User`s guide

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Ahsay Universal Backup System
Administrator’s Guide
Ahsay Systems Corporation Limited 108
(October 17, 2013)
All
configured additional storage devices can be found in the page [ Storage ]
> [ Summary ]. After clicking the volume pie chart icon, details of the
additional storage will be displayed.
Additional Storage can be added when master storage LSFW runs out of space.
Once created, the additional storage can be used for storing more user
accounts data and their backup snapshots of AhsayOBS & AhsayRPS in this
AhsayUBS.
Supported types of the Additional Storage in AhsayUBS:
i. Modular Storage:
 Supports one or multiple physical block devices for building RAID0,
RAID1 and RAIDZ in ZFS from local storage.
 Supports one remote disk (i.e. iSCSI target) to build a RAID 0 ZFS
remote storage.
ii. Expandable Storage: Created with an iSCSI initiator session and hardware
RAID volumes. One iSCSI initiator session (one provider) can support
creating an expandable storage only. Since iSCSI target / hardware RAID
volume can be expanded, the entire disk will be consumed by a single
ZPOOL. The creation of the expandable storage will not be supported in
the current and further releases of AhsayUBS.
iii. Optional Storages (previously named Optional Labelled Device) in UFS
format created in the previous releases of AhsayUBS are also supported,
but the creation of new UFS format Optional Storage is not supported as
of AhsayUBS v2.1.0.0
8.4.2.2 Create Additional Storage
Additional Storage can be added by clicking the
icon in the
[ Storage ] > [ Summary ] page. If there are no available providers for
creating the additional storage, the
icon will be hidden.
AhsayUBS admin may either:
i. Shutdown AhsayUBS and insert the block devices. Power on AhsayUBS
on again. or
ii. Connecting to the iSCSI target (Please refer to the section [ Storage ]
> [ iSCSI ] for details.) for the ‘
’ icon to appear again.
The provider which has been used by other AhsayUBS before will not be listed
as an empty block device. It should be zero out before putting into this
AhsayUBS.
WARNING:
Please note all data in the block device or the iSCSI initiator will be
DESTROYED and CANNOT BE RECOVERED again after the additional storage is
created.