Hitachi Command Suite 8 User Guide

							Linking with Compute Systems ManagerThis module describes how to link to Compute Systems Manager.
About linking with Compute Systems Manager If the host management product Hitachi Compute Systems Manager (HCSM)is installed on the Device Manager server and linked, information about hosts
being managed by both products will be synchronized automatically when using Host Data Collector.
When Device Manager and Compute Systems Manager are linked, hosts areregistered or updated simultaneously between the two products. For this reason, Compute Systems Manager hosts can automatically be registered or updated as hosts of Device Manager. Similarly, hosts that have been
registered or updated in Device Manager can automatically be registered or updated in Compute Systems Manager. Therefore, it is no longer necessaryfor both the storage and server administrators to separately register or
update the same hosts.
To synchronize host information, the requirements are: • Hosts must have either a WWN or an iSCSI name. Among the Compute Systems Manager hosts, information about those that
have a WWN or an iSCSI name is sent to Device Manager. Compute
Systems Manager does not obtain iSCSI names when hosts are registered,
but Device Manager hosts that have iSCSI names are also registered in
Compute Systems Manager.
• Hosts must be normal hosts or virtual machines whose information was obtained by using Host Data Collector.
Among Device Manager hosts, information about those that were registered using Host Data Collector is sent to Compute Systems Manager.
Information about Compute Systems Manager hosts is also sent to Device Manager through Host Data Collector. Hosts that were registered by using
a method other than Host Data Collector (such as a Device Manager agent
or a host scan) and virtualization servers are not synchronized. For details
about setting up Host Data Collector, see the  Hitachi Command Suite
Administrator Guide .
Note that even when Device Manager and Compute Systems Manager are
linked, host deletions are not synchronized. Therefore, deleting a host from
Device Manager does not affect Compute Systems Manager. Compute
Systems Manager hosts that have been deleted from Device Manager can be manually re-synchronized, if necessary.
You can also start and perform operations in Compute Systems Manager from Device Manager by using the single sign-on functionality.
Linking related products451Hitachi Command Suite User Guide 
						

							Related concepts
•
Methods for registering hosts  on page 61
Related tasks
•
Resynchronizing hosts of Compute Systems Manager  on page 452
Resynchronizing hosts of Compute Systems Manager Users can re-synchronize Compute Systems Manager hosts that have been
deleted from Device Manager.
Procedure 1. In the  Administration  tab, select the Hosts tab, and click  Add Hosts.
2. Select  Re-sync Hosts with CSM , and then submit the task.
The task is registered in the  Data Collection Tasks tab.
3. Check the task status in the  Data Collection Tasks tab.
Result
If the task completed, a host is added to the Hosts tab.
Related concepts
•
About linking with Compute Systems Manager  on page 451
452Linking related productsHitachi Command Suite User Guide 
						

							Glossary
A allocated volume A logical device (LDEV) for which one or more host LUN paths are defined.
C
C/T See consistency time.
C/T delta The consistency time difference, or write-delay time, of data transferbetween the primary and secondary storage systems.
cache A set of RAM (Random Access Memory) modules used to store data
temporarily.
cache logical partition Virtual cache memory that is set up to be allocated to hosts that are in
contention for cache memory. CLPRs can be used to segment storage system cache that is assigned to parity groups.
capacity The amount of data storage space available on a physical storage device,
generally measured in bytes (MB, GB, TB, and so on).
CLI command line interface
Glossary453Hitachi Command Suite User Guide 
						

							CLPRSee cache logical partition.
Command Control Interface (CCI) Software used to control volume replication functionality (such asTrueCopy or ShadowImage) by means of commands issued from a host to
a storage system. A command device must be set up in the storage
system to enable the storage system to receive commands from CCI.
In an open system, Replication Manager uses the CCI configuration definition files to modify copy pair configurations and to acquireconfiguration information. Copy pair modification processing, such assplitting and resynchronizing copy pairs, is executed on the storage system via CCI.
concatenated parity group The concatenation of two or more parity groups into one group. Using aconcatenated parity group reduces the time that is required to access
data (especially sequential data).
consistency time A replication policy or threshold that indicates the amount of time that a
replication target (volume, journal group, or extended consistency group,
for example) is allowed to lag behind replication of the master, or source,
volume.
control unit (CU) Created in an enterprise-class storage system. Also called a CU image.
The LDEVs created in a storage system are connected to a single CU, and a number is assigned to each CU for identifying its LDEVs. Therefore,
volumes (LDEVs) in a storage system are specified by the CU number (CU#) and LDEV number.
copy pair A primary and secondary volume pair linked by the volume replication
functionality of a storage system. The primary volume contains original data, and the secondary volume contains the copy of the original.
Copy operations can be synchronous or asynchronous, and the volumes of
the copy pair can be located in the same storage system (local copy) or in
different storage systems (remote copy).
CSV comma-separated values454GlossaryHitachi Command Suite User Guide 
						

							Ddata drive A physical data storage device that can be either a hard disk drive (HDD)
or a flash (solid-state) drive.
data pool One or more logical volumes designated to temporarily store original
data. When a snapshot is taken of a primary volume, the data pool is
used if a data block in the primary volume is to be updated. The original
snapshot of the volume is maintained by storing the changeable data
blocks in the data pool.
DB database
device (dev or DEV) A physical or logical unit with a specific function.
DEVN Device number that is assigned to each logical address when using anLDEV on a mainframe host.
DHCP Dynamic Host Configuration Protocol
discovery A process that finds and identifies network objects. For example,
discovery may find and identify all hosts within a specified IP address range.
DKP Disk processor
DP pool The area where DP pool volumes (actual volumes) are registered. When a
DP volume (virtual volume) receives a write operation from a host, that
data is stored in a DP pool volume.
When Dynamic Provisioning and Dynamic Tiering must be differentiated,
this document uses the terms HDP pool and HDT pool.Glossary455Hitachi Command Suite User Guide 
						

