| Models |
| Data Replication Manager |
| Data Replication Manager (DRM) is fibre
channel controller-based data replication software for disaster tolerance, recovery and
data movement solutions. DRM supports the HP StorageWorks Fibre Channel Modula
Array (ma) 8000 and Enterprise Modula Array (ema) 12000/16000 storage array solutions. In
addition, The RAID Array (ra) 8000 and Enterprise Storage Array (esa) 12000 are also
supported. This solution provides:
- On-line and real-time sequential data replication to a local or remote site
- Data replication over a Fibre Channel Storage Area Network (SAN) or
SAN<->MAN<-> WAN <->MAN<->SAN
- HP OpenVMS, HP Tru64 UNIXÒ , HP-UX, IBM AIX, Microsoft
WindowsÒ 2000/NTÒ , Novell
NetWare, and Sun Solaris support
- Heterogeneous support for multiple operating systems and host servers on the LAN-SAN
- Cloning at Initiator and Target sites
- Snapshot support at Target site
- FC Switch Zoning support
- Cascaded switches support
- Fibre Channel over Internet Protocol support
- Wave Division Multiplexing support
- Full FC-to-ATM connectivity with line speeds of T1/E1 through OC3
- Asynchronous and synchronous transfer modes
- Write History Logging and ² MiniMerge²
reconstruction
- Cluster and Stretched Clusters high availability solutions
- Replicate up to 100 km (~62 miles) with Very Long Distance GBIC
- Non-RCS LUN support at initiator and target sites
- Active/Active Bi-directional Solutions
- Up to twelve remote copy sets per array
- Up to twelve non-remote copy set per array
- Up to twelve remote or non-remote copy sets per association set
- Assisted failover and failback scripts SANworks Command Scripter
- HP StorageWorks Secure Path (various versions by O/S)
- SANworks Enterprise Volume Manager
- HP OpenView Storage virtual replicator
- Qualified in Oracle Storage Compatibility Program in Synchronous and Asynchronous
transfer modes
- Support for SAP R/3, stretch cluster with Management Appliance and EBS
|
| |
| Overview |
| Remote Replication |
| Data Replication Manager (DRM) provides
remote disk mirroring by connecting your primary RAID systems to remote storage RAID
systems. Data is replicated either synchronously or asynchronously each time a transaction
occurs. In the event of a disaster at your primary site, your data is safe on the remote
storage system and available for immediate connection to an alternate host. Simply
reconnect your remote storage system, and your business is back in operation. |
| Disaster Tolerance |
| The disaster tolerance is built
into the redundancy of the hardware. Each Modula Array has dual RAID controllers, mirrored
cache, cache batteries, dual power supplies, etc. HP StorageWorks Secure Path delivers a
multi-path driver that automatically fails over to an alternate data path when utilizing
dual inner site links and controllers. Thus, delivering a No Single Point of Failure
storage array. |
| |
| Disaster Recovery |
| In the event of a disaster, Data Replication
Manager assures an on-line copy of data is available at the alternate site to support
rapid resumption of critical processing at the alternate site. Resumption can usually
occur within minutes, instead of hours or days, as with other disaster recovery plans. |
| |
| Data Movement |
| Data Replication Manager can also be used for
the movement of large quantities of data for the purposes of data warehousing and data
mining applications. DRM is also ideal for moving important data off of storage subsystems
temporarily for the purposes of system maintenance. |
| |
| Storage Based |
| Data replication is performed at the storage
subsystem controller level and is totally transparent to the host, alleviating unnecessary
host cycles to perform the data mirroring function. |
| |
| High-Performance |
| Replication of data functionality is
performed at full fibre channel speeds (100 MB/second) across the Storage Area Network.
