Rule definitions and attributes


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Rule definitions and attributes

You can use the info keyword to show a description of a rule.

See "Discovering what a rule does" on page 447.

Rule definitions in Storage Expert lists the available rule definitions, and rule attributes and their default values.

Rule definitions in Storage Expert

Rule	Description
vxse_dc_failures	Checks and points out failed disks and disabled controllers.
vxse_dg1	Checks for disk group configurations in which the disk group has become too large.
vxse_dg2	Checks for disk group configurations in which the disk group has too many or too few disk group configuration copies, and if the disk group has too many or too few disk group log copies.
vxse_dg3	Checks disk group configurations to verify that the disk group has the correct "on disk config" size.
vxse_dg4	Checks for disk groups that do not have a current version number, and which may need to be upgraded.
vxse_dg5	Checks for disk groups in which there is only one VxVM configured disk.
vxse_dg6	Checks for disk groups that are seen, but which are not imported.
vxse_disk	Checks for disks that are initialized, but are not part of any disk group.
vxse_disklog	Checks for physical disks that have more than one RAID-5 log.
vxse_drl1	Checks for large mirror volumes that do not have an associated DRL log.
vxse_drl2	Checks for large mirror volumes that do not have DRL log that is mirrored.
vxse_host	Checks that the system "hostname" in the `/etc/vx/volboot` file matches the hostname that was assigned to the system when it was booted.
vxse_mirstripe	Checks for large mirror-striped volumes that should be striped-mirrors.
vxse_raid5	Checks for RAID-5 volumes that are too narrow or too wide.
vxse_raid5log1	Checks for RAID-5 volumes that do not have an associated log.
vxse_raid5log2	Checks for recommended minimum and maximum RAID-5 log sizes.
vxse_raid5log3	Checks for large RAID-5 volumes that do not have a mirrored RAID-5 log.
vxse_redundancy	Checks the redundancy of volumes.
vxse_rootmir	Checks that all root mirrors are set up correctly.
vxse_spares	Checks that the number of spare disks in a disk group is within the VxVM "Best Practices" thresholds.
vxse_stripes1	Checks for stripe volumes whose stripe unit is not a multiple of the default stripe unit size.
vxse_stripes2	Checks for stripe volumes that have too many or too few columns.
vxse_volplex	Checks for volumes and plexes that are in various states, such as: disabled plexes detached plexes stopped volumes disabled volumes disabled logs failed plexes volumes needing recovery

You can use the list and check keywords to show what attributes are available for a rule and to display the default values of these attributes.

See "Running a rule" on page 447.

Rule attributes and default attribute values lists the available rule attributes and their default values.

Rule attributes and default attribute values

Rule	Attribute	Default value	Description
`vxse_dc_failures`	`-`	-	No user-configurable variables.
`vxse_dg1`	`max_disks_per_dg`	250	Maximum number of disks in a disk group. Warn if a disk group has more disks than this.
`vxse_dg2`	`-`	-	No user-configurable variables.
`vxse_dg3`	`-`	-	No user-configurable variables.
`vxse_dg4`	`-`	-	No user-configurable variables.
`vxse_dg5`	`-`	-	No user-configurable variables.
`vxse_dg6`	`-`	-	No user-configurable variables.
`vxse_disk`	-	-	No user-configurable variables.
`vxse_disklog`	-	-	No user-configurable variables.
`vxse_drl1`	`mirror_threshold`	1g (1GB)	Large mirror threshold size. Warn if a mirror is larger than this and does not have an attached DRL log.
`vxse_drl2`	`large_mirror_size`	20g (20GB)	Large mirror-stripe threshold size. Warn if a mirror-stripe volume is larger than this.
`vxse_host`	-	-	No user-configurable variables.
`vxse_mirstripe`	`large_mirror_size nsd_threshold`	1g (1GB) 8	Large mirror-stripe threshold size. Warn if a mirror-stripe volume is larger than this. Large mirror-stripe number of subdisks threshold. Warn if a mirror-stripe volume has more subdisks than this.
`vxse_raid5`	`too_narrow_raid5 too_wide_raid5`	4 8	Minimum number of RAID-5 columns. Warn if actual number of RAID-5 columns is less than this. Maximum number of RAID-5 columns. Warn if the actual number of RAID-5 columns is greater than this.
`vxse_raid5log1`	-	-	No user-configurable variables.
`vxse_raid5log2`	`r5_max_size r5_min_size`	1g (1GB) 64m (64MB)	Maximum RAID-5 log check size. Warn if a RAID-5 log is larger than this. Minimum RAID-5 log check size. Warn if a RAID-5 log is smaller than this.
`vxse_raid5log3`	`large_vol_size`	20g (20GB)	Large RAID-5 volume threshold size. Warn if a RAID-5 volume with a non-mirrored RAID-5 log is larger than this.
`vxse_redundancy`	`volume_redundancy`	0	Volume redundancy check. The value of 2 performs a mirror redundancy check. A value of 1 performs a RAID-5 redundancy check. The default value of 0 performs no redundancy check.
`vxse_rootmir`	`-`	-	No user-configurable variables.
`vxse_spares`	`max_disk_spare_ratio min_disk_spare_ratio`	20 10	Maximum percentage of spare disks in a disk group. Warn if the percentage of spare disks is greater than this. Minimum percentage of spare disks in a disk group. Warn if the percentage of spare disks is less than this.
`vxse_stripes1`	`default _stripeunit`	8k (8KB)	Stripe unit size for stripe volumes. Warn if a stripe does not have a stripe unit which is an integer multiple of this value.
`vxse_stripes2`	`too_narrow_stripe too_wide_stripe`	3 16	Minimum number of columns in a striped plex. Warn if a striped volume has fewer columns than this. Maximum number of columns in a striped plex. Warn if a striped volume has more columns than this.
`vxse_volplex`	-	-	No user-configurable variables.


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