Comment 0 for bug 1536695

As per understanding, node cleaning should fall back to dd if the the _ata_erase fails.

| maintenance_reason | Agent returned error for clean step {u'priority': 10, u'interface': |
| | u'deploy', u'step': u'erase_devices', u'abortable': True, |
| | u'reboot_requested': False} on node e3143045-09cf-4892-a699-1e26884e54ae |
| | : {u'message': u'Clean step failed: Error performing clean_step |
| | erase_devices: Error erasing block device: Block device /dev/sda is |
| | frozen and cannot be erased', u'code': 500, u'type': u'CleaningError', |
| | u'details': u'Error performing clean_step erase_devices: Error erasing |
| | block device: Block device /dev/sda is frozen and cannot be erased'}. |
| provision_state | clean failed

stack@test-blade:~$ sudo hdparm -I /dev/sda

/dev/sda:

ATA device, with non-removable media
        Model Number: XR0480GEBLV
        Serial Number: 14120D0FA6F5
        Firmware Revision: HPS4
        Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
Standards:
        Used: unknown (minor revision code 0x0028)
        Supported: 9 8 7 6 5
        Likely used: 9
Configuration:
        Logical max current
        cylinders 16383 16383
        heads 16 16
        sectors/track 63 63
        --
        CHS current addressable sectors: 16514064
        LBA user addressable sectors: 268435455
        LBA48 user addressable sectors: 937703088
        Logical Sector size: 512 bytes
        Physical Sector size: 4096 bytes
        Logical Sector-0 offset: 0 bytes
        device size with M = 1024*1024: 457862 MBytes
        device size with M = 1000*1000: 480103 MBytes (480 GB)
        cache/buffer size = unknown
        Form Factor: less than 1.8 inch
        Nominal Media Rotation Rate: Solid State Device
Capabilities:
        LBA, IORDY(can be disabled)
        Queue depth: 32
        Standby timer values: spec'd by Standard, with device specific minimum
        R/W multiple sector transfer: Max = 16 Current = 16
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4
             Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
        Enabled Supported:
           * SMART feature set
                Security Mode feature set
           * Power Management feature set
                Write cache
           * Look-ahead
                DEVICE_RESET command
           * WRITE_BUFFER command
           * READ_BUFFER command
           * NOP cmd
           * DOWNLOAD_MICROCODE
           * 48-bit Address feature set
           * Device Configuration Overlay feature set
           * Mandatory FLUSH_CACHE
           * FLUSH_CACHE_EXT
           * SMART error logging
           * SMART self-test
           * General Purpose Logging feature set
           * 64-bit World wide name
           * IDLE_IMMEDIATE with UNLOAD
           * WRITE_UNCORRECTABLE_EXT command
           * {READ,WRITE}_DMA_EXT_GPL commands
           * Segmented DOWNLOAD_MICROCODE
           * Gen1 signaling speed (1.5Gb/s)
           * Gen2 signaling speed (3.0Gb/s)
           * Gen3 signaling speed (6.0Gb/s)
           * Native Command Queueing (NCQ)
           * Phy event counters
           * Device automatic Partial to Slumber transitions
           * READ_LOG_DMA_EXT equivalent to READ_LOG_EXT
           * DMA Setup Auto-Activate optimization
                Device-initiated interface power management
                Asynchronous notification (eg. media change)
           * Software settings preservation
           * SMART Command Transport (SCT) feature set
           * SCT Write Same (AC2)
           * SCT Features Control (AC4)
           * SCT Data Tables (AC5)
           * reserved 69[4]
           * Data Set Management TRIM supported (limit 8 blocks)
           * Deterministic read ZEROs after TRIM
Security:
        Master password revision code = 65534
                supported
        not enabled
        not locked
                frozen
        not expired: security count
                supported: enhanced erase
        2min for SECURITY ERASE UNIT. 2min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 500a07510d0fa6f5
        NAA : 5
        IEEE OUI : 00a075
        Unique ID : 10d0fa6f5
Checksum: correct