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Storage Virtualisatie

Storage Virtualisatie. Sjef van Ham Storage Support Meerheide 101 5521 DZ Eersel s.van.ham@storagesupport.nl 26-maart-2009. Storage Opslag. DAS Direct Attached Storage NAS Network Attached Storage SAN Storage Area Network.

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Storage Virtualisatie

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  1. Storage Virtualisatie Sjef van Ham Storage Support Meerheide 101 5521 DZ Eersel s.van.ham@storagesupport.nl 26-maart-2009

  2. Storage Opslag DAS Direct Attached Storage NAS Network Attached Storage SAN Storage Area Network

  3. Wat is een SAN ? • Gecentraliseerde opslag op basis van een extern schijvencabinet voor verschillende typen servers « alles in één doos » • gecentraliseerd beheer • hoge schaalbaarheid door veel schijfruimte • hogere hardware redundantie en databeveiligingsfuncties : RAID, spare disks 2)Speciaal storage netwerk • Fibre-Channel grote afstand (optische kabels ) hoge bandbreedte (4Gb) • iSCSI ethernet direct toepasbaar en flexibel lage TCO en infrastructuurkosten

  4. Voordelen van gecentraliseerde opslag • Flexibel en eenvoudig toewijzenvan capaciteit • Gemiddelde benutting in een DAS-omgeving is < 50% (SAN = 85%) • Schijf en tape in hetzelfdeopslag netwerk (50-75% minder tape drives) • Minder LAN-verkeer • Gecentraliseerd beheer • Beheer met minder mensen(efficiency stijgt met factor 10) • Opslag, switches en tape toevoegen zonder applicaties stop te zetten • Zo veel redundantie als gewenst

  5. iSCSI Storage • iSCSI staat voor Internet SCSI (Small Computer System Interface). Dit is een op het Internet Protocol (IP) gebaseerde standaard voor IP netwerken.  Deze technologie is een versmelting van twee technieken die zich in de industrie bewezen hebben. Het gaat om de technologie die ontwikkeld is voor communicatie (ip netwerken) en de technologie bedoeld voor dataopslag , SCSI opslag. Door deze te combineren werd het mogelijk zowel de data als de dataopslagcommando's over ip-netwerken te versturen. • Een netwerk protocol voor storage netwerken • Gebruikt de standaard ethernet tcp/ip netwerktechnologie eb hardware

  6. Fibre Channel SAN • Fibre Channels work on a single popular storage networking protocol that offer compatibility to all common storage and database servers.  • Fibre Channels use the FCP protocol ( Fibre Channel Protocol) which is simply a serial bus SCSI protocol.  • This FCP (Fiber Channel protocol) works really well in networks with a high bandwidth requirement. • Fibre Channel is een protocol dat voornamelijk wordt gebruik om data binnen storage netwerken te transporteren. Vaak wordt Fibre Channel geassocieerd met alleen glasverbindingen, maar het protocol kan zowel over glas als koperverbindingen worden gebruikt.

  7. iSCSI voordelen door Eenvoud • Geen noodzaak meer om te investeren in FC technologie of FC • kennis • Ethernet is bekende technologie • Ethernet heeft een lagere TCO en infrastructuur • Geen noodzaak meer om te investeren in FC technolog • of FC kosten • Geen FC HBAs meer nodig, optionele iSCSI ethernet kaarten voor • hogere prestaties

  8. IP based versus FC based • FC HBA’s Standaard Netwerk ip-kaarten • 2-4-8 GB 1GBe-10GBe • Fibre Kabels UTP kabels • Fibre Switches Ethernet Switches 2-4-8 GB 1-10 GBe

  9. De markt Fibre - iSCSI

  10. Storage Requirements for the Traditional Data Center Performance Supports current workloads. No performance degradation Scalability Scale capacity and performance without disruption Availability Data stays online during a site failure, recover from disaster Manageability Simple to admister

  11. Typical Storage Array Architecture • Monolithic Array • Not scalable • Controller head becomes bottleneck • Scales capacity only • Single point of failure • Forklift upgrades

  12. WHICH CAN BE COMBINED IN OUR FRAMELESS ARCHITECTURE Scale when you need, as large as you need it, but view as a single SAN Performance Number of disks

  13. RAID RAID 10, 50 or 5 Disks PS Series Array 1 Typical iSCSI SAN Exchange SQL Archive Switched Gb Ethernet Exchange Archive SQL Storage Pool 1 Pages 2 N

