showfbvol

The showfbvol command displays detailed properties for an individual fixed block (FB) volume. Detailed information includes performance metrics of an FB volume and information about Safeguarded Copy capacity.

Read syntax diagramSkip visual syntax diagram showfbvol  -dev  storage_image_ID  -metrics  -pathgrp -rank  -reserve -tier   -volgrp  volume_group_ID  volume_ID  " - "

Parameters

-dev storage_image_ID
(Optional) The storage image ID, which consists of manufacturer, machine type, and serial number. The storage image ID is required if you do not specify a fully qualified volume ID. It is also required if you do not set the devid variable in your profile or through the setenv command, and the HMC is aware of more than one storage image. Using the -dev parameter temporarily overrides any defined value for devid for the current command.
-metrics
(Optional) Displays volume ID and performance metrics for the specified volume.
Notes:
  1. All performance counts are an accumulation since the most recent counter wrap or counter reset. Volume performance counters are reset on a power-up sequence. Volume performance counters are reset by a server failover and failback sequence.
  2. Do not use this parameter with the -pathgrp, -rank, -reserve, -tier, or -volgrp parameters.
-pathgrp
(Optional) Displays the path group status table, which contains path group information. This information includes the path group ID, the grouped, reserved, and path mode status.

Do not use this parameter with the -metrics, -rank, -reserve, -tier, or -volgrp parameters.

-rank
(Optional) A rank extents table is to be displayed. This table displays the set of ranks that the logical volume has extents that are configured on and the number of extents for that logical volume.
Note: Do not use this parameter with the -metrics, -pathgrp, -reserve, -tier, or -volgrp parameters.
-reserve
(Optional) Displays the SCSI reserve status table, which contains SCSI reserve information. This information includes the WWPN, type, and the I/O port ID.

Do not use this parameter with the -metrics, -pathgrp,-rank, -tier, or -volgrp parameters.

-sgc recovered
(Optional) Whether the relation is a safeguarded recovery.
-tier
(Optional) Displays the tier distribution table. The set of tiers are displayed with allocated storage for the specified logical volume and the percentage of the logical volume that is allocated on each tier.

Do not use this parameter with the -metrics, -pathgrp, -rank, -reserve, or -volgrp parameters.

-volgrp volume_group_ID
(Required if you do not specify the volume_ID parameter.) The fixed block volumes that are associated with the designated volume group ID are to be displayed.
Notes:
  1. You can use the -volgrp parameter only when you are doing a query for performance metrics.
  2. Do not use the -volgrp parameter with the volume_ID parameter.
  3. Do not use the -volgrp parameter with the -metrics, -pathgrp, -rank, -reserve, or -tier parameters.
volume_ID | -
(Required if you do not specify the -volgrp parameter.) Displays information for the specified volume. This parameter accepts a fully qualified volume ID, which consists of the storage_image_ID or a shortened version without the storage image ID, if you specify the -dev parameter. The volume ID is a 32-bit number that can be represented as four hexadecimal digits in the form of XYZZ where:
X
The address group, 0-F.
XY
The logical subsystem number, 00 - FE.
ZZ
The volume number, 00 - FF.
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.
Note: Do not use the volume_ID parameter with the -volgrp parameter.

Example: Showing volume properties

The following tables represent the headers that are displayed on the output reports that are associated with the showfbvol command that uses the -rank parameter. When the rank parameter is specified, a rank extents table is also displayed. It appears at the end of the regular report.

