DAS to SAN -i SCSI Offers a Compelling

DAS to SAN -i. SCSI Offers a Compelling Solution PRESENTATION TITLE GOES HERE Presented by: Jason Blosil, Net. App and Gary Gumanow, Dell

Ethernet Storage Forum Members The SNIA Ethernet Storage Forum (ESF) focuses on educating end-users about Ethernet-connected storage networking technologies. Compellent Dell EMC HP Intel Juniper Networks Microsoft Net. App Panasas Sun 2

Webcast Presenter Jason has over 13 years of Finance and Marketing experience with manufacturing and technology firms. For the last 9 years, he has worked in product management and product marketing for companies within the data storage industry. His expertise includes server based storage and Jason Blosil Product Marketing, Net. App RAID, as well as external storage solutions. Jason currently works for Net. App in Product Marketing, specializing in i. SCSI based solutions. Gary Gumanow has over 25 years of experience in IT management, systems integration, product management, and strategic product planning. Gary is currently responsible for product marketing of Dell’s Equal. Logic storage arrays. Prior to Dell he spent ten years at Intel where he brought over 20 Ethernet products to market. Gary holds two patents and has Gary Gumanow Product Line Manager, Dell authored many papers on networking and server platform architecture. 3

Today’s Webinar What we’ll cover today… Describe characteristics and components of Direct Attached Storage (DAS) vs Storage Area Networks (SAN) and why i. SCSI SANs are an ideal first step to greater data center efficiency through Ethernet based SANs You are an… IT managers looking to deploy SANs for the first time IT managers rethinking their existing SAN infrastructure in favor of IP SAN We hope you enjoy this webinar 4

Future Events Two upcoming i. SCSI SIG webinars: March 3 rd – Optimized Storage Environments April 7 th - Disaster Recovery/Cloud/Backup Storage Networking World – Spring 2010 Orlando Sign up for these tutorials when attending: i. SCSI SANs - Ideal Applications, Large and Small i. SCSI - A lossless Ethernet Fabric with DCB 5

Agenda Characteristics & Limitations of DAS Characteristics & Benefits of SANs Why i. SCSI for SANs 6

Buying Storage with DAS Storage purchase includes server hardware with disk capacity Capacity requirement is a guess – so is the right server Typical use is for a single application As capacity requirements increase, so do the number of servers “I need more storage. . . …I’ll buy another server. ” 7

Server Components Motherboard Disk drive Network interface RAID controller I/O cable Fan * Power supply * Single Points of Failure 8 * Commonly redundant in high-end server platforms

DAS Options - JBOD Advantages Greater expandability / higher density storage Redundant components at the JBOD Possible server cluster & failover Disadvantages Server clustering is complicated Server & I/O path still not redundant 9

Additional Challenges with DAS VM 1 VM 2 Limited capacity in server chassis Storage inefficiency - islands Software / firmware updates Backup and restore Site to site failover Limited server virtualization capabilities VM 2 Tape Drive 10

VOTE #1 – DAS USAGE 11

Storage Comparison DAS Application Server NAS Application Server SAN Application Server File System RAID 12

SAN Storage Components Storage network adapters SAN switch Storage system Controller 1 PS 1 Controller 2 PS 3 Passive Midplane Redundant controllers Redundant hot-swap power & cooling units Expandable I/O ports Integrated disk bays or separate disk shelf (JBOD) 13

What SANs Deliver Value of Storage Area Networks Improved reliability and reduced cost of backup Improved scalability of storage capacity and performance Simplified storage provisioning Improved data availability Top reasons for deploying a SAN Back-up Storage consolidation Server virtualization Satisfy demands for additional capacity Performance Disaster recovery New project or application deployment 14

SAN Benefits - Reliability Redundant components No single point of failure RAID and redundancy More spindles with SAN Redundant RAID and cables Backup and recovery is universal Multi-pathing (MPIO) Fault-tolerance Load balancing 15

SAN Benefits - Serviceability Modular design Hot swap of components Software updates are nondisruptive Redundant data paths across network CLR 1 PS 1 CLR 2 PS 2 16 PS 3

