User`s manual

Sans Digital – EN104L+(B) Admin Guide
29
Storage Management – Volume Group Manager
Volume Group Manager is to write the NAS signature to the RAID volume (RV – raw volume) which turns a RV into PV. When Physical
Volume (PV) is created, it is ready to be converted into Logical Volume (LV) for file serving.
Volume Group Types/Definitions
• Raw Volume (RV) is the RAID volume(s), or external iSCSI target(s) that are unformatted. The next step is to convert RV into
PV.
• Physical Volume (PV) is a volume that is ready to be partitioned and formatted with a file system, and converted into Logical
Volume (LV).
Note: PV is automatically formatted and converted to LV having the equal capacity as the PV. In the case of converting iSCSI target
device or SCSI device to PV, manual creation of LV is required.
• Logical Volume (LV) is a volume/share/folder that has been partitioned and formatted and ready to be used by attached clients.
Volume Group Manager features
• Converts RV to PV
• Add RV to PV, thus, creating Expanded PV
• Remove PV to RV Pool
• Remove or Replace RV that’s been added to PV
Creating PV
Creating PV is to convert the RV from the RV Pool to PV. Once RV is converted to PV, it is ready to be converted to Logical Volume (LV).
Conversion from PV to LV means PV is formatted and ready to be used by network clients attached to EN104L+(B).
To create PV, select the desired RV and click on Create PV.
Removing PV
PV’s in the PV Pool or Expanded PV Pool can be removed and converted into RV.
To remove PV, select the desired PV from the PV Pool, or Expanded PV Pool, and click on Remove PV.
Adding RV to PV
RV’s in the RV Pool can be added to the PV in the PV Pool to expand the capacity of the original PV, or, insert more LV’s.
To add the RV to the PV, select the desired RV and the PV and click on Add RV to PV. This process adds RV to the existing PV, thus,
creating the Expanded PV. Now, the added RV is named as PV.
NOTE: RV’s that were iSCSI target device or SCSI device require manual conversion into LV to be usable by the attached clients.
To separate the PV from Expanded PV
To remove the PV that’s been added to the PV, click on the PV from the Expanded PV Pool and click on Remove PV from PV. This process
removes the PV from the Expanded PV, converts the PV to RV and places it in the RV Pool as an RV.
Physical Volume Expansion may be used to combine multiple PV’s to create a single, large PV. This process can be useful when combining
multiple PV’s belonging to different RAID controller cards.
To replace the PV in the Expanded PV with another RV
To replace a PV belonging to Expanded PV with another RV, all necessary volumes can be selected at once rather than removing first, then,
adding next.