Hitachi XP P9500 User Manual page 55

Hitachi dynamic link manager software user's guide for linux (6.x) (hit5203-96004, october 2011)

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• All the paths connected to an LU are

• All the paths connected to an LU have been determined to have an

intermittent error.

• The processing of continuous I/O operations issued to an LU is successful.

When an Online or Offline(E) path exists among the paths that access the same

If there is only one available online path for an LU, it cannot be placed offline by

executing the

at least one path. For details on the

If an error occurs in the only available online path for an LU, the status of the path will

If you are using the automatic failback function, after the path has recovered from the

error, HDLM will automatically place the path online.

When you are using intermittent error monitoring, the path in which the intermittent

error occurred is not automatically placed online when the path recovers from the error.

In such a case, place the path online manually.

If there is a path failure immediately after a path is taken offline by using either

the an HDLM command, the status might change from

. If an offline operation was just performed, wait about 1 minutes,

check the path status by using an HDLM command, and then make sure that the

status has changed to

operation. This ensures that the LU can always be accessed by

operation, see 6.4 offline (Places Paths

. If it is still

2. HDLM Functions

, retry the offline

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