SAN Benefits – Resource Mobility Virtual Machines (VMs) stored as files Hypervisors aware of VMs on other servers Permit movement of VM for load balancing or server to server and site failover VM 1 VM 2 Hypervisor VM 2 VM 3 Hypervisor 1 17 2 3 VM Files

SAN Benefits - Net. Boot Network drive appears to server as a local drive Benefits: Boot Volumes No special purpose hardware Broad OS support Lowers server costs Boot volumes protected Improved performance Simplified OS updates / management Improved disk efficiency Easy to scale 18

Network Boot w/ Rapid Cloning LUN cloning reduces capacity required for common boot images Master boot image is replicated with space efficient copies Clones created in seconds/minutes Benefits: Cloned Master Boot LUNs Boot LUN Reduced storage capacity requirements Rapid server deployment Rapid server scaling and redeployment 19

SAN Benefits – Backup and Restore Reduce complexity and increase efficiency Important in virtual server environments Single point backup Reduces network congestion to host Tape Drive SAN Storage Snapshot and disk to disk replication 20

SAN Benefits – Performance & Scalability Service multiple applications with single storage pool More spindles for better IOP performance High performance networks with multiple paths Port bonding for IP traffic – increase overall bandwidth Easily add capacity online Capacity allocation and resizing of LUNs in increments less than a drive 21

VOTE #2 – SAN OBSTACLES 22

Perceived Obstacles to Deploying SANs Complexity Difficult to setup and configure Footprint SANs can require more equipment Management Requires high touch administration Cost All of that redundancy comes with a price i. SCSI Simplifies the Environment 23

i. SCSI SAN Reduces Complexity DAS VM 1 VM 2 i. SCSI SAN VM 2 VM 1 VM 2 Tape Drive i. SCSI Storage 24

Setup - DAS vs i. SCSI SAN DAS Install RAID Driver Install RAID management software (optional) Create volume Format volume i. SCSI SAN Install i. SCSI Driver Install storage management software (optional) Create LUN on storage Map drive letter to storage LUN IP address Format LUN 25

i. SCSI OS Network Boot Support OS Initiator Boot Microsoft Native S/W, 3 rd Party HBA, S/W Red Hat Native S/W, 3 rd Party HBA, S/W Oracle Native S/W, 3 rd Party HBA, S/W SUSE Native S/W, 3 rd Party HBA, S/W Native S/W, Native HBA, S/W Native S/W, 3 rd Party HBA Native S/W No Native S/W, 3 rd Party HBA IBM (AIX) Sun (Solaris) HP (HPUX) VMware Novell (Netware) Native S/W 26 No

i. SCSI Performance Options Software Initiator + Standard NIC Software initiator runs on host CPU Low cost (Free download) May offer highest performance, but highest CPU overhead About 85% of i. SCSI deployments TCP/IP Offload Adapter Lower host CPU overhead Added cost for adapter, but uses OS i. SCSI initiator i. SCSI HBA CPU overhead similar to FC adapter Highest cost solution 27

DAS vs SAN – Cost Compare (6 TB capacity) Storage Server - $8, 000 est. (tower) / $13, 000 est. (rack) 2 Intel Xeon Processors / 8 GB memory each Redundant power supplies RAID Controller / cables / disks Network Adapter (4 port) Microsoft Server 2003 / Symantec backup JBOD - $7, 000 est. Redundant power Disks i. SCSI Storage System - $13, 000 est. Redundant controllers & power Disks 28

Why IP SAN (i. SCSI)? Mature standard (2004) Looks like a local SCSI disk Leverages IP Expertise Economies of scale IP SAN Scalability / Performance Improved TCO vs DAS 29

VOTE #3 – ISCSI USAGE 30

Questions & Answers 31

To download this Webcast after the presentation, go to http: //www. snia. org/about/socialmedia/ 32

Ethernet Storage Forum Members The SNIA Ethernet Storage Forum (ESF) focuses on educating end-users about Ethernet-connected storage networking technologies. Compellent Dell EMC HP Intel Juniper Networks Microsoft Net. App Panasas Sun 33