vxinfo

NAME

vxinfo - print accessibility and usability of volumes

SYNOPSIS

DESCRIPTION

The vxinfo utility reports a usage-type-dependent condition on one or more volumes in a disk group. A report for each volume specified by the volume operand is written to the standard output. If no volume operands are given, then a volume condition report is provided for each volume in the selected disk group.

Each invocation can be applied to only one disk group at a time.

OPTIONS

-g diskgroup

Specify the disk group for the operation, either by disk group ID or by disk group name. If this option is not specified, the default disk group is determined using the rules given in the vxdg(1M) manual page.

-o useopt

Pass in usage-type-specific options to the operation.

-p

Report the name and condition of each plex in each reported volume.

-U usetype

Specify the usage type for the operation. If no volume operands are specified, then the output is restricted to volumes with this usage type. If volume operands are specified, then this results in a failure message for all named volumes that do not have the indicated usage type.

-V

Write a list of utilities that would be called from vxinfo, along with the arguments that would be passed. The -V performs a preview run so the utilities are not actually called.

VOLUME CONDITIONS

The volume condition is a usage-type-dependent summary of the state of a volume. This condition is derived from the volume's kernel-enabled state and the usage-type-dependent states of the volume's plexes. The vxinfo utility reports the following conditions for volumes:

Startable

A vxvol startall operation would likely succeed in starting the volume.

Started

The volume has been started and can be used.

Started Unusable

The volume has been started but is not operationally accessible. This condition may result from errors that have occurred since the volume was started, or may be a result of administrative actions, such as vxdg -k rmdisk.

Unstartable

The volume is not started and either is not correctly configured or doesn't meet the prerequisites for automatic startup (with volume startup) because of errors or other conditions.

OUTPUT FORMAT

Summary reports for each volume are printed in one-line output records. Each volume output line consists of blank-separated fields for the volume name, volume usage type, and volume condition. The following example shows the volume summary:

Each plex output line consists of blank-separated fields for the plex name and the plex condition. The plex records are accompanied by their volume records, as the following example shows:

FSGEN AND GEN USAGE TYPES

The fsgen and gen usage types provide identical semantics for the vxinfo utility. The fsgen and gen usage types do not support any options passed in with -o. Plex conditions (reported with -p) can be one of the following:

ACTIVE

Either the volume is started and the plex is enabled, or the volume was not stopped cleanly and the plex was valid when the volume was stopped.

CLEAN

The plex contains valid data and the volume was stopped cleanly.

DCOSNP

A data change object (DCO) plex that is attached to a volume, and which can be used by a snapshot plex to create a DCO volume during a snapshot operation.

EMPTY

The plex is part of a volume that has not yet been initialized.

IOFAIL

The plex was detached because of an uncorrectable I/O failure on one of the subdisks in the plex.

LOG

A dirty region logging (DRL) or RAID-5 log plex.

NODAREC

No physical disk was found for one of the subdisks in the plex. This implies either that the physical disk failed, making it unrecognizable, or that the physical disk is no longer attached through a known access path.

NODEVICE

A physical device could not be found corresponding to the disk ID in the disk media record for one of the subdisks associated with the plex. The plex cannot be used until this condition is fixed, or the affected subdisk is dissociated.

OFFLINE

The plex was disabled using the vxmend off operation.

REMOVED

A physical disk used by one of the subdisks in the plex was removed through administrative action with vxdg -k rmdisk.

SNAPATT

The plex is being attached as part of a backup operation by the vxassist snapstart operation. When the attach is complete, the condition changes to SNAPDONE. A system reboot or manual starting of the volume removes the plex and all of its subdisks.

SNAPDIS

A vxassist snapstart operation completed the process of attaching the plex. It is a candidate for selection by the vxplex snapshot operation. A system reboot or manual starting of the volume dissociates the plex.

