archive-au.com » AU » T » TECHTARGET.COM.AU

Total: 919

Choose link from "Titles, links and description words view":

Or switch to "Titles and links view".
  • Storage Basics Part 2: What is iSCSI?
    difficult to integrate into a FC SAN Since Ethernet is also set up and used successfully in homes and small offices there is a substantially broader base of users that are knowledgeable in setup and configuration It s important to note that iSCSI offers excellent performance levels in all but the most demanding transactional applications Many network professionals may find that strange considering the congestion and latency inherent in Ethernet and the fact that 1 Gbps Ethernet has substantially less bandwidth than 2 4 or even 10 Gbps Fibre Channel SANs Still experts agree that the early reputation for poor or unreliable performance is largely undeserved today and iSCSI can potentially perform as well as Fibre Channel But iSCSI also has lingering issues that any adopter should consider First an iSCSI SAN should include measures to optimise performance and minimise latency This includes using high performance NICs with TCP IP Offload Engine TOE capability and switches that support low latency ports However these steps can raise the cost of iSCSI deployment and it is possible to spend more money on an iSCSI SAN than a FC SAN ISCSI target Initiator software can vary radically in effectiveness and stability so another popular tactic is to optimise the iSCSI initiator software on each host computer As iSCSI broadly moves to 10 Gbps iSCSI target initiation may depend more on the choice of hardware based NIC ISCSI optimisation should also avoid the oversubscription of Ethernet switch ports Since Ethernet traditionally doesn t fill the entire channel bandwidth it was common practice to allow port sharing between Ethernet devices at the risk of some congestion if multiple devices all vie for switch bandwidth simultaneously This kind of congestion can easily impair traffic and introduce unwanted latency Experts also recommend a careful evaluation of iSCSI behaviour and performance when deploying iSCSI in a virtual server environment The popular belief is that iSCSI is less secure than Fibre Channel but that is not the case in fact iSCSI employs advanced authentication methods to establish security such as CHAP Challenge Handshake Authentication Protocol which has been used in IP networks for years Fibre Channel users often rely on the fundamental differences in the FC architecture and complicated zoning masking rules to maintain security Another important part of iSCSI security is in isolating the iSCSI SAN data from the main user LAN This can be handled by creating and running a physically separate LAN but is more often accomplished by running the iSCSI SAN through a virtual LAN VLAN NEXT Getting the most out of iSCSI Dig Deeper on iSCSI SAN storage All News Problem Solve Using Nimble Storage construction firm reconstructs storage set up Nexsan launches unified storage architecture with flash cache ISCSI replacing Fibre Channel as dominant storage network technology ISCSI storage gets performance makeover Load More View All Using Nimble Storage construction firm reconstructs storage set up Nexsan launches unified storage architecture with flash cache ISCSI replacing Fibre Channel as dominant storage network technology ISCSI

    Original URL path: http://searchstorage.techtarget.com.au/news/2240021850/Storage-Basics-Part-2-What-is-iSCSI (2016-02-10)
    Open archived version from archive


  • Storage Basics Part 1: What is Fibre Channel?
    meet a variety of enterprise needs FC Class 1 involves a dedicated connection running at full bandwidth using delivery confirmations FC Class 2 still provides confirmed delivery but does not use a dedicated connection FC Class 3 does not confirm delivery though this reduction in overhead can improve apparent performance slightly FC Class 4 provides confirmed delivery along with advanced features such as virtual connections and fractional bandwidth Fibre Channel is regarded as a very reliable SAN technology The host bus adapters HBAs and switches are generally quite robust minimizing the rate of device failures The FC SAN fabric allows for multiple connection paths and redundant connections so if a hardware fault or cabling issue arises a new path can be found and communication can failover to an alternate connection keeping storage and applications connected even at reduced performance until corrective action can be taken Alternatively multiple connections can be aggregated or trunked for even better bandwidth For example two 2 Gbps connections can be aggregated so that they effectively behave as one 4 Gbps connection The availability of multiple or redundant connections enables load balancing where SAN traffic is analysed and can be dynamically rerouted from busy paths bottlenecks through less used paths Security is another important attribute of Fibre Channel technology A network lets multiple devices communicate together But for a SAN it s generally not desirable to allow every server to recognize or access every LUN on the SAN In actual practice LUNs must be configured so that they are visible to only certain applications configuring security is a core part of the storage provisioning process Zoning makes it possible for devices within a Fibre Channel network to see each other By limiting the visibility of end devices servers hosts can only see and access storage devices that are placed into the same zone Once the SAN is zoned LUNs are masked so that each host server can only see specific LUNs However there are some recognized disadvantages to FC Fibre Channel has been widely criticized for its expense and complexity A specialized HBA card is needed for each server Each HBA must then connect to corresponding port on a Fibre Channel switch creating the SAN fabric Every combination of HBA and switch port can cost thousands of dollars for the storage organization This is the primary reason why many organizations connect only large high end storage systems to their SAN Once LUNs are created in storage they must be zoned and masked to ensure that they are only accessible to the proper servers or applications often an onerous and error prone procedure These processes add complexity and costly management overhead to Fibre Channel SANs NEXT What is iSCSI Dig Deeper on Primary storage and storage hardware All News Problem Solve Advantages of using an object storage system Dell storage products roadmap includes server flash primary dedupe EMC sees bright future for hybrid SSD cloud models Hitachi Data Systems moves into unified storage architecture with HUS Load

