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ultimately week's red Hat climax in Boston, Hewlett-Packard vice chairman for business-regular Servers and utility Scott Farrand become caught with out PR minders through ServerWatch's Sean Michael Kerner, and may abide slipped off message a little. In a video interview, Farrand stated that HP turned into transferring its manner for mission-important techniques faraway from the Itanium processor and the HP-UX working outfit and toward x86-primarily based servers and red Hat commercial enterprise Linux (RHEL), via a venture to deliver enterprise-critical performance to the Linux working outfit called mission Dragon Hawk, itself a subset of HP's challenge Odyssey.
undertaking Dragon Hawk is an endeavor to carry the high-availability features of HP-UX, reminiscent of ServiceGuard (which has already been ported to Linux) to RHEL and the Intel x86 platform with a combination of server firmware and utility. Dragon Hawk servers will quicken RHEL 6 and supply the skill to partition processors into up to 32 remoted virtual machines—a technology pulled from HP-UX's technique aid supervisor. Farrand pointed out that HP changed into positioning Dragon Hawk as its future mission-vital platform. "We certainly mitigate (Itanium and HP-UX) and fancy complete that, however going forward their strategy for mission-essential computing is transferring to an x86 world," Farrand told Kernel. "it's now not by route of accident that individuals abide de-committed to Itanium, specially Oracle."HP vice president Scott Farrand, interviewed at red Hat climax through Sean Michael Kerner of ServerWatch
on the grounds that HP continues to live awaiting judgement in its case against Oracle, that commentary can moreover abide made a few americans in HP's company crucial programs unit choke on their morning espresso. And sources at HP convey that Farrand drifted a Little bit off-route in his comments. The enterprise's respectable line on project Odyssey is that it's in parallel to and complementary to the business's investments in Itanium and HP-UX. A supply at HP talked about Farrand unnoticed a portion of HP's undertaking Odyssey briefing notes to that impact: "undertaking Odyssey includes persisted investment in their based mission-critical portfolio of Integrity, NonStop, HP-UX, OpenVMS as well as their investments in structure future mission-essential x86 structures. delivering Serviceguard for Linux/x86 is a step towards achieving that mission-critical x86 portfolio."
project Odyssey, youngsters, is HP's transparent highway ahead with valued clientele that haven't bought into HP-UX in the past. with no lead for Itanium previous crimson Hat Enterprse Linux version 5, and with RHEL being more and more principal to HP's approach for cloud computing (and, pending litigation, mitigate for Oracle on HP servers), most likely Farrand became simply a bit bit forward of the company in his pronouncement.
Tip of the hat to Ars reader Caveira for his tip on the ServerWatch story.
In a movement designed to give carrier suppliers more flexibility in deploying and managing net-primarily based purposes, Hewlett-Packard traffic has introduced multi-OS advocate to a number of of its management tools.
The adjustments, which move HP’s Toptools, Servicecontrol manager, system useful resource manager, and the HP-UX Workload supervisor, are intended to lop back the workload of particular person gadget administrators by means of permitting resources to live provisioned instantly throughout sever structures.
based on HP, the alterations symbolize its ongoing endeavor to build a platform independent administration providing and fabricate it the most effectual vendor with a tightly integrated multi-OS administration manner for home windows, HP-UX, and Linux.
“these days what they wish to accomplish is offer one framework for the route you accomplish multi-device management,” says an HP spokesperson near to the challenge.
The tools that these adjustments abide an repercussion on reside a layer under HP’s OpenView programs management offering. And whereas they're meant to live used as standalone products, they are entirely integratable with the OpenView providing.
Toptools, HP’s internet-based mostly management product, now features revision administration with automated updates, improved discovery and inventory administration. It additionally has a brand current database export implement and SQL import device permitting advanced statistics manipulation, and improved multi-OS guide, including HP-UX, home windows XP and Linux.
HP Servicecontrol manager, a systems administration device with internet-enabled and command line interfaces, presents current multi-OS manageability, increased scalability as much as 1,024 nodes, and accelerated security via authentication and encryption.
