showsi

The showsi command displays detailed properties of a storage image.

The storage image worldwide node name (WWNN) is displayed when this command is used. You must use the storage image WWNN with the lsavailpprcport and mkpprcpath commands.

Parameters

storage_image_ID | -: (Required) The storage image ID. A storage image ID consists of a manufacturer, machine type, and serial number.; If you use the dash (-), the specified value is read from standard input. However, you cannot use the dash (-) while you are in the DS CLI interactive command mode.

Example: Displaying detailed properties of a storage image

The following tables represent the headers that are displayed on the output report that is associated with the showsi command.

dscli> showsi IBM.2107–75FA120

Output

               
Name             sherwood
Desc             -
ID               IBM.2107-75NA901
Storage Unit     IBM.2107-75NA900
Model            996
WWNN             5005076408FEC795
Signature        9719-5d08-1865-1091
State            Online
ESSNet           Enabled
Volume Group     V0
os400Serial      795
NVS Memory       127.5 GB
Cache Memory     1867.3 GB
Processor Memory 1912.9 GB
MTS              IBM.5631-75NA910
numegsupported   16
ETAutoMode       all
ETMonitor        all
IOPMmode         Disabled
ETCCMode         -
ETHMTMode        Enabled
ETSRMode         Enabled
ETTierOrder      High utilization
ETAutoModeAccel  Enabled

Output definitions

Name

The name that you assigned to the storage system.

Desc

The value that you assigned as a description for the storage system.

ID

The storage image ID that consists of the manufacture, machine type, and serial number.

Storage Unit

The storage system ID that consists of the manufacture, machine type, and serial number.

Model

The model number that is associated with the storage system.

WWNN

The worldwide node name that is assigned to the storage system.

Signature

The machine signature that is represented by 12 hexadecimal digits in the format xxxx-xxxx-xxxx.

State

The status of the storage system. One of the following values are displayed:

Online: The storage system is available to process all functions.
Offline: The storage system is not capable of processing any functions.
Resuming: The storage system is starting to come online.
Quiescing: The storage system is starting to go offline.
Quiesce Exception: The storage system is in the quiesce exception state.
Forced Quiescing: The storage system is starting a force offline operation.
Fenced: The storage system has failed and is offline.
Discovery: The storage system is determining which physical configurations are available and updates itself when it discovers new hardware.

ESSNet

The storage-complex ESSNet user interface can start Copy Services operations to this storage image. Enabled or Disabled are the values that are displayed in this field.

Volume Group

The ESSNet Copy Services Volume Group ID or displays a " - " in this field.

If ESSNet Copy Services operations are enabled, the value that is displayed in this field specifies the ESSNet Copy Services type volume group. This volume group contains the logical volumes that can be controlled by Copy Services operations that are initiated through the ESSNet.

If ESSNet Copy Services operations are enabled and the ESSNet Copy Services Volume Group ID is not specified (represented by the " - " value in this field), all logical volumes are eligible to be controlled by Copy Services operations that are initiated through the ESSNet.

NVS Memory

The amount in gigabytes (GB) of nonvolatile storage (NVS) memory that is configured on the storage system. Example 16.0 GB.

Cache Memory

The amount in gigabytes (GB) of cache memory that is configured on the storage system. This memory equals the processor memory less the memory that is required for the operating system (varies with Licensed Internal Code level), NVS, and the tables that are required to manage the cache memory.

Processor Memory

The amount in gigabytes (GB) of processor memory that is configured on the storage system. Processor memory equals the installed memory less the reserved memory requirements, including firmware memory, and varies with the model, the configuration, and the Licensed Internal Code level.

MTS

The order type of the storage system. The order type varies according to the warranty periods that are associated with the storage system.

numegsupported

The number of key groups that are supported.

ETAutoMode

The automatic mode of the Easy Tier® LIC feature when the Easy Tier feature is active. The manual mode is always active if the Easy Tier LIC feature is active.

all: The Easy Tier automatic mode is active on all pools.
tiered: The Easy Tier automatic mode is active only on pools with multiple tiers.
none: The Easy Tier automatic mode is not active on any pools.
-: The Easy Tier feature, both automatic and manual modes, is not supported.

ETMonitor

If volumes are monitored by the Easy Tier LIC feature.

all: Easy Tier monitors all of the volumes on the system, regardless of the state of the Easy Tier LIC feature.
automode: Easy Tier monitors only those volumes that are managed by the Easy Tier automatic mode as specified by the -etautomode parameter.
none: Easy Tier monitors none of the volumes on the system.
-: The Easy Tier feature is not supported.

ETCCMode

Easy Tier cooperative caching. The Easy Tier cooperative caching function is also known as Easy Tier Server.

Note: Starting with Release 8, the etccmode parameter is no longer supported.

Enabled: All volumes are allowed to participate in Easy Tier cooperative caching. Only volumes that are monitored by Easy Tier can participate in Easy Tier cooperative caching.
Disabled: No volumes are allowed to participate in Easy Tier cooperative caching.
–: The system does not support Easy Tier cooperative caching.

ETHMTMode

If the Easy Tier heat map transfer feature is enabled on this storage facility image.

Enabled: The Easy Tier heat map transfer is enabled.
Disabled: The Easy Tier heat map transfer feature is not enabled.
–: The storage system does not support the Easy Tier heat map transfer feature.

ETSRMode

If space is reserved for Easy Tier data migration.

Enabled: Easy Tier space reservation control is enabled. Enable is the default, which specifies that the required space for Easy Tier to do storage optimization actions is pre-reserved in each pool. The reserved space is counted as the pool overhead, and usually it is only a small amount of the space.
Disabled: Easy Tier space reservation control is disabled. This value specifies that space is not pre-reserved for Easy Tier to do storage optimization actions. Ensure that you leave enough space in the storage pool for Easy Tier processing. If you select disable and the pool does not have enough free space, Easy Tier stops running storage optimization actions.
-: A dash (-) displays if the storage system does not support the Easy Tier space reservation function.

ETAutoModeAccel

The setting (enable or disable) of the Easy Tier Automatic Mode Acceleration control. When set to enabled, the maximum amount of data that Easy Tier can automatically migrate in a given amount of time is doubled. This occurrence might cause your existing workload to experience increased latency and decreased bandwidth while migration occurs.

Note: Set this value to disable after data that Easy Tier migrates is redistributed.

ETTierOrder

The order in which drive classes are chosen when capacity is allocated in pools.

A dash (-) displays if the storage system does not support the Easy Tier allocation method.

Table 1. The table includes the tiers for the highutil and highperf options according to storage type.
Note: The default for hybrid storage systems is highutil and the default for All Flash storage systems is highperf.
highutil		highperf
All Flash	Hybrid	All Flash	Hybrid
FlashTier1 ⁽¹⁾	Enterprise ⁽²⁾	FlashTier0 ⁽³⁾	FlashTier0
FlashTier2 ⁽⁴⁾	FlashTier1	FlashTier1	FlashTier1
FlashTier0	FlashTier2	FlashTier2	FlashTier2
	Nearline ⁽⁵⁾		Enterprise
	FlashTier0		Nearline

Notes:

The first tier of high capacity flash drives.
The tier that consists of drives with speeds of 10K RPM, 15K RPM, or a mixtures of 10K RPM and 15K RPM speeds.
The tier of high performance flash drives.
The second tier of high capacity flash drives.
The tier that consists of high-volume disks that are either SATA or SAS nearline drives.