Hp Storage Mirroring Software Bedienungsanleitung PDF herunterladen (Seite 84)

7 - 3

Stopping and Pausing Mirroring

While a mirror is in progress, you can manually stop or pause the transmission of data to the target. The Storage Mirroring

connection will remain intact and the mirror data may or may not queue on the source depending on the option you choose.

! Pause and Resume—When pausing a mirror, Storage Mirroring stops queueing mirror data on the source but

maintains a pointer to determine what information still needs to be mirrored to the target. Therefore, when resuming

a paused mirror, the process continues where it left off.

! Stop and Start—When stopping a mirror, Storage Mirroring stops queueing mirror data on the source and does not

maintain a pointer to determine what information still needs to be mirrored to the target. Therefore, when starting a

mirror that has been stopped, the process will mirror all of the data contained in the replication set.

Orphan Files

An orphan is a file that exists in the target location but is not in the source location. An orphan can be created when you

delete a file contained in the source replication set while there is no Storage Mirroring connection. For example, if a

connection was made and a mirror was completed and then the connection was stopped and a file was deleted on the source,

an orphan file will exist on the target. Because the connection has been disconnected, the delete operation is not replicated

to the target and the file is not deleted.

The Storage Mirroring orphan feature allows you to move or delete orphan files that appear on the target but not on the

source. You can specify to move or delete all orphan files or to only those orphans that are older than a specified period of

time.

When the orphans feature is enabled, the target is checked for orphan files when a mirror, verify, or restore is performed.

You can also check for orphan files manually. The results of orphan processing is maintained in the LogViewer log files on the

target including the number of moved/deleted orphan files, the directories, and the number of bytes.

NOTE: Data integrity is not guaranteed until mirroring is complete.

NOTE: Since the orphans feature will (re)move all files that exist on the target location that are not on the source, if

you manually copy files and/or directories into the target location that are not also in the source location, these

files will be considered orphans and will be (re)moved. For example, suppose you have the following rules

defined in a replication set:

d:\ include, recursive

d:\users include, recursive

d:\data include, recursive

d:\temp exclude, recursive

Files or directories that exist on the target under d:\, \users, or \data that do not exist on the source will

be (re)moved. Since

\temp is specifically excluded, it is not considered an orphan.

The orphans feature does not move or delete alternate data streams. To do this, use a full mirror which will

delete the additional stream(s) when the file is re-created.

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 338 339

Keine Kommentare

Hp Storage Mirroring Software Bedienungsanleitung Seite 84