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Dell PowerEdge R630 Owner's Manual

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Internal Dual SD Module

The Internal Dual SD Module (IDSDM) is included on mainstream 2 socket servers following the same behavior as 12G IDSDM. Customers can use IDSDM with a single SD card in either slot or in redundant mode with two SD cards installed.

The Internal Dual SD Module (IDSDM) card provides the following major functions:

  • Dual SD interface, maintained in a mirrored configuration (primary and secondary SD).
  • The IDSDM card does provide full RAID-1 functionality.
  • Dual SD cards are not required. The module can operate with only one card, but will provide no redundancy.
  • IDSDM will enable support for Secure Digital eXtended Capacity (SDXC) cards.
  • USB interface to host system.
  • I2C interface to host system and onboard EEPROM for out-of-band status reporting.
  • Onboard LEDs showing status of each SD card.

IDSDM New Features

The following table lists the new features of IDSDM on 13G systems.

Table 1. IDSDM New FeaturesIDSDM New Features
IDSDM New Features
New Features Description
Support for RAID and Data Integrity 13G iDSDM implements RAID functionality. This means that at any given time, after rebuild, contents will stay synchronized. If RAID feature is enabled, writes to iDSDM will perform write operation to both SD cards simultaneously.
Support to ensure data integrity during power loss conditions is implemented.
Support for USB 3.0 (Higher Bandwidth) System will work with USB 3.0. If USB 3.0 is disabled, or if the an error on USB 3.0 is detected, iDSDM will fall back to USB 2.0.
User Prioritized SD Slots User will be able to define which SD slot is primary.
Once primary SD slot it selected, iDSDM will perform operation using that SD card.
If RAID is enabled, content of primary SD card will be mirrored on secondary SD card.
Bad Block Management Unlike 12G where a single bad sector will cause SD card to be considered “Failed”, 13G iDSDM implements more robust mechanism for bad block management.
This mean SD cards failing on 12G might be functional on 13G iDSDM.
Multiple read/write needs to happen before SD card is considered to be in failed state.
No More BIOS Halt During Rebuild Unlike 12G, 13G iDSDM does not require the BIOS to halt during POST and wait for the rebuild to complete.
Rebuild will happen in background and is much faster as compared to 12G. An 8GB card should rebuilt in less than 30 minutes.
Enhanced Support for Mismatched SD Cards Functionality of primary SD card will not be compromised if the secondary SD card has a different speed or lower storage.
Mismatch check will only happen if the iDSDM is operating in RAID mode.
Only secondary SD card will be placed in mismatch state. If the secondary card does not match the speed or has lower storage capacity than the primary card, the secondary card will be placed in the MISMATCH state.
Enhanced Support for Write-Protected SD Cards After insertion, a card is determined to be in WRITE PROTECTED state if write protect notch is enabled.
Cards in the WRITE PROTECTED state will be treated as Read Only. If at least one card is in the WRITE PROTECTED state and RAID is enabled, the iDSDM will operate in the degraded RAID state. RAID will automatically be disabled if both cards are in this state.
Seamless SD Card Assignments IDSDM will bring secondary SD card online and will make it primary if, for some reason, primary SD card fails.
If RAID is enabled, there will be no compromise in functionality however, system will notify user of degraded RAID status.
Enriched Error Reporting New errors have been implemented to help root cause a failure.
Failures will be in iDRAC logs.
Multiple failures can be now recorded and logged.
Mass Erase for Enhanced Security Mass erase options are provided in iDSDM. Enabling this register will clean up all the data preset on SD cards.
UHS-1 SD Card Support New to 13G. Was not supported on 12G.

Supported Operating Systems

The following operating systems are supported on IDSDM.

  • VMWare® ESXi 5.1 and above
  • Citrix XenServer® 6.1 and above
  • Windows® Hyper-V Server 2008 R2 (not supported by Dell)
  • Windows® 2012 Hyper-V Core (not supported by Dell)

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