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Lenovo

Lenovo ThinkSystem 7.68TB SAS 12G SFF PM1643a Read Intensive Hot-Swap SSD

MPN4XB7A17055

The Lenovo ThinkSystem 4XB7A17055 is a 7.68TB PM1643a SSD on 12Gb SAS, a Read Intensive Entry-class drive at 1 DWPD in a 2.5in SFF hot-swap carrier.

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Lenovo ThinkSystem 7.68TB SAS 12G SFF PM1643a Read Intensive Hot-Swap SSD

4XB7A17055 · Refurbished · 1 year warranty

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Overview

Lenovo feature B91D names the ThinkSystem 4XB7A17055, a 7.68TB PM1643a on 12Gb SAS in a 2.5in SFF hot-swap carrier, 15 mm high. It is rated Read Intensive, sits in Lenovo's Entry SSD class and is built on Samsung 64-layer V-NAND TLC.

Endurance is 1 DWPD, which works out to 14016 TB written. Sequential transfers reach 1000 MB/s in both directions. Random performance is 230000 IOPS for reads and 90000 IOPS for writes, with 130 µs read latency and 45 µs write latency. The drive draws 12 W, has an MTBF of 2000000 hours and carries no encryption.

A few drives of this capacity can create a large flash tier on a SAS backplane, replacing banks of smaller disks and freeing bays. The usual targets are media, reference data and reporting sets. It fits ThinkSystem servers including the SR650, SR630, SR650 V2, SR665, SR850, SR950, ST550 and SN850, with the full list in the FAQ.

The 4XB7A17055 is supplied Refurbished, with a choice of 1 year or 3 years of warranty, or Used, with 90 days of cover. Send us your server model and quantity.

Specifications

Lenovo 4XB7A17055 specifications
Manufacturer part number4XB7A17055
BrandLenovo
Drive writes per day1
Tbw tb14,016
Power w12
Hot-plugYes
Endurance classRead Intensive
Height mm15
InterfaceSAS
NAND typeSamsung 64-layer V-NAND TLC
SSD classEntry
Drive typeSSD
EncryptionNone
Mtbf hours2,000,000
Form factor2.5in SFF
Feature codeB91D
Seq read mbps1,000
Capacity7.68TB
Seq write mbps1,000
Read latency us130
Random read iops230,000
Write latency us45
Random write iops90,000
Compatible systemsThinkSystem ST650 V2, SR630 V2, SR650 V2, SR635, SR655, SR645, SR665, SR670 V2, SR850 V2, SR860 V2, SR950, SR850, SR850P, SR860, ST550, SR530, SR550, SR570, SR590, SR630, SR650, SD530, SN550, SN850
Interface speed12 Gb/s

Specifications from the manufacturer's datasheet ↗

Compatibility

The manufacturer lists this part for:

ThinkSystem ST650 V2, SR630 V2, SR650 V2, SR635, SR655, SR645, SR665, SR670 V2, SR850 V2, SR860 V2, SR950, SR850, SR850P, SR860, ST550, SR530, SR550, SR570, SR590, SR630, SR650, SD530, SN550, SN850

Not sure it fits? Add your system model to the message in your request and we will check before you order.

FAQ

Which servers is the 4XB7A17055 compatible with?
ThinkSystem ST650 V2, SR630 V2, SR650 V2, SR635, SR655, SR645, SR665, SR670 V2, SR850 V2, SR860 V2, SR950, SR850, SR850P, SR860, ST550, SR530, SR550, SR570, SR590, SR630, SR650, SD530, SN550 and SN850.
What endurance does the Lenovo 4XB7A17055 have?
It is a Read Intensive drive in Lenovo's Entry class, rated at 1 DWPD and 14016 TBW.
What are its random read and write figures?
230000 random read IOPS and 90000 random write IOPS.
What is the Lenovo feature code?
B91D.
Which conditions can I order?
Refurbished with 1 year or 3 years of warranty, or Used with 90 days.

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