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Green rectangular circuit board with silver memory chips and gold edge connector

HPE

HPE 508118-001 Smart Array P700M 256MB Cache Module server accessory

SKU CH-HAH8-NKTCT MPN 508118-001

Adds 256 MB cache memory to Smart Array P700M controllers for improved RAID performance

  • TypeOther
  • FeaturesSmart Array P700M 256MB Cache Module Memory
  • Boosts controller performance with 256MB cache memory
  • Supports Smart Array P700M for RAID acceleration
  • Ready to install as new condition module
  • Compatible with HPE server accessory ecosystems
  • Manufacturer listed since 28 January 2015

Smart Array P700M cache module

The HPE 508118-001 is a 256 MB cache module designed for Smart Array P700M controllers in supported servers. It provides additional write-back cache memory to improve storage array performance. This accessory targets administrators upgrading controller cache capacity in existing HPE ProLiant deployments.

Upgrading from lower cache configurations

The module replaces a smaller or absent cache on the P700M controller, enabling write-back caching where write-through was previously required. The jump is worth it when workloads involve frequent random writes or RAID 5 and 6 rebuilds that benefit from the extra 256 MB buffer. Controllers already equipped with a larger cache will not see further gains from this part.

Installation notes and common issues

Installation requires powering down the server, opening the chassis, and seating the module into the dedicated cache slot on the P700M board. The most common issue is forgetting to enable the new cache in the controller firmware after the hardware is fitted. Another frequent problem occurs when the module is inserted into an incompatible controller slot, preventing the server from posting.

Highlights

  • Boosts controller performance with 256MB cache memory
  • Supports Smart Array P700M for RAID acceleration
  • Ready to install as new condition module
  • Compatible with HPE server accessory ecosystems
  • Manufacturer listed since 28 January 2015

Specifications

BrandHP
Model508118-001
TypeOther
FeaturesSmart Array P700M 256MB Cache Module Memory
Shipping weight0.91 kg
Package size178 × 127 × 76 mm

Questions about this item

What slot does the Smart Array P700M 256MB Cache Module plug into?

The module installs into the dedicated cache slot on the Smart Array P700M controller board.

What is the common mistake when fitting the 256MB cache module?

Inserting the module at an angle instead of pressing it straight down until the retaining clips click.

When should the 256MB cache module be replaced?

Replace the module if the controller reports a cache memory error or if the battery-backed write cache fails self-test.

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