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Dell PowerVault MD 32XX/36XX Series Storage Arrays CLI Guide

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Show Storage Array Auto Configure

Description

This command shows the default autoconfiguration that the storage array creates if you issue the autoConfigure storageArray command. To determine whether the storage array can support specific properties, enter the parameter for the properties when you issue this command. You do not, however, need to enter any parameters for this command to return configuration information. If you do not specify any properties, this command returns the RAID 5 candidates for each physical disk type. If RAID 5 candidates are not available, this command returns candidates for RAID 1 or RAID 0. In order to view the RAID 6 autoConfiguration options, you must specify the raidLevel option. When you specify auto-configuration properties, the RAID controller modules validate that the firmware can support the properties.

Syntax

show storageArray autoConfiguration 
                                 [physicalDiskType=(SAS) 
                                 raidLevel=(0 | 1 | 5 | 6) 
                                 diskGroupWidth=
                                 numberOfPhysicalDisks diskGroupCount=numberOfDiskGroups virtualDisksPerGroupCount=
                                 
                                 numberOfVirtualDisksPerGroup
                                    
                                 hotSpareCount=
                                 numberOfHotspares
                                    
                                 segmentSize=
                                 segmentSizeValue
                                    
                                 cacheReadPrefetch=(TRUE | FALSE)
                                 securityType=(none | capable | enabled)]
                                 [securePhysicalDisks=(fips | sed)]

Parameters

Parameter

Description

 
physicalDiskType

Type of physical disk to use for the storage array. Valid physical disk type is SAS. This parameter is not required if only one type of physical disk is in the storage array. 

raidLevel

RAID level of the disk group that contains the physical disks in the storage array. Valid RAID levels are 0, 1, 5 or  6. 

diskGroupWidth

Number of physical disks in a disk group in the storage array. This number depends on the capacity of the physical disks. Integer values are required. For information about the number of physical disks that you can use in a disk group, see Enclosure Loss Protection. 

diskGroupCount

Number of disk groups in the storage array. Use integer values. 

virtualDisksPerGroupCount

Number of equal-capacity virtual disks per disk group. Use integer values. 

hotSpareCount

Number of hot spares desired in the storage array. Use integer values. For information about hot spares, see Assigning Global Hot Spares. 

segmentSize

Amount of data (in kilobytes) that the RAID controller module writes on a single physical disk in a virtual disk before writing data on the next physical disk. Valid values are 8, 16, 32, 64, 128, 256, or 512. For information about the segmentSize parameter, see Using The Auto Configure Command. 

cacheReadPrefetch

The setting to turn on or turn off cache read prefetch. To turn off cache read prefetch, set this parameter to FALSE. To turn on cache read prefetch, set this parameter to TRUE. 

securityType
The setting to specify the security level when creating the disk groups and all associated virtual disks. These settings are valid:
  • none—The disk group and virtual disks are not secure.
  • capable—The disk group and virtual disks are capable of having security set, but security has not been enabled.
  • enabled—The disk group and virtual disks have security enabled.
The type of secure physical disks to use in the disk group. These settings are valid:
  • fips — To use FIPS compliant physical disks only.
  • sed — To use SED compliant physical disks only.
  • NOTE: At this time, the controller firmware does not support mixed FIPS and SED physical disks within disk groups and disk pools.
  • CAUTION: Use this parameter along with the securityType parameter. If you specify none for the securityType parameter, the value of the securePhysicalDisks parameter is ignored because non-secure disk groups do not need to have secure physical disk types specified.

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