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  • How to choose a NAS
    written to both drives at the same time There s a performance hit but the result is that if one disk fails you shouldn t lose any data It s worth remembering that there are two types of hard disk those that have failed and those that will fail With arrays of three or more disks RAID5 comes into play In a RAID5 array the data is written to more than one disk but it s done in such a way so that if one disk fails you won t lose any data In other words it s a bit of a cross between RAID0 and RAID1 RAID5 offers both performance improvements and hardware redundancy A RAID5 array of four 1TB hard drives will deliver about 3TB of available storage RAID6 is similar to RAID5 but allows for two disks to be lost without any data loss RAID10 is a hybrid RAID level that works like both RAID 1 and 0 together Essentially two RAID0 arrays are configured so that the data is written to both arrays at the same time There are several other RAID levels but these options are the most common and will serve the needs of the vast majority of people Choosing disks Many NAS makers allow you to choose between buying a ready to go unit that s loaded up with some drives or sell you an empty chassis We d suggest buying the empty chassis so that you can choose your preferred drives Just one thing not all drives are deemed compatible with all NAS devices Most manufacturers maintain a compatibility list such as this one for the Dlink DNS 1200 05 One thing to be especially careful about is that many NAS devices won t play well with green drives that automatically power down in event on inactivity Some NAS will see this as a disk failure so check carefully before committing to your drive purchase Features The features you ll want will depend on what you re planning to use the NAS for If you re running a multi platform office then make sure that your chosen NAS can share files over the right protocols If the intent is to make your NAS accessible from outside the LAN then Secure FTP might be worth considering Given that most homes seem to have an iPad iPhone of iPod touch it may be worth ensuring that your NAS can support WebDAV as a file sharing protocol so that your iOS devices can access and share data A number of QNAP NAS devices support WebDAV One of the most common applications for a NAS is as media server Many devices mow natively support iTunes sharing as well as UPnP and other media sharing systems such as Twonky Media Server There are also download managers backup systems and lots of other applications that can come as part of a NAS It s worth thinking about all the potential bonus features you NAS might offer This was

    Original URL path: http://searchstorage.techtarget.com.au/tip/How-to-choose-a-NAS (2016-02-10)
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  • Troubleshoot and Solve Buying data storage Problems - SearchStorage.com.au
    NAS Choosing a NAS might be complex but there are a few things you can do to simplify the choice Continue Reading What is cloud storage Learn about cloud storage and its possible role for your organisation in this learning guide Continue Reading 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 the resurgence of tape rise of copy data management special optimized options Veeam Availability Suite to get physical complement Veeam CEO Ratmir Timashev talks physical backup the shifting enterprise competitive landscape and why he has no plans to take Arcserve Unified Data Protection

    Original URL path: http://searchstorage.techtarget.com.au/info/problemsolve/Buying-data-storage (2016-02-10)
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  • Storage Radio: Symantec CEO switch, Proximal Data releases AutoCache
    allow users of its PCIe RamSan cards to boot operating systems from the cards According to the company the new feature allows system administrators using the upgraded cards to save money by deploying servers without needing disk drives or supporting hardware The firmware upgrade is free for owners of the company s RamSan 70 and RamSan 80 flash cards and the upgrade will be included with future products And in other flash card vendor news Proximal Data unveiled AutoCache its new solid state caching software that the company said can boost performance of heavily virtualized server environments Solid state caching technology improves server performance by moving frequently accessed data to flash cards or solid state drives Proximal said AutoCache stands out because it can tie into VMware s ESXi hypervisors This allows AutoCache to monitor hypervisors and move any hot data blocks over to the solid state cache AutoCache also supports VMware data movement features And tech site Ars Technica reports this week that Google paid a total of 12 4 billion for Motorola last May citing data on file with the Securities and Exchange Commission That includes 5 5 billion for the telecom pioneer s patents 2 6 billion for goodwill money for what Google called customer relationships as well as other assets reported to the SEC Google purchased Motorola for its patents to help shore up its Android operating system for mobile devices This was first published in July 2012 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

