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 103.

 

 

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.

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Quantum 6-01658-01 manual Performing a Metadata Dump, File System Configuration, Restrictions

6-01658-01 specifications

Quantum 6-01658-01 is a cutting-edge solution in the realm of quantum computing technology. This model is renowned for its advanced features and capabilities, making it an essential tool for researchers and industries seeking to harness the power of quantum mechanics for practical applications.

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