Hi Gris,

Sorry, I forgot to ask this before, but why are you making changes to
support megaraid SMI-S provider when we now have a specific plugin for them?

Thanks,
Tony


On 03/14/2015 08:04 AM, Gris Ge wrote:
>  * Using SNIA SMI-S 1.4 'Disk Sparing' profile to set Disk.STATUS_SPARE_DISK.
>    # Works well on EMC VMAX, Fujitsu ETERNUS, LSI MegaRAID.
>    # They are only array have spare disks I got access.
> 
>  * Use vendor specific way to set Disk.STATUS_FREE:
>     1. EMC:
>         'EMCInUse' property of CIM_DiskDrive. False == Free.
>        # Tested on EMC VNX.
> 
>     2. LSI MegaRAID:
>         StoragePool_InstanceID of CIM_StorageExtent,
>         if not contain 'Pool' keyword, it could be free disk or spare disk.
>         Then filter out spare disk, we got free disks.
>        # Tested on LSI MegaRAID.
> 
> Signed-off-by: Gris Ge <f...@redhat.com>
> ---
>  plugin/smispy/smis_disk.py | 28 ++++++++++++++++++++++++++--
>  1 file changed, 26 insertions(+), 2 deletions(-)
> 
> diff --git a/plugin/smispy/smis_disk.py b/plugin/smispy/smis_disk.py
> index 6b476f1..0321bd1 100644
> --- a/plugin/smispy/smis_disk.py
> +++ b/plugin/smispy/smis_disk.py
> @@ -77,10 +77,11 @@ def cim_disk_pros():
>      """
>      Return all CIM_DiskDrive Properties needed to create a Disk object.
>      The 'Type' and 'MediaType' is only for MegaRAID.
> +    The 'EMCInUse' is only for EMC.
>      """
>      return ['OperationalStatus', 'Name', 'SystemName',
>              'Caption', 'InterconnectType', 'DiskType', 'DeviceID',
> -            'Type', 'MediaType']
> +            'Type', 'MediaType', 'EMCInUse']
>  
>  
>  def sys_id_of_cim_disk(cim_disk):
> @@ -173,11 +174,34 @@ def cim_disk_to_lsm_disk(smis_common, cim_disk):
>      """
>      # CIM_DiskDrive does not have disk size information.
>      # We have to find out the Primordial CIM_StorageExtent for that.
> +    # The 'StoragePool_InstanceID' is for LSI MegaRAID only.
>      cim_ext = _pri_cim_ext_of_cim_disk(
>          smis_common, cim_disk.path,
> -        property_list=['BlockSize', 'NumberOfBlocks'])
> +        property_list=[
> +            'BlockSize', 'NumberOfBlocks', 'StoragePool_InstanceID'])
>  
>      status = _disk_status_of_cim_disk(cim_disk)
> +    # Check spare disk, LSI MegaRAID use dedicate spare disk.
> +    cim_srss = smis_common.AssociatorNames(
> +        cim_ext.path, AssocClass='CIM_IsSpare',
> +        ResultClass='CIM_StorageRedundancySet')
> +    if len(cim_srss) >= 1:
> +        status |= Disk.STATUS_SPARE_DISK
> +
> +    if smis_common.is_megaraid():
> +        # Dirty hack:
> +        # On LSI MegaRAID, free or spare disks will assigned to a internal
> +        # storage pool with instance ID like '500605B002884430_SASHDD'
> +        # In stread of find out all valid storage pool, we just
> +        # assume valid pool of LSI holds 'Pool' keywords in DeviceID.
> +        if 'Pool' not in cim_ext['StoragePool_InstanceID']:
> +            # Check spare disk, LSI MegaRAID use dedicate spare disk.
> +            if not status & Disk.STATUS_SPARE_DISK:
> +                status |= Disk.STATUS_FREE
> +
> +    elif 'EMCInUse' in cim_disk.keys() and cim_disk['EMCInUse'] is False:
> +        status |= Disk.STATUS_FREE
> +
>      name = ''
>      block_size = Disk.BLOCK_SIZE_NOT_FOUND
>      num_of_block = Disk.BLOCK_COUNT_NOT_FOUND
> 


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