Note: The example output is based on using the showfbvol command for a 1.0 gibibyte (GiB)volume. When the rank parameter is specified, a rank extents table is displayed at the end of the regular report.
dscli> showfbvol -dev IBM.2107-1300861 -rank 0000
 
Output
Name ID
acc
state
data
state
config
state
device
MTM
data
type
addrgrp
RegrFB
Vol1
0006 Online Normal Normal 2107-900 FB 512 0
extpool exts captype
cap
(2^30B)
cap
(10^9B)
cap
(blocks)
volgrp ranks dbexts
P0 1 DS 1.0 - 2097152 - 1 0
sam repcapalloc eam reqcap (blocks)
Standard - managed 2097152
realextents virtualextents migrating perfgrp migratingfrom resgrp
1 2 0 PGO - RG0
etmonpauseremain etmonitorreset GUID
- unknown 6005076303XXC0XD0000000000000000
safeguarded safeguardedcap (2^30B) safeguardedloc SGC Recovered
Yes 16.0 mypool_1 Yes
============================Rank extents==================================
Rank Extents Capacity(MiB)
R0 1 1
R2 2 1

Output definitions ( -metrics parameter not specified)

Name
The nickname that you assigned for this volume object.
ID
The unique identifier that is assigned to this volume object.
Accstate
One of the following access states are displayed: Online or Fenced.
Online
The logical volume is accessible to a host.
Fenced
The logical volume is in the volume fenced state and is not accessible to the host.
Datastate
One of the following data states are displayed:
Normal
None of the other data states apply. The access state is Online.
Pinned
None of the other data states apply and the logical volume has one or more pinned non-retryable tracks. The access state is Online.
Read only
The logical volume can be read but not written to because one or more extents on the logical volume are on a rank in the read only data state. The access state is Online.
Inaccessible
One or more extents that are associated with the logical volume are on a rank that is in the inaccessible data state. The access state is Fenced.
Virtual space fault
The logical volume has a storage allocation method of extent space-efficient or track space-efficient. Not enough space was available to convert a virtual logical track to a real logical track. The access state is Online.
Indeterminate data loss
The following data states do not apply and that one of the following conditions occurred:
Data states that do not apply:
  • Rank failed
  • Rank repairing
  • Rank repaired
  • Global inaccessible
  • Global lost data
Conditions - one of the following conditions occurred:
  • Committed write data was lost before it was de-staged and the track identifiers that are associated with the data are unknown.
  • Data was lost that indicated extents on the logical volume were active FlashCopy® targets.

The access state is Fenced.

