00AJ465 Lenovo S3500 240GB SATA 3.5in MLC Enterprise Value SSD

In Lenovo's ordering tables 00AJ465 is the S3500 240GB SATA 3.5" MLC HS Enterprise Value SSD for System x, feature code A56D. It is 240GB, 3.5-inch and ships on a 3.5-inch hot-swap tray.

Inside is Intel 20 nm MLC flash on a 6 Gbps SATA link. The guide credits the drives with 256-bit AES encryption, end-to-end data path protection and enhanced protection against power loss, and gives 5 W typical power, 2,000,000 hours MTBF and fewer than 1 in 10^17 bits read as the data reliability figure.

Rated figures for this capacity: 140 TB total bytes written, 75,000 random read IOPS, 7,500 random write IOPS, 500 MBps sequential read and 260 MBps sequential write.

The guide explains that Enterprise Value and Enterprise SSDs read at similar IOPS but differ in endurance and write IOPS. TBW is the total data Lenovo rates the drive to write; after passing it, the drive reaches end of life at some point and goes read-only, so write volume should be planned against the rating.

Lenovo documents support in these servers: the System x3630 M4 (7158), with both the original and E5-2400 v2 processors. Lenovo's Configuration and Options Guide of 17 January 2017 also lists it for the x3500 M5 (5464) and x3550 M5 (5463 and 8869), marked with an asterisk as withdrawn.

Fit check: confirm the server is on the list and the bay is a 3.5-inch hot-swap bay; the label should carry 00AJ465 or FC A56D. Other sizes: 00AJ460, 00AJ470.