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Half-height internal LTO Ultrium 2 tape drive in light-grey metal casing with SAS connector

HP

HP DW085A LTO Ultrium 2 backup drive SAS 400GB compressed 64MB buffer

SKU CH-CAPV-9ZS1G MPN DW085A

Internal LTO Ultrium 2 tape drive with SAS interface, 200 GB native capacity, 400 GB compressed capacity and 64 MB buffer

  • TypeInternal
  • Media TypeLTO Ultrium 2
  • Compressed Capacity400GB
  • Native Capacity200GB
  • InterfaceSAS
  • Buffer64MB
  • Half-height design fits standard drive bays
  • SAS interface connects to compatible host adapters
  • 400 GB compressed capacity stores large backup sets
  • 64 MB buffer smooths data flow during write operations
  • 173 GB/hr compressed transfer rate completes jobs quickly

Internal half-height LTO Ultrium 2 tape drive

The HP DW085A is an internal half-height tape drive that uses LTO Ultrium 2 media. It connects via a SAS interface and provides a 64 MB buffer to sustain streaming operations. The drive writes up to 200 GB of native data or 400 GB compressed per cartridge.

Suited for SAS-equipped servers needing LTO-2

This drive fits servers and workstations that have a SAS host bus adapter and require LTO Ultrium 2 read and write capability. It is not suitable for systems that only offer SCSI, Fibre Channel or USB connectivity, nor for workflows that demand LTO-3 or later media formats.

400 GB compressed capacity per cartridge

Each LTO Ultrium 2 cartridge holds 400 GB when compression is enabled, with a native capacity of 200 GB. The compressed sustained transfer rate reaches 173 GB per hour, determining how quickly backups complete on this drive.

Highlights

  • Half-height design fits standard drive bays
  • SAS interface connects to compatible host adapters
  • 400 GB compressed capacity stores large backup sets
  • 64 MB buffer smooths data flow during write operations
  • 173 GB/hr compressed transfer rate completes jobs quickly

Specifications

BrandHP
ModelDW085A
TypeInternal
Media TypeLTO Ultrium 2
Compressed Capacity400GB
Native Capacity200GB
InterfaceSAS
Buffer64MB
Compressed Sustained Transfer Rate173GB/hr
Shipping weight2.72 kg
Package size254 × 178 × 178 mm

Questions about this item

Does the DW085A ship with any LTO Ultrium 2 cartridges or a SAS cable, or must I buy them separately?

The drive is supplied as the internal unit only; LTO Ultrium 2 data cartridges and a SAS cable are not included and must be purchased separately.

Should I choose the 200 GB native or the 400 GB compressed capacity figure when planning how many tapes to buy?

Plan on the 200 GB native capacity; the 400 GB compressed figure assumes 2:1 compression which varies with your data type and cannot be guaranteed.

What does the 173 GB/hr compressed transfer rate mean for a typical backup window on this SAS drive?

At the rated 173 GB/hr compressed rate a full 400 GB cartridge would take roughly 2.3 hours, though actual throughput depends on host performance and data compressibility.

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