Acopia Networks 810-0044-00 Installationshandbuch PDF herunterladen (Seite 441)

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101

Migrating Filesets

Changing Rule Order

CLI Storage-Management Guide 14-23

Removing the Placement Rule

You can remove a placement rule to both disable it and delete its configuration. Many

file-placement rules can manipulate directory mastership so that directory trees grow

naturally on desired filers. If all directory masters are placed correctly, the managed

volume creates new files and directories under them by default; the file-placement

rule is no-longer needed.

Use the no form of the

place-rule command to remove a placement rule:

no place-rule name

where name (1-64 characters) identifies the rule to be removed.

For example, the following command sequence removes the placement rule,

“placeOnSAN19,” from the “medarcv~/rcrds” volume:

bstnA6k(gbl)# namespace medarcv

bstnA6k(gbl-ns[medarcv])# volume /rcrds

bstnA6k(gbl-ns-vol[medarcv~/rcrds])# no place-rule placeOnSAN19

bstnA6k(gbl-ns-vol[medarcv~/rcrds])# ...

If the rule matches files and/or directories based on their names and/or ages instead of

their paths, you may want to keep the rule indefinitely. The file-placement rule can

continue to match against newly-created files/directories, steering them as needed. It

can also re-assess existing files/directories as they age, or as clients change them, and

migrate them as needed.

Changing Rule Order

The policy software enforces its rules in order. Whenever two rules conflict, the

higher-order rule is enforced and the lower-order rule is not. Conflicts arise for files

and/or directories that match two different rules; each rule may attempt to place the

file or directory on a different target. By default, rules are ordered on a

first-come-first-served basis; the first rule you enter is of the highest order, and the

last rule is the lowest order.

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