NEC Express5800 Configuration Manual

Also see for NEC Express5800 Series: User guide User guide User guide User guide Configuration guide

NEC Express5800 Configuration Manual Manual pdf 37 page image

CONFIGURATION GUIDE – NEC Express5800/R120g-2E Storage-RichNEC Corporation Revision 6.0 – April, 2017 37Endurance of SSDThe 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 thelimit 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 LifetimePart Number Product Name PBW DWPD Period Monitoring ToolSAS SSD Universal RAID Utility,EXPRESSBUILDER(System Test andDiagnostics)N8150-721 200GB Hot Plug 2.5-inch SASSSD3.6PBW 10 Times 3 YearsN8150-722 400GB Hot Plug 2.5-inch SASSSD7.3PBW 10 Times 3 YearsSATA SSD (Middle Endurance)N8150-725 200GB Hot Plug 2.5-inchSATA SSD3.6PBW 10 Times 3 YearsN8150-726 400GB Hot Plug 2.5-inchSATA SSD7.3PBW 10 Times 3 YearsN8150-727 800GB Hot Plug 2.5-inchSATA SSD14.6PBW 10 Times 3 YearsSATA SSD (Value Endurance)N8150-732 200GB Hot Plug 2.5-inchSATA SSD1.1PBW 3 Times 3 YearsN8150-733 400GB Hot Plug 2.5-inchSATA SSD3.0PBW 3 Times 3 YearsN8150-734 800GB Hot Plug 2.5-inchSATA SSD5.3PBW 3 Times 3 YearsN8150-735 1.6TB Hot Plug2.5-inch SATA SSD10.7PBW 3 Times 3 Years 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 salesrepresentative. For detailed operating methods of monitoring tool, refer to the User’s Guide.