Performing a Metadata Dump, Restrictions

			Chapter 6 Managing the File System
			Performing a Metadata Dump
		10 Mount the file system as described in Mounting or Unmounting a
			File System on page 108.
		When using affinities, the StorNext administrator must adhere to the file
	File System
Configuration		system configuration restrictions listed below to ensure that data
Restrictions		management policies execute properly. These restrictions apply only to
		managed file systems, not to non-managed (SNFS-only) installations.

			• Taking into account all managed file systems, you cannot use more
			than two unique affinity names. However, these two affinity names
			can be re-used across file systems.
			• All data stripe groups must have exactly one affinity association, but
			several stripe groups can be associated to the same affinity. This
			restriction does not apply to exclusive metadata or journal stripe
			groups.
			• At least one policy class must be created to use the configured
			affinities.

			Caution: You must designate at least one data stripe group in each
			managed file system as non-exclusive. If you do not make
			this designation, writing to the area of the file system that
			is not associated with any of the affinities will result in an
			out-of-space error.
			Deleting affinities from a file system configuration after
			the file system has been in use for a while could result in
			abnormal behavior. Contact the Quantum Technical
			Assistance Center before deleting affinities from a file
			system configuration.

Performing a Metadata Dump

This procedure replaces any existing metadata dump data for the selected file system, and should be run only if the metadata file has been lost or corrupted.

StorNext User’s Guide

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6-01658-05 specifications

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Quantum 6-01658-05 manual Performing a Metadata Dump, File System Configuration, Restrictions

Models: 6-01658-05

File System

Configuration

Restrictions

Performing a Metadata Dump

6-01658-05 specifications