Rank failed
One or more extents that are associated with the logical volume are on a rank that is in the Failed data state. The access state is Fenced. This data state changes to Rank repairing if the rank changes to the Rank repairing state through use of the repair array function.
Rank Repairing
One or more extents that are associated with the logical volume are on ranks in the repairing data state. The access state is Fenced.
Rank Repaired
One or more extents that are associated with the logical volume are on ranks that were in the repairing state, but are not in the repairing state now. The access state is Fenced.
Global inaccessible
Global metadata that is associated with the logical volume configuration is inaccessible. Some of the data that is associated with the logical volume might be inaccurate. The access state is Fenced.
Global lost
Global metadata that is associated with the logical volume configuration was lost. As a result, some of the data that is associated with the logical volume might be inaccurate. The access state is Fenced.
NVS data inaccessible
Active nonvolatile storage (NVS) data is inaccessible for one or more logical volumes of an LSS group. The logical volumes in the LSS group cannot be made accessible. The access state is Fenced.
Configstate
One of the following configuration states are displayed:
Normal
No logical volume configuration operations are in progress, and the volume is not being deconfigured, merged, or migrated.
Configuring
The logical volume is being configured for the first time.
Reconfiguring
The logical volume is allocating or de-allocating extents due to a modification of the requested capacity attribute after initial creation.
Deconfiguring
The logical volume is being deleted.
Configuration error
The initial configuration did not complete successfully. This state reflects an internal error condition and not an error in the request to create the volume. If you have a volume in this state, use the rmfbvol command to delete each volume that is listed with the configuration state "configuration error".
Merging
The volume is being merged. For example, merging from one extent pool to a different extent pool.
Migrating
The volume is migrating, or waiting to be migrated.
Migration Cancelled
The volume was migrating and then the ‘migcancel' action of the manageckdvol command was issued. This process left some extents waiting to be migrated in the source pool while other extents were migrated to the target pool. Migration stopped, and cannot be resumed. If you have a volume in this state, try to migrate it again to the original source or target extent pool.
Migration Paused
The volume was migrating and then the ‘migpause' action of the manageckdvol command was issued. Migration stopped, but can be resumed.
Migration Error
The volume migration process failed to complete successfully. This state reflects an internal error condition and not an error in the user's request to migrate a volume. If you have a volume in this state, try to migrate it again to the original source or target extent pool.
Reconfiguration error
The reconfiguration request did not complete successfully.
Deconfiguration error
A request to delete a volume did not complete successfully. This state reflects an internal error condition and not an error in the request to remove the volume. To correct this state, you must reissue the rmfbvol command for the designated volume.
Transposition Error
The volume is in an extent pool that was unsuccessfully merged. This state reflects an internal error condition. Corrective action: Use the chextpool command with the -merge parameter again to redrive the merge extent pool and to correct this state.
device MTM
The volume device type and the machine type. The volume MTM value is determined by the fixed block volume data type and the provisioned capacity (in GB). The machine type is either 2107 or 1750; however, the MTM value can be any one of the following depending on your system:
2107-900
A standard 2107 volume.
1750-500
A standard 1750 volume.
xxxx-A0x
The xxxx is 2107 or 1750; the A0 indicates a System i® protected volume (for example, 2107-A01 or 1750-A07).
xxxx-A8x
The xxxx is 2107 or 1750; the A8 indicates a System i unprotected volume (for example, 2107-A81 or 1750-A87).
Datatype
The volume data type setting. One of the following values is displayed:
  • FB 512
  • FB 512T
  • FB 520P
  • FB 520U
Addrgrp
The address group that contains the designated volume object. An address group ID is one hexadecimal character ( 0 - F ).
Extpool
The extent pool ID. Volume extents are allocated from this extent pool ID.
Note: Volumes that belong to an encrypted extent pool are encrypted. You can see the key group of an extent pool by using the lsextpool -l, or showextpool commands.
Exts
The number of real and virtual extents that are used by the designated volume ID.
Captype
The capacity unit type that is used at volume creation. One of the following values is displayed:
ESS
The capacity unit is decimal gigabytes (GB).
DS
The capacity unit is gigibytes (GiB).
DS/ESS
The capacity unit is gigibytes (GiB) or decimal gigabytes (GB).
Blocks
The capacity unit 512 B.
iSeries
The capacity unit was not specified at volume creation. This fixed block volume was created for IBM Z® systems.
cap (MiB)

The size of volume that is available for host system access in MiB(220B).

