winget

Enterprise Data Center

12,3

1WindowsUnixLinux 2 3 4volume 5RAID 6IPISCSIFC 7IT

8 9RAIDcache 10 11IOPS 12? ? ? 131 14ILM15

Version 2.0

1.

2.

Version 2.0

ERPLANIBM DS 4700 StorageIBM X366 Server

STKFC SwitchIBM DS3400 LANMSCS ClusterMSCS ClusterPrivatePrivateSANIBM X3650 Server

ERPIBM X 3950 8 FC SwitchHP EVA 7000IBMLAN

Version 2.0

SANRAID LevelStrip SizeSANLAN FreeNAS

Small Computer System Interface (SCSI)

Serial Advanced Technology Attachment (SATA) SATA250PATA5SATAPATA133MBpsSATA150MBps/300MBps/600MBpsCRCPATA

SATA

Serial Attached SCSI (SAS) SCSI SASSASlane6Gbps4lane24Gbps2.4GBps3Gbps SCSI144RAID56SAS RAIDSASSAS

SAS

RAIDRAID (Redundant Arrays of Independent Disks )RAID,()RAID(RAID Levels)

RAID 0Data1Data2Data3Data4Data5Data6Data7Data8Data9300GB300GB300GBRAID 0 Striping without ParityAdvantages:Large Drive Array with the most useable spacePerformance acceleration through data stripingDisadvantages:No Redundancy

RAID 1Data1Mirror1Data2Mirror2Data3Mirror3RAID 1 Disk MirroringAdvantages:Good Read PerformanceExcellent Data RedundancyDisadvantages:Large Overhead for RedundancyTwo Physical Disks Limitation300GB300GB

RAID 5Data1Data2ParityData3ParityData4ParityData5Data6300GB300GB300GBRAID 5 Data Striping with Skewed ParityAdvantages:Extremely efficient use of space for redundancyDisadvantages:Lower read and write performance compared to RAID 1

RAID 00RAID 0RAID 0RAID 00

RAID 10Data1Mirror1Data2Mirror2Data3Mirror3300GB300GBRAID 1RAID 1RAID 10

RAID 50RAID 5RAID 5RAID 50

RAID Levels Overview

RAID

Transactions per Second

Chart1

3575

2641

1816

RAID Levels

I/O Operations per Second

Chart2

183

221

283

RAID 0 Drive Arrays

Transactions per Second

Sheet1

RAID-0RAID 1-ERAID 5-E

357526411816

4 Drives6 Drives8 Drives

183221283

Sheet2

Sheet3

, . . I/O Lotus Notes, Oracle, DB2 MYSQL Server IBM ServeRAID, :, 50%

.

. /I/Oiostat

RAID

(Stripe)Data1Data2Data3Data4Data5Data6Data7Data8Data9StripeStripe Unit

ServeRAID 8 KB, 16 KB, 32 KB, 64 KB. I/O I/O

I/OI/OI/OI/OI/OI/OSystem x Performance LabI/O

(Stripe)

I/O I/OI/O RAID-5

I/OI/O.. iostat, sar/isag

:

142563142563ABCDEFGHABCDEFGHABCDEFGHABCDABEFCDAB12341234

1142563142563ABCDEFGHABCDEFGHABCDEFGHABCDABEFCDAB12341234

2142563142563ABCDEFGHABCDEFGHABCDEFGHABCDABEFCDAB12341234

NAS Network Attached StorageIP NetworkNAS NAS&. NAS,.NAS,.NAS.

NAS IP

SANStorage Area Network(SAN),SAN

: NAS vs. SAN

Version 2.0

IBM Storage Manager

IP

Summary

Version 2.0

Q & A

, . . I/O Lotus Notes, Oracle, DB2 MYSQL Server IBM ServeRAID, :, 50% . . /I/Oiostat RAID

ONTAP 7.2 IBM NAS