  14. RAID 10, 50 or 5 PS Series Array 2 Exchange SQL Archive Switched Gb Ethernet Exchange Archive SQL Storage Pool 1 Pages 2 2 RAID RAID 10, 50 or 5 3 4 4 Disks PS Series Array 1 N Automatic and transparent load balancing across arrays

  15. The LeftHand Difference

  16. SAN/iQ Storage Clustering SAS • Storage cluster • Aggregates all components for performance • Data is load balanced across all nodes • Predictable scalability • Grow on your terms • Non-disruptive scalability • No forklift upgrades • Scale everything • Throttle bandwidth • Create tiers of storage • Each optimized for type of data • Online volume migration • Simple centralized management • Provisioning • Monitoring • Security SATA Centralized Management Console

  17. SAN/iQ Network RAID • Beyond component redundancy • Protects data from array failure • Synchronous replication • Configure on a per-volume basis • Configure on-the-fly, no down time • High availability • Multiple disks, controllers, or arrays • Zero disruption of data access • Ensures “high availability” for data SAN/iQ Cluster D A A D A B A B C B C B C D C D

  18. SAN/iQ Multi-site SAN • Protect Storage By: • Rack • Room • Floor • Building • Site • Keep Data Online During: • Facility disruption • Natural disaster • Site maintenance A D A D SAN/iQ Cluster SAN/iQ Multi-site SAN A B A B C B C B C D C D Volumes Remain Online

  19. SAN/iQ Thin Provisioning SAN/iQ Cluster • Eliminate Initial Over-Purchasing • No Wasted and/or over-allocated capacity • Purchase what you need today • Delay Future Storage Purchases • Grow capacity as warranted • Simple to Manage • Enable/Disable with radio button on per-volume basis • Allocate only as data is written to the volume • No Reserve necessary Full Provisioned Thin Provisioned Allocated 200GB Available 0GB Used 100GB Wasted 100GB Allocated 200GB Available 0GB Used 50GB Wasted 150GB Allocated 200GB Available 0GB Used 0GB Wasted 200GB Allocated 0GB Available 200GB Used 0GB Wasted 0GB Allocated 100GB Available 100GB Used 100GB Wasted 0GB Allocated 50GB Available 150GB Used 50GB Wasted 0GB 50 GB written 50 GB written 50 GB written 50 GB written 200 GB Volume 200 GB Volume

  20. SAN/iQ Snapshots SAN/iQCluster • Simplified Backup and Recovery • Point-in-time volume copies • Scheduled, Ad Hoc or Scripted • Functional • Volume rollback • Recover granular data • Backup Integration • Microsoft VSS • VMware VCB • Space Efficient • Thin provisioned always • Delta changes only • No snap reservation 1:00 1:00 2:00 3:00

  21. Recovery Server SAN/iQ Remote Copy • Asynchronous Replication • Per volume basis • Scheduled or manual • Thin provisioned • No reserve space required • Simple to Manage • Bandwidth management • Failover / Failback Wizard SAN 1 Vol_1 (Primary) SAN 2 Vol_1 (Remote) Vol_1 (Primary) 2:00 2:00 3:00 3:00 1:00 1:00 Baseline Copy Incremental Copy Incremental Copy

  22. Network Storage Server (NSS)Intelligent Storage Virtualization • True heterogeneous intelligent storage virtualization • Application-aware data protection • WAN optimized disaster recovery services protect operations and save on WAN costs • Increased storage efficiency through Thin Provisioning of resources • Your Storage, Your Infrastructure, Your Solution

  23. DB2 SAP SQL Notes VMware Oracle Exchange TOTALLY Open Storage Virtualization Platform Windows Linux Solaris Netware HP-UX AIX Infini-Band FC iSCSI Any application Any storage protocol Any operating system Any diskarray Virtual Physical Data Existing SAN volumes via Storage Service Enabler Virtualized SAN volumes Thin provisioned SAN volumes

  24. Control storage management costand complexity • Consolidate heterogeneous storage management through virtualization • Minimize storage costs with thin provisioning • Centralized management of client systems simplifies operations

  25. File Servers Critical Applications Application Servers Backup Severs The Solution Starts with Consolidation SAN SAN DAS DAS DAS DAS DAS DAS DAS • Enhanced storage utilization • Consolidated storage management • Opens the door for a host of solutions and innovations