Cap (2^30B)
The size of the volume that is available for host system access in gibibytes GiB(230B).
Note: " - " is displayed if the capacity unit type of the volume is ESS (captype=ESS)
Cap (10^9B)
The size of volume that is available for host system access in decimal gibibytes GiB(109B).
Note: " - " is displayed if the capacity unit type of the volume is DS (captype=DS)
Cap blocks
The quantity of volume logical blocks that are available for host system access.
Volgrp
The volume groups (excluding default volume groups) that a volume belongs to.
Multiple volume groups that are associated with the volume are separated by a comma.
A " - " displays if no volume groups exist that are associated with the volume.
Unknown displays if information about the volume groups is not available.
Ranks
The number of ranks that the volume resides on.
SAM
The storage allocation method. The following values are displayed:
standard
Designates that the system fully allocated the volume with real extents at volume creation time.
tse
Designates that a track space-efficient logical volume contains a set of virtual extents that are associated with the space-efficient storage in the same extent pool. Physical space for a given logical track on a track space-efficient logical volume is dynamically allocated and deallocated from the repository in the space-efficient storage.
Note: Track space-efficient (TSE) repositories are required to create TSE volumes. However, starting with DS8000® Release 8, TSE repositories can no longer be created.
ese
Designates that an extent space efficient logical volume is provisioned with a set of virtual extents that are associated with the space efficient storage in the same extent pool. Physical space for an extent space efficient logical volume is dynamically allocated and deallocated from the extent pool.
Repcapalloc
The allocated physical repository capacity of the track space-efficient storage. This value is calculated on the available repository capacity as a result of writes to the track space-efficient volume. This value is displayed in the format of X.Y, where X is in whole gibibytes (GiB) and Y represents tenths of a GiB, which is limited to a single digit (0 - 9). .
Note: A " - " value is displayed in this column.
EAM
The extent allocation method that is to be used if the volume is migrated or expanded. One of the following values is displayed:
legacy
Designates that the volume was created before the use of the current algorithm.
rotateexts
The extents for each new logical volume are allocated across all available ranks, and is also known as storage-pool striping. This value is the default.
rotatevols
The extents for each new logical volume are allocated from each successive rank. This means that the extents for a particular volume will be allocated from one rank, while the extents for the next volume will be allocated from the next successive rank, and so on.
managed
The extents are currently managed by Easy Tier®, and the extents for any new volumes are initially allocated across all available ranks in the lowest tier of storage.
" - "
The value " - " is displayed if the extent allocation method does not apply, for example, track space-efficient logical volumes.
Reqcap (blocks)
The requested quantity of volume logical block (for example, 3339).
realextents
The number of real extents that are used by the logical volume.
virtualextents
The number of virtual extents that are used by the logical volume.
realcap(MiB)
The number of real capacity that is used by the logical volume in MiB(220B.
migrating
The number of extents for this volume that are currently being migrated.
migratingcap(MiB)
The capacity for this volume that is being migrated in MiB(220B.
migratingfrom
A list of one or more extent pool IDs where the extents are migrating from. If no migrating extents exist, a dash "-" is displayed. Unknown is displayed if information about the extent pool IDs is not available.
perfgrp
The performance group ID that the volume is assigned to. The performance group ID begins with the letters PG and ends with a decimal number.
resgrp
The resource group ID that the volume is assigned to. The resource group ID begins with the letters RG and ends with a decimal number.
tierassignstatus
Status of assigning a volume to a target tier.
Assign Pending
An assign action was specified, but has not started.
Assign Pending Hardware
An assign action was specified, but not started because of a hardware condition.
Assigning
An assign action is in progress.
Assigned
The volume was assigned to the specified tier.
Unassign Pending
An unassign action was specified, but has not started.
Error
An assign action failed. See the tierassignerror value for the reason.
Unknown
An assign action was specified, but the specific action is unknown.
" - "
No assign action was specified (none).
tierassignerror
Failure reason if assign action status is Error.
Easy Tier not active
Easy Tier is not active. See the etmanaged column from lsextpool to view whether the volume is in a pool that is managed by Easy Tier.

