Hp Hitachi Dynamic Link Manager Software Uživatelský manuál stáhnout pdf (Strana 51)

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2. HDLM Functions

Figure 2-10: Path Switching

(2) Automatic Failbacks

When a path recovers from an error, HDLM can automatically place the recovered

path back online. This function is called the automatic failback function. In order to

use the automatic failback function, HDLM must already be monitoring error recovery

on a regular basis.

When using the Thunder 9500V series, or Hitachi AMS/WMS series, HDLM will

select the next path to be used first from among the online owner paths, and then from

the online non-owner paths. As a result, if an owner path recovers from an error, and

then HDLM automatically places the recovered path online while a non-owner path is

in use, the path will be automatically switched over from the non-owner path to the

owner path that just recovered from the error.

When the Lightning 9900 series, Lightning 9900V series, Hitachi USP, Universal

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