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Dell PowerVault ME4 Series Storage System CLI Guide

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disk-groups

This basetype is used by show configuration, show disk-groups, and show pools.

Table 1. disk-groups properties
Name	Type	Description
name	string	The name of the disk group.
url	string	Disk group URL.
blocksize	uint32	The size of a block, in bytes.
size	string	Disk group capacity, formatted to use the current base, precision, and units.
size-numeric	uint64	Unformatted size value in blocks.
freespace	string	The amount of free space in the disk group, formatted to use the current base, precision, and units.
freespace-numeric	uint64	Unformatted freespace value in blocks.
raw-size	string	The raw capacity of the disks in the disk group, irrespective of space reserved for RAID overhead and so forth, formatted to use the current base, precision, and units.
raw-size-numeric	uint64	Unformatted raw-size value in blocks.
storage-type	string	Linear: The disk group acts as a linear pool. Virtual: The disk group is in a virtual pool.
storage-type-numeric	uint32	Numeric equivalents for storage-type values. 0: Linear 1: Virtual
pool	string	The name of the pool that contains the disk group.
pools-url	string	Pool URL.
pool-serial-number	string	The serial number of the pool that contains the disk group.
storage-tier	string	Archive: The disk group is in the lowest storage tier, which uses midline spinning SAS disks (<10k RPM, high capacity). Performance: The disk group is in the highest storage tier, which uses SSDs (high speed). Read Cache: The disk is an SSD providing high-speed read cache for a storage pool. Standard: The disk group is in the storage tier that uses enterprise-class spinning SAS disks (10k/15k RPM, higher capacity).
storage-tier-numeric	uint32	Numeric equivalents for storage-tier values. 0: N/A 1: Performance 2: Standard 4: Archive 8: Read Cache
total-pages	uint32	For a virtual disk group, the total number of 4 MB pages it contains. For a linear disk group, 0.
allocated-pages	uint32	For a virtual pool, the number of 4 MB pages that are currently in use. For a linear pool, 0.
available-pages	uint32	For a virtual pool, the number of 4 MB pages that are still available to be allocated. For a linear pool, 0.
pool-percentage	uint8	The percentage of pool capacity that the disk group occupies.
performance-rank	uint8	Disk group performance rank within the virtual pool.
owner	string	Either the preferred owner during normal operation or the partner controller when the preferred owner is offline. A: Controller A. B: Controller B.
owner-numeric	uint32	Numeric equivalents for owner values. 0: B 1: A
preferred-owner	string	Controller that owns the disk group and its volumes during normal operation. A: Controller A. B: Controller B.
preferred-owner-numeric	uint32	Numeric equivalents for preferred-owner values. 0: B 1: A
raidtype	string	The RAID level of the disk group. NRAID RAID0 RAID3 RAID5 RAID6 RAID10 RAID50 ADAPT
raidtype-numeric	uint32	Numeric equivalents for raidtype values. 0: RAID0 1: RAID1 2: ADAPT 3: RAID3 5: RAID5 6: NRAID 8: RAID50 10: RAID10 11: RAID6
diskcount	uint16	Number of disks in the disk group.
sparecount	uint16	For a linear disk group, the number of spares assigned to the disk group. For a virtual disk group, 0.
chunksize	string	For RAID levels except NRAID, RAID 1, and RAID 50, the chunk size for the disk group. For NRAID and RAID 1, chunk-size has no meaning and is therefore shown as not applicable (N/A). For RAID 50, the disk-group chunk size calculated as: `configured-chunk-size x (subgroup-members - 1)`. For a disk group configured to use 64-KB chunk size and 4-disk subgroups, the value would be 192k (64KB x 3).
