Fujitsu Siemens Computers pmn User Manual page 613

VLP
VTC
Figure 39: CentricStor configuration with 5 ISPs (2 ICPs, 2 IDPs and one VLP
IUP ➟
ICP_IDP
LD
A logical drive is a virtual, non-physical drive. In CentricStor up to 64 logical drives can
be operated per ICP.
Logical Drive ➟
Logical Volume ➟
Logical Volume Group ➟
LV
A logical volume (LV) is a file which is stored temporarily in a Tape File System of the
Tape Volume Cache (TVC) and stored permanently in a physical volume (PV). The
standard size in an
20, 50, 100 oder 200 GB.
No more than 500,000 LVs can be defined in a CentricStor system, the name of each
(VSN) being unique in the system.
LVG
Group of logical volumes for which the same rules apply.
U41117-J-Z125-7-76
ISP which has neither a host nor a device port. Some central management
processes, in particular
system can contain two VLP-ISPs. The central management processes
then only run on one of these, the
(SVLP), is inactive except for monitoring the VLP Master.
In the small CentricStor models VTC and SBU this is the only ISP and
combines the attributes of the ICP,
disks are configured to form a RAID10 instead of an external RAID system.
CentricStor
VLP
ICP
FC switch
ICP
TVC
LD
LV
LVG
LVG is 900 MB, but this can be selected in discrete steps: 2, 5, 10,
VLM und PLM, run on this ISP. A CentricStor
VLP Master. The other, the Standby VLP
IDP and VLP. For the
IDP
IDP
Glossary
TVC the local
Console port
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