File System Elements; File Sharing Elements; Volume Shadow Copy Service Overview; Using Storage Elements - HP StoreEasy 1000 Administrator's Manual

reads and writes apply when using fault-tolerant configurations, as is the case with controller-based
RAID. These volumes can also be assigned drive letters or be mounted as mount points off
existing drive letters.
The administrator should carefully consider how the volumes will be carved up and what groups
or applications will be using them. For example, putting several storage-intensive applications
or groups into the same dynamic disk set would not be efficient. These applications or groups
would be better served by being divided up into separate dynamic disks, which could then grow
as their space requirements increased, within the allowable growth limits.

File system elements

File system elements are composed of the folders and subfolders that are created under each
logical storage element (partitions, logical disks, and volumes). Folders are used to further
subdivide the available file system, providing another level of granularity for management of the
information space. Each of these folders can contain separate permissions and share names
that can be used for network access. Folders can be created for individual users, groups, projects,
and so on.

File sharing elements

The HPE StoreEasy 1000 Storage system supports several file sharing protocols, including
Network File System (NFS), File Transfer Protocol (FTP), Hypertext Transfer Protocol (HTTP),
and Microsoft Server Message Block (SMB). On each folder or logical storage element, different
file sharing protocols can be enabled using specific network names for access across a network
to a variety of clients. Permissions can then be granted to those shares based on users or groups
of users in each of the file sharing protocols.

Volume Shadow Copy Service overview

The Volume Shadow Copy Service (VSS) provides an infrastructure for creating point-in-time
snapshots (shadow copies) of volumes. VSS supports 64 shadow copies per volume.
Shadow Copies of Shared Folders resides within this infrastructure, and helps alleviate data loss
by creating shadow copies of files or folders that are stored on network file shares at
pre-determined time intervals. In essence, a shadow copy is a previous version of the file or
folder at a specific point in time.
By using shadow copies, the HPE StoreEasy 1000 Storage system can maintain a set of previous
versions of all files on the selected volumes. End users access the file or folder by using a separate
client add-on program, which enables them to view the file in Windows Explorer.
Shadow copies must not replace the current backup, archive, or business recovery system, but
they can help to simplify restore procedures. For example, shadow copies cannot protect against
data loss due to media failures; however, recovering data from shadow copies can reduce the
number of times needed to restore data from tape.

Using storage elements

The last step in creating the element is determining its drive letter or mount point and formatting
the element. Each element created can exist as a drive letter, assuming one is available, and/or
as mount points on an existing folder or drive letter. Either method is supported. However, mount
points cannot be used for shares that will be shared using Microsoft Services for Unix. They can
be set up with both but the use of the mount point in conjunction with NFS shares causes instability
with the NFS shares.
120 Storage management overview