HP procedure resource manager for allocating CPU, reminiscence and disk I/O on HP-UX systems now offers better system utilization and dynamic reallocations for Oracle environments via co-functioning with Oracle Database resource supervisor.
And HP-UX Workload manager is now increasing its capabilities to role in a excessive-availability, clustered ambiance by means of integrating with HP MC/Serviceguard, HP's excessive-availability clustering solution for HP-UX-based servers. also, it permits utility integration to fabricate the most of speedy capacity on demand components. ICOD allows the activation of extra processor means addressing quick IT fluctuation needs customarily present in an internet environment.
Toptools is bundled with each HP Intel IA-32-primarily based server and is attainable immediately. each Servicecontrol supervisor and the system useful resource manager, which can live bundled with every HP-UX-primarily based server, can live purchasable in September of 2001.
HP-UX Workload supervisor is accessible instantly and starts at an estimated U.S. checklist fee of $5,000.
With the enhancement’s HP has made to Toptools, Servicecontrol manager, technique useful resource supervisor, HP-UX Workload supervisor, an HP spokesperson says, “we now abide do a framework in vicinity that means that you can launch purposes simultaneously on big server environments.”
For extra assistance, visit www.hp.com (new window>
I won't journey through each permutation of supported disk and LAN applied sciences. however I accomplish exigency to jog your reminiscence about sole facets Of Failure in relation to hardware add-ons. i'll depart it up to you to role a hardware inventory to fabricate confident that you shouldn't abide an SPOF to your design.
SPU: It is not a requirement for each and every node in a cluster to live configured the exact identical approach, from a hardware perspective. It isn't unimaginable to fabricate exhaust of a reduce-powered construction server as a Standby node in the event that your leading application server fails. live confident to fabricate an endeavor to remember the efficiency and immoderate availability implications of operating consumer functions on a server with a multiple configuration.
These are the contraptions that are certainly to fail. fabricate confident that you offer adequate insurance policy for your operating device disks in addition to your information disks.
employing extremely attainable RAID disk arrays improves your chances of now not sustaining an outage as a result of a sole disk failure.
if you are applying Fibre Channel, ensure that every node has two sever connections to your storage contraptions by means of two sever Fibre Channel switches.
make confident that hardware options abide distinctive vitality substances from sever sources.
application components can offer RAID capabilities as well; LVM can present RAID 0, 1, 0/1. VxVM can offer RAID 0, 1, 0/1, 1/0, and 5. When making exhaust of utility RAID, ensure that mirrored disks are on sever controllers and powered from a sever vigour give.
Ideally, abide as a minimum one sever heartbeat LAN.
Ideally, abide a standby LAN for complete LAN interfaces, together with heartbeat LANs.
utilize assorted bridges/switches between lively and standby LANs.
If making exhaust of distinctive routed IP networks between servers and customers, fabricate confident that numerous routers are used.
be confident that complete contributors of a network can mitigate dynamic routing.
exercise to utilize probably the most strong routing protocols, e.g., RIP2 or even stronger OSPF.
If applying FDDI, fabricate confident that dual connected stations are connected to sever concentrators.
make confident that you've got as a minimum two unbiased energy components.
independent vigour materials may silent live fed from two external vitality turbines; that includes energy give businesses. engage the condition the set you abide got two independent vitality feeds into your information middle each from XYZ generating enterprise. If XYZ producing enterprise goes "bust" or loses the skill to give you with electricity, you're just a Little in a pickle. If complete else fails, your second vitality provide may silent approach from an onsite generator.
consistently glance at various the talent of your 2d vitality give to "kick in" seamlessly when your basic give fails.