Use manageckdvol -action tierunassign to unassign the volume, ensure that the pool is managed by Easy Tier (see chsi), and then use manageckdvol -action tierassign to assign the volume again.
Target Tier not available
The specified target tier does not currently exist. Use manageckdvol -action tierunassign to unassign the volume, ensure that space is available on the specified tier, and then use manageckdvol -action tierassign to assign the volume again.
Tier definitions have changed
The target tier was valid, but defined tiers changed internally and the target tier is no longer valid. Use manageckdvol -action tierunassign to unassign the volume, and then use manageckdvol -action tierassign to assign the volume again.
" - "
The assign status is not Error.
tierassignorder
The method that is used to define the assigning order.
Access
Assign extents only when accessed.
ETdata
Assign high usage extents first, based on Easy Tier data.
Unknown
Unknown assigning order method.
" - "
No assign action was specified.
tierassigntarget
Assign action target tier.
FlashTier0
The tier of high performance flash drives.
FlashTier1
The first tier of high capacity flash drives.
FlashTier2
The second tier of high capacity flash drives.
ENT
Enterprise tier that consists of drives with speeds of 10K RPM, 15K RPM, or a mixtures of 10K RPM and 15K RPM speeds.
NL
Nearline tier consists of high-volume disks that are either SATA or SAS Nearline drives.
HDDExclude
Any tier except Enterprise (ENT) or Nearline (NL).
NLExclude
Enterprise tiers but not a Nearline tier.
" - "
No assign action was specified.
%tierassigned
The percentage of the provisioned capacity that is assigned. The value is 0 (zero) if the volume is not assigned to a tier.
etmonpauseremain
The pause in Easy Tier monitoring. One of the following values is displayed:
0H1M-168H0M
The time (in hours and minutes) that remains of the pause in the Easy Tier monitoring process.
infinite
Easy Tier monitoring remains paused until a resume action is submitted.
-
The dash (-) specifies that Easy Tier monitoring is not paused.
unknown
The system failed to query the time that remains of the pause.
etmonitorreset
Easy Tier extent pool monitoring reset date is as follows.
date
The date of the last Easy Tier monitoring reset in ISO 8601 format: yyyy-MM-dd’T’HH:mm:ssZ, where
yyyy
Year
MM
Month (01-12)
dd
Day (01-31)
T
Single letter T without quotes
HH
Hour (00-23)
mm
Minutes (00-59)
ss
Seconds (00-59)
Z
Time zone offset from UTC [-HHmm | +HHmm]
unknown
The date in which Easy Tier monitoring of this extent pool was last reset is not known.
unsupported
Easy Tier extent pool management is not supported.
GUID
The GUID (Globally Unique Identifier): The NAA (Network Addressing Authority) unique value that identifies a volume object.
safeguarded
Whether Safeguarded Copy is enabled for the specified volume.
safeguardedcap(cyl)
The amount of safeguarded backup capacity that is reserved for Safeguarded Copies.
safeguardedcapstate
The state of the volume that contains safeguarded virtual capacity for the volume.
Normal
No volume expansion operations are in progress.
Configuration error
The initial configuration did not complete successfully. This state reflects an internal error condition and not an error in the request to create the volume. If you have a volume in this state, use the rmfbvol command to delete each volume that is listed with the configuration state of "configuration error".
Configuring
The volume is in the process of being configured for the first time.
Deconfiguring
The volume is being deleted.
Deconfiguration error
A request to delete a volume did not complete successfully. This state reflects an internal error condition and not an error in the request to remove the volume. To correct this state, you must reissue the rmfbvol command for the designated volume.
Expanding
The volume is expanding.
Global inaccessible
The global metadata that is associated with the volume configuration is inaccessible. Some of the data that is associated with the volume might be inaccurate. The access state is fenced.
Global lost data
Global metadata that is associated with the volume configuration was lost. As a result, some of the data that is associated with the volume might be inaccurate. The access state is fenced.
Inaccessible
One or more extents that are associated with the volume are on a rank that is in the inaccessible data state. The access state is fenced.
Indeterminate data loss
The following data states do not apply and that one of the following conditions occurred:
Data states that do not apply:
  • Rank failed
  • Rank repairing
  • Rank repaired
  • Global inaccessible
  • Global lost data
Conditions - one of the conditions occurred:
  • Committed write data was lost before it was destaged and the track identifiers that are associated with the data are unknown.
  • Data was lost that indicates that extents on the volume were active FlashCopy targets.

The access state is fenced.

