2.3.1 Monitoring the Status of Flash Disks

You can monitor the status of a flash disk on the Exadata Database Machine by checking its attributes with the DBMCLI LIST PHYSICALDISK command.

For example, a flash disk status equal to failed is probably having problems and needs to be replaced.

• Use the DBMCLI command LIST PHSYICALDISK to determine the status of a flash disk:

  DBMCLI> LIST PHYSICALDISK WHERE disktype=flashdisk AND status!=normal DETAIL
           name:               FLASH_1_1
           deviceName:         /dev/nvme0n1
           diskType:           FlashDisk
           luns:               1_1
           makeModel:          "Oracle Flash Accelerator F640 PCIe Card"
           physicalFirmware:   QDV1RD09
           physicalInsertTime: 2017-08-11T12:25:00-07:00
           physicalSerial:     PHLE6514003R6P4BGN-1
           physicalSize:       2.910957656800747T
           slotNumber:         "PCI Slot: 1; FDOM: 1"
           status:             failed - dropped for replacement

The Exadata Database Server flash disk statuses are as follows:

• normal

• normal - dropped for replacement

• failed

• failed - dropped for replacement

• failed - rejected due to incorrect disk model

• failed - rejected due to incorrect disk model - dropped for replacement

• failed - rejected due to wrong slot

• failed - rejected due to wrong slot - dropped for replacement

• warning - peer failure

• warning - predictive failure, write-through caching

• warning - predictive failure

• warning - predictive failure - dropped for replacement

• warning - write-through caching