status	string	CRIT: Critical. The disk group is online but isn't fault tolerant because some of its disks are down. DMGD: Damaged. The disk group is online and fault tolerant, but some of its disks are damaged. FTDN: Fault tolerant with a down disk. The disk group is online and fault tolerant, but some of its disks are down. FTOL: Fault tolerant and online. MSNG: Missing. The disk group is online and fault tolerant, but some of its disks are missing. OFFL: Offline. Either the disk group is using offline initialization, or its disks are down and data may be lost. QTCR: Quarantined critical. The disk group is critical with at least one inaccessible disk. For example, two disks are inaccessible in a RAID-6 disk group or one disk is inaccessible for other fault-tolerant RAID levels. If the inaccessible disks come online or if after 60 seconds from being quarantined the disk group is QTCR or QTDN, the disk group is automatically dequarantined. QTDN: Quarantined with a down disk. The RAID-6 disk group has one inaccessible disk. The disk group is fault tolerant but degraded. If the inaccessible disks come online or if after 60 seconds from being quarantined the disk group is QTCR or QTDN, the disk group is automatically dequarantined. QTOF: Quarantined offline. The disk group is offline with multiple inaccessible disks causing user data to be incomplete, or is an NRAID or RAID-0 disk group. STOP: The disk group is stopped. UNKN: Unknown. UP: Up. The disk group is online and does not have fault-tolerant attributes.
status-numeric	uint32	Numeric equivalents for status values. 0: FTOL 1: FTDN 2: CRIT 3: OFFL 4: QTCR 5: QTOF 6: QTDN 7: STOP 8: MSNG 9: DMGD 250: UP other:UNKN
lun	uint32	Deprecated.
min-drive-size	string	Minimum disk size that can this disk group can use, formatted to use the current base, precision, and units.
min-drive-size-numeric	uint64	Numeric equivalents for min-drive-size values.
create-date	string	Date and time, in the format `year-month-day hour:minutes:seconds` (UTC), when the disk group was created.
create-date-numeric	uint32	Unformatted create-date value.
cache-read-ahead	string	Deprecated.
cache-read-ahead-numeric	uint64	Deprecated.
cache-flush-period	uint32	Deprecated.
read-ahead-enabled	string	Deprecated.
read-ahead-enabled-numeric	uint32	Deprecated.
write-back-enabled	string	Deprecated.
write-back-enabled-numeric	uint32	Deprecated.
job-running	string	Same as current-job.
current-job	string	Job running on the disk group, if any. DRSC: A disk is being scrubbed. EXPD: The disk group is being expanded. INIT: The disk group is initializing. RBAL: The ADAPT disk group is being rebalanced. RCON: At least one disk in the disk group is being reconstructed. VDRAIN: The virtual disk group is being removed and its data is being drained to another disk group. VPREP: The virtual disk group is being prepared for use in a virtual pool. VRECV: The virtual disk group is being recovered to restore its membership in the virtual pool. VREMV: The disk group and its data are being removed. VRFY: The disk group is being verified. VRSC: The disk group is being scrubbed. Blank if no job is running.
current-job-numeric	uint32	Numeric equivalents for current-job values. 0: (blank) 2: INIT 3: RCON 4: VRFY 5: EXPD 6: VRSC 7: DRSC 9: VREMV 12: VPREP 13: VDRAIN 14: VRECV 16: RBAL
current-job-completion	string	0%–99%: Percent complete of running job. (blank): No job is running (job has completed).
num-array-partitions	uint32	Number of volumes in the disk group.
largest-free-partition-space	string	The largest contiguous space in which a volume can be created. The value is formatted to use the current base, precision, and units.
largest-free-partition-space-numeric	uint64	Unformatted largest-free-partition-space value in blocks.
num-drives-per-low-level-array	uint8	For a RAID-10 or RAID-50 disk group, the number of disks in each subgroup. For other RAID levels, 1.
num-expansion-partitions	uint8	Not used.
num-partition-segments	uint8	Number of free segments available for expansion of volumes.
new-partition-lba	string	Maximum number of blocks that could be allocated to a newly created volume. The value is formatted to use the current base, precision, and units. Expanding a volume in the same disk group will reduce this amount.
new-partition-lba-numeric	uint64	Unformatted new-partition-lba value in blocks.