Merging
The volume is merging. For example, merging from one extent pool to a different extent pool.
Migrating
The volume is migrating, or waiting to be migrated.
Migration Cancelled
The volume was migrating and then the ‘migcancel' action of the manageckdvol command was issued. Some of the extents were waiting to be migrated in the source pool while other extents already migrated to the target pool. Migration stopped, and cannot be resumed. If you have a volume in this state, try to migrate it again to the original source or target extent pool.
Migration Error
The volume migration process failed to complete successfully. This state reflects an internal error condition and not an error in the request of the user to migrate a volume. If you have a volume in this state, try to migrate it again to the original source or target extent pool.
Migration Paused
The volume was migrating and then the ‘migpause' action of the manageckdvol command was issued. Migration stopped, but can be resumed.
NVS data inaccessible
Active NVS data is inaccessible for one or more logical volumes of an LSS group. The logical volumes in the LSS group cannot be made accessible. The access state is fenced.
Rank failed
One or more extents that are associated with the volume are on a rank that is in the Failed data state. The access state is Fenced. This data state transitions to the Rank repairing state if the rank transitions to the Rank repairing state through use of the repair array function.
Rank Repaired
One or more extents that are associated with the volume are on ranks that were in the repairing state, but are not in the repairing state now. The access state is fenced.
Rank Repairing
One or more extents that are associated with the volume are on ranks in the repairing data state. The access state is fenced.
Read only
The logical volume is read only because one or more extents on the volume are on a rank in the read only data state. The access state is Online.
Reconfiguration error
The reconfiguration request did not complete successfully.
Reconfiguring
The volume is allocating or deallocating extents due to a modification of the requested capacity attribute after initial creation.
Transposition Error
The volume is in an extent pool that was unsuccessfully merged. This state reflects an internal error condition. Corrective action Use the chextpool command with the -merge parameter again to redrive the merge extent pool and to correct this state.
Virtual space fault
The volume has a storage allocation method of track space-efficient. Not enough space was available to convert a virtual logical track to a real logical track. The access state is Online.
safeguardedloc
The pool where the Safeguarded Copies are written to.
SGC Recovered
Whether the volume has been recovered to a recovery volume.

Output definitions ( -rank parameter specified)

Rank (Rank Extent table)
The rank ID.
Extents (Rank Extents table)
The number of extents for the volume on the rank.
Capacity(MiB)(Rank Extents table)
The capacity for the volume on the rank in MiB (220B).

Example: Showing performance metrics

The following tables represent the headers that are displayed on the output reports that are associated with the showfbvol command using the -metrics parameter.

dscli> showfbvol -metrics IBM.2107-75FA120/0101
Output
ID Date
norm
rdrqts
norm
rdhits
norm
write
req
norm
write
hits
seq
read
reqs
seq
read
hits
seq
write
req
IBM.2107-75FA120/0101
10/11
/04
02:23:49
10000 10000 10000 10000 10000 10000 10000
seqwrite-
hits
cachfwr-
reqs
cachfwr-
hits
cachfw-
reqs
cachfw-
hits
inbcach-
load
bypass-
cach
seq
DASD
trans
10000 10000 10000 10000 10000 10000 10000 10000
DASD-
trans
cache-
trans
NVS-
spadel
norm
write
ops
seqwrite-
ops
rec
cache
mis
qwrite-
prots
CKDir-
trkac
10000 10000 10000 10000 10000 10000 10000 0
CKD
irtrk
hits
cachsp-
delay
timelow-
ifact
phread phwrite phwrite
phbyte-
read
phbyte-
writ
0 10000 10000 10000 10000 10000 10000 10000
recmo-
reads
sfile
trk
reads
contam-
wrts
PPRC-
trks
NVS-
spallo
time-
phread
timeph-
write
byte-
read
10000 0 0 10000 10000 10000 10000 10000
bytewrit timeread timewrite zHPFRead zHPFWrite
10000 10000 10000 - -
zHPFPrefetchReq zHPFPrefetchHit
GMCollisions-
SidefileCount
GMCollisions-
SendSyncCount
0 0 0 0

Output definitions ( -metrics parameter specified)

