PRIMERGY DuplexDataManager

Transcription

1 PRIMERGY DuplexDataManager Configuration Examples FibreCAT SX60 / SX80 / SX88 Windows Server 2003 / 2008 June 5, 2009

2 MultiPath I/O Fault Tolerance by Redundant Fibre Channel Paths 1

3 MultiPath MultiPath handles Path Redundancy standby active PRIMERGY FibreCAT SXxx 2

4 MultiPath Load Balancing Option Channel = 1 LUN 1,3,... Channel = 0 LUN 0,2,... Load Balancing Algorithms: a) AutoBalance load balancing algorithm b) Per LUN selectable path 3

5 MultiPath standard configuration MultiPath 300m Interconnected 4

6 MultiPath external switch 300m A Switch B A B Switch StraightThrough 5

7 MultiPath Tips and Tricks General Recommendations MultiPath Do not connect tape devices to FC zones which uses MultiPath better use a separate HBA backup devices Do not establish multiple connections to one target bee MultiPath installation To prevent issues with unmanaged LUNs or enclosure devices all connected storages should have a LUN 0 HBA Settings All settings are storage specific, there are no HBA specific settings Check presence and status of all MultiPath Groups MultiPath status must show Active / Standby Check Acknowledge Configuration to enable the monitoring of missing paths 6

8 DuplexWrite Highest Data Availability by Mirroring 7

9 DuplexWrite DuplexWrite mirrors Data PRIMERGY mirror original FibreCAT SXxx 8

10 DuplexWrite Diskload Balancing Option block# > boundary block# < boundary Diskload Balancing Algorithm: read channel depends on block number boundary dynamically adjusted 9

11 DuplexWrite standard configuration Dupl.Write 300m 2nd storage controller optional, adds some level of redundancy Interconnected Interconnected 10

12 DuplexWrite high permance (4 HBAs) Dupl.Write 300m A LUNs B LUNs A LUNs B LUNs Interconnected Interconnected 11

13 DuplexWrite Tips and Tricks Configure DuplexWrite first Install DDM Build all DuplexWrite groups and start recovery...configure your system and applications HBA Settings All settings are storage specific, there are no HBA specific settings No special settings DuplexWrite, use standard (or MultiPath) settings Check presence and status of all DuplexWrite groups DuplexWrite status must show Online all (partner) disks Be careful using Disk Administrator Never delete a COD partition, delete DuplexWrite group first 12

14 DuplexDataManager Highest Storage Availability by DuplexWrite & MultiPath 13

15 DuplexDataManager DuplexWrite & MultiPath Location1 Location2 14

16 DuplexWrite & MultiPath standard configuration Dupl.Write MultiPath 300m A B A B A B A B Switch Switch StraightThrough StraightThrough 15

17 DuplexDataManager Disaster Resilient Solution 16

18 Disaster Resilient Solution MS Cluster & DuplexWrite & MultiPath Cluster Interconnect Location1 Location2 17

19 Disaster Resilient Solution MS Cluster handles Server Redundancy Cluster Interconnect Location1 Location2 18

20 Disaster Resilient Solution MultiPath handles Path Redundancy Cluster Interconnect Location1 Location2 19

21 Disaster Resilient Solution DuplexWrite mirrors Data Cluster Interconnect Location1 Location2 20

22 MS Cluster & MultiPath standard configuration MultiPath 300m MultiPath Interconnected 21

23 MS Cluster & MultiPath external switch MultiPath 300m MultiPath A Switch B A B Switch StraightThrough 22

24 MS Cluster & DuplexWrite standard configuration Dupl.Write 300m Dupl.Write 2nd storage controller optional, adds some level of redundancy Interconnected Interconnected 23

25 MS Cluster & DuplexWrite & MultiPath standard configuration 300m Dupl.Write MultiPath A B switch A B Switch interconn. Switch Dupl.Write MultiPath A B A B Switch Switch all pathes should be separated by port zoning StraightThrough StraightThrough 24

26 MS Cluster & DuplexWrite & MultiPath 2 switch solution 300m Dupl.Write MultiPath switch interconn. A B A B A B A B Switch Switch Dupl.Write MultiPath all pathes must be separated by port zoning! configuration not recommended! switch failure would cause outage of the dedicated storage StraightThrough StraightThrough 25

27 MS Cluster & DuplexWrite & MultiPath 2 switch solution with 6 interconnects Dupl.Write MultiPath all pathes must be separated by port zoning 300m Dupl.Write MultiPath A B A B A B A B Switch Switch StraightThrough StraightThrough 26

28 DuplexDataManager! Avoid Split Brain Situations! single point of failure Dupl.Write MultiPath Switch switch interconn. Switch Dupl.Write MultiPath StraightThrough StraightThrough 27

29 Setting up MS Cluster & DDM (WS 2003) Bringup nodea, and nodeb separately (use ServerStart) Install Windows Server 2003 including latest update & hotfixes Install DuplexDataManager on all nodes Setup cluster specific FC controller settings (timeouts...) Connect HBA, switch, storage - including multi-pathing Setup FC zones: one zone each pair of ports (HBA... storage) Configure the Storages Shut down all but nodea Configure LUNs pairwise on both storages (DuplexWrite groups) Register all nodes each path Create DuplexWrite groups Shut down all but nodea Create all DuplexWrite groups on storagea (no mirror disks) Add second disks at storageb and start recover Reboot this node (nodea) Install Microsoft Cluster Services Install MSCS on nodea (nodeb off) Install MSCS on nodeb (cluster installation - join) Check DDM and cluster functionality Prim Prim Prim Prim Prim Prim 28

30 Setting up MS Cluster & DDM (WS 2008) Bringup all nodes separately (use ServerStart) Install Windows Server 2008 including latest update & hotfixes Install DuplexDataManager on all nodes Setup cluster specific FC controller settings (timeouts...) Connect HBA, switch, storage - including multi-pathing Setup FC zones: one zone each pair of ports (HBA... storage) Configure the Storages Configure LUNs pairwise on both storages (DuplexWrite groups) Register all nodes each path Create DuplexWrite groups Shut down all but one node Create all DuplexWrite groups Add second disks (do not start recover, status is Online - Error) Reboot this node, start all other nodes Add the feature Failover Clustering Start the Failover Cluster Management, select Validate a Configuration Evaluate the cluster validation log (do not proceed until it is error free) Create the Failover Cluster Recover all DuplexWrite groups on the node which owns the disk resource Create all partitions on the cluster disk resources (DuplexWrite groups) Acknowledge the MultiPath configuration on all nodes If all DuplexWrite groups are Online test the functionality (e.g. Path failover, moving resources to other nodes,... ) Install the Failover Clustering applications. Prim Prim Prim Prim Prim Prim 29

31 DuplexDataManager Documentation General hint: read the related documents! Contained on DDM-CD: Readme Online help ( newest / best reference! ) Configuration slides DDM related links: DDM's home (Intranet) > DuplexDataManager Partners (Corporate Extranet) > Product catalog > Server products > Industry standard > High availabiliy products Online Manuals (Internet) > Industry Standard Servers > Software > Select High Availability > Select PRIMERGY DuplexDataManager PRIMERGY clustering and disaster tolerance (Internet) > Business > Products > Software > High Availability > PRIMERGY cluster DuplexDataManager updates (Internet) > SUPPORT > Driver & Downloads > Full text search Software; Search: DuplexDataManager, MultiPath or MPIO PRIMERGY servers (Internet) Disk storage systems (Internet) MS Cluster documentation 30

32 Appendix FibreCAT SX60 / SX80 / SX88 P0 P1 A P0 P1 B 31

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