years
3 Years
3 Years
3 Years
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