IBM XIV System Storage

Transkript

1 IBM XIV System Storage Ein technischer Überblick Christian Ott XIV Solution Architect

2 Agenda Heutige Herausforderungen Vergleich zwei Speicherarchitekturen Einführung XIV Speichertechnologie XIV Architektur XIV Funktionen Zusammenfassung

3 External storage capacity growth trend External disk shipments & price (History & Forecast) $ $ PB $/GB $ $ $ $ $9.10 $6.13 $4.14 $2.80 $ Source: IDC, 2007

4 Traditional Storage Systems: Complex Data Layout You almost never get optimal performance When using subset of disks for LUNs Data layout planning Optimal performance requires complex data layout planing Several steps required to stripe data Format arrays Create LUNs and map to hosts Group LUNs into a volume group Create striped filesystems across disks Data layout is static Changes is configurations such as new disks require manual work to redistribute data.

5 Traditional Storage Systems: Orphaned Space Effective Capacity Static dedication of LUNs to disk-arrays leads to orphaned spaces. De-provisioning of unutilized space is complex and requires manual steps

6 XIV Historie 2002 Gründung der Firma XIV Moshe Yanai Chefentwickler EMC Symmetrix 5 Firmengründer sind vom 14. Abschlussjahrgang der israelischen Talpiot Elite Universität 2005 erste XIV Nextra in Israel verkauft IBM kauft XIV IBM kündigt IBM XIV Storage System (Gen. 2.0) an IBM kündigt IBM XIV partial System an IBM baut Produktionsstätten aus IBM XIV SW Fidelity Investments kauft XIV IBM XIV SW Über Systeme weltweit verkauft XIV Nextra, verfügbar seit 2005 IBM XIV Storage System, verfügbar seit Sept. 2008

7 Grid Architektur (Details) Host FC Data Module Host iscsi Data Module Host Data Module Ethernet Data Module UPS UPS UPS

8 Speicherarchitektur-Vergleich Zentraler Cache, CPU, Backplane Spezielles HW Design -> Hohe Kosten Manuelles Tuning notwendig Bedienung und Benutzung komplex Lange Enwicklungszyklen Massiv parallele Grid Architektur Standardbauteile Tier 1 Geschwindigkeit und Funktionen Selbstheilung und Optimierung Kurze Entwicklungszyklen Interface Interface Interface Controllers Interface Interface Switching Interface Cache JBOD JBOD Node Node

9 Traditional Dual Controller I/O IOs must pass single or dual controller No parallel IO -> needs fast Disks! Hot spots most likely to occur due to manual data layout procedure Raid configuration/formating Striping etc. Interface Interface Interface Controllers Cache JBOD JBOD

10 XIV s Parallel Architecture Data All IO parallel! Totally balanced: Paths, CPUs, Caches, Dis No hotspots! Data Module Data Module Data Module Data Module Data Module Data Module Switching Switching Data Module Data Module Data Module Data Module Data Module Data Module

11 Performance Storage Management Legacy XIV Architectures COMPLETELY Automated Process NO Pre-Planning AUTOMATIC load balancing HIGHEST capacity utilization COMPLEXITY GROWS WITH CAPACITY REQUIRES MORE Pre-Planning INCREASED RISK to existing production REQUIRES MORE monitoring & tuning LOWER capacity utilization

12 Funktionen 1 TB Wiederherstellung < 30 min SnapShots (Re-Direct on Write) kostenlos Data Mirroring (Async + Sync) kostenlos Data Migration kostenlos XIV Mgmt. Software kostenlos XIV Performance Monitoring + Reporting kostenlos Thin Provisioning ThinReclamation - kostenlos

13 XIV Value Proposition Impact Lower acquisition cost 20-30% All advanced software features included Commodity hardware reduce cost Power & cooling cost 25-50% 50% greater usable capacity per sq. foot (11 TB/SF) 25-30% less power & cooling per usable Storage management cost 50-80% Self healing & load balancing design Major reduction in tuning More responsive to mission requirements Consistent performance Improved capacity usage 20-50% XIV sold as USABLE capacity Designed to perform well at >90% capacity utilization 25-90%

14 Further Resources XIV Home: Full documentation: wilson.boulder.ibm.com/infocenter/ibmxiv/r2/index.jsp XIV Storage Blog: radtke.eu/xiv-storage-blog 3rd Party Blog: reasons-why-ibms-xiv-isnt-perfect/

15 Christian Ott