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Lenovo lists 4XB7A90876 (feature code BYLU) as the ThinkSystem 2.5-inch VA 3.84TB Read Intensive SATA 6Gb hot-swap SSD v2. VA stands for Vendor Agnostic, a program of non-vendor-specific SATA SSDs. This part number has no SED encryption.
At 3.84TB Lenovo rates endurance at 1 drive write per day over 5 years, which is 7,008 TB written. Data reliability is better than 1 unrecoverable bit error in 10^17 bits read, and MTBF is 2,000,000 hours.
Lenovo's figures for this capacity are 83,000 random read IOPS and 27,000 random write IOPS at 4 KB, with sequential reads of 480 MBps and sequential writes of 460 MBps at 128 KB. Non-operating shock is rated at 1,500 G for 0.5 ms and non-operating vibration at 20 G from 20 to 2000 Hz.
The same read-intensive v2 table covers 4XB7A90874 (960GB, BYLS), 4XB7A90875 (1.92TB, BYLT) and 4XB7A90877 (7.68TB, BYLV). The 7.68TB drive is rated at 0.6 DWPD, which makes 3.84TB the largest of the four at 1 DWPD.
The Lenovo SSD category also lists the Lenovo ThinkSystem 2.5-inch VA 1.92TB read intensive SATA 6Gb SSD v2.
| Option part number | 4XB7A90876 |
| Feature code | BYLU |
| Capacity | 3.84TB |
| Interface | 6 Gbps SATA |
| Form factor | 2.5-inch hot-swap |
| Class | Read Intensive |
| Endurance | 1 DWPD for 5 years (7,008 TB written) |
| 4 KB random IOPS | 83,000 read / 27,000 write |
| 128 KB sequential | 480 MBps read / 460 MBps write |
| MTBF | 2,000,000 hours |
| SED encryption | No |