You exigency to accept as sound with your statistics hub as an SPOF. how are you going to cope with this? this may accommodate a disaster healing device together with offsite tape information storage or may live as subtle as an advanced cluster solution reminiscent of Metrocluster or Continentalclusters incorporating asynchronous data replication over a DWDM or WAN link.
ensure that management is familiar with the implications of not including your records hub in the ordinary elevated Availability Plan.
should silent an application fail over to an lively adoptive node, you can abide two functions working on one node. accomplish the consumers of each functions engage into account and accept this?
have you install any provider stage Agreements along with your person communities concerning individual utility performance?
How will you control the efficiency of individual purposes in the event of a failover to an vigorous adoptive node?
Will you employ technologies akin to procedure useful resource supervisor (PRM) and work Load manager (WLM), or Go away efficiency administration to the simple UNIX scheduler?
Do users exigency to perform a UNIX login to the node this is operating their utility?
Does the person's application require a UNIX consumer id to operate its own level of customer authentication?
How will you manage providing constant UNIX user and community IDs across the complete cluster?
Do you utilize NIS, NIS+, or LDAP?
Do you utilize depended on programs?
Do you abide a protection coverage for individual nodes?
Do you abide got a protection coverage in your network(s)?
Do you abide got a safety coverage for the cluster?
Do you abide got a security policy on your records center?
Do you abide a security coverage for users?
Does each person concerned recognize and understand your safety policies?
Do you employ third-party security consultants to perform penetration assessments?
Does your company abide an IT safety department? if so, accomplish they role typical protection audits? accomplish they live sensible the security implications of an HP immoderate Availability Cluster?
That should jog your memory about the SPOF and concerns regarding the supply of your purposes. As which you could see, it live now not very nearly "throwing" hardware on the problem; there are loads of other technological and manner related challenges that you'll exigency to physiognomy when you are to present maximized uptime to your shoppers.
Let's stream on to glance on the mechanics of constructing a fundamental elevated Availability Cluster.
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McObject has announced the release of eXtremeDB 3.0, a major upgrade of its in-memory embedded database for brilliant devices. current features in eXtremeDB 3.0 comprise a developer's checklist of improvements, many of which build on the database's key strengths of real-time performance and ultra-small memory and CPU “footprint.”
Other additions—such as a remote access interface and advocate for non-volatile RAM (NVRAM, or battery-powered RAM)—contribute to developer efficiency, and bolster eXtremeDB's innovator status in providing durable and scalable data management for networked embedded systems.
One Important enhancement to eXtremeDB 3.0 is improved assignment scheduling, which employs a speedily current synchronization mechanism that minimizes expensive context switches, while using fewer CPU cycles to resolve resource contention. This results in improved performance and in greater scalability from low-end and even no-OS environments, to high-end Linux, Solaris, and HP-UX-based servers.
eXtremeDB 3.0's NVRAM advocate presents an attractive current recovery option for an in-memory database. NVRAM is memory that is backed up by a battery so even if a device is turned off or loses its power source, the content of the memory remains. eXtremeDB 3.0 enables a process to reconnect to the NVRAM-hosted database, initiate any needed cleanup, and then resume household operation after the system reboots.
For failsafe embedded data management, McObject offers the eXtremeDB elevated Availability (HA) edition. eXtremeDB HA version 3.0 adds advocate for “1-safe” or asynchronous replication. In 1-safe replication, a database transaction is committed on the primary node without waiting for updates to propagate to replica nodes, resulting in shorter resource holding time suitable for applications with less stringent reliability requirements (eXtremeDB already supported 2-safe or synchronous replication for systems with the strictest durability requirements). The addition of 1-safe replication provides a current HA option for developers to tune availability and performance to the system requirements.
“Fueled by the growth of the Internet and a convergence of functions, technologically advanced devices must increasingly manage tangled data with a proven, tightly integrated database engine,” said Stephen Balacco, embedded software analyst at Venture development Corporation (VDC). “McObject's eXtremeDB 3.0 recognizes the unique requirements for device data management in key areas such as performance, petite footprint, development ease and flexibility.”
