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HP Archive Backup System for OpenVMS Guide to Operations

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Migrating from SLS/MDMS V2.X <strong>to</strong> ABS/MDMS V4.X<br />

B.2 SLS/MDMS V2.x <strong>to</strong> ABS/MDMS V4.x Migration<br />

B.2.3.12 Pools<br />

B.2.3.13 Volumes<br />

Pools retain the same purpose <strong>for</strong> MDMS V3 as <strong>for</strong> SLS/MDMS V2. They are used <strong>to</strong> validate<br />

users <strong>for</strong> allocating free volumes. Pool authorization used <strong>to</strong> be defined through the old <strong>for</strong>ms<br />

interface.<br />

With MDMS V3, pool authorization is defined through the pool object. A pool object must be<br />

created <strong>for</strong> each pool in the domain.<br />

Pool objects have two main attributes: authorized users and default users. Both sets of users must<br />

be in the <strong>for</strong>m NODE::USERNAME or GROUP::USERNAME. A pool can support a maximum<br />

of 1024 characters of authorized and default users. An authorized user is an account using which<br />

the user can allocate free volumes from the pool. A default user is an account using which the<br />

user, in addition <strong>to</strong> allocating free volumes from the pool, can also specify that particular pool <strong>to</strong><br />

be used when a pool is not specified on allocation. As such, each default user must be specified<br />

in only one pool, whereas users can be authorized <strong>for</strong> any number of pools.<br />

The volume object is the most critical object <strong>for</strong> both MDMS V3 and MDMS V2. Nearly all of<br />

the attributes from MDMS V2 have been retained, although a few attributes have been renamed.<br />

When converting from MDMS V2 <strong>to</strong> MDMS V3, all volumes in the old volume database are recreated<br />

in the new MDMS V3 database. The following table lists attributes that are either not<br />

supported or <strong>for</strong> which the support is changed.<br />

Table B–2 Volume Attributes<br />

Old Name<br />

Density<br />

Flag<br />

Length<br />

Location<br />

Notes<br />

Offsite<br />

Onsite<br />

Other Side<br />

Side<br />

Slot<br />

Zero<br />

New Name/Support<br />

Unsupported, included in media type object<br />

State<br />

Unsupported, included in media type object<br />

Onsite Location<br />

Description<br />

Offsite Date<br />

Onsite Date<br />

Unsupported, obsolete feature with RV64 only<br />

Unsupported, obsolete feature with RV64 only<br />

Space<br />

Unsupported, can set counters individually<br />

You can create volumes in the MDMS V3 database using one of the following ways:<br />

• Using the CREATE VOLUME command (or GUI equivalent), you can explicitly create volumes<br />

in the database. This command gives you the maximum flexibility in specifying volume<br />

attributes.<br />

B–16 Migrating from SLS/MDMS V2.X <strong>to</strong> ABS/MDMS V4.X

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