03KH561 Lenovo ThinkSystem 3.5in Nytro 3750 800GB Write Intensive SAS 12Gb HS SSD

Nytro 3750 Write Intensive drives are Seagate SAS SSDs with TCG Enterprise self-encryption, and the 3.5-inch 800 GB model is option 4XB7A83219 (feature code BR0V), which is what spare 03KH561 refers to. Seagate model number XS800ME70055 applies. The tray is hot-swap, the flash is Seagate 3D eTLC and the link is 12 Gbps SAS.

Endurance is 10 DWPD for five years, giving 14,600 TB written. Four-kilobyte throughput is 148,000 read IOPS and 162,000 write IOPS, with 128 KB sequential rates of 1105 MBps and 1096 MBps for read and write. Random latency is 115 µs reading and 25 µs writing. Power typically draws 7.7 W for reads and 5.6 W for writes.

Failure interval is rated at 2,500,000 hours MTBF, and bit errors left uncorrected stay under 1 in 10^17 read. Non-operating shock tolerance is 1,000 G at 0.5 ms, with 11.08 GRMS vibration over 20 to 2000 Hz. Safe operating temperature is 0 to 70°C, and the 15 mm form factor weighs 136 g without the tray.

SafeStore SED support for ThinkSystem RAID adapters and Sanitize Cryptographic Erase are part of the feature set, along with AES 256-bit encryption, S.M.A.R.T., ECC, XOR parity across flash dies and power loss data management with no supercapacitor. The same 3.5-inch line holds 4XB7A83218 (400GB), 4XB7A83220 (1.6TB) and 4XB7A83221 (3.2TB).