ID
The unique identifier that is assigned to this volume object.
Date
The current time stamp for the volume performance counters.
normrdrqts
Search/Read Normal I/O Requests.
normrdhits
Search/Read Normal I/O Requests instances.
normwritereq
Write Normal I/O Requests.
normwritehits
DASD Fast Write I/O Request instances.
seqreadreqs
Search/Read Sequential I/O Requests.
seqreadhits
Search/Read Sequential I/O Request instances.
seqwritereq
Write Sequential I/O Requests.
seqwritehits
DASD Fast Write Sequential I/O Request instances.
cachfwrreqs
Search/Read Cache Fast Write I/O Requests.
cachfwrhits
Search/Read Cache Fast Write I/O Request instances.
cachfwreqs
Cache Fast Write I/O Requests.
cachfwhits
Cache Fast Write I/O Requests instances.
inbcachload
Inhibit Cache Loading I/O Requests that operate with DASD.
bypasscach
Bypass Cache I/O Requests.
seqDASDtrans
Sequential DASD to Cache Transfer Operations.
DASDtrans
DASD to Cache Transfer Operation Count.
cachetrans
Cache to DASD Transfer Operation Count.
NVSspadel
DASD Fast Write Operations Delayed Due to nonvolatile storage Space Constraints.
normwriteops
Normal ‘DASD Fast Write' Write Operation Counts.
seqwriteops
Sequential Access ‘DASD Fast Write' Write Operation Counts.
reccachemis
Number of record cache Read Misses.
qwriteprots
Quick Write Promotes.
CKDirtrkac
Irregular Track Accesses. The value 0 (zero) is displayed for a fixed block volume.
CKDirtrkhits
Irregular Track Accesses instances. The value 0 (zero) is displayed for a fixed block volume.
cachspdelay
Operations Delayed Due To Cache Space Constraints.
timelowifact
The milliseconds of lower interface I/O activity for the indicated device.
phread
Physical Storage Read Operations.
phwrite
Physical Storage Write Operations.
phbyteread
Physical Storage Bytes Read in 128 KB increments.
phbytewrit
Physical Storage Bytes Written in 128 KB increments.
recmoreads
Record Mode Read Operations.
sfiletrkreads
The number of tracks that are read from the Concurrent Copy or XRC Sidefile. The value 0 (zero) is displayed for a fixed block volume.
contamwrts
The Number of Contaminating writes for a Concurrent Copy or XRC volume. The value 0 (zero) is displayed for a fixed block volume.
PPRCtrks
The number of tracks or portion of tracks that were transferred to the secondary device of a PPRC pair.
NVSspallo
The NVS Space Allocations.
timephread
The Physical Storage Read Response Time in 16 ms increments.
timephwrite
The Physical Storage Write Response Time in 16 ms increments.
byteread
The number of Bytes read in 128 KB increments.
bytewrit
The number of Bytes written in 128 KB increments.
timeread
The accumulated response time for all read operations.
timewrite
The accumulated response time for all write operations.
zHPFRead
The HPF Read I/O Requests for volume performance statistics.
zHPFWrite
The HPF Write I/O Requests for volume performance statistics.
zHPFPrefetchReq
The number of HPF Pre-fetch I/O requests.
zHPFPrefetchHit
The number of HPF Pre-fetch I/O request hits.
GMCollisionsSidefileCount
The number of Global Mirror Collisions sidefile.
GMCollisionsSendSyncCount
The number of Global Mirror Collisions Send Synchronous Count.

Example: Showing tier statistics

dscli> showfbvol -tier 0000
Output
Name              myvol0800
ID                0800
accstate          Online
datastate         Normal
configstate       Normal
...
migrating         20
perfgrp           PG0
migratingfrom     P0
resgrp            RG1
tierassignstatus  Assigning
tierassignerror   -
tierassignorder   ETdata
tierassigntarget  FlashTier0
%tierassigned     54
etmonpauseremain  1H44M
etmonitorreset    2013-07-26T14:00:00+07
=============== Tier Distribution =================
Tier %allocated
======================
FlashTier0     54
ENT            46

Ouput definitions ( -tier parameter is specified)

Tier
Tier ID
FlashTier0
The tier of high performance flash drives.
FlashTier1
The first tier of high capacity flash drives.
FlashTier2
The second tier of high capacity flash drives.
ENT
Enterprise tier, which consists of drives with speeds of 10K RPM, 15K RPM, or a combination of drives of both speeds.
NL
Nearline tier, which consists of high volume SATA or SAS Nearline disk drives.
Unknown
Tier is unknown.
%allocated
The percentage of provisioned capacity on this tier.