							DP pool volumeAn actual volume that is one of the volumes making up a DP pool.
When Dynamic Provisioning and Dynamic Tiering need to be distinguished, this manual uses the terms HDP pool volume or HDT pool
volume.
DP volume A virtual volume that is created from a Dynamic Provisioning (DP) pool
(that is, it is associated with a DP pool).
When Dynamic Provisioning and Dynamic Tiering must be differentiated, this document uses the terms HDP volume and HDT volume.
E
EVS Enterprise Virtual Server
external path A path from a storage port of a storage system to a volume on a
connected external storage system.
external volume A logical volume whose data resides on drives that are physically located
in an externally connected storage system.
F
FC Fibre Channel
FCoE Fibre Channel over Ethernet. An encapsulation of Fibre Channel frames
over Ethernet networks. This allows Fibre Channel to use 10-gigabit
Ethernet networks (or higher speeds) while preserving the Fibre Channel protocol.
flash module drive A storage device, which is developed by Hitachi, that uses flash memory.
FMD See flash module drive.456GlossaryHitachi Command Suite User Guide 
						

							G
global-active device A storage system feature that provides high-availability copy pairs to
support simultaneous, uninterrupted host and cluster active-active I/O
within and across geographically disparate data centers. This feature protects against storage system and site failures by providing continuousaccess to data.
GUI graphical user interface
H
HBA See host bus adapter.
HCP (Hitachi Content Platform) A distributed storage system for fixed content data. Provides severalprotocols to present the data in standard directory structure.
HDP See Hitachi Dynamic Provisioning.
HDT See Hitachi Dynamic Tiering.
Hitachi Dynamic Provisioning (HDP) Functionality that allocates virtual volumes to a host and uses the physical
capacity that is necessary according to the data write request.
Hitachi Dynamic Tiering (HDT) Functionality that is used with Hitachi Dynamic Provisioning that placesdata in a hardware tier according to the I/O load. For example, a data
area that has a high I/O load is placed in a high-speed hardware tier, and
a data area that has a low I/O load is placed in a low-speed hardware tier.
host bus adapter One or more dedicated adapter cards that are installed in a host, haveunique WWN addresses, and provide Fibre Channel I/O connectivity to
storage systems, typically through Fibre Channel switches. UnlikeGlossary457Hitachi Command Suite User Guide 
						

							general-purpose Ethernet adapters, which handle a multitude of networkprotocols, host bus adapters are dedicated to high-speed block transfersfor optimized I/O performance.
host group Custom grouping of hosts that segregates hosts in a meaningful way, for
example, a group of hosts that is segregated by operating system. A host group can be shared with another virtual port or another physical port for
alternate path support.
HSD Host storage domain. A group used to strengthen the security of volumes
in storage systems. By associating and grouping hosts and volumes by
storage system port, host storage domains can be used to restrict access
from hosts to volumes.
Device Manager defines the host groups set up with the storage system
LUN security function as host storage domains. Host storage domains for
storage systems that do not have host groups are defined in the same
manner as if they had been set with the LUN security function.
HTML Hypertext Markup Language
HTTP Hypertext Transfer Protocol
HTTPS Hypertext Transfer Protocol Secure
I
I/O input/output
internal volume A logical volume whose data resides on drives that are physically located
within the storage system.
Internet protocol (IP) The protocol that governs the breakup of data messages into packets
(units of data), the routing scheme for transmitting them, and the
reassembly of the packets into the original data messages at the458GlossaryHitachi Command Suite User Guide 
						

							destination. Most networks combine IP with a higher-level protocol called
Transmission Control Protocol (TCP), which establishes a virtual connection between a source and a destination.
IOPS I/Os per second
IP See Internet protocol.
iSCSI Internet Small Computer Systems Interface
J
JRE Java Runtime Environment
JVM Java Virtual Machine
JWS Java Web Start
L
LAN local area network. A computer network that spans a relatively small
geographic area, such as a single building or group of buildings.
LDAP Lightweight Directory Access Protocol
LDEV (logical device) A volume created in a storage system. See also LU.
LDKC Logical disk controllerGlossary459Hitachi Command Suite User Guide 
						

							logical groupA user-defined collection of managed resources (hosts and volumes) that
are grouped according to business operations, geographic locations, or other organizational divisions. Logical groups can be  public or private :
• Public logical groups are accessible by any HCS user. • Private logical groups are accessible only by HCS users who belong to user groups that are associated with the logical group.
logical unit A volume, or LDEV, created in an open storage system, or configured foruse by an open-systems host, for example, OPEN-V. See also  LDEV.
logical unit number A unique management number that identifies a logical unit (LU) in a
storage system. A logical unit can be an end user, a file, a disk drive, a
port, a host group that is assigned to a port, an application, or virtual partitions (or volumes) of a RAID set.
Logical unit numbers (LUNs) are used in SCSI protocols to differentiate
disk drives in a common SCSI target device, such as a storage system. An
open-systems host uses a LUN to access a particular LU.
LU See logical unit.
LUN See logical unit number.
LUSE LUN expansion; LU size expansion
M
main control unit A storage system at a primary, or main, site that contains primaryvolumes of remote replication pairs. The main control unit (MCU) is
configured to send remote I/O instructions to one or more storage
systems at the secondary, or remote, site, called remote control units
(RCUs). RCUs contain the secondary volumes of the remote replication
pairs. See also remote control unit (RCU).460GlossaryHitachi Command Suite User Guide