Dual controller design provides extra processing power to service host I/O requests. A
unique read-ahead cache mechanism can increase performance 30 to 40 percent for
applications that sequentially read data. |
| |
| Synchronous and Asynchronous Copy
Operations |
| Data Replication Manager offers either
synchronous or asynchronous data transfer modes. Distance between local and remote sites
can impact bandwidth and throughput performance when performing remote replication over
wide area networks. Synchronous data transfers offer the highest levels of data
protection. With synchronous operations, both the local and remote copies are identical
and concurrent at all times. Synchronous mirroring ensures that data copies are identical,
to prevent critical data loss in the event of a failure or disaster. In this mode, data is
written simultaneously to the cache of the local storage system and the remote storage
system, in real time, before the application I/O is completed, thus ensuring the highest
possible data consistency. Synchronous replication is appropriate when exact consistency
is critical to the business application.
Asynchronous mode can improve the latency associated with these long distances,
while maintaining very high levels of disaster tolerance protection. Asynchronous data
transfers writes data to the source storage system, acknowledges and completes the I/O
prior to synchronizing data with the target storage system. |
| |
| Storage Array Support |
| DRM supports StorageWorks
ma8000/ema12000/ema16000 RAID arrays, a family of fully integrated Fibre Channel storage
solutions. It is the outgrowth of years of StorageWorks experience, successfully
delivering quality solutions into applications with mission-critical requirements. The
ma8000/ema12000/ema16000 is designed for the data center where there is a need to
configure high-capacity systems having application-specific demands for high performance.
ma8000/ema12000 components provide the flexibility to configure solutions to provide
unlimited capacity and scalable performance in a small footprint. The solutions include
built-in and optional features for multi-vendor operating environments, and stringent data
center availability requirements. |
| |
| Operating System Support |
| Array Controller Software – ACS V8.7P in
multi-bus mode is supported with Data Replication in the following environments: HP
OpenVMS v7.2-2, v7.3
HP Tru64 UNIX v5.1, v5.1a
HP-UX v11.0, v11i
IBM AIX v4.3.3, v5.1 (32bit)
Novell NetWare v5.1, v6.0
Sun Solaris v2.6, v 7.0, v8.0 (32/64 bit)
Windows 2000 (SP2)
Windows NT 4.0 (SP6a)
NOTE: Sun Solaris v2.5.1,
Tru64 Unix 4.0 f/g and Netware Stretched Clusters are developed and supported by Custom
Systems, a Compaq division.
SAP r/3 4.6, Tru64 version 5.1, 5.1a or newer. |
| |
| Write History Logging ²
MiniMerge² Reconstruction |
| With Write History Logging, if the
local and remote copy sets become out of sync due to link failures, etc., then the target
member does not need to incur a full copy synchronization when the a link is restored.
Rather, only those incoming host writes while the links are down are re-issued (referred
to as ² mini-merged² ) to the
target to resynchronize the data in the same order in which they were received. The writes
that would have gone to the target are logged (referred to as ²
write history logging² ) to the assigned log unit. Write
History Logging has the benefit of substantially reduced resynchronization times. Also,
you can have multiple logs for each association set or LUN. For an added level of data
integrity the log maintains ² write order operation² through out the process. |
| |
| High Availability with
No-Single-Point-of-Failure |
| DRM configurations assure high availability
to host applications by having no-single-point-of-failure in its hardware and software
components. Dual host bus adapters, fibre channel links, switches, and storage subsystems
provide redundancy in hardware components. HP StorageWorks Secure Path software
provides a unique host-bus-adapter failover support feature from server to storage, which
provides system redundancy from a software perspective. |
