Dell Storage - Updating PERC H840 Profile to Accommodate more than 64 Physical Disks
Summary: PERC H840 reports the 64-disk limit has been exceeded. Increase the disk limit.
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Symptoms
Dell Storage - Updating PERC H840 Profile to Accommodate more than 64 Physical Disks
Cause
None
Resolution
Table of Contents
Description
The Dell Storage MD1400 and MD1420 DAS (direct-attached storage) enclosures, can be cabled together to provide additional storage. When six or more MD1400, or three or more MD1420 enclosures are deployed, the PERC H840 will report that the 64-disk limit has been exceeded during bootup. It does not matter if the enclosures are connected on the same channel or not.
Solution
A feature of the PERC 10 is the concept of Profile Management, to switch between DAS profiles, which define the maximum number of physical and virtual disks. The H840 has two profiles: PD64 and PD240. To increase the 64-disk Limit to 240 disks, the PERC H840 profile can be updated to accomodate more than 64 physical discs.
Further Information
For more information on the PERC10 family including the H840 please see the Dell EMC PowerEdge RAID Controller 10 User’s Guide H740P, H745P MX, and H840 .
For more information on the initial setup of the MD1400 and the MD1420 DAS please see the Dell Storage MD1400 and MD1420 Enclosures Getting Started Guide.
For more information on the initial setup of the MD1400 and the MD1420 DAS please see the Dell Storage MD1400 and MD1420 Enclosures Getting Started Guide.
Affected Products
Dell Storage MD1400, Dell Storage MD1420Article Properties
Article Number: 000177914
Article Type: Solution
Last Modified: 29 Jul 2025
Version: 8
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