HP StorageWorks Storage Mirroring Recover User's Guide (T5437-96008, November 2009)

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Replication capabilities
Storage Mirroring Recover replicates file and directory data stored on any Windows file
system (FAT, FAT32, NTFS4, and NTFS5). Replicated items also include Macintosh
files, compressed files, NTFS attributes and ACLs (access control list), dynamic
volumes, files with alternate data streams, sparse files, and encrypted files. Files can be
replicated across mount points, even though mount points are not created on the target.
Some reparse points are replicated, including CommVault Data Migrator and
BridgeHead Software HT FileStore.
Storage Mirroring Recover does not replicate items that are not stored on the file system,
such as physical volume data and registry based data. Additionally, Storage Mirroring
Recover does not replicate NTFS extended attributes, registry hive files, Windows or
any system or driver pagefile, system metadata files ($LogFile, $Mft, $BitMap,
$Extend\\$UsnJrnl, $Extend\\$Quota, $Extend\\$ObjId, and $Extend\\$Reparse), hard
links, or the Storage Mirroring Recover disk-based queue logs. The only exception to
these exclusions is for the full-server workloads. If you are protecting your system state
and data using full-server protection, Storage Mirroring Recover will automatically gather
and replicate all necessary system state data, including files for the operating system
and applications.
Note the following replication caveats.
1. If you have mixed file systems, keep in the mind the following.
a. If, on your source, you have a FAT volume mounted on a directory which
resides on an NTFS volume, these files will not be mirrored, regardless of the
target file system. Replication will work correctly. To work around this issue,
make sure both volumes are NTFS.
b. If you are mirroring/replicating from an NTFS source to a FAT target, you may
see additional error messages in your Storage Mirroring Recover log file
because the target file system cannot handle the NTFS attributes or file
permissions. For example, if your replication set contains files with alternate
data streams, you will see messages indicating that there are unfinished
operations because the FAT file system cannot store the alternate data
stream information.
c. If you select a compressed file or folder from an NTFS partition and replicate
it to a FAT target, the attributes are lost, but the data is maintained.
2. If any directory or file contained in your replication set specifically denies
permission to the system account or the account running the Storage Mirroring
service, the attributes of the file on the target will not be updated because of the
lack of access. This also includes denying permission to the Everyone group
because this group contains the system account.