| |
| Active/Active Bi-directional |
| The Bi-Directional Data Replication Manager
Solution addresses the growing need among businesses to ensure continuous and availability
of applications that are critical to daily business operations. This is the first storage
solution to enable two sites connected by switched Fibre Channel to use each other to
maintain synchronized copies of online data, thus maximizing resource utilization while
enabling business continuance, even in the event of disaster. |
| |
| Departmental DataSafe Solution |
| Departmental DataSafe Solution allows
customers to implement a host-independent remote copy (RC) solution at the departmental
level within the enterprise. |
| |
| Extended SANs over direct Fibre Channel
– Up to 100 km |
| Data Replication Manager provides the
capability to replicate data over direct fibre channel, covering distances of up to 100 km
(~62 miles) via the Very Long Distance GBIC. Data replication can be performed at full
fibre channel speeds. Also available is the Long Wave GBIC for data transmission up to 40
km. The use of and extended fabric license is recommended for additional buffer-to-buffer
credits at these type of distances. See ordering information for part number. |
| |
| Extended SANs using Wave Division
Multiplexing Technologies |
| Data Replication Manager supports Wave
Division Multiplexing (WDM) optical networks. WDM provides high bandwidth connectivity of
enterprise level SANs over a metropolitan area network via private or public dark fibre
optic networks. Remote replication via WDM is ideal when customers already have existing
fibre optic cables between the two sites but are unable to install additional cables. WDM
maximize the existing fibre optic infrastructure. |
| |
| Extended SANs over Wide Area Network
Capability |
| With DRM remote sites can be located
hundreds, even thousands of miles from their corresponding production sites with the use
of FC-IP or FC-to-ATM gateways. New support for Fibre Channel over Internet Protocol
enables DRM to replicated data across an IP network. Several vendors have been qualified
for interoperability with StorageWorks and SANworks products to encapsulate FC data
packets into IP packets. IP data packets are transferred across an Ethernet 10/100 or GbE
network by tunneling. This enables the user take full advantage of their infrastructure
already in place and leverage the IP knowledge.
The ATM gateway is capable of providing FC-ATM connectivity into
telecommunication networks for HP SANworks extended SAN-WAN-SAN solutions. ATM
connectivity is ideal where contingency sites are required to be very long distances to
protect against wide area disasters, or where fibre channel connectivity is unavailable.
In such cases, long distance replication can be defined as just across the street!
The FC-ATM Gateways provide the widest range of wide area networking support and
flexibility to meet customer requirements in the most cost-effective manner. The FC-ATM
gateway offers an OC3 MMF physical interface and support access speeds ranging from 1.544
Mbps to 155 Mbps. Data rates less than OC3 (155 Mbps) require the ATM switch. |
| Multiple T1 Lines – With
the optional ATM switch the FC-ATM Open System Gateway can support one or more T1/E1
lines. Multiple T1/E1 lines provide increased bandwidth and are an ideal solution for
customers who do not have access or need for faster data rates. Fractional ATM
lines – The FC-ATM Open System Gateway can support ²
fractional² lines, such as fractional T3/E3 or fractional OC3
lines. By supporting fractional ATM lines, customers can lease the exact bandwidth or
access speeds needed to support their requirements.
Shared ATM lines – The FC-ATM Open System Gateway can also support ² shared² or multi-use ATM lines. A
shared ATM line allows only one telecommunication link between sites, but the line
bandwidth is divided between the two Fibre Channel fabrics. Another common application
could be DRM and non-DRM use of the same-shared ATM line. A shared ATM line is ideal when
the customer’s bandwidth requirements do not justify two separate dedicated ATM
lines.
