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At CentricsIT, we are your IT experts. When any IT maintenance issue arises in your data center we are here to help. If there is an error code you can’t fix, let us assist you in our monthly FixIT column. This month, we’re covering the HP error: MEM_PDT_TABLE_FULL or the PDT Full Memory Error in MP SL Logs.

What is the PDT Full Memory Error in MP SL Logs?

This is a critical level-five error and will present itself commonly during system boot. The error occurs in the page deallocation table (PDT) which is where the system logs all single and multiple bit memory errors. The procedure below will show you how to clear the PDT from the shell prompt which will resolve the error.

Note: The PDT table can be cleared, however it is best to record its contents before clearing. Too many errors on the same DIMM could lead to an unstable system. CentricsIT can check and replace the eventual bad DIMM(s) in order to avoid system crashes in the future.

How Can It be Resolved?

EFI Boot Manager ver 1.10

[14.62] Firmware ver 4.29 [4748] Please select a boot option

HP-UX Primary Boot: 0/1/1/1.0×2.0x0
Boot Option Maintenance Menu
System Configuration
Use ‘help <command>’ for full documentation of a command
Use ‘help -a’ to display list of all commands

PDT Information for PD
Last Clear time for PD: 05/31/09 01:30p
Number of total entries in PD PDT: 100
Number of used entries in PD PDT: 75
Number of free entries in PD PDT: 25
Number of permanent correctable (SBE) entries in PD PDT: 0
Number of permanent uncorrectable (MBE) entries in PD PDT: 0
Address of first uncorrectable error in PD: 0x000000000000000000

Shell> pdt clear TYPE ‘pdt clear’ AT THIS SHELL PROMPT.

Once these steps are completed, you will be prompted to verify you want to clear the PDT. Once you select the ‘yes’ option , reboot your system and your issue should be resolved.

If you have any further questions about this error, contact our dedicated IT support staff by calling us toll free at 1 (877) 531-7466. CentricsIT offers data center services including data center hardware maintenance and support, and we can help you get the most out of your data center, regardless of its size.