  26. How storage virtualization works • Quickly create virtual volumes from across or within any physical disk resources • - Simple wizard interface • - Physical LUN and virtual devices up to 16TB • Expand volumes as needed • Securely assign volumes to servers through NSS interface Virtual disks Physical disks

  27. Storage abstraction layer • Move the storage intelligence and security into the SAN fabric • NSS creates a storage abstraction layer • Storage services no longer dependent on vendor-exclusive disk functionality • Consolidates services and operations Hosts Fabric Storage abstraction layer Disk

  28. Thin Provisioning:Better Storage Utilization Application server sees virtual volume size • Create a virtual volume to match size of data provisioning request • Allocate a smaller amount of actual physical disk space • Additional physical space allocated automatically as needed • Reduces wasteful over provisioning of storage • Saves disk space and power consumption “800 GB” Virtual 800GB Physical 200GB Data Thin provisioned SAN volume

  29. Minimize downtime • Highly available systems ensure continuous operation • Cross-array mirroring for ultimate data protection • Seamless, zero-downtime data migration

  30. NSS high availability deployment model Shared Storage Failover • NSS appliances deployed in failover pairs • Each NSS server supports its own set of client servers during normal operations • If one devices fails, the second device takes over servicing clients SAN

  31. Data mirroring, zero downtime migration Writes acknowledged from both arrays to ensure integrity • Any-to-any storage array synchronous data mirroring • Ultimate data protection across arrays • Seamless data migration across storage devices. • Create mirror • Switch primary/mirror status without any break in application processing • Remove mirror (old array) Primary Mirror Mirror Primary

  32. Ensure comprehensive data protection • Application-aware snapshots provide rapid data recovery • WAN optimized data replication for disaster recovery and failback • Host-free, accelerated backup eliminates all backup windows

  33. Application aware snapshots MS Exchange Oracle VMware DB2 Informix SAP MS SQL SybaseNotes/Domino Progress Pervasive SQL Each volume has its own snapshot schedule • Up to 256 snapshots per volume • Instant recovery to any captured point in time • Fully mountable as read/write volumes • Application agents and consistency groups for 100% transactional integrity 1:00 1:00 5:00 1:30 9:00 2:00 2:30 8:00 9:00 10:00 11:00

  34. Easily configured any-to-any remote replication • Continuous or periodic modes WAN Optimized Disaster Recovery … … DR Site Full replicas Snapshots • WAN optimized out of the box • Includes WAN data encryption, compression and QoS Copy to tape

  35. WAN Optimized Data Replication 512 byte = empty disk sector • Applications and file systems write far more data to disk than actual changes • NSS scans the changes at a 512 byte level and replicates only the changed data • - Avoids constant re- sending of duplicate data = data written by application or file system 512 byte = sector with actual data change Disk sectors A typical 8k write of data. Many systems send all 8k or more. CDP sends only the truly changed sectors.

  36. VMware Advanced Features • Because continuous uptime is so critical, VMware has created several advanced features designed to help system uptime • - VMware High Availability • - VMotion • - VMware Distributed Resource Scheduler

  37. VMware High Availability/Vmotion/Scheduler • VMware High Availability automatically restarts virtual machines affected by physical server failure VMware ESX Server VMware ESX Server X VMware ESX Server Shared storage pool

  38. The Power of the Virtual SAN • The FalconStor Network Storage Server Virtual Appliance transforms internal disk storage into an iSCSI SAN • - No additional storage network investment needed • Enables VMware advanced features • Cost effective, highly available infrastructure for the SMB and ROBO

  39. ESX SW iSCSI Adapter VirtualMachines FalconStor NSS Virtual Appliance Architecture NSS VA VirtualMachines VMFS Volume VMware ESX Server VMFS Volume IP Network VMware ESX Server Physical Ethernet Adapter FalconStor NSS VA V-LUN Virtual Switch Virtual LUN for VMDK files Server Internal RAID

  40. Virtual Infrastructure HA supported without SAN storage High Availability via NSS VA Cross-Mirror ESX SW iSCSI Adapter NSS VA NSS VA To client Standby NSS VA Internal Storage Internal Storage Same size virtual LUN VMware ESX Server Cross-over Gigabit connection VMware ESX Server NSS-VA Cross-Mirror V-LUN V-LUN Active Access Point Passive Access Point

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