Hp Storage Mirroring Software Bedienungsanleitung PDF herunterladen (Seite 29)

Storage Mirroring Replicate requirements Page 28 of 214

where the encrypted file is located is out of space, when it actually may be

the location where the temporary file is trying to be created that is out of disk

space.

6. If you are using mount points, keep in mind the following.

a. By default, the mount point data will be stored in a directory on the target.

You can create a mount point on the target to store the data or maintain the

replicated data in a directory. If you use a directory, it must be able to handle

the amount of data contained in the mount point.

b. Recursive mount points are not supported. If you select data stored on a

recursive mount point, mirroring will never finish.

7. Storage Mirroring Replicate supports transactional NTFS (TxF) write operations,

with the exception of TxF SavePoints (intermediate rollback points).

a. With transactional NTFS and Storage Mirroring Replicate mirroring, data that

is in a pending transaction is in what is called a transacted view. If the

pending transaction is committed, it is written to disk. If the pending

transaction is aborted (rolled back), it is not written to disk.

During a Storage Mirroring Replicate mirror, the transacted view of the data

on the source is used. This means the data on the target will be the same as

the transacted view of the data on the source. If there are pending

transactions, the Storage Mirroring Recover Target Data State will indicate

Transactions Pending. As the pending transactions are committed or

aborted, Storage Mirroring Replicate mirrors any necessary changes to the

target. Once all pending transactions are completed, the Target Data State

will update to OK.

If you see the pending transactions state, you can check the Storage

Mirroring Replicate log file for a list of files with pending transactions. As

transactions are committed or aborted, the list is updated until all transactions

are complete, and the Target Data State is OK.

b. During replication, transactional operations will be processed on the target

identically as they are on the source. If a transaction is committed on the

source, it will be committed on the target. If a transaction is aborted on the

source, it will be aborted on the target.

c. When failover occurs any pending transactions on the target will be aborted

before the source identity is assigned to the target.

d. Storage Mirroring Recover restore functions as a mirror, except the roles of

the source and target are reversed. The transacted view of the data on the

target is restored to the source. As pending transactions are committed or

aborted on the target, Storage Mirroring Recover restores any necessary

changes to the source. Once all pending transactions are completed, the

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