Data Encryption – Data can be encrypted for transmission over public
ATM lines. This gives companies such as financial institutions the security that they
need. |
| |
| HA Clustering |
| Data Replication Manager supports high
availability cluster solutions by various operating systems. This includes, HP
MC/Serviceguard, HP TruClusters, HP OpenVMS cluster, Microsoft Cluster Server, VERITAS
Clusters, NetWare Cluster Services and IBM HACMP. |
| |
| Stretched Cluster Capability |
| Data Replication Manager supports the Compaq
ProLiant Cluster HA/F500. The HA/F500 is a cluster platform comprised of ProLiant servers,
HP SANworks compatible storage, and fibre channel interconnects, Compaq software, and
managed by Microsoft Cluster Server (MSCS). The inclusion of fibre channel switch fabric
(FC-Switch) and long wave GBICs, along with new controller and platform software will now
allow for Disaster Tolerant (DT) solutions to be configured at up to 100 km distances
between systems. See the HA/F500 quick spec for more details. HP TruClusters Server
software delivers high value to those customers who require virtually no downtime, demand
unlimited scalability, and are looking for dramatic reductions in the system management
costs of their infrastructure. For campus-wide disaster tolerant and In addition, HP Tru64
UNIX TruClusters is also supported up to 6 km between hosts. |
| |
| Configuration |
| Fibre Channel configurations Minimum
Configuration
- Two esa12000, ra8000, ma8000, ema12000 or ema16000 subsystems – one at the target
site and one at the initiator site
- Two Fibre Channel switches at each target and initiator site
- Two Fibre Channel or ATM links between sites using Single Mode Fibre Optic cables
- Two Host Bus Adapters per host with multiple-bus failover capability
|
| |
| Switch Zoning |
| Zoning provides the ability to partition the
switched fabric into multiple zones and limits visibility of a controller to a particular
zone. You can increase the number of servers per SAN and dedicate a zone for a specific
purpose, for example, a dedicated backup zone, thus allowing re-utilization of hardware in
the SAN. |
| |
| Clone and Snapshot |
| Data Replication Manager supports clone
capability at both the initiator and target sites, and snapshot capability at the target
site. Clone and Snapshot are point-in-time copy functions that can be used to minimize
downtime required for system backups and data migration activities. Enterprise Volume
Manager v1.1B software product enables automated snaps & clones from a GUI console
that interfaces to StorageWorks Enterprise Backup Solutions. |
| |
| Non-Remote Copy Sets |
| Remote copy sets and non-remote copy sets can
now exist on the same subsystem at both the initiator and target sites. This provides
added LUN support and configuration flexibility, i.e., since the remote copy sets and
non-remote copy sets may be different at the initiator and target sites, not all data has
to be disaster tolerant. |
| |
| Association Sets |
| An association set is a group of remote copy
sets that share common attributes. Members of an association set can be configured to
transition to the same state at the same time. For example, if one association set member
assumes the failsafe locked condition, all other members of the same association set
assume the failsafe locked condition. An association set may also be used to simply share
a log unit between a group of remote copy set members that require efficient use of the
log space. The Association sets feature ensures transactional integrity in write
history-logging operations for those applications that require it. |
| |
| Service and Support, HP Care Pack and Warranty
Information |
| Product Support gives the customer access to
HP's experienced technical support resources as well as access to HP's Information
Services database for support on a variety of multi-vendor/multi-platform software
products. Product support includes escalations and problem coordination with the
appropriate engineering group. Compaq Services offer a variety of options to allow you to
tailor your product service to meet the needs of your organization. Basic warranty on
products can be uplifted from day one to ensure you receive the service you need when you
need it. Standard software product warranty is 90-day conformance to Software Product
Description or equivalent documentation.
Software product services
- Basic Per Product Telephone Support (annual support contract which includes standard
business hours access (5 days x 9 hours), next business day response time and access to
software patches)
- Per Product Installation Service (installation, configuration and startup testing)
- Subscription services to provide automatic distribution of new releases on a renewable
annual contract basis
- Telephone Service upgrades to basic per product support
- 7 x 24 access
- Faster response time (4 hour response)
- Service duration (1, 3 or 5 years)
- Tailored support contracts based on personalized statement of work: contact your local
support center via
http://www.hp.com/support/
HP Care Pack Services
- Upgrade of standard product warranty for hardware or software: 1 or 3 years duration; 5
x 9 access or 7 x 24 access; next business day or 4 hour response
- Available during warranty period only
- Prepaid rather than annual contract
DRM Solution Kits (User Guides, Release Notes, Application Notes and White Papers)
- Available on the DRM web page for downloading:
http://www.hp.com/storage/san-mgmt
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