Example 4: Using the -pathgrp parameter

If you specify the -pathgrp parameter and no path groups exist for this volume, the following message is displayed.
CMUC00234I lsfbvol: No Path Groups found.
If you specify the -pathgrp parameter and path groups exist for this volume, a path group status table is appended to the resulting output.
dscli> showfbvol -pathgrp efff
Output
Name           efff
ID             EFFF
accstate       Online
datastate      Normal
configstate    Normal
...
migrating      0
perfgrp        PG31
migratingfrom  -
resgrp         RG62
==========================Path Group status========================
GroupID                  State       Reserve    Mode        Sysplex
===================================================================
800002B9472827CA78BC17   Ungrouped   Disabled   Single      N/A
880005B9472827CAAD6FBA   Grouped     Disabled   Multi-path  N/A
800009B9472827CAC684B9   Ungrouped   Disabled   Single      PLEXM1

Output definitions ( -pathgrp parameter is specified)

GroupID
The path group ID. An 11-byte value that is displayed as 22 hexadecimal characters.
Note: The path group ID is supplied by the host and is not interpreted further by the storage system. This means that the hosts are free to define, or redefine, the meaning of this value with no impact to the storage system. However, some programs such as ICKDSF break drown the ID into distinct fields with the following partial display of the ICKDSF logical path status table.
+---------------------------+-
|       PATH GROUP ID       | ...
|------+------+----+--------+-
|      |      |CPU |CPU TIME|
|  ID  |SERIAL|TYPE|  STAMP | ... 
+------+------+----+--------+-
|800002|B947  |2827|CA78BC17| ...
+------+------+----+--------+-
|880005|B947  |2827|CAAD6FBA| ...
+------+------+----+--------+-
|800009|B947  |2827|CAC684B9| ...
+------+------+----+--------+-
For more information, see ICKDSF User's Guide and Reference.
State
The grouped state of this path group. Valid state values are Grouped or Ungrouped.
Reserve
The reserved state of this path group. Valid state values are Enabled or Disabled.
Mode
The path mode for this path group. Valid mode values are Single or Multi-path.
Sysplex
The z/OS® sysplex name. If the name is not set or available, N/A is displayed.

Example 5: Using the -reserve parameter

If you specify the -reserve parameter and there are no SCSI reservations for this volume, the following message is displayed.
CMUC00234I lsfbvol: No SCSI reservations found.
If you specify the -reserve parameter and SCSI reservations exist for this volume, the SCSI reservation attributes and a SCSI reserve port table is appended to the resulting output.
dscli> showfbvol -reserve 0200
Output
ID              0200
accstate        Online
datastate       Normal
configstate     Normal
...
migrating       0
perfgrp         PG0
migratingfrom   -
resgrp          RG0
========SCSI Reserve Status========
PortID WWPN               ReserveType
===================================
I0040  500507630310003D   Persistent
I0041  500507630310403D   Persistent
-      50050763080805BB   Persistent
-      50050763080845BB   Persistent

Output definitions ( -reserve parameter is specified)

PortID
The I/O port ID. If the host is online, then the I/O port ID is displayed and is formatted as a leading uppercase letter "I" followed by four hexadecimal characters (for example, I0040). If the host is not online, the field contains a ‘-‘ (dash).
WWPN
The worldwide port name that is displayed as 16 hexadecimal characters.
ReserveType
The SCSI reservation type for all connections. Valid reservation types are Traditional, Persistent, or PPRC.