    Original URL path: http://searchstorage.techtarget.com.au/podcast/Storage-Radio-Symantec-CEO-switch-Proximal-Data-releases-AutoCache (2016-02-10)
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  • SGI adopts hybrid storage for clustered NAS
    speed of the SSDs If I m writing I m writing to the speed of the SSDs Floyd Christofferson SGI s director of storage products SGI software drives the Hybrid Storage Pools HSP that let the system maximize SSDs DRAM and 7 200 rpm spinning disk SGI NAS uses DRAM in what the vendor calls an Adaptive Replacement Cache ARC that stores frequently and recently used data A separate Intent Log using SSDs acts as a write cache to optimize write workloads such as NFS A Level 2 ARC optimizes reads Customers can use HSPs to set up device types for read operations write operations or capacity based on IOPS and the read write ratio inside a pool We virtualize the cache based on the SSDs that are integrated inside the storage pool said Floyd Christofferson SGI s director of storage products If I m reading to the system then I m reading to the speed of the SSDs If I m writing I m writing to the speed of the SSDs The system supports data deduplication thin provisioning and compression through ZFS SGI claims the system scan scale up or scale out by adding nodes based on the addition of memory for performance or drives for capacity There s no artificial limit on how many systems can be tied together in a global namespace Christofferson said You can start with a base system and continue to scale if you need more capacity We re saying that you can have this in whatever flavor you want at whatever scale If your workflow changes we adapt in the same hardware with the same software You throw more drives in to beef up the I O characteristics Steve Conway research vice president at IDC s High Performance Computing Group said SGI NAS uses a combination of commodity hardware and its own hardware for a high density system that requires fewer hard drives Typically in large storage configurations you have lots of disk drives and at some point the drives fail Conway said SGI has designed disk parts to deal with the resiliency issue so if a drive fails then recovery occurs without interruption The pool allows you to use 7 200 rpm drives that are more reliable than the 15 000 rpm drives The mean time between failure for 7 200 rpm drives is longer Dig Deeper on Data storage vendors All News Problem Solve 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 I spy web servers which don t lie Load More View All 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 Richard Gere loves EMC so it probably isn t worried about NetApp haters Load More View All News IT data storage priorities 2012 Virtualization dedupe and cloud VNXe the jewel as EMC

    Original URL path: http://searchstorage.techtarget.com.au/news/2240148542/SGI-adopts-hybrid-storage-for-clustered-NAS (2016-02-10)
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  • Dell EqualLogic supports 10 Gigabit Ethernet copper for iSCSI SAN
    to the older 6010 model They re essentially fixing that problem The PS6110 and entry level PS4110 iSCSI arrays can be configured with either the more expensive SFP optical or the cheaper 10GBASE T copper said Travis Vigil executive director of Dell s EqualLogic product management We believe 10GBASE T will be an accelerator to 10 GigE Vigil said A lot of companies are looking at converged networks and using storage and networking in the same infrastructure The PS6110 and PS4110 are dual controller systems but the PS6110 series controller holds more iSCSI connections and processes more IOPS The PS6110 comes in six models and can scale up to 72 TB in a single array and 1 2 PB in a pool Four of the models come in a 2U form factor supporting 200 or 400 GB enterprise multi level cell solid state drives eMLC SSDs 2 5 inch high performance SAS drives a hybrid configuration with a mix of SSDs and HDDs or 3 5 inch high performance or high capacity SAS drives The other two models come in a 4U form factor supporting 3 5 inch SAS and 3 5 inch nearline SAS The PS4110 series consists of four models with no SSD option They scale to 36 TB in one array and 72 TB in a group The systems come in 2U enclosures supporting 2 5 inch high performance SAS and 3 5 inch high capacity and high performance SAS and 3 5 inch nearline SAS Pricing for the PS6110 starts at approximately 39 000 while the PS4110 starts at around 18 700 Both include three years of Dell ProSupport services Dell is also enhancing the Dell EqualLogic Host Integration for Microsoft 4 0 The host integration software now allows IT managers to manage multiple Microsoft hosts from a single Auto Snapshot Manager instance for centralized data protection and protect and recover virtual machines in a Microsoft Cluster Shared Volumes CSV with a snapshot Finally Dell is offering the Dell EqualLogic Host Integration Tools for Linux 1 1 for the first time but the snapshot feature can t be activated from a central console 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

