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2 June 2015 © Enterprise Storage Group, Inc. 1 The Case for File Server Consolidation using NAS Nancy Marrone Senior Analyst The Enterprise Storage Group, Inc. http://www.enterprisestoragegroup.com
2 June 2015 © Enterprise Storage Group, Inc. 2 Topics for Today Consolidation of server and storage resources Agenda What are the issues with today’s storage infrastructure How does consolidation using NAS help address these issues How do we move to a consolidated NAS infrastructure
2 June 2015 © Enterprise Storage Group, Inc. 3 What keeps you up at night? Are the business applications performing to expectations/requirements? Is the data always available? Can we meet the backup windows? What happens if an application needs more storage resources? What if we lose people? Can we keep up with managing our complex environment? How do we address growth with current budget/staff constraints? Consolidation of storage and server resources can help address these issues
2 June 2015 © Enterprise Storage Group, Inc. 4 Current State of Storage Market Storage Requirements continuously growing Storage capacity requirements growing at 70% a year Amount of data stored on Windows servers estimated to be doubling every 12-18 months IT budgets stagnant Yet 50% of administrators surveyed need to manage growing IT environment with same (or fewer) staff Cost of managing storage 3-5x cost of storage Management tasks- find available storage, determine usage patterns, load balance, migrate and replicate data, add new storage,backup, archive etc Costs higher in DAS environments- done on individual basis
2 June 2015 © Enterprise Storage Group, Inc. 5 Common Storage Infrastructure Environments Over 70% of environments still primarily configured with direct attached storage Over 50% of general purpose servers used as file servers (not optimized for performance,scalability) Files “shared” by transfer to another server (email, ftp) Then saved again at local level (either on DAS or file server) Backup generally on a server by server basis
2 June 2015 © Enterprise Storage Group, Inc. 6 Problems with today's storage infrastructure Every host/server and it’s storage (DAS) must be managed separately Disparate tools, different GUIs Ineffective use of resources On average DAS and File server utilization around 30% Makeshift file servers (not optimized) impede performance Difficult and time consuming to add additional resources Backup and recovery is a nightmare Backup windows long (back up individual servers, often duplicate data) Recovery of individual servers very time consuming Multiple points of failure Heterogeneous file sharing difficult (CIFS vs NFS)
2 June 2015 © Enterprise Storage Group, Inc. 7 Problems with today's storage infrastructure Examples of Storage issues affecting applications Database applications Performance- all clients must go through app server to DAS Reliability- app server goes down no access to data (without cluster failover- performance may degrade afterwards) Messaging applications Performance issues- GP servers used as file servers Scalability- File servers limited in number of hosts it can handle Manageability- File servers often geographically distributed- no central repository All applications rely heavily on the performance of their storage infrastructure
2 June 2015 © Enterprise Storage Group, Inc. 8 Solution- Migrate to Networked Storage Determine data requirements What data/files are currently being used Where is data Who is using data What data is critical for your business Consolidate Storage Resources –SAN or NAS Migrate data from multiple sources to few Consolidate File Servers Move from multiple single host/DAS configurations to central source Enables consolidation of backup and print servers Use software tools to manage many as one
2 June 2015 © Enterprise Storage Group, Inc. 9 Networked Storage Options- SAN or NAS Both enable consolidation and sharing of storage resources SAN- Storage Area Networks Separate network running Fibre Channel protocol Requires specialized hardware (HBA’s, switches) Like DAS, but storage resources are shared SCSI calls made over FC protocol NAS- Network Attached Storage Server optimized for fast file access/sharing OS is streamlined for one purpose Has integrated storage Attaches to standard IP LAN Use CIFS and NFS and other protocols for heterogeneous server access NAS Gateway NAS “head” does file serving, uses shared storage on SAN
2 June 2015 © Enterprise Storage Group, Inc. 10 Storage Network Architecture SAN= block access Typically need speed of direct block transaction Need to know location of block-generally accessed by application Typical to use SAN for large scale DB applications NAS=File access Used for any file based transaction More user oriented (know name of file required) Uses existing network infrastructure Typical for messaging, development applications, file sharing SAN- good for sharing resources NAS- good for sharing data
2 June 2015 © Enterprise Storage Group, Inc. 11 Storage Consolidation Today’s Focus Storage Consolidation using NAS
2 June 2015 © Enterprise Storage Group, Inc. 12 Benefits of Migrating to NAS Improve performance NAS solutions are dedicated, streamlined for one purpose Front end optimized for NFS and CIFS call performance Reduce Storage Capacity Requirements Multiple heterogeneous users have access to same information Eliminate need for multiple DAS resources Eliminate duplicate files- use resources more effectively Single file serves multiple users Sharing helps increase utilization rates-all files located on one server Increase reliability Reduce number of points of failure Can enable failover and clustering
2 June 2015 © Enterprise Storage Group, Inc. 13 Benefits of Migrating to NAS Reduce management costs Central management Reduce time consuming/repetitive tasks Improve Scalability Additional storage easily added to NAS Simplifies configuration changes Significantly Reduces time required to add capacity Improve Security Set policy around who has access to what files Policies set by groups or user
2 June 2015 © Enterprise Storage Group, Inc. 14 Benefits of Migrating to NAS Increase Data Availability Replicate/snap non-disruptively Backup from Snap results in little downtime for application HA built into some NAS appliances Eliminate backup issues Backup from single source No need to back up multiple, duplicate files- reduce windows All of the above =Reduced overall costs
2 June 2015 © Enterprise Storage Group, Inc. 15 How do I get there? First step – assess your environment SRM solutions allow to to see actual usage Report on what users use what files Can find duplicate and redundant files Reports can predict growth- use to determine size of NAS solution Consolidate from multiple file servers or DAS environment to single NAS Tools available to aid in migration with little disruption Configure system to enable sharing amongst appropriate users
2 June 2015 © Enterprise Storage Group, Inc. 16 Then what? Continuous use of SRM solution will ensure effective utilization of resources Restrict certain files Option: set quotas on individual users Determine if files that are aged, not accessed recently should be removed Reports help determine growth requirements Employ additional features Replication solutions (SNAP, Mirroring) for data availability Clustering for high availability and reliability File directory services for ease of use and management of files
2 June 2015 © Enterprise Storage Group, Inc. 17 State of NAS Market Recently Microsoft solutions gained over 30% of NAS market share - Why? Easy to deploy/manage/ support Windows powered NAS fits seamlessly into MS environment Long standing partners (OEMs, integrators) easily support solution Very low cost per GB Offers significant management capabilities Active Directory Snapshot capability (Persistent Storage Manager) Replication features Cluster solutions Embedded SRM (Storage Manager)
2 June 2015 © Enterprise Storage Group, Inc. 18 Summary Server and Storage Consolidation using NAS will pay off In multiple ways (Less than 12 Months ROI) Gains in: Performance Management efficiencies Reliability Easy to implement ESG perspective- with current technologies and the cost per MB, there is no reason to not consolidate your storage resources - the benefits outweigh any arguments
2 June 2015 © Enterprise Storage Group, Inc. 19 www.enterprisestoragegroup.com End Users log in- get research for free
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