array-drive-type	string	Type of disks used in the disk group. SAS: Enterprise SAS SAS MDL: Midline SAS. sSAS: SAS SSD. MIXED: Mixture of enterprise SAS and midline SAS disks
array-drive-type-numeric	uint32	Numeric equivalents for array-drive-type values. 1: MIXED 4: SAS 8: sSAS 11: SAS MDL
disk-description	string	Disk description. SAS: Enterprise SAS spinning disk. SAS MDL: Midline SAS spinning disk. SSD SAS: SAS solid-state disk.
disk-description-numeric	uint32	Numeric equivalents for description values. 4: SAS 8: SSD SAS 11: SAS MDL
is-job-auto-abortable	string	false: The current job must be manually aborted before you can delete the disk group. true: The current job will automatically abort if you delete the disk group.
is-job-auto-abortable-numeric	uint32	Numeric equivalents for is-job-auto-abortable values. 0: false 1: true
serial-number	string	Disk group serial number.
blocks	string	The number of blocks, whose size is specified by the blocksize property.
blocks-numeric	uint64	Unformatted blocks value.
disk-dsd-enable-vdisk	string	Disabled: DSD is disabled for the disk group Enabled - all spinning: DSD is enabled for the disk group. Partial spin-down: DSD is enabled for the disk group and its disks are partially spun down to conserve power. Full spin-down: DSD is enabled for the disk group and its disks are fully spun down to conserve power.
disk-dsd-enable-vdisk-numeric	uint32	Numeric equivalents for disk-dsd-enable-vdisk values. 0: Disabled 1: Enabled - all spinning 2: Partial spin-down 3: Full spin-down
disk-dsd-delay-vdisk	uint32	For spinning disks in a linear disk group, the period of inactivity after which the disks and dedicated spares will automatically spin down, from 1 to 360 minutes. The value 0 means spin down is disabled.
adapt-target-spare-capacity	string	For an ADAPT disk group, the target spare capacity in GiB. Typically twice the capacity of the largest disk in the disk group.
adapt-target-spare-capacity-numeric	uint64	Unformatted adapt-target-spare-capacity value in blocks.
adapt-actual-spare-capacity	string	For an ADAPT disk group, the currently available spare capacity in GiB.
adapt-actual-spare-capacity-numeric	uint64	Unformatted adapt-actual-spare-capacity value in blocks.
adapt-critical-capacity	string	For an ADAPT disk group, the amount of storage space that is not currently protected against disk loss. (Normally all data is protected against loss of two disks.)
adapt-critical-capacity-numeric	uint64	Unformatted adapt-critical-capacity value in blocks.
adapt-degraded-capacity	string	For an ADAPT disk group, the amount of storage space that is protected against loss of a single disk only. (Normally all data is protected against loss of two disks.)
adapt-degraded-capacity-numeric	uint64	Unformatted adapt-degraded-capacity value in blocks.
adapt-linear-volume-boundary	uint32	The block size by which volumes are aligned in a linear ADAPT disk group. Disk group space is allocated in multiples of this size to such volumes.
pool-sector-format	string	The sector format of disks in the disk group. 512n: All disks use 512-byte native sector size. Each logical block and physical block is 512 bytes. 512e: All disks use 512-byte emulated sector size. Each logical block is 512 bytes and each physical block is 4096 bytes. Eight logical blocks will be stored sequentially in each physical block. Logical blocks may or may not be aligned with physical block boundaries. Mixed: The disk group contains a mix of 512n and 512e disks. This is supported, but for consistent and predictable performance, do not mix disks of different sector size types (512n, 512e).
pool-sector-format-numeric	uint32	Numeric equivalents for pool-sector-format values. 0: 512n 1: 512e 3: Mixed
health	string	OK Degraded Fault Unknown N/A
health-numeric	uint32	Numeric equivalents for health values. 0: OK 1: Degraded 2: Fault 3: Unknown 4 : N/A
health-reason	string	If Health is not OK, the reason for the health state.
health-recommendation	string	If Health is not OK, the recommended actions to take to resolve the health issue.
unhealthy-component	Embedded; see unhealthy-component.