    Original URL path: http://searchstorage.techtarget.com.au/news/2240146032/Dell-EqualLogic-supports-10-Gigabit-Ethernet-copper-for-iSCSI-SAN (2016-02-10)
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  • News, Analysis and Opinion for Data storage vendors - SearchStorage.com.au
    Demand Survey says 40 of enterprise storage users plan to outsource some of their storage needs in the next twelve months with an average of over 250TB will be acquired by each user October 30 2011 30 Oct 11 I spy web servers which don t lie The storage blogosphere is reporting an interesting incident involving Symantec and Permabit plus a stoush between Oracle and NetApp September 25 2011 25 Sep 11 Bad Sectors the latest storage news Our regular roundup of storage news sees EMC notch a Canberra win a couple of agencies announce their plans to buy SANs Ninefold s sneakernet a nasty rumour about HP and a new entrant to the local SAN market September 19 2011 19 Sep 11 Richard Gere loves EMC so it probably isn t worried about NetApp haters Our monthly wade through the slime of the storage blogosphere has found an EMC Symmetrix making Richard Gere look animated and some rather odd Spam in NetApp s back yard September 12 2011 12 Sep 11 Four hot storage startups from the floor at VMworld 2011 VMworld 2011 s Solutions Exchange saw a bright new crop of storage companies step onto the industry s stage We were there to watch them debut August 29 2011 29 Aug 11 VMware CEO Paul Maritz on the role of storage in the virtual world VMware has recently released some products that threaten traditional storage models What s the company up to CEO Paul Maritz explains the company s attitude to storage in this brief podcast from VMworld 2011 August 26 2011 26 Aug 11 Bad Sectors Dell HP refresh storage ranges Dell has announced new EqualLogic products HP has announced a storage federation and the VCE alliance has received a boost from a global partner August 22 2011 22 Aug 11 Bad Sectors Amazon warns on S3 security UXC and CommVault cuddle This week s roundup of storage news touches on cloud security and a stronger alliance between UXC and CommVault August 07 2011 07 Aug 11 Bad Sectors Maritime Safety Authority loves Gartner Blu Ray for servers The Australian Maritime Safety Authority will only consider companies appearing in a Gartner magic quadrant for up to 10million of storage August 07 2011 07 Aug 11 VMware Intel EMC NetApp and IBM battle in the blogs The storage blogosphere is ablaze with many battles over VMware XIV VMAXe and more 1 2 3 4 5 6 7 8 9 10 11 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

    Original URL path: http://searchstorage.techtarget.com.au/info/news/Data-storage-vendors (2016-02-10)
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  • VNXe the jewel as EMC caned for broken record VNX marketing
    his view that Pillar cannot afford all the marketing BS that EMC affords for good measure It s a fun competitive spray StorageBod also poked effective fun The consensus is that the launch did involve a lot of hype and that the 41 products in a single day spiel was hype especially given that nearly all of them regarding VMAX had been announced or at least pre announced in the past But there is interest in the new VNXe which Chuck Hollis wrote up by evoking some deep Data General history Others also like the VNXe such as Techhead Information Playground and Storage Architect Virtual Geek really likes it There s a surprisingly small amount of comment on the new Data Domain boxen other than from The Backup Blog Our take Well VNXe looks interesting VNX looks promising but overall it seems odd when a company that has staked its name on information management makes a big launch all about speed What led me to that conclusion Well when I cleaned out my desk the other day My home office has moved to another room I found this tin which conceals a tangram puzzle I m not sure how old it is but I m betting at least three years and believe it is a year or three older EMC hardly mentions ILM these days Tiering is the jargon du jour Yet even the new version of FAST seems to be a little short of the ILM vision EMC s been talking up for years But marketing would never get ahead of reality would it Storage Switzerland Fiji Something else your editor found over the southern summer is this piece from the Fiji Sun For those of you who don t follow South Pacific politics Fiji is currently governed by its military and freedom of the press is far from complete Local newspapers I found during a lovely vacation veer between careful sycophancy nationalism and bulk cut and paste I presume the story above which breaks from a story about consumer technology trends into recaps of Storage Switzerland on FCoE is a result of the latter Either that or a wire feed got badly borked or maybe the Fiji government has an unusual interest in data centre networking While we re on FCoE there s been reaction to Intel s new version of it that we wrote up here RayOnStorage says it is important StoraegBod blogged about it too Elsewhere Preston de Guise has been playing with Data Domain Boost and William Vanbenepe is taking a look at REST and other cloud APIs ZeroWait officially announces it is open for business in Australasia David Chappell asks what on earth is PaaS IDEAS International looks at server innovations Lastly NetApp s Virtual Storage Guy notes NetApp is now the 5 th best place to work in the USA We re pretty sure that s a fall although 5 th is still pretty good This was first published in February 2011 Dig

