#C14LV REMINDER Check in on the COLLABORATE mobile app #C14LV Session 917: Understanding Storage – The Latest Trends and Technologies Prepared by: Tom.

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REMINDER

Check in on the COLLABORATE mobile app

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Session 917: Understanding Storage – The Latest Trends and Technologies

Prepared by:Tom CantyServerCare, Inc.

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Good Morning, I'm:

■ Tom Canty, Solutions Architect at ServerCare, Inc.■ 25 years of Oracle experience, mostly as a DBA■ Previous presenter at IOUG, OpenWorld, NoCoug, etc.■ With ServerCare for 15 years, specialists in being the

“safety net” for servers, databases, and staff■ Not a Systems Administrator (but sometimes I play one…)■ Lately focusing a lot on Storage and High Availability■ Oracle reseller, including Oracle's Engineered Systems

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Overview

■ A Brief History of Storage■ The Dominant Disk Protocols■ The Dominant Storage Configurations■ Disk Types■ Ways to Attach Storage Subsystems■ Filesystems■ Latest Technologies

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A Brief History of Storage:

■ Paper “Punch” Cards (still in use!)■ Paper Tape (obsolete)■ Magnetic Reel Tape (obsolete (almost))■ Hard Disks IBM 305 RAMAC →■ Cartridges (DLT, Travan, Ditto, LTO)■ “Super Floppies” (Bernoulli, Zip, LS-120)

(obsolete)■ Removable HD (Jaz, SyQuest) (obsolete)■ Magneto-optical (MiniDisc) (low adoption)■ Optical (CD, DVD, Blu-ray)■ SSD & other memory-based storage■ Caching technologies

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The Dominant Disk Protocols:

■ (P)ATA – (Parallel) Advanced Technology Attachment (obsolete)

■ SATA – Serial ATA■ SCSI – Small Computer System Interface (parallel) (dying)■ SAS – Serial Attached SCSI (replacing SCSI)■ Fibre Channel (serial) – the next to die?■ There are others, such as SSA, but they are not common

Why Serial over Parallel? Isn't Parallel faster?

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The Dominant Storage Configurations:■ RAID – Redundant Array of Inexpensive Disks■ Striping (anything ending in a zero)■ Mirroring (anything with a 1 in it)■ Parity (everything else)■ Tiered Storage■ Elastic Storage

These are not mutually exclusive! In fact the best subsystems make all of them available. However, some vendors handle

these automatically, or with minimal user input.

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Disk Types:

■ Mechanical/Magnetic (Hard) Disks

■ Solid State Drives (SSD)■ NAND (Non-volatile)■ DRAM■ Enterprise Flash Drives (EFD) –

SLC vs. MLC■ Hybrid

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Ways to Attach Storage Subsystems:

■ Direct Attached (DAS)■ Network Attached Storage (NAS)■ Network File System (NFS)■ Server Message Block (SMB, aka CIFS and Samba)■ Storage Area Network (SAN)

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Ways to Attach Storage Subsystems: (continued)■ Fibre Channel (FC)■ iSCSI – don't forget your TOEs!■ Unified and Converged Storage/CNAs■ Infiniband

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Filesystems:■ Normal (Cooked) Filesystems – hundreds of them!■ Raw■ Automatic Storage Management (ASM)■ Clustered Filesystems■ QFS (Sun) and VxFS (Veritas)■ OCFS/OCFS2■ ACFS (aka ASMFS)■ DBFS■ ZFS – Filesystem, LVM, and Tiered/Elastic storage all in

one, plus snapshots

So what's the downside? CDDL vs. GPL. Say hello to Butter (Btrfs) someday...

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Latest Technologies:

■ Tiered Storage – Excellent starting point for SSD adoption■ Data Deduplication – Think about compression and

encryption issues■ Elastic/Thin Provisioned Storage – Requires a new tool,

ASRU■ Direct NFS – Solving the async I/O problem

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Latest Technologies: (continued)

■ Infiniband – Ideal for cluster interconnect, and now storage■ Exadata Hybrid Columnar Compression■ Storage in the Cloud■ Cache-on-HBA (Qlogic QLE10000)■ Fusion-IO – as fast as it gets

The great storage paradigm-shift is on!

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Please complete the session evaluation!We appreciate your feedback and insight

■ Promo code OOW14

Thank You!

I can be contacted at: [email protected]

Latest version of this presentation will be available on our website

Call Us! 888-918-6309http://www.servercare.com