As befits a database provided as a flexible programming library, many of eXtremeDB 3.0's current features consist of API additions and improvements. current functions that enhance performance and efficiency include:
Direct structures. In previous versions, each individual bailiwick of data classes and structures were read/written individually. In eXtremeDB 3.0, an embedded structure can live declared 'direct' and interfaces will live created to read/write the entire structure. The result is less coding and therefore a smaller code footprint, and better performance.
Classname_delete_all() allows complete objects of a class to live deleted in a sole role call (previously it was necessary to delete objects one at a time). The result, again, is to liquidate repetitive coding, reduce footprint, and enhance performance.
Classname_fieldname_pack() is a current role to release memory tied up in "gaps" resulting from deleted elements in vectors. memory is used more efficiently: more data can live stored in the identical amount of space.
eXtremeDB offers sophisticated developer tools, and version 3.0 extends this handicap with several current features:
The role classname_fieldname_pattern_search() offers pattern-matching, similar to the SQL wildcard capability, in eXtremeDB's aboriginal API. Pattern-matching expands eXtremeDB's partial-key search (e.g. complete names starting with “Jo”) to more tangled patterns that include wildcard characters, such as “Jo*n*, which would match “Jones,” “Johnston,” etc.
eXtremeDB 3.0's current Database browser utility enables a user to browse and edit a database's contents during development, for testing and verification.
Remote Access Interface. eXtremeDB 3.0 will generate an interface enabling programs to read from and write to eXtremeDB from different machines on a network. In earlier versions, programs interacting with the database had to reside on the identical target system, or developers implemented their own remote interface, for example with SOAP or CORBA.
Unicode. eXtremeDB 3.0's advocate for Unicode enables exhaust of a wider compass of character sets (such as many Asian alphabets), which simplifies the development process and adds to marketability of eXtremeDB-based products internationally.About eXtremeDB
With eXtremeDB, McObject offers a database management system that meets the performance requirements and resource constraints of intelligent, connected devices. eXtremeDB provides faultfinding data management features—including transactions, concurrent access, elevated Availability and a high-level data definition language—while maintaining a tiny code footprint (as Little as 50K). As an in-memory database system (IMDS), eXtremeDB delivers the real-time responsiveness demanded by consumer electronics, network infrastructure gear, industrial control applications and other embedded systems.
eXtremeDB moreover provides sophisticated development capabilities, such as advocate for varied data and query types, a high-level data definition language, and a powerful debugging environment including a self-diagnostic API that catches a wide compass of common programming errors before they slip into runtime code.About McObject
Founded by embedded database and real-time systems experts, McObject offers proven data management technology that makes brilliant devices smarter, more trustworthy and more cost-effective to develop and maintain. McObject counts among its customers industry leaders such as DaimlerChrysler, Peiker acustic, Tyco Thermal Controls, F5 Networks, JVC, Motorola and Boeing. McObject, based in Issaquah, WA, is committed to providing innovative technology and first rate services to customers and partners. The company can live reached at +1-425-831-5964, or visit www.mcobject.com.
The Server and StorageIO Group
How accomplish they configure a SAN as host storage of combined Win2000, NT, and Novell as a failover or clustered design?For elevated availability, SAN storage can live configured to live accessed by servers with cluster failover capabilities. For example using Microsoft-based operating systems, servers can live configured for failover and SAN storage access using clustering software from Microsoft or third-party independent software vendors (ISV). For Novell Netware environments, you could exhaust the Novell Clustering Services software to enable server failover. There are moreover clustering and failover solutions for other operating system environments, including Linux, HP HP-UX, IBM AIX, and Sun Solaris.
In addition to server failover, path failover and management of host adapters can live portion of a server cluster configurations as well as for yardstick servers to utilize redundant SAN access paths. Path management software is available from many different vendors for different platforms. While this is an oversimplified list of things to do, your SAN storage will exigency to live configured to live accessed by the different servers including making confident that any zones are setup properly, LUN masking and mapping is adequately configured, and that failover software recognizes which SAN LUNs and volumes to access along with confiscate restart and adapter path assignments.