    Original URL path: http://searchstorage.techtarget.com.au/news/2240022077/Storage-Basics-Part-1-What-is-Fibre-Channel (2016-02-10)
    Open archived version from archive

  • Review: Nano-NAS impresses, despite flaws
    its inability to establish a persistent connection to the device s drives This was peculiar because the DNS 323 Dynamic Host Configuration Protocol features worked as advertised instantly negotiated with our router for an IP address and made the web administration interface available without an user intervention being required We suspect this is because it instructions to Windows to mount its disks as shared drives are in some way flawed a situation we corrected by using the Map Network Drive command and entering the IP address and volume name of the drives a process that worked perfectly in both Windows XP and Vista Once installed the machine is entirely and happily uncontroversial The drives are simply ever present and available for whatever uses you put them to The web based administration tool is simple to use and easy to learn if occasionally unreliable We could not get the email alerts facility to work and the procedure to re allocate RAID levels and format drives crashed twice leaving us uncertain if the machine was ready for use Another concern is the ext2 file system the unit applies to its drives This filesystem is an old Linux favourite but is hardly mainstream It is thankfully accessible under Windows which in any case declares the unit contains NTFS drives For maximum portability we would have preferred the machine apply either NTFS or FAT32 to the drives The FTP server worked flawlessly although perhaps recklessly it was pre configured without a password for anonymous connections It s reliance on an older GUI could deter those used to FTP software but does not have a steep learning curve Power management is a welcome and effective inclusion with options to time the powering down of drives available in increments of five minutes to a maximum of half an hour Facilities for creating groups and granular access rights are a little crude but do the job Users will have to be assigned new user names and passwords to use this facility a chore but an understandable one given that Active Directory integration and single sign on seem unreasonable inclusions in a 399 device Notable omissions include NDMP support but we can imagine a backup regime could be created using FTP creatively Our test unit was also missing the defragmentation utility promised in the manual Hot swapping would also be nice but again could be too much to ask for at the price The setup routine could also be a little more expressive to help non technical users understand the level of protection available under various RAID levels Overall however this is an impressive machine that will suit networked home users to a tee and should comfortably serve a small office Disclosure D Link gifted the NAS to the author after this review was written but before it had appeared Dig Deeper on Buying data storage All News Problem Solve Data center upgrade saves ICF International millions Storage supplies constrained by Thai floods Seagate Samsung combine forces for

    Original URL path: http://searchstorage.techtarget.com.au/news/2240019078/Review-Nano-NAS-impresses-despite-flaws (2016-02-10)
    Open archived version from archive