SNAPDONE

A vxassist snapstart operation completed the process of attaching the plex. It is a candidate for selection by the vxassist snapshot operation. A system reboot or manual starting of the volume removes the plex and all of its subdisks.

SNAPTMP

The plex is being attached as part of a backup operation by the vxplex snapstart operation. When the attach is complete, the condition changes to SNAPDIS. A system reboot or manual starting of the volume dissociates the plex.

STALE

The plex does not contain valid data, either as a result of a disk replacement affecting one of the subdisks in the plex, or as a result of an administrative action on the plex such as vxplex det.

TEMP

The plex is associated temporarily as part of a current operation, such as vxplex cp or vxplex att. A system reboot or manual starting of a volume dissociates the plex.

TEMPRM

The plex was created for temporary use by a current operation. A system reboot or manual starting of a volume removes the plex.

TEMPRMSD

The plex and its subdisks were created for temporary use by a current operation. A system reboot or manual starting of the volume removes the plex and all of its subdisks.

Volume conditions for these usage types are reported as follows:

Startable

This condition is reported if the volume is not enabled and if any of the plexes have a reported condition of ACTIVE or CLEAN.

Started

This condition is reported if the volume is enabled and at least one of the associated plexes is enabled in read-write mode (which is normal for enabled plexes in the ACTIVE and EMPTY conditions).

Started Unusable

This condition is reported if the volume is enabled, but the volume does not meet the criteria for being Started.

Unstartable

This condition is reported if the volume is not enabled, but the volume does not meet the criteria for being Startable.

RAID-5 USAGE TYPE

Plexes of RAID-5 volumes can be either data plexes (that is, RAID-5 plexes) or log plexes. RAID-5 data and log plex conditions are as follows:

ACTIVE

Either the volume is started and the plex is enabled, or the volume was not stopped cleanly and the plex was valid when the volume was stopped.

CLEAN

The plex contains valid data and the volume was stopped cleanly. The raid5 usage type does not support any options passed in with -o.

IOFAIL

The plex was detached from use as a result of an uncorrectable I/O failure on one of the subdisks in the plex.

NODAREC

No physical disk was found for one of the subdisks in the plex. This implies either that the physical disk failed, making it unrecognizable, or that the physical disk is no longer attached through a known access path.

OFFLINE

The plex was disabled using the vxmend off operation.

REMOVED

A physical disk used by one of the subdisks in the plex was removed through administrative action with vxdg -k rmdisk.

RAID-5 data plexes can have these additional conditions:

DEGRADED

Due to subdisk failures, the plex is in degraded mode. This indicates a loss of data redundancy in the RAID-5 volume and any further failures could cause data loss.

STALEPRTY

The parity is not in sync with the data in the plex. This indicates a loss of data redundancy in the RAID-5 volume and any further failures could cause data loss.

UNUSABLE

This indicates that a double-failure occurred within the plex. The plex is unusable due to subdisk failures and/or stale parity.

Log plexes of RAID-5 volumes can have the following additional conditions:

BADLOG

The contents of the plex are not usable as logging data.

Volume conditions for volumes of the raid5 usage type are the same as for the fsgen and gen usage types (Startable, Unstartable, Started and Started Unusable). In addition, the following conditions can modify the conditions:

Degraded

This condition indicates that the RAID-5 plex of the volume is in degraded mode due to the unavailability of a subdisk in that plex.

Staleprty

This condition indicates that some of the parity in the RAID-5 plex is stale and requires recovery.

FILES

/usr/lib/vxvm/type/usetype/vxinfo

The utility that performs vxinfo operations for a particular volume usage type.

EXIT CODES

The vxinfo utility exits with a non-zero status if the attempted operation fails. A non-zero exit code is not a complete indicator of the problems encountered, but rather denotes the first condition that prevented further execution of the utility.

See vxintro(1M) for a list of standard exit codes.

SEE ALSO

vxassist (1M), vxintro (1M), vxmend (1M), vxplex (1M), vxsd (1M), vxvol (1M)