I won't Go through every permutation of supported disk and LAN technologies. But I accomplish want to jog your memory about sole Points Of Failure in relation to hardware components. I will leave it up to you to perform a hardware inventory to ensure that you accomplish not abide an SPOF in your design.
SPU: It is not a requirement for each node in a cluster to live configured exactly the identical way, from a hardware perspective. It is not inconceivable to exhaust a lower-powered development server as a Standby node in case your main application server fails. You should engage some time to understand the performance and elevated availability implications of running user applications on a server with a dissimilar configuration.
These are the devices that are most likely to fail. Ensure that you offer adequate protection for your operating system disks as well as your data disks.
Utilizing highly available RAID disk arrays improves your chances of not sustaining an outage due to a sole disk failure.
If you are utilizing Fibre Channel, ensure that each node has two sever connections to your storage devices via two sever Fibre Channel switches.
Ensure that hardware solutions abide multiple power supplies from different sources.
Software components can offer RAID capabilities as well; LVM can offer RAID 0, 1, 0/1. VxVM can offer RAID 0, 1, 0/1, 1/0, and 5. When utilizing software RAID, ensure that mirrored disks are on sever controllers and powered from a sever power supply.
Ideally, abide at least one sever heartbeat LAN.
Ideally, abide a standby LAN for complete LAN interfaces, including heartbeat LANs.
Utilize multiple bridges/switches between vigorous and standby LANs.
If utilizing multiple routed IP networks between servers and clients, ensure that multiple routers are used.
Ensure that complete members of a network can advocate dynamic routing.
Endeavor to utilize the most robust routing protocols, e.g., RIP2 or even better OSPF.
If utilizing FDDI, ensure that dual attached stations are attached to sever concentrators.
Ensure that you abide at least two independent power supplies.
Independent power supplies should live fed from two external power generators; that includes power supply companies. engage the situation where you abide two independent power feeds into your data hub both from XYZ Generating Company. If XYZ Generating Company goes "bust" or loses the capability to supply you with electricity, you are moderately in a pickle. If complete else fails, your second power supply should approach from an onsite generator.
Regularly test the talent of your second power supply to "kick in" seamlessly when your primary supply fails.
You exigency to account your data hub as an SPOF. How are you going to deal with this? This can involve a disaster Recovery device including offsite tape data storage or could live as sophisticated as an advanced cluster solution such as Metrocluster or Continentalclusters incorporating asynchronous data replication over a DWDM or WAN link.
Ensure that management understands the implications of not including your data hub in the overall elevated Availability Plan.
Should an application fail over to an vigorous adoptive node, you will abide two applications running on one node. accomplish the consumers of both applications understand and accept this?
Have you set up any Service level Agreements with your user communities relating to individual application performance?
How will you manage the performance of individual applications in the event of a failover to an vigorous adoptive node?
Will you employ technologies such as Process Resource Manager (PRM) and work Load Manager (WLM), or leave performance management to the basic UNIX scheduler?
Do users exigency to perform a UNIX login to the node that is running their application?
Does the user's application require a UNIX user ID to perform its own level of client authentication?
How will you manage providing consistent UNIX user and group IDs across the entire cluster?
Do you exhaust NIS, NIS+, or LDAP?
Do you exhaust Trusted Systems?
Do you abide a security policy for individual nodes?
Do you abide a security policy for your network(s)?
Do you abide a security policy for the cluster?
Do you abide a security policy for your data center?
Do you abide a security policy for users?
Does everyone concerned know and understand your security policies?
Do you employ third-party security consultants to perform penetration tests?
Does your organization abide an IT Security Department? If so, accomplish they perform regular security audits? accomplish they understand the security implications of an HP elevated Availability Cluster?
That should jog your memory about the SPOF and matters relating to the availability of your applications. As you can see, it's not just about "throwing" hardware at the problem; there are lots of other technological and process related challenges that you will exigency to physiognomy if you are to offer maximized uptime to your customers.
Let's journey on to glance at the mechanics of setting up a basic elevated Availability Cluster.
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