  • Archive integration woes dog healthcare providers
    about 20 to 30 minute delays to access patient records on archival tapes The disk based backup system is only a temporary fix until Spectrum puts in IBM s Grid Medical Archive Solution GMAS but that will open another can of worms Spectrum uses McKesson Corp s PACS application which certifies storage systems in tiers it terms Cache 1 Cache 2 and archive systems Cache 1 is usually internal disk Cache 2 high performing external disk and archive is the lowest performing tier The McKesson system puts files into tar format a holdover from tape to send to archival storage Currently the GMAS system is only compatible with the McKesson application as an archive which LaBelle said could lead to further performance problems with radiological images IBM officials at the event said IBM is working to certify GMAS as a Cache 2 device with McKesson Vertical integration between applications and storage is only part of the problem with digital archiving for healthcare applications according to IBM speakers at the event Richard Bakalar chief medical officer for IBM s healthcare and life sciences division said that PACS systems currently rely on both unstructured image data and structured metadata typically using the Digital Imaging and Communications in Medicine DICOM standard to transmit metadata between imaging systems However although DICOM can be used to open a medical image in one system that has been made by another differences in how each application produces metadata mean that data from different imaging systems can t share the same archive and also can t yet share an archive with other types of data such as electronic medical records IBM and healthcare IT organizations like the Healthcare Information and Management Systems Society HIMSS are working to integrate the DICOM standard into archives that s the next wave of innovation for this space Bakalar said After that the next wave will be the ability to have a single archive for the entire environment According to a presentation by Joseph Jasinski IBM s program director for healthcare and life sciences research IBM also has products in the pipeline meant to combine medical archives that span regional distances and organizational boundaries as well as different applications and storage systems Prototypes already being demonstrated in the lab and in the field with alpha testers include compliance enforcement middleware based on DB2 version 9 and the beginning of what IBM terms the National Health Information Network NHIN essentially a version of GMAS on a national scale for correlating medical records and pandemic prevention Clod Barrerra IBM distinguished engineer and chief of technical strategy for system storage said that with the changes taking place in healthcare and other vertical markets such as Web 2 0 and video on demand storage vendors will start to realign products accordingly You re going to see more and more specialization from storage vendors on behalf of large verticals Dig Deeper on Data management software All News Problem Solve Storage infrastructure management doesn t have to be an

    Original URL path: http://searchstorage.techtarget.com.au/news/2240021734/Archive-integration-woes-dog-healthcare-providers (2016-02-10)
    Open archived version from archive

  • Surveillance drives are worth watching
    mean you miss a murder Surveillance drives are supposed to see everything making the pause to verify data a deleterious delay The machines compensate by using some of the less used bits of the ATA 7 instruction set to instruct the drive that it simply cannot pause for anything because video is being written to the device Various components of the drives have been hardened to deal with this workload to the extent that Lee says the mean time between failure for surveillance drives exceeds that of conventional units They also outperform everyday drives in terms of power consumption an important consideration given that surveillance drives are usually put to work in chassis alongside 4 8 16 or more drives All of those drives are expected to be active all of the time And when surveillance recorders are switched on all of the drives need to become active as soon as possible If the start up current requirement or ongoing power consumption is too high you can get intermittent results Lee says That s a no no so the drives use less juice when turned on and require less to keep running too The drives perform some other neat tricks too The performance of large arrays can be adversely impacted by vibration as the disks start to wobble each other about Surveillance drives are hardened against this and keep on recording video at the required rate and resolution no matter how shaky their neighbours become Lee says the market for these drives is growing fast thanks to the surveillance industry moving from analogue to digital recording He admits that volumes will never match the market for conventional hard drives but says the opportunity is significant enough for the drives released last week to represent Seagate s second generation product One thing the drives cannot do however is serve conventional storage needs however tempting it sounds to put a hardened low power disk to work for more prosaic tasks It s not recommended to put them in a conventional array Lee says Dig Deeper on Primary storage and storage hardware All News Problem Solve Advantages of using an object storage system Dell storage products roadmap includes server flash primary dedupe EMC sees bright future for hybrid SSD cloud models Hitachi Data Systems moves into unified storage architecture with HUS Load More View All Dell storage products roadmap includes server flash primary dedupe EMC sees bright future for hybrid SSD cloud models Hitachi Data Systems moves into unified storage architecture with HUS Week in review podcast EMC goes cloud building and more Load More View All News Advantages of using an object storage system FC SAN vs iSCSI SAN Part 1 Reliability and performance FC SAN vs iSCSI SAN Part 2 Cost and scalability considerations A beginners guide to iSCSI View All Problem solve ADS BY GOOGLE Latest TechTarget resources CIO AU Security AU Data Backup Disaster Recovery SMB Storage Storage Channel Search CIO com au Internet of Things Food safety apps

