PowerFlex: PM1733a/PM1735a Drives are missing in iDRAC - PDR5 or PR8
요약: Dell PM1735a NVMe (Non-Volatile Memory Express) drive failing in PowerEdge servers
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증상
Dell PowerEdge based servers configured with Dell Samsung PM1735a may report drives as failed, offline, or missing in the iDRAC and operating system. This can occur on a system with an NVMe enabled PERC storage controller or NVMe direct configuration.
If there is a failure, the following error messages can be present in the LifeCycle Controller logs.
PDR5 - Disk arg1 in Backplane 1 in of RAID Controller in SL3 is removed PDR1001 - Fault detected on drive arg1 in disk drive bay CTL137 - iDRAC is unable to successfully communicate with the device PCIe SSD in Slot X in Bay Y PR8 - Device not detected: Dell NVMe PCIe SSD Configuration Data(PCIe SSD in Slot X in Bay Y)
Disk model can be checked form iDRAC > Physical Disks
원인
Dell Samsung PM1735a drives can assert due to an internal job interfering with a parity update operation.
해결
Dell Technologies recommends updating the PM1733a/PM1735a drive firmware at the earliest available opportunity to avoid future occurrences of this error condition.
Dell Samsung PM1733a and PM1735a drives can both be updated using these new firmware versions
Once a drive has entered into a failed state, it is not possible to recover or update it.
See article PowerFlex How to update disk firmware on PowerEdge servers in a PowerFlex Rack or Appliance
Not Encrypted Devices
Dell PowerEdge Express Flash Ent NVMe PM1733a/35a AGN Firmware
Self Encrypted Devices (SED)
Note: Instant Secure Erase (ISE) and Federal Information Processing Standards (FIPS) versions of the drive each require a different firmware package to update.
해당 제품
PowerFlex rack, Rack Servers, ScaleIO문서 속성
문서 번호: 000481601
문서 유형: Solution
마지막 수정 시간: 25 6월 2026
버전: 1
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