    Original URL path: http://searchstorage.techtarget.com.au/tip/VNXe-the-jewel-as-EMC-caned-for-broken-record-VNX-marketing (2016-02-10)
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  • Sun ZFS 101
    quotas mount points compression etc Essentially you can create hundreds or thousands of file systems on a single system perhaps one for each user s home directory The more data sets the more control you have Let us create some data sets using the zfs create command and change the point for them using the ZFS mountpoint property root quadra zfs create mypool home root quadra zfs create mypool home user001 root quadra zfs create mypool home user002 root quadra zfs create mypool home user003 root quadra zfs set mountpoint myhome mypool home root quadra zfs list NAME USED AVAIL REFER MOUNTPOINT mypool 186K 2 72G 19K mypool mypool home 76K 2 72G 22K myhome mypool home user001 18K 2 72G 18K myhome user001 mypool home user002 18K 2 72G 18K myhome user002 mypool home user003 18K 2 72G 18K myhome user003 Notice that we ve created nested data sets and when I changed the mount point for mypool home it also trickled down to all its children This recursive behavior is known as inheritance I could easily override any one of the children but when dealing with large numbers of data sets this makes life much simpler Now let us uncover some of ZFS s deep magic by looking at ZFS data set properties on one of these data sets root quadra zfs get all mypool home NAME PROPERTY VALUE SOURCE mypool home type file system mypool home creation Wed Dec 31 14 01 2008 mypool home used 76K mypool home available 2 72G mypool home referenced 22K mypool home compressratio 1 00x mypool home mounted yes mypool home quota none default mypool home reservation none default mypool home recordsize 128K default mypool home mountpoint myhome local mypool home sharenfs off default mypool home checksum on default mypool home compression off default mypool home atime on default mypool home devices on default mypool home exec on default mypool home setuid on default mypool home readonly off default mypool home zoned off default mypool home snapdir hidden default mypool home aclmode groupmask default mypool home aclinherit restricted default mypool home canmount on default mypool home shareiscsi off default mypool home xattr on default mypool home copies 1 default mypool home version 3 mypool home utf8only off mypool home normalization none mypool home casesensitivity sensitive mypool home sharesmb off default Here we have a variety of useful knobs to turn The first several properties are informational such as creation time space used available and referenced Here is a short list of what some of these properties are and how to use them quota Space quotas can be imposed anywhere and they are recursive by default Simply zfs set quota 10g mypool home user001 and that user can never use more than 10GB of disk reservation Similar to a quota but reservations are pre allocated The disk space is removed from common use so that the space is guaranteed mountpoint Place where the data set is mounted Mount points are created by ZFS on your behalf compression Just zfs set compression on mypool and all new data will be compressed Define this for everything or on a case by case basis atime If atime is on everytime you touch a file its time stamp will be updated which can be a lot of unwanted write activity Use zfs set atime off mypool to disable it readonly Want to lock away archive data Just zfs set readonly on mypool home user002 and the user can look but not touch Three really exciting options above are sharenfs shareiscsi and sharesmb By simply turning the property on zfs set sharenfs on mypool home you ve exported that and any children via NFS No fuss no muck turn it on and your done The same applies to iSCSI or CIFS smb Volumes Like file systems we can also create block volumes as easily With these volumes we can create legacy file systems UFS VxFS etc or share iSCSI block volumes root quadra zfs create mypool volumes root quadra zfs create V 500m mypool volumes volume001 root quadra zfs list NAME USED AVAIL REFER MOUNTPOINT mypool 500M 2 23G 20K mypool mypool home 76K 2 23G 22K myhome mypool home user001 18K 2 23G 18K myhome user001 mypool home user002 18K 2 23G 18K myhome user002 mypool home user003 18K 2 23G 18K myhome user003 mypool volumes 500M 2 23G 18K mypool volumes mypool volumes volume001 500M 2 72G 16K You can see that creating a block volume data set is done in the same way as file system data set We simply add V proceeded by the desired size If we d added the s flag after create we would have created a sparse volume which is better known as thin provisioning Thin provisioning means that we ve defined a block allocation but we re not going to actually steal away the blocks until they are actually requested In this way we could create dozens of block volumes even if we didn t have enough space for them right now Because resizing file systems can be complex this allows us to oversize for the future even if the disk isn t actually available at the moment Here is a grotesque example on my little pool with only 2 2 GB available root quadra zfs create s V 1t mypool volumes megavol root quadra zfs list NAME USED AVAIL REFER MOUNTPOINT mypool 500M 2 23G 20K mypool mypool volumes 500M 2 23G 18K mypool volumes mypool volumes megavol 16K 2 23G 16K mypool volumes volume001 500M 2 72G 16K Notice I created a 1 TB volume but its only consuming 16 K Snapshots and cloning ZFS makes things easy to create and manage as we ve seen but it also brings enterprise grade features down to the average user The best example is that of snapshots and cloning We can create a snapshot using the zfs snapshot command and following the data set name with an and

    Original URL path: http://searchstorage.techtarget.com.au/tip/Sun-ZFS-101 (2016-02-10)
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