    Original URL path: http://searchstorage.techtarget.com.au/news/2240019268/Surveillance-drives-are-worth-watching (2016-02-10)
    Open archived version from archive

  • Adaptec moves into SANs
    You also agree that your personal information may be transferred and processed in the United States and that you have read and agree to the Terms of Use and the Privacy Policy Adaptec Australia manager Demetri Christodoulou said he expects the new machines will appeal mostly to existing Adaptec clients who he believes are seeking storage to work with applications like Exchange or SQL Server and wish to continue working with a single storage supplier The Snap Server 700i series offers three models all of which are 1U 19 rack mount units The Snap Server 720i provides 1TB or 2TBs using SATA drives The Snap Server 730i provides 3TBs using SATA drives The Snap Server 750i provides 1 2TB using 15K RPM SAS drives Christodoulou said he believes the devices mirroring features and ability to mix SAS and SATA drives within a single chassis are standout features unavailable from competitors at the price point of 13 179 the base price of the 720i Dig Deeper on Fibre Channel networking All News Problem Solve Intel introduces OpenFCoE offers cheap fibre channel over Ethernet on ramp Brocade gets into the HBA business Melbourne IT plans to deploy EMC s new VPLEX storage federation and virtualization array EXCLUSIVE NetApp document Tip EMC s Celerra Clariion to go EOL in 2010 successor to emerge in Q3 Load More View All Intel introduces OpenFCoE offers cheap fibre channel over Ethernet on ramp Brocade gets into the HBA business Melbourne IT plans to deploy EMC s new VPLEX storage federation and virtualization array EXCLUSIVE NetApp document Tip EMC s Celerra Clariion to go EOL in 2010 successor to emerge in Q3 Load More View All News Fibre Channel over Ethernet FCoE implementation guide File virtualisation limitations View All Problem solve ADS BY GOOGLE Latest TechTarget resources CIO AU Security AU Data Backup Disaster Recovery SMB Storage Storage Channel Search CIO com au Internet of Things Food safety apps set to emerge Food safety could emerge as a key application for the Internet of Things in the coming months providing real time visibility in Cloud security culture a building block for today s businesses As organizations today move more data to the cloud it s important to cultivate a cloud security culture and enlist a CISO a new How to do an advanced data analytics project on the cheap Delivering an advanced data analytics project to the business can cost a fortune But with some imagination CIOs can do it for Search Security com au Weigh the benefits risks of going mobile in the enterprise Smartphone and tablet use in the enterprise can help boost productivity improve employee satisfaction and lower costs However Conquer BYOD risks with mobile device management Bring your own device has a number of inherent security challenges Expert Lisa Phifer explains how a mobile device management The IT security gold rush is on Security budgets in Australia are soaring as hacking incidents reach new levels Search Data Backup Data protection technologies Experts offer

    Original URL path: http://searchstorage.techtarget.com.au/news/2240019044/Adaptec-moves-into-SANs (2016-02-10)
    Open archived version from archive

  • Dell, HDS and NetApp all upgrade midrange storage
    1TB drives HDS new machine is the USP VM and is positioned as a mini version of the USP V array announced in May The USP VM is based on rack mounted hardware and standard 220 volt power supplies while its big brother requires a raised data center floor and multiphase power USP VM supports up to 72 TB of capacity internally and HDS claims up to 96 petabytes PB of external virtualized storage compared to the USP V s capacity limits of 337 TB internal and 247 PB external Software options for snapshots replication tiered storage thin provisioning and storage virtualization are the same as on the high end model HDS is also claiming that the new box s performance 1 2 million IOPs is the same as the USP V HDS Australia s Simon Elisha said the new machine which will sell in Australia at a starting point of just under 100 000 will be well suited to the upper mid market a category he said includes small insurers health funds superannuation funds and higher education institutions like TAFEs and universities Organisations like these do not have a large number of employees but service a large customer base he said adding that he feels the new machine s inclusion of live upgrades thin provisioning virtualisation and other featrures represent a no compromise approach to storage NetApp s new product is the FAS2000 which comes in two models the 2020 and the 2050 The 2020 a 2U enclosure priced at around US12 000 with capacity up to 24 terabytes TB will only support SATA disks in its first release The 2050 a 4U enclosure starting at around 25 000 with a maximum capacity of 69 TB will support only SAS disks internally The 2050 will also support Fibre Channel and SATA expansion shelves The mid market will become even more crowded later in the week when Adaptec announce new products Dig Deeper on Fibre Channel networking All News Problem Solve Intel introduces OpenFCoE offers cheap fibre channel over Ethernet on ramp Brocade gets into the HBA business Melbourne IT plans to deploy EMC s new VPLEX storage federation and virtualization array EXCLUSIVE NetApp document Tip EMC s Celerra Clariion to go EOL in 2010 successor to emerge in Q3 Load More View All Intel introduces OpenFCoE offers cheap fibre channel over Ethernet on ramp Brocade gets into the HBA business Melbourne IT plans to deploy EMC s new VPLEX storage federation and virtualization array EXCLUSIVE NetApp document Tip EMC s Celerra Clariion to go EOL in 2010 successor to emerge in Q3 Load More View All News Fibre Channel over Ethernet FCoE implementation guide File virtualisation limitations View All Problem solve ADS BY GOOGLE Latest TechTarget resources CIO AU Security AU Data Backup Disaster Recovery SMB Storage Storage Channel Search CIO com au Internet of Things Food safety apps set to emerge Food safety could emerge as a key application for the Internet of Things in the coming months

    Original URL path: http://searchstorage.techtarget.com.au/news/2240019045/Dell-HDS-and-NetApp-all-upgrade-midrange-storage (2016-02-10)
    Open archived version from archive

  • HDS makes services a formality
    emails regarding relevant topic offers from TechTarget and its partners You can withdraw your consent at any time Contact TechTarget at 275 Grove Street Newton MA You also agree that your personal information may be transferred and processed in the United States and that you have read and agree to the Terms of Use and the Privacy Policy and New Zealand The new team offers strategic planning and operational best practices across five areas Data Lifecycle Management DLM Storage Economics Service Management Consolidation and Virtualisation and Business Continuity and Risk Michael Cunningham will lead the new Practice in a new role Director of Consulting and Solutions in Australia and New Zealand The Practice has also hired four new team members that the company says has a combined nine decades of relevant experience Our new consulting practice confirms our role as a strategic business partner to our customers and we will continue to work with organisations across ANZ to assist them in achieving the highest level of return on their storage investment Cunningham said Dig Deeper on Data storage vendors All News Problem Solve SGI adopts hybrid storage for clustered NAS Symantec aims Data Insight 3 0 at unstructured data management IT data storage priorities 2012 Virtualization dedupe and cloud NetApp announces Big Data solutions as market grows Load More View All SGI adopts hybrid storage for clustered NAS Symantec aims Data Insight 3 0 at unstructured data management NetApp announces Big Data solutions as market grows I spy web servers which don t lie Load More View All News IT data storage priorities 2012 Virtualization dedupe and cloud VNXe the jewel as EMC caned for broken record VNX marketing Sun ZFS 101 View All Problem solve ADS BY GOOGLE Latest TechTarget resources CIO AU Security AU Data Backup Disaster Recovery SMB Storage Storage Channel Search CIO com au Internet of Things Food safety apps set to emerge Food safety could emerge as a key application for the Internet of Things in the coming months providing real time visibility in Cloud security culture a building block for today s businesses As organizations today move more data to the cloud it s important to cultivate a cloud security culture and enlist a CISO a new How to do an advanced data analytics project on the cheap Delivering an advanced data analytics project to the business can cost a fortune But with some imagination CIOs can do it for Search Security com au Weigh the benefits risks of going mobile in the enterprise Smartphone and tablet use in the enterprise can help boost productivity improve employee satisfaction and lower costs However Conquer BYOD risks with mobile device management Bring your own device has a number of inherent security challenges Expert Lisa Phifer explains how a mobile device management The IT security gold rush is on Security budgets in Australia are soaring as hacking incidents reach new levels Search Data Backup Data protection technologies Experts offer predictions Predictions for data protection in 2016 include

    Original URL path: http://searchstorage.techtarget.com.au/news/2240019633/HDS-makes-services-a-formality (2016-02-10)
    Open archived version from archive



  •