IBM TotalStorage DS300, Руководство по лучшим практикам, Страница: 48 / 680

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IBM TotalStorage DS300 and DS400 Best Practices Guide
3.3 IBM TotalStorage DS300 disk subsystem
Leveraging standard Ethernet infrastructure via iSCSI and low cost SCSI drives,
the DS300 is designed to offer a simple, affordable Storage Area Network (SAN)
solution that can be used in direct attached or network-attached environments.
For even greater flexibility, the DS300 is designed to allow simultaneous support
of a range of operating systems for xSeries and BladeCenter servers—in either
single or dual-controller configurations.
Controller Single or dual active 1 GB iSCSI RAID
Controllers Single or dual active 2 GB FC RAID
Controllers
RAID support 0, 1, 5, 10, 50 0, 1, 5, 10, 50
Capacity (max
based on 300 GB
Ultra320 HDDs) min 36 GB, max 4.2 TB
14 HDD max min 36 GB, max 12 TB with 2 EXP400
Expansion Units
40 HDD max
Drive interface Ultra320 SCSI Ultra320 SCSI
Drive support 36 GB, 73 GB, 146 GB, 300 GB 10,000
RPM Disk Drives;
36 GB, 73 GB, 146 GB 15,000 RPM Disk
Drives 36 GB, 73 GB, 146 GB, 300 GB 10,000
RPM Disk Drives;
36 GB, 73 GB, 146 GB 15,000 RPM Disk
Drives
Logical drives 512 max per subsystem 512 max per subsystem
Logical drives per
array (SRM) 64 created using IBM ServeRAID
Manager console 64 created using IBM ServeRAID
Manager console
Logical drives per
array (CLI)
a
512 created using command line
interface 512 created using command line
interface
Max array size 2 terabytes 2 terabytes
RAID 0, 1, or 5 14 drives max per array 16 drives max per array
RAID 10 or 50 14 drives max per array 40 drives max per array
SCSI buses 2 internal 2 internal, 2 external
LUNs 32 max per initiator 32 max per initiator
Certifications Microsoft Windows MSCS Microsoft Windows MSCS
a. With 512 logical drives in one array, no more arrays can be created because the maximum num-
ber of logical